--- /dev/null
+Recent user-visible changes to Tcl:
+
+1. No more [command1] [command2] construct for grouping multiple
+commands on a single command line.
+
+2. Semi-colon now available for grouping commands on a line.
+
+3. For a command to span multiple lines, must now use backslash-return
+at the end of each line but the last.
+
+4. "Var" command has been changed to "set".
+
+5. Double-quotes now available as an argument grouping character.
+
+6. "Return" may be used at top-level.
+
+7. More backslash sequences available now. In particular, backslash-newline
+may be used to join lines in command files.
+
+8. New or modified built-in commands: case, return, for, glob, info,
+print, return, set, source, string, uplevel.
+
+9. After an error, the variable "errorInfo" is filled with a stack
+trace showing what was being executed when the error occurred.
+
+10. Command abbreviations are accepted when parsing commands, but
+are not recommended except for purely-interactive commands.
+
+11. $, set, and expr all complain now if a non-existent variable is
+referenced.
+
+12. History facilities exist now. See Tcl.man and Tcl_RecordAndEval.man.
+
+13. Changed to distinguish between empty variables and those that don't
+exist at all. Interfaces to Tcl_GetVar and Tcl_ParseVar have changed
+(NULL return value is now possible). *** POTENTIAL INCOMPATIBILITY ***
+
+14. Changed meaning of "level" argument to "uplevel" command (1 now means
+"go up one level", not "go to level 1"; "#1" means "go to level 1").
+*** POTENTIAL INCOMPATIBILITY ***
+
+15. 3/19/90 Added "info exists" option to see if variable exists.
+
+16. 3/19/90 Added "noAbbrev" variable to prohibit command abbreviations.
+
+17. 3/19/90 Added extra errorInfo option to "error" command.
+
+18. 3/21/90 Double-quotes now only affect space: command, variable,
+and backslash substitutions still occur inside double-quotes.
+*** POTENTIAL INCOMPATIBILITY ***
+
+19. 3/21/90 Added support for \r.
+
+20. 3/21/90 List, concat, eval, and glob commands all expect at least
+one argument now. *** POTENTIAL INCOMPATIBILITY ***
+
+21. 3/22/90 Added "?:" operators to expressions.
+
+22. 3/25/90 Fixed bug in Tcl_Result that caused memory to get trashed.
+
+------------------- Released version 3.1 ---------------------
+
+23. 3/29/90 Fixed bug that caused "file a.b/c ext" to return ".b/c".
+
+24. 3/29/90 Semi-colon is not treated specially when enclosed in
+double-quotes.
+
+------------------- Released version 3.2 ---------------------
+
+25. 4/16/90 Rewrote "exec" not to use select or signals anymore.
+Should be more Sys-V compatible, and no slower in the normal case.
+
+26. 4/18/90 Rewrote "glob" to eliminate GNU code (there's no GNU code
+left in Tcl, now), and added Tcl_TildeSubst procedure. Added automatic
+tilde-substitution in many commands, including "glob".
+
+------------------- Released version 3.3 ---------------------
+
+27. 7/11/90 Added "Tcl_AppendResult" procedure.
+
+28. 7/20/90 "History" with no options now defaults to "history info"
+rather than to "history redo". Although this is a backward incompatibility,
+it should only be used interactively and thus shouldn't present any
+compatibility problems with scripts.
+
+29. 7/20/90 Added "Tcl_GetInteger", "Tcl_GetDouble", and "Tcl_GetBoolean"
+procedures.
+
+30. 7/22/90 Removed "Tcl_WatchInterp" procedure: doesn't seem to be
+necessary, since the same effect can be achieved with the deletion
+callbacks on individual commands. *** POTENTIAL INCOMPATIBILITY ***
+
+31. 7/23/90 Added variable tracing: Tcl_TraceVar, Tcl_UnTraceVar,
+and Tcl_VarTraceInfo procedures, "trace" command.
+
+32. 8/9/90 Mailed out list of all bug fixes since 3.3 release.
+
+33. 8/29/90 Fixed bugs in Tcl_Merge relating to backslashes and
+semi-colons. Mailed out patch.
+
+34. 9/3/90 Fixed bug in tclBasic.c: quotes weren't quoting ]'s.
+Mailed out patch.
+
+35. 9/19/90 Rewrote exec to always use files both for input and
+output to the process. The old pipe-based version didn't work if
+the exec'ed process forked a child and then exited: Tcl waited
+around for stdout to get closed, which didn't happen until the
+grandchild exited.
+
+36. 11/5/90 ERR_IN_PROGRESS flag wasn't being cleared soon enough
+in Tcl_Eval, allowing error messages from different commands to
+pile up in $errorInfo. Fixed by re-arranging code in Tcl_Eval that
+re-initializes result and ERR_IN_PROGRESS flag. Didn't mail out
+patch: changes too complicated to describe.
+
+37. 12/19/90 Added Tcl_VarEval procedure as a convenience for
+assembling and executing Tcl commands.
+
+38. 1/29/91 Fixed core leak in Tcl_AddErrorInfo. Also changed procedure
+and Tcl_Eval so that first call to Tcl_AddErrorInfo need not come from
+Tcl_Eval.
+
+----------------- Released version 5.0 with Tk ------------------
+
+39. 4/3/91 Removed change bars from manual entries, leaving only those
+that came after version 3.3 was released.
+
+40. 5/17/91 Changed tests to conform to Mary Ann May-Pumphrey's approach.
+
+41. 5/23/91 Massive revision to Tcl parser to simplify the implementation
+of string and floating-point support in expressions. Newlines inside
+[] are now treated as command separators rather than word separators
+(this makes newline treatment consistent throughout Tcl).
+*** POTENTIAL INCOMPATIBILITY ***
+
+42. 5/23/91 Massive rewrite of expression code to support floating-point
+values and simple string comparisons. The C interfaces to expression
+routines have changed (Tcl_Expr is replaced by Tcl_ExprLong, Tcl_ExprDouble,
+etc.), but all old Tcl expression strings should be accepted by the new
+expression code.
+*** POTENTIAL INCOMPATIBILITY ***
+
+43. 5/23/91 Modified tclHistory.c to check for negative "keep" value.
+
+44. 5/23/91 Modified Tcl_Backslash to handle backslash-newline. It now
+returns 0 to indicate that a backslash sequence should be replaced by
+no character at all.
+*** POTENTIAL INCOMPATIBILITY ***
+
+45. 5/29/91 Modified to use ANSI C function prototypes. Must set
+"USE_ANSI" switch when compiling to get prototypes.
+
+46. 5/29/91 Completed test suite by providing tests for all of the
+built-in Tcl commands.
+
+47. 5/29/91 Changed Tcl_Concat to eliminate leading and trailing
+white-space in each of the things it concatenates and to ignore
+elements that are empty or have only white space in them. This
+produces cleaner output from the "concat" command.
+*** POTENTIAL INCOMPATIBILITY ***
+
+48. 5/31/91 Changed "set" command and Tcl_SetVar procedure to return
+new value of variable.
+
+49. 6/1/91 Added "while" and "cd" commands.
+
+50. 6/1/91 Changed "exec" to delete the last character of program
+output if it is a newline. In most cases this makes it easier to
+process program-generated output.
+*** POTENTIAL INCOMPATIBILITY ***
+
+51. 6/1/91 Made sure that pointers are never used after freeing them.
+
+52. 6/1/91 Fixed bug in TclWordEnd where it wasn't dealing with
+[] inside quotes correctly.
+
+53. 6/8/91 Fixed exec.test to accept return values of either 1 or
+255 from "false" command.
+
+54. 7/6/91 Massive overhaul of variable management. Associative
+arrays now available, along with "unset" command (and Tcl_UnsetVar
+procedure). Variable traces have been completely reworked:
+interfaces different both from Tcl and C, and multiple traces may
+exist on same variable. Can no longer redefine existing local
+variable to be global. Calling sequences have changed slightly
+for Tcl_GetVar and Tcl_SetVar ("global" is now "flags"). Tcl_SetVar
+can fail and return a NULL result. New forms of variable-manipulation
+procedures: Tcl_GetVar2, Tcl_SetVar2, etc. Syntax of variable
+$-notation changed to support array indexing.
+*** POTENTIAL INCOMPATIBILITY ***
+
+55. 7/6/91 Added new list-manipulation procedures: Tcl_ScanElement,
+Tcl_ConvertElement, Tcl_AppendElement.
+
+56. 7/12/91 Created new procedure Tcl_EvalFile, which does most of the
+work of the "source" command.
+
+57. 7/20/91 Major reworking of "exec" command to allow pipelines,
+more redirection, background. Added new procedures Tcl_Fork,
+Tcl_WaitPids, Tcl_DetachPids, and Tcl_CreatePipeline. The old
+"< input" notation has been replaced by "<< input" ("<" is for
+redirection from a file). Also handles error returns and abnormal
+terminations (e.g. signals) differently.
+*** POTENTIAL INCOMPATIBILITY ***
+
+58. 7/21/91 Added "append" and "lappend" commands.
+
+59. 7/22/91 Reworked error messages and manual entries to use
+?x? as the notation for an optional argument x, instead of [x]. The
+bracket notation was often confused with the use of brackets for
+command substitution. Also modified error messages to be more
+consistent.
+
+60. 7/23/91 Tcl_DeleteCommand now returns an indication of whether
+or not the command actually existed, and the "rename" command uses
+this information to return an error if an attempt is made to delete
+a non-existent command.
+*** POTENTIAL INCOMPATIBILITY ***
+
+61. 7/25/91 Added new "errorCode" mechanism, along with procedures
+Tcl_SetErrorCode, Tcl_UnixError, and Tcl_ResetResult. Renamed
+Tcl_Return to Tcl_SetResult, but left a #define for Tcl_Return to
+avoid compatibility problems.
+
+62. 7/26/91 Extended "case" command with alternate syntax where all
+patterns and commands are together in a single list argument: makes
+it easier to write multi-line case statements.
+
+63. 7/27/91 Changed "print" command to perform tilde-substitution on
+the file name.
+
+64. 7/27/91 Added "tolower", "toupper", "trim", "trimleft", and "trimright"
+options to "string" command.
+
+65. 7/29/91 Added "atime", "mtime", "size", and "stat" options to "file"
+command.
+
+66. 8/1/91 Added "split" and "join" commands.
+
+67. 8/11/91 Added commands for file I/O, including "open", "close",
+"read", "gets", "puts", "flush", "eof", "seek", and "tell".
+
+68. 8/14/91 Switched to use a hash table for command lookups. Command
+abbreviations no longer have direct support in the Tcl interpreter, but
+it should be possible to simulate them with the auto-load features
+described below. The "noAbbrev" variable is no longer used by Tcl.
+*** POTENTIAL INCOMPATIBILITY ***
+
+68.5 8/15/91 Added support for "unknown" command, which can be used to
+complete abbreviations, auto-load library files, auto-exec shell
+commands, etc.
+
+69. 8/15/91 Added -nocomplain switch to "glob" command.
+
+70. 8/20/91 Added "info library" option and TCL_LIBRARY #define. Also
+added "info script" option.
+
+71. 8/20/91 Changed "file" command to take "option" argument as first
+argument (before file name), for consistency with other Tcl commands.
+*** POTENTIAL INCOMPATIBILITY ***
+
+72. 8/20/91 Changed format of information in $errorInfo variable:
+comments such as
+ ("while" body line 1)
+are now on separate lines from commands being executed.
+*** POTENTIAL INCOMPATIBILITY ***
+
+73. 8/20/91 Changed Tcl_AppendResult so that it (eventually) frees
+large buffers that it allocates.
+
+74. 8/21/91 Added "linsert", "lreplace", "lsearch", and "lsort"
+commands.
+
+75. 8/28/91 Added "incr" and "exit" commands.
+
+76. 8/30/91 Added "regexp" and "regsub" commands.
+
+77. 9/4/91 Changed "dynamic" field in interpreters to "freeProc" (procedure
+address). This allows for alternative storage managers.
+*** POTENTIAL INCOMPATIBILITY ***
+
+78. 9/6/91 Added "index", "length", and "range" options to "string"
+command. Added "lindex", "llength", and "lrange" commands.
+
+79. 9/8/91 Removed "index", "length", "print" and "range" commands.
+"Print" is redundant with "puts", but less general, and the other
+commands are replaced with the new commands described in change 78
+above.
+*** POTENTIAL INCOMPATIBILITY ***
+
+80. 9/8/91 Changed history revision to occur even when history command
+is nested; needed in order to allow "history" to be invoked from
+"unknown" procedure.
+
+81. 9/13/91 Changed "panic" not to use vfprintf (it's uglier and less
+general now, but makes it easier to run Tcl on systems that don't
+have vfprintf). Also changed "strerror" not to redeclare sys_errlist.
+
+82. 9/19/91 Lots of changes to improve portability to different UNIX
+systems, including addition of "config" script to adapt Tcl to the
+configuration of the system it's being compiled on.
+
+83. 9/22/91 Added "pwd" command.
+
+84. 9/22/91 Renamed manual pages so that their filenames are no more
+than 14 characters in length, moved to "doc" subdirectory.
+
+85. 9/24/91 Redid manual entries so they contain the supplemental
+macros that they need; can just print with "troff -man" or "man"
+now.
+
+86. 9/26/91 Created initial version of script library, including
+a version of "unknown" that does auto-loading, auto-execution, and
+abbreviation expansion. This library is used by tclTest
+automatically. See the "library" manual entry for details.
+
+----------------- Released version 6.0, 9/26/91 ------------------
+
+87. 9/30/91 Made "string tolower" and "string toupper" check case
+before converting: on some systems, "tolower" and "toupper" assume
+that character already has particular case.
+
+88. 9/30/91 Fixed bug in Tcl_SetResult: wasn't always setting freeProc
+correctly when called with NULL value. This tended to cause memory
+allocation errors later.
+
+89. 10/3/91 Added "upvar" command.
+
+90. 10/4/91 Changed "format" so that internally it converts %D to %ld,
+%U to %lu, %O to %lo, and %F to %f. This eliminates some compatibility
+problems on some machines without affecting behavior.
+
+91. 10/10/91 Fixed bug in "regsub" that caused core dumps with the -all
+option when the last match wasn't at the end of the string.
+
+92. 10/17/91 Fixed problems with backslash sequences: \r support was
+incomplete and \f and \v weren't supported at all.
+
+93. 10/24/91 Added Tcl_InitHistory procedure.
+
+94. 10/24/91 Changed "regexp" to store "-1 -1" in subMatchVars that
+don't match, rather than returning an error.
+
+95. 10/27/91 Modified "regexp" to return actual strings in matchVar
+and subMatchVars instead of indices. Added "-indices" switch to cause
+indices to be returned.
+*** POTENTIAL INCOMPATIBILITY ***
+
+96. 10/27/91 Fixed bug in "scan" where it used hardwired constants for
+sizes of floats and doubles instead of using "sizeof".
+
+97. 10/31/91 Fixed bug in tclParse.c where parse-related error messages
+weren't being storage-managed correctly, causing spurious free's.
+
+98. 10/31/91 Form feed and vertical tab characters are now considered
+to be space characters by the parser.
+
+99. 10/31/91 Added TCL_LEAVE_ERR_MSG flag to procedures like Tcl_SetVar.
+
+100. 11/7/91 Fixed bug in "case" where "in" argument couldn't be omitted
+if all case branches were embedded in a single list.
+
+101. 11/7/91 Switched to use "pid_t" and "uid_t" and other official
+POSIC types and function prototypes.
+
+----------------- Released version 6.1, 11/7/91 ------------------
+
+102. 12/2/91 Modified Tcl_ScanElement and Tcl_ConvertElement in several
+ways. First, allowed caller to request that only backslashes be used
+(no braces). Second, made Tcl_ConvertElement more aggressive in using
+backslashes for braces and quotes.
+
+103. 12/5/91 Added "type", "lstat", and "readlink" options to "file"
+command, plus added new "type" element to output of "stat" and "lstat"
+options.
+
+104. 12/10/91 Manual entries had first lines that caused "man" program
+to try weird preprocessor. Added blank comment lines to fix problem.
+
+105. 12/16/91 Fixed a few bugs in auto_mkindex proc: wasn't handling
+errors properly, and hadn't been upgraded for new "regexp" syntax.
+
+106. 1/2/92 Fixed bug in "file" command where it didn't properly handle
+a file names containing tildes where the indicated user doesn't exist.
+
+107. 1/2/92 Fixed lots of cases in tclUnixStr.c where two different
+errno symbols (e.g. EWOULDBLOCK and EAGAIN) have the same number; Tcl
+will only use one of them.
+
+108. 1/2/92 Lots of changes to configuration script to handle many more
+systems more gracefully. E.g. should now detect the bogus strtoul that
+comes with AIX and substitute Tcl's own version instead.
+
+----------------- Released version 6.2, 1/10/92 ------------------
+
+109. 1/20/92 Config didn't have code to actually use "uid_t" variable
+to set TCL_UIT_T #define.
+
+110. 2/10/92 Tcl_Eval didn't properly reset "numLevels" variable when
+too-deep recursion occurred.
+
+111. 2/29/92 Added "on" and "off" to keywords accepted by Tcl_GetBoolean.
+
+112. 3/19/92 Config wasn't installing default version of strtod.c for
+systems that don't have one in libc.a.
+
+113. 3/23/92 Fixed bug in tclExpr.c where numbers with leading "."s,
+like 0.75, couldn't be properly substituted into expressions with
+variable or command substitution.
+
+114. 3/25/92 Fixed bug in tclUnixAZ.c where "gets" command wasn't
+checking to make sure that it was able to write the variable OK.
+
+115. 4/16/92 Fixed bug in tclUnixAZ.c where "read" command didn't
+compute file size right for device files.
+
+116. 4/23/92 Fixed but in tclCmdMZ.c where "trace vinfo" was overwriting
+the trace command.
+
+----------------- Released version 6.3, 5/1/92 ------------------
+
+117. 5/1/92 Added Tcl_GlobalEval.
+
+118. 6/1/92 Changed auto-load facility to source files at global level.
+
+119. 6/8/92 Tcl_ParseVar wasn't always setting termPtr after errors, which
+sometimes caused core dumps.
+
+120. 6/21/92 Fixed bug in initialization of regexp pattern cache. This
+bug caused segmentation violations in regexp commands under some conditions.
+
+121. 6/22/92 Changed implementation of "glob" command to eliminate
+trailing slashes on directory names: they confuse some systems. There
+shouldn't be any user-visible changes in functionality except for names
+in error messages not having trailing slashes.
+
+122. 7/2/92 Fixed bug that caused 'string match ** ""' to return 0.
+
+123. 7/2/92 Fixed bug in Tcl_CreateCmdBuf where it wasn't initializing
+the buffer to an empty string.
+
+124. 7/6/92 Fixed bug in "case" command where it used NULL pattern string
+after errors in the "default" clause.
+
+125. 7/25/92 Speeded up auto_load procedure: don't reread all the index
+files unless the path has changed.
+
+126. 8/3/92 Changed tclUnix.h to define MAXPATHLEN from PATH_MAX, not
+_POSIX_PATH_MAX.
+
+----------------- Released version 6.4, 8/7/92 ------------------
+
+127. 8/10/92 Changed tclBasic.c so that comment lines can be continued by
+putting a backslash before the newline.
+
+128. 8/21/92 Modified "unknown" to allow the source-ing of a file for
+an auto-load to trigger other nested auto-loads, as long as there isn't
+any recursion on the same command name.
+
+129. 8/25/92 Modified "format" command to allow " " and "+" flags, and
+allow flags in any order.
+
+130. 9/14/92 Modified Tcl_ParseVar so that it doesn't actually attempt
+to look up the variable if "noEval" mode is in effect in the interpreter
+(it just parses the name). This avoids the errors that used to occur
+in statements like "expr {[info exists foo] && $foo}".
+
+131. 9/14/92 Fixed bug in "uplevel" command where it didn't output the
+correct error message if a level was specified but no command.
+
+132. 9/14/92 Renamed manual entries to have extensions like .3 and .n,
+and added "install" target to Makefile.
+
+133. 9/18/92 Modified "unknown" command to emulate !!, !<num>, and
+^<old>^<new> csh history substitutions.
+
+134. 9/21/92 Made the config script cleverer about figuring out which
+switches to pass to "nm".
+
+135. 9/23/92 Fixed tclVar.c to be sure to copy flags when growing variables.
+Used to forget about traces in progress and make extra recursive calls
+on trace procs.
+
+136. 9/28/92 Fixed bug in auto_reset where it was unsetting variables
+that might not exist.
+
+137. 10/7/92 Changed "parray" library procedure to print any array
+accessible to caller, local or global.
+
+138. 10/15/92 Fixed bug where propagation of new environment variable
+values among interpreters took N! time if there exist N interpreters.
+
+139. 10/16/92 Changed auto_reset procedure so that it also deletes any
+existing procedures that are in the auto_load index (the assumption is
+that they should be re-loaded to get the latest versions).
+
+140. 10/21/92 Fixed bug that caused lists to be incorrectly generated
+for elements that contained backslash-newline sequences.
+
+141. 12/9/92 Added support for TCL_LIBRARY environment variable: use
+it as library location if it's present.
+
+142. 12/9/92 Added "info complete" command, Tcl_CommandComplete procedure.
+
+143. 12/16/92 Changed the Makefile to check to make sure "config" has been
+run (can't run config directly from the Makefile because it modifies the
+Makefile; thus make has to be run again after running config).
+
+----------------- Released version 6.5, 12/17/92 ------------------
+
+144. 12/21/92 Changed config to look in several places for libc file.
+
+145. 12/23/92 Added "elseif" support to if. Also, "then", "else", and
+"elseif" may no longer be abbreviated.
+*** POTENTIAL INCOMPATIBILITY ***
+
+146. 12/28/92 Changed "puts" and "read" to support initial "-nonewline"
+switch instead of additional "nonewline" argument. The old form is
+still supported, but it is discouraged and is no longer documented.
+Also changed "puts" to make the file argument default to stdout: e.g.
+"puts foo" will print foo on standard output.
+
+147. 1/6/93 Fixed bug whereby backslash-newline wasn't working when
+typed interactively, or in "info complete".
+
+148. 1/22/93 Fixed bugs in "lreplace" and "linsert" where close
+quotes were being lost from last element before replacement or
+insertion.
+
+149. 1/29/93 Fixed bug in Tcl_AssembleCmd where it wasn't requiring
+a newline at the end of a line before considering a command to be
+complete. The bug caused some very long lines in script files to
+be processed as multiple separate commands.
+
+150. 1/29/93 Various changes in Makefile to add more configuration
+options, simplify installation, fix bugs (e.g. don't use -f switch
+for cp), etc.
+
+151. 1/29/93 Changed "name1" and "name2" identifiers to "part1" and
+"part2" to avoid name conflicts with stupid C++ implementations that
+use "name1" and "name2" in a reserved way.
+
+152. 2/1/93 Added "putenv" procedure to replace the standard system
+version so that it will work correctly with Tcl's environment handling.
+
+----------------- Released version 6.6, 2/5/93 ------------------
+
+153. 2/10/93 Fixed bugs in config script: missing "endif" in libc loop,
+and tried to use strncasecmp.c instead of strcasecmp.c.
+
+154. 2/10/93 Makefile improvements: added RANLIB variable for easier
+Sys-V configuration, added SHELL variable for SGI systems.
+
+----------------- Released version 6.7, 2/11/93 ------------------
+
+153. 2/6/93 Changes in backslash processing:
+ - \Cx, \Mx, \CMx, \e sequences no longer special
+ - \<newline> also eats up any space after the newline, replacing
+ the whole sequence with a single space character
+ - Hex sequences like \x24 are now supported, along with ANSI C's \a.
+ - "format" no longer does backslash processing on its format string
+ - there is no longer any special meaning to a 0 return value from
+ Tcl_Backslash
+ - unknown backslash sequences, like (e.g. \*), are replaced with
+ the following character (e.g. *), instead of just treating the
+ backslash as an ordinary character.
+*** POTENTIAL INCOMPATIBILITY ***
+
+154. 2/6/93 Updated all copyright notices. The meaning hasn't changed
+at all but the wording does a better job of protecting U.C. from
+liability (according to U.C. lawyers, anyway).
+
+155. 2/6/93 Changed "regsub" so that it overwrites the result variable
+in all cases, even if there is no match.
+*** POTENTIAL INCOMPATIBILITY ***
+
+156. 2/8/93 Added support for XPG3 %n$ conversion specifiers to "format"
+command.
+
+157. 2/17/93 Fixed bug in Tcl_Eval where errors due to infinite
+recursion could result in core dumps.
+
+158. 2/17/93 Improved the auto-load mechanism to deal gracefully (i.e.
+return an error) with a situation where a library file that supposedly
+defines a procedure doesn't actually define it.
+
+159. 2/17/93 Renamed Tcl_UnixError procedure to Tcl_PosixError, and
+changed errorCode variable usage to use POSIX as keyword instead of
+UNIX.
+*** POTENTIAL INCOMPATIBILITY ***
+
+160. 2/19/93 Changes to exec and process control:
+ - Added support for >>, >&, >>&, |&, <@, >@, and >&@ forms of redirection.
+ - When exec puts processes into background, it returns a list of
+ their pids as result.
+ - Added support for <file, >file, etc. (i.e. no space between
+ ">" and file name.
+ - Added -keepnewline option.
+ - Deleted Tcl_Fork and Tcl_WaitPids procedures (just use fork and
+ waitpid instead).
+ - Added waitpid compatibility procedure for systems that don't have
+ it.
+ - Added Tcl_ReapDetachedProcs procedure.
+ - Changed "exec" to return an error if there is stderr output, even
+ if the command returns a 0 exit status (it's always been documented
+ this way, but the implementation wasn't correct).
+ - If a process returns a non-zero exit status but doesn't generate
+ any diagnostic output, then Tcl generates an error message for it.
+*** POTENTIAL INCOMPATIBILITY ***
+
+161. 2/25/93 Fixed two memory-management problems having to do with
+managing the old result during variable trace callbacks.
+
+162. 3/1/93 Added dynamic string library: Tcl_DStringInit, Tcl_DStringAppend,
+Tcl_DStringFree, Tcl_DStringResult, etc.
+
+163. 3/1/93 Modified glob command to only return the names of files that
+exist, and to only return names ending in "/" if the file is a directory.
+*** POTENTIAL INCOMPATIBILITY ***
+
+164. 3/19/93 Modified not to use system calls like "read" directly,
+but instead to use special Tcl procedures that retry automatically
+if interrupted by signals.
+
+165. 4/3/93 Eliminated "noSep" argument to Tcl_AppendElement, plus
+TCL_NO_SPACE flag for Tcl_SetVar and Tcl_SetVar2.
+*** POTENTIAL INCOMPATIBILITY ***
+
+166. 4/3/93 Eliminated "flags" and "termPtr" arguments to Tcl_Eval.
+*** POTENTIAL INCOMPATIBILITY ***
+
+167. 4/3/93 Changes to expressions:
+ - The "expr" command now accepts multiple arguments, which are
+ concatenated together with space separators.
+ - Integers aren't automatically promoted to floating-point if they
+ overflow the word size: errors are generated instead.
+ - Tcl can now handle "NaN" and other special values if the underlying
+ library procedures handle them.
+ - When printing floating-point numbers, Tcl ensures that there is a "."
+ or "e" in the number, so it can't be treated as an integer accidentally.
+ The procedure Tcl_PrintDouble is available to provide this function
+ in other contexts. Also, the variable "tcl_precision" can be used
+ to set the precision for printing (must be a decimal number giving
+ digits of precision).
+ - Expressions now support transcendental and other functions, e.g. sin,
+ acos, hypot, ceil, and round. Can add new math functions with
+ Tcl_CreateMathFunc().
+ - Boolean expressions can now have any of the string values accepted
+ by Tcl_GetBoolean, such as "yes" or "no".
+*** POTENTIAL INCOMPATIBILITY ***
+
+168. 4/5/93 Changed Tcl_UnsetVar and Tcl_UnsetVar2 to return TCL_OK
+or TCL_ERROR instead of 0 or -1.
+*** POTENTIAL INCOMPATIBILITY ***
+
+169. 4/5/93 Eliminated Tcl_CmdBuf structure and associated procedures;
+can use Tcl_DStrings instead.
+*** POTENTIAL INCOMPATIBILITY ***
+
+170. 4/8/93 Changed interface to Tcl_TildeSubst to use a dynamic
+string for buffer space. This makes the procedure re-entrant and
+thread-safe, whereas it wasn't before.
+*** POTENTIAL INCOMPATIBILITY ***
+
+171. 4/14/93 Eliminated tclHash.h, and moved everything from it to
+tcl.h
+*** POTENTIAL INCOMPATIBILITY ***
+
+172. 4/15/93 Eliminated Tcl_InitHistory, made "history" command always
+be part of interpreter.
+*** POTENTIAL INCOMPATIBILITY ***
+
+173. 4/16/93 Modified "file" command so that "readable" option always
+exists, even on machines that don't support symbolic links (always returns
+same error as if the file wasn't a symbolic link).
+
+174. 4/26/93 Fixed bugs in "regsub" where ^ patterns didn't get handled
+right (pretended not to match when it really did, and looped infinitely
+if -all was specified).
+
+175. 4/29/93 Various improvements in the handling of variables:
+ - Can create variables and array elements during a read trace.
+ - Can delete variables during traces (note: unset traces will be
+ invoked when this happens).
+ - Can upvar to array elements.
+ - Can retarget an upvar to another variable by re-issuing the
+ upvar command with a different "other" variable.
+
+176. 5/3/93 Added Tcl_GetCommandInfo, which returns info about a Tcl
+command such as whether it exists and its ClientData. Also added
+Tcl_SetCommandInfo, which allows any of this information to be modified
+and also allows a command's delete procedure to have a different
+ClientData value than its command procedure.
+
+177. 5/5/93 Added Tcl_RegExpMatch procedure.
+
+178. 5/6/93 Fixed bug in "scan" where it didn't properly handle
+%% conversion specifiers. Also changed "scan" to use Tcl_PrintDouble
+for printing real values.
+
+179. 5/7/93 Added "-exact", "-glob", and "-regexp" options to "lsearch"
+command to allow different kinds of pattern matching.
+
+180. 5/7/93 Added many new switches to "lsort" to control the sorting
+process: "-ascii", "-integer", "-real", "-command", "-increasing",
+and "-decreasing".
+
+181. 5/10/93 Changes to file I/O:
+ - Modified "open" command to support a list of POSIX access flags
+ like {WRONLY CREAT TRUNC} in addition to current fopen-style
+ access modes. Also added "permissions" argument to set permissions
+ of newly-created files.
+ - Fixed Scott Bolte's bug (can close stdin etc. in application and
+ then re-open them with Tcl commands).
+ - Exported access to Tcl's file table with new procedures Tcl_EnterFile
+ and Tcl_GetOpenFile.
+
+182. 5/15/93 Added new "pid" command, which can be used to retrieve
+either the current process id or a list of the process ids in a
+pipeline opened with "open |..."
+
+183. 6/3/93 Changed to use GNU autoconfig for configuration instead of
+the home-brew "config" script. Also made many other configuration-related
+changes, such as using <unistd.h> instead of explicitly declaring system
+calls in tclUnix.h.
+
+184. 6/4/93 Fixed bug where core-dumps could occur if a procedure
+redefined itself (the memory for the procedure's body could get
+reallocated in the middle of evaluating the body); implemented
+simple reference count mechanism.
+
+185. 6/5/93 Changed tclIndex file format in two ways: (a) it's now
+eval-ed instead of parsed, which makes it 3-4x faster; (b) the entries
+in auto_index are now commands to evaluate, which allows commands to
+be loaded in different ways such as dynamic-loading of C code. The
+old tclIndex file format is still supported.
+
+186. 6/7/93 Eliminated tclTest program, added new "tclsh" program
+that is more like wish (allows script files to be invoked automatically
+using "#!/usr/local/bin/tclsh", makes arguments available to script,
+etc.). Added support for Tcl_AppInit plus default version; this
+allows new Tcl applications to be created without modifying the
+main program for tclsh.
+
+187. 6/7/93 Fixed bug in TclWordEnd that kept backslash-newline from
+working correctly in some cases during interactive input.
+
+188. 6/9/93 Added Tcl_LinkVar and related procedures, which automatically
+keep a Tcl variable in sync with a C variable.
+
+189. 6/16/93 Increased maximum nesting depth from 100 to 1000.
+
+190. 6/16/93 Modified "trace var" command so that error messages from
+within traces are returned properly as the result of the variable
+access, instead of the generic "access disallowed by trace command"
+message.
+
+191. 6/16/93 Added Tcl_CallWhenDeleted to provide callbacks when an
+interpreter is deleted (same functionality as Tcl_WatchInterp, which
+used to exist in versions before 6.0).
+
+193. 6/16/93 Added "-code" argument to "return" command; it's there
+primarily for completeness, so that procedures implementing control
+constructs can reflect exceptional conditions back to their callers.
+
+194. 6/16/93 Split up Tcl.n to make separate manual entries for each
+Tcl command. Tcl.n now contains a summary of the language syntax.
+
+195. 6/17/93 Added new "switch" command to replace "case": allows
+alternate forms of pattern matching (exact, glob, regexp), replaces
+pattern lists with single patterns (but you can use "-" bodies to
+share one body among several patterns), eliminates "in" noise word.
+"Case" command is now obsolete.
+
+196. 6/17/93 Changed the "exec", "glob", "regexp", and "regsub" commands
+to include a "--" switch. All initial arguments starting with "-" are now
+treated as switches unless a "--" switch is present to end the list.
+*** POTENTIAL INCOMPATIBILITY ***
+
+197. 6/17/93 Changed auto-exec so that the subprocess gets stdin, stdout,
+and stderr from the parent. This allows truly interactive sub-processes
+(e.g. vi) to be auto-exec'ed from a tcl shell command line.
+
+198. 6/18/93 Added patchlevel.h, for use in coordinating future patch
+releases, and also added "info patchlevel" command to make the patch
+level available to Tcl scripts.
+
+199. 6/19/93 Modified "glob" command so that a leading "//" in a name
+gets left as is (this is needed for systems like Apollos where "//" is
+the super-root; Tcl used to collapse the two slashes into a single
+slash).
+
+200. 7/7/93 Added Tcl_SetRecursionLimit procedure so that the maximum
+allowable nesting depth can be controlled for an interpreter from C.
+
+----------------- Released version 7.0 Beta 1, 7/9/93 ------------------
+
+201. 7/12/93 Modified Tcl_GetInt and tclExpr.c so that full-precision
+unsigned integers can be specified without overflow errors.
+
+202. 7/12/93 Configuration changes: eliminate leading blank line in
+configure script; provide separate targets in Makefile for installing
+binary and non-binary information; check for size_t and a few other
+potentially missing typedefs; don't put tclAppInit.o into libtcl.a;
+better checks for matherr support.
+
+203. 7/14/93 Changed tclExpr.c to check the termination pointer before
+errno after strtod calls, to avoid problems with some versions of
+strtod that set errno in unexpected ways.
+
+204. 7/16/93 Changed "scan" command to be more ANSI-conformant:
+eliminated %F, %D, etc., added code to ignore "l", "h", and "L"
+modifiers but always convert %e, %f, and %g with implicit "l";
+also added support for %u and %i. Also changed "format" command
+to eliminate %D, %U, %O, and add %i.
+*** POTENTIAL INCOMPATIBILITY ***
+
+205. 7/17/93 Changed "uplevel" and "upvar" so that they can be used
+from global level to global level: this used to generate an error.
+
+206. 7/19/93 Renamed "setenv", "putenv", and "unsetenv" procedures
+to avoid conflicts with system procedures with the same names. If
+you want Tcl's procedures to override the system procedures, do it
+in the Makefile (instructions are in the Makefile).
+*** POTENTIAL INCOMPATIBILITY ***
+
+----------------- Released version 7.0 Beta 2, 7/21/93 ------------------
+
+207. 7/21/93 Fixed bug in tclVar.c where freed memory was accidentally
+used if a procedure returned an element of a local array.
+
+208. 7/22/93 Fixed bug in "unknown" where it didn't properly handle
+errors occurring in the "auto_load" procedure, leaving its state
+inconsistent.
+
+209. 7/23/93 Changed exec's ">2" redirection operator to "2>" for
+consistency with sh. This is incompatible with earlier beta releases
+of 7.0 but not with pre-7.0 releases, which didn't support either
+operator.
+
+210. 7/28/93 Changed backslash-newline handling so that the resulting
+space character *is* treated as a word separator unless the backslash
+sequence is in quotes or braces. This is incompatible with 7.0b1
+and 7.0b2 but is more compatible with pre-7.0 versions that the b1
+and b2 releases were.
+
+211. 7/28/93 Eliminated Tcl_LinkedVarWritable, added TCL_LINK_READ_ONLY to
+Tcl_LinkVar to accomplish same purpose. This change is incompatible
+with earlier beta releases, but not with releases before Tcl 7.0.
+
+212. 7/29/93 Renamed regexp C functions so they won't clash with POSIX
+regexp functions that use the same name.
+
+213. 8/3/93 Added "-errorinfo" and "-errorcode" options to "return"
+command: these allow for much better handling of the errorInfo
+and errorCode variables in some cases.
+
+214. 8/12/93 Changed "expr" so that % always returns a remainder with
+the same sign as the divisor and absolute value smaller than the
+divisor.
+
+215. 8/14/93 Turned off auto-exec in "unknown" unless the command
+was typed interactively. This means you must use "exec" when
+invoking subprocesses, unless it's a command that's typed interactively.
+*** POTENTIAL INCOMPATIBILITY ***
+
+216. 8/14/93 Added support for tcl_prompt1 and tcl_prompt2 variables
+to tclMain.c: makes prompts user-settable.
+
+217. 8/14/93 Added asynchronous handlers (Tcl_AsyncCreate etc.) so
+that signals can be taken cleanly by Tcl applications.
+
+218. 8/16/93 Moved information about open files from the interpreter
+structure to global variables so that a file can be opened in one
+interpreter and read or written in another.
+
+219. 8/16/93 Removed ENV_FLAGS from Makefile, so that there's no
+official support for overriding setenv, unsetenv, and putenv.
+
+220. 8/20/93 Various configuration improvements: coerce chars
+to unsigned chars before using macros like isspace; source ~/.tclshrc
+file during initialization if it exists and program is running
+interactively; allow there to be directories in auto_path that don't
+exist or don't have tclIndex files (ignore them); added Tcl_Init
+procedure and changed Tcl_AppInit to call it.
+
+221. 8/21/93 Fixed bug in expr where "+", "-", and " " were all
+getting treated as integers with value 0.
+
+222. 8/26/93 Added "tcl_interactive" variable to tclsh.
+
+223. 8/27/93 Added procedure Tcl_FilePermissions to return whether a
+given file can be read or written or both. Modified Tcl_EnterFile
+to take a permissions mask rather than separate read and write arguments.
+
+224. 8/28/93 Fixed performance bug in "glob" command (unnecessary call
+to "access" for each file caused a 5-10x slow-down for big directories).
+
+----------------- Released version 7.0 Beta 3, 8/28/93 ------------------
+
+225. 9/9/93 Renamed regexp.h to tclRegexp.h to avoid conflicts with system
+include file by same name.
+
+226. 9/9/93 Added Tcl_DontCallWhenDeleted.
+
+227. 9/16/93 Changed not to call exit C procedure directly; instead
+always invoke "exit" Tcl command so that application can redefine the
+command to do additional cleanup.
+
+228. 9/17/93 Changed auto-exec to handle names that contain slashes
+(i.e. don't use PATH for them).
+
+229. 9/23/93 Fixed bug in "read" and "gets" commands where they didn't
+clear EOF conditions.
+
+----------------- Released version 7.0, 9/29/93 ------------------
+
+230. 10/7/93 "Scan" command wasn't properly aligning things in memory,
+so segmentation faults could arise under some circumstances.
+
+231. 10/7/93 Fixed bug in Tcl_ConvertElement where it forgot to
+backslash leading curly brace when creating lists.
+
+232. 10/7/93 Eliminated dependency of tclMain.c on tclInt.h and
+tclUnix.h, so that people can copy the file out of the Tcl source
+directory to make modified private versions.
+
+233. 10/8/93 Fixed bug in auto-loader that reversed the priority order
+of entries in auto_path for new-style index files. Now things are
+back to the way they were before 3.0: first in auto_path is always
+highest priority.
+
+234. 10/13/93 Fixed bug where Tcl_CommandComplete didn't recognize
+comments and treat them as such. Thus if you typed the line
+ # {
+interactively, Tcl would think that the command wasn't complete and
+wait for more input before evaluating the script.
+
+235. 10/14/93 Fixed bug where "regsub" didn't set the output variable
+if the input string was empty.
+
+236. 10/23/93 Fixed bug where Tcl_CreatePipeline didn't close off enough
+file descriptors in child processes, causing children not to exit
+properly in some cases.
+
+237. 10/28/93 Changed "list" and "concat" commands not to generate
+errors if given zero arguments, but instead to just return an empty
+string.
+
+----------------- Released version 7.1, 11/4/93 ------------------
+
+Note: there is no 7.2 release. It was flawed and was thus withdrawn
+shortly after it was released.
+
+238. 11/10/93 TclMain.c didn't compile on some systems because of
+R_OK in call to "access". Changed to eliminate call to "access".
+
+----------------- Released version 7.3, 11/26/93 ------------------
+
+239. 11/6/93 Modified "lindex", "linsert", "lrange", and "lreplace"
+so that "end" can be specified as an index.
+
+240. 11/6/93 Modified "append" and "lappend" to allow only two
+words total (i.e., nothing to append) without generating an error.
+
+241. 12/2/93 Changed to use EAGAIN as the errno for non-blocking
+I/O instead of EWOULDBLOCK: this should fix problem where non-blocking
+I/O didn't work correctly on System-V systems.
+
+242. 12/22/93 Fixed bug in expressions where cancelled evaluation
+wasn't always working correctly (e.g. "set one 1; eval {1 || 1/$one}"
+failed with a divide by zero error).
+
+243. 1/6/94 Changed TCL_VOLATILE definition from -1 to the address of
+a dummy procedure Tcl_Volatile, since -1 causes portability problems on
+some machines (e.g., Crays).
+
+244. 2/4/94 Added support for unary plus.
+
+245. 2/17/94 Changed Tcl_RecordAndEval and "history" command to
+call Tcl_GlobalEval instead of Tcl_Eval. Otherwise, invocation of
+these facilities in nested procedures can cause unwanted results.
+
+246. 2/17/94 Fixed bug in tclExpr.c where an expression such as
+"expr {"12398712938788234-1298379" != ""}" triggers an integer
+overflow error for the number in quotes, even though it isn't really
+a proper integer anyway.
+
+247. 2/19/94 Added new procedure Tcl_DStringGetResult to move result
+from interpreter to a dynamic string.
+
+248. 2/19/94 Fixed bug in Tcl_DStringResult that caused it to overwrite
+the contents of a static result in some situations. This can cause
+bizarre errors such as variables suddenly having empty values.
+
+249. 2/21/94 Fixed bug in Tcl_AppendElement, Tcl_DStringAppendElement,
+and the "lappend" command that caused improper omission of a separator
+space in some cases. For example, the script
+ set x "abc{"; lappend x "def"
+used to return the result "abc{def" instead of "abc{ def".
+
+250. 3/3/94 Tcl_ConvertElement was outputting empty elements as \0 if
+TCL_DONT_USE_BRACES was set. This depends on old pre-7.0 meaning of
+\0, which is no longer in effect, so it didn't really work. Changed
+to output empty elements as {} always.
+
+251. 3/3/94 Renamed Tcl_DStringTrunc to Tcl_DStringSetLength and extended
+it so that it can be used to lengthen a string as well as shorten it.
+Tcl_DStringTrunc is defined as a macro for backward compatibility, but
+it is deprecated.
+
+252. 3/3/94 Added Tcl_AllowExceptions procedure.
+
+253. 3/13/94 Fixed bug in Tcl_FormatCmd that could cause "format"
+to mis-behave on 64-bit Big-Endian machines.
+
+254. 3/13/94 Changed to use vfork instead of fork on systems where
+vfork exists.
+
+255. 3/23/94 Fixed bug in expressions where ?: didn't associate
+right-to-left as they should.
+
+256. 4/3/94 Fixed "exec" to flush any files used in >@ or >&@
+redirection in exec, so that data buffered for them is written
+before any new data added by the subprocess.
+
+257. 4/3/94 Added "subst" command.
+
+258. 5/20/94 The tclsh main program is now called Tcl_Main; tclAppInit.c
+has a "main" procedure that calls Tcl_Main. This makes it easier to use
+Tcl with C++ programs, which need their own main programs, and it also
+allows an application to prefilter the argument list before calling
+Tcl_Main.
+*** POTENTIAL INCOMPATIBILITY ***
+
+259. 6/6/94 Fixed bug in procedure returns where the errorInfo variable
+could get truncated if an unset trace was invoked as part of returning
+from the procedure.
+
+260. 6/13/94 Added "wordstart" and "wordend" options to "string" command.
+
+261. 6/27/94 Fixed bug in expressions where they didn't properly cancel
+the evaluation of math functions in &&, ||, and ?:.
+
+262. 7/11/94 Incorrect boolean values, like "ogle", weren't being
+handled properly.
+
+263. 7/15/94 Added Tcl_RegExpCompile, Tcl_RegExpExec, and Tcl_RegExpRange,
+which provide lower-level access to regular expression pattern matching.
+
+264. 7/22/94 Fixed bug in "glob" command where "glob -nocomplain ~bad_user"
+would complain about a missing user. Now it doesn't complain anymore.
+
+265. 8/4/94 Fixed bug with linked variables where they didn't behave
+correctly when accessed via upvars.
+
+266. 8/17/94 Fixed bug in Tcl_EvalFile where it didn't clear interp->result.
+
+267. 8/31/94 Modified "open" command so that errors in exec-ing
+subprocesses are returned by the open immediately, rather than
+being delayed until the "close" is executed.
+
+268. 9/9/94 Modified "expr" command to generate errors for integer
+overflow (includes addition, subtraction, negation, multiplication,
+division).
+
+269. 9/23/94 Modified "regsub" to return a count of the number of
+matches and replacements, rather than 0/1.
+
+279. 10/4/94 Added new features to "array" command:
+ - added "get" and "set" commands for easy conversion between arrays
+ and lists.
+ - added "exists" command to see if a variable is an array, changed
+ "names" and "size" commands to treat a non-existent array (or scalar
+ variable) just like an empty one.
+ - added pattern option to "names" command.
+
+280. 10/6/94 Modified Tcl_SetVar2 so that read traces on variables get
+called during append operations.
+
+281. 10/20/94 Fixed bug in "read" command where reading from stdin
+required two control-D's to stop the reading.
+
+282. 11/3/94 Changed "expr" command to use longs for division just like
+all other expr operators; it previously used ints for division.
+
+283. 11/4/94 Fixed bugs in "unknown" procedure: it wasn't properly
+handling exception returns from commands that were executed after
+being auto-loaded.
+
+----------------- Released version 7.4b1, 12/23/94 ------------------
+
+284. 12/26/94 Fixed "install" target in Makefile (couldn't always
+find install program).
+
+285. 12/26/94 Added strcncasecmp procedure to compat directory.
+
+286. 1/3/95 Fixed all procedure calls to explicitly cast arguments:
+implicit conversions from prototypes (especially integer->double)
+don't work when compiling under non-ANSI compilers. Tcl is now clean
+under gcc -Wconversion.
+
+287. 1/4/95 Fixed problem in Tcl_ArrayCmd where same name was used for
+both a label and a variable; caused problems on several older compilers,
+making array command misbehave and causing many errors in Tcl test suite.
+
+----------------- Released version 7.4b2, 1/12/95 ------------------
+
+288. 2/9/95 Modified Tcl_CreateCommand to return a token, and added
+Tcl_GetCommandName procedure. Together, these procedures make it possible
+to track renames of a command.
+
+289. 2/13/95 Fixed bug in expr where "089" was interpreted as a
+floating-point number rather than a bogus octal number.
+*** POTENTIAL INCOMPATIBILITY ***
+
+290. 2/14/95 Added code to Tcl_GetInt and Tcl_GetDouble to check for
+overflows when reading in numbers.
+
+291. 2/18/95 Changed "array set" to stop after first error, rather than
+continuing after error.
+
+292. 2/20/95 Upgraded to use autoconf version 2.2.
+
+293. 2/20/95 Fixed core dump that could occur in "scan" command if a
+close bracket was omitted.
+
+294. 2/27/95 Changed Makefile to always use install-sh for installations:
+there's just too much variation among "install" system programs, which
+makes installation flakey.
+
+----------------- Released version 7.4b3, 3/24/95 ------------------
+
+3/25/95 (bug fix) Changed "install" to "./install" in Makefile so that
+"make install" will work even when "." isn't in the search path.
+
+3/29/95 (bug fix) Fixed bug where the auto-loading mechanism wasn't
+protecting the values of the errorCode and errorInfo variables.
+
+3/29/95 (new feature) Added optional pattern argument to "parray" procedure.
+
+3/29/95 (bug fix) Made the full functionality of
+ "return -code ... -errorcode ..."
+work not just inside procedures, but also in sourced files and at
+top level.
+
+4/6/95 (new feature) Added "pattern" option to "array names" command.
+
+4/18/95 (bug fix) Fixed bug in parser where it didn't allow backslash-newline
+immediately after an argument in braces or quotes.
+
+4/19/95 (new feature) Added tcl_library variable, which application can
+set to override default library directory.
+
+4/30/95 (bug fix) During trace callbacks for array elements, the variable
+name used in the original reference would be temporarily modified to
+separate the array name and element name; if the trace callback used
+the same name string, it would get the wrong name (the array name without
+element). Fixed to restore the variable name before making trace
+callbacks.
+
+4/30/95 (new feature) Added -nobackslashes, -nocommands, and -novariables
+switches to "subst" command.
+
+5/4/95 (new feature) Added TCL_EVAL_GLOBAL flag to Tcl_RecordAndEval.
+
+5/5/95 (bug fix) Format command would overrun memory when printing
+integers with very large precision, as in "format %.1000d 0".
+
+5/5/95 (portability improvement) Changed to use BSDgettimeofday on
+IRIX machines, to avoid compilation problems with the gettimeofday
+declaration.
+
+5/6/95 (bug fix) Changed manual entries to use the standard .TH
+macro instead of a custom .HS macro; the .HS macro confuses index
+generators like makewhatis.
+
+5/9/95 (bug fix) Modified configure script to check for Solaris bug
+that makes vfork unreliable (core dumps result if vforked child
+changes a signal handler); will use fork instead of vfork if the
+bug is present.
+
+6/5/95 (bug fix) Modified "lsort" command to disallow recursive calls
+to lsort from a comparison function. This is needed because qsort
+is not reentrant.
+
+6/5/95 (bug fix) Undid change 243 above: changed TCL_VOLATILE and
+TCL_DYNAMIC back to integer constants rather than procedure addresses.
+This was needed because procedure addresses can have multiple values
+under some dynamic loading systems (e.g. SunOS 4.1 and Windows).
+
+6/8/95 (feature change) Modified interface to Tcl_Main to pass in the
+address of the application-specific initialization procedure.
+Tcl_AppInit is no longer hardwired into Tcl_Main. This is needed
+in order to make Tcl a shared library.
+
+6/8/95 (feature change) Modified Makefile so that the installed versions
+of tclsh and libtcl.a have version number in them (e.g. tclsh7.4 and
+libtcl7.4.a) and the library directory name also has an embedded version
+number (e.g., /usr/local/lib/tcl7.4). This should make it easier for
+Tcl 7.4 to coexist with earlier versions.
+
+----------------- Released version 7.4b4, 6/16/95 ------------------
+
+6/19/95 (bug fix) Fixed bugs in tclCkalloc.c that caused core dumps
+if TCL_MEM_DEBUG was enabled on word-addressed machines such as Crays.
+
+6/21/95 (feature removal) Removed overflow checks for integer arithmetic:
+they just cause too much trouble (e.g. for random number generators).
+
+6/28/95 (new features) Added tcl_patchLevel and tcl_version variables,
+for consistency with Tk.
+
+6/29/95 (bug fix) Fixed problem in Tcl_Eval where it didn't record
+the right termination character if a script ended with a comment. This
+caused erroneous output for the following command, among others:
+puts "[
+expr 1+1
+# duh!
+]"
+
+6/29/95 (message change) Changed the error message for ECHILD slightly
+to provide a hint about why the problem is occurring.
+
+----------------- Released version 7.4, 7/1/95 ------------------
+
+7/18/95 (bug fix) Changed "lreplace" so that nothing is deleted if
+the last index is less than the first index or if the last index
+is < 0.
+
+7/18/95 (bug fix) Fixed bugs with backslashes in comments:
+Tcl_CommandComplete (and "info complete") didn't properly handle
+strings ending in backslash-newline, and neither Tcl_CommandComplete
+nor the Tcl parser handled other backslash sequences right, such
+as two backslashes before a newline.
+
+7/19/95 (bug fix) Modified Tcl_DeleteCommand to delete the hash table
+entry for the command before invoking its callback. This is needed in
+order to deal with reentrancy.
+
+7/22/95 (bug fix) "exec" wasn't reaping processes correctly after
+certain errors (e.g. if the name of the executable was bogus, as
+in "exec foobar").
+
+7/27/95 (bug fix) Makefile.in wasn't using the LIBS variable provided
+by the "configure" script. This caused problems on some SCO systems.
+
+7/27/95 (bug fix) The version of strtod in fixstrtod.c didn't properly
+handle the case where endPtr == NULL.
+
+----------------- Released patch 7.4p1, 7/29/95 -----------------------
+
+8/4/95 (bug fix) C-level trace callbacks for variables were sometimes
+receiving the PART1_NOT_PARSED flag, which could cause errors in
+subsequent Tcl library calls using the flags. (JO)
+
+8/4/95 (bug fix) Calls to toupper and tolower weren't using the
+UCHAR macros, which caused trouble in non-U.S. locales. (JO)
+
+8/10/95 (new feature) Added the "load" command for dynamic loading of
+binary packages, and the Tcl_PackageInitProc prototype for package
+initialization procedures. (JO)
+
+8/23/95 (new features) Added "info sharedlibextension" and
+"info nameofexecutable" commands, plus Tcl_FindExtension procedure. (JO)
+
+8/25/95 (bug fix) If the target of an "upvar" was non-existent but
+had traces set, the traces were silently lost. Change to generate
+an error instead. (JO)
+
+8/25/95 (bug fix) Undid change from 7/19, so that commands can stay
+around while their deletion callbacks execute. Added lots of code to
+handle all of the reentrancy problems that this opens up. (JO)
+
+8/25/95 (bug fix) Fixed core dump that could occur in TclDeleteVars
+if there was an upvar from one entry in the table to the next entry
+in the same table. (JO)
+
+8/28/95 (bug fix) Exec wasn't handling bad user names properly, as
+in "exec ~bogus_user/foo". (JO)
+
+8/29/95 (bug fixes) Changed backslash-newline handling to correct two
+problems:
+ - Only spaces and tabs following the backslash-newline are now
+ absorbed as part of the backslash-newline. Newlinew are no
+ longer absorbed (add another backslash if you want to absorb
+ another newline).
+ - TclWordEnd returns the character just before the backslash in
+ the sequence as the end of the sequence; it used to not consider
+ the backslash-newline as a word separator. (JO)
+
+8/31/95 (new feature) Changed man page installation (with "mkLinks"
+script) to create additional links for manual pages corresponding to
+each of the procedure and command names described in the pages. (JO)
+
+9/10/95 Reorganized Tcl sources for Windows and Mac ports. All sources
+are now in subdirectories: "generic" contains sources that work on all
+platforms, "windows", "mac", and "unix" directories contain platform-
+specific sources. Some UNIX sources are also used on other platforms. (SS)
+
+9/10/95 (feature change) Eliminated exported global variables (they
+don't work with Windows DLLs). Replaced tcl_AsyncReady and
+tcl_FileCloseProc with procedures Tcl_AsyncReady() and
+Tcl_SetFileCloseProc(). Replaced C variable tcl_RcFileName with
+a Tcl variable tcl_rcFileName. (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+9/11/95 (new feature) Added procedure Tcl_SetPanicProc to override
+the default implementation of "panic". (SS)
+
+9/11/95 (new feature) Added "interp" command to allow creation of
+new interpreters and execution of untrusted scripts. Added many new
+procedures, such as Tcl_CreateSlave, Tcl_CreateAlias,and Tcl_MakeSafe,
+to provide C-level access to the interpreter facility. This mechanism
+now provides almost all of the generic functions of Borenstein's and
+Rose's Safe-Tcl (but not any Tk or email-related stuff). (JL)
+
+9/11/95 (feature change) Changed file management so that files are
+no longer shared between interpreters: a file cannot normally be
+referenced in one interpreter if it was opened in another. This
+feature is needed to support safe interpreters. Added Tcl_ShareHandle()
+procedure for allowing files to be shared, and added "interp" argument
+to Tcl_FilePermissions procedure. (JL)
+*** POTENTIAL INCOMPATIBILITY ***
+
+9/11/95 (new feature) Added "AssocData" mechanism, whereby extensions
+can associate their own data with an interpreter and get called back
+when the interpreter is deleted. This is visible at C level via the
+procedures Tcl_SetAssocData and Tcl_GetAssocData. (JL)
+
+9/11/95 (new feature) Added Tcl_ErrnoMsg to translate an errno value
+into a human-readable string. This is now used instead of calling
+strerror because strerror mesages vary dramatically from platform
+to platform, which messes up Tcl tests. Tcl_ErrnoMsg uses the standard
+POSIX messages for all the common signals, and calls strerror for
+signals it doesn't understand.
+
+----------------- Released patch 7.4p2, 9/15/95 -----------------------
+
+----------------- Released 7.5a1, 9/15/95 -----------------------
+
+9/22/95 (bug fix) Changed auto_mkindex to create tclIndex files that
+handle directories whose paths might contain spaces. (RJ)
+
+9/27/95 (bug fix) The "format" command didn't check for huge or negative
+width specifiers, which could cause core dumps. (JO)
+
+9/27/95 (bug fix) Core dumps could occur if an interactive command typed
+to tclsh returned a very long result for tclsh to print out. The bug is
+actually in printf (in Solaris 2.3 and 2.4, at least); switched to use
+puts instead. (JO)
+
+9/28/95 (bug fix) Changed makefile.bc to eliminate a false dependency
+for tcl1675.dll on the Borland run time library. (SS)
+
+9/28/95 (bug fix) Fixed tcl75.dll so it looks for tcl1675.dll instead
+of tcl16.dll. (SS)
+
+9/28/95 (bug fix) Tcl was not correctly detecting the difference
+between Win32s and Windows '95. (SS)
+
+9/28/95 (bug fix) "exec" was not passing environment changes to child
+processes under Windows. (SS)
+
+9/28/95 (bug fix) Changed Tcl to ensure that open files are not passed
+to child processes under Windows. (SS)
+
+9/28/95 (bug fix) Fixed Windows '95 and NT versions of exec so it can
+handle both console and windows apps. (SS)
+
+9/28/95 (bug fix) Fixed Windows version of exec so it no longer leaves
+temp files lying around. Also changed it so the temp files are
+created in the appropriate system dependent temp directory. (SS)
+
+9/28/95 (bug fix) Eliminated source dependency on the Win32s Universal
+Thunk header file, since it is not bundled with VC++. (SS)
+
+9/28/95 (bug fix) Under Windows, Tcl now constructs the HOME
+environment variable from HOMEPATH and HOMEDRIVE when HOME is not
+already set. (SS)
+
+9/28/95 (bug fix) Added support for "info nameofexecutable" and "info
+sharedlibextension" to the Windows version. (SS)
+
+9/28/95 (bug fix) Changed tclsh to correctly parse command line
+arguments so that backslashes are preserved under Windows. (SS)
+
+9/29/95 (bug fix) Tcl 7.5a1 treated either return or newline as end
+of line in "gets", which caused lines ending in CRLF to be treated as
+two separate lines. Changed to allow only character as end-of-line:
+carriage return on Macs, newline elsewhere. (JO)
+
+9/29/95 (new feature) Changed to install "configInfo" file in same
+directory as library scripts. It didn't used to get installed. (JO)
+
+9/29/95 (bug fix) Tcl was not converting Win32 errors into POSIX
+errors under some circumstances. (SS)
+
+10/2/95 (bug fix) Safe interpreters no longer get initialized with
+a call to Tcl_Init(). (JL)
+
+10/1/95 (new feature) Added "tcl_platform" global variable to provide
+environment information such as the instruction set and operating
+system. (JO)
+
+10/1/95 (bug fix) "exec" command wasn't always generating the
+"child process exited abnormally" message when it should have. (JO)
+
+10/2/95 (bug fix) Changed "mkLinks.tcl" so that the scripts it generates
+won't create links that overwrite original manual entries (there was
+a problem where pack-old.n was overwriting pack.n). (JO)
+
+10/2/95 (feature change) Changed to use -ldl for dynamic loading under
+Linux if it is available, but fall back to -ldld if it isn't. (JO)
+
+10/2/95 (bug fix) File sharing was causing refcounts to reach 0
+prematurely for stdin, stdout and stderr, under some circumstances. (JL)
+
+10/2/95 (platform support) Added support for Visual C++ compiler on
+Windows, Windows '95 and Windows NT, code donated by Gordon Chaffee. (JL)
+
+10/3/95 (bug fix) Tcl now frees any libraries that it loads before it
+exits. (SS)
+
+10/03/95 (bug fix) Fixed bug in Macintosh ls command where the -l
+and -C options would fail in anything but the HOME directory. (RJ)
+
+----------------- Released 7.5a2, 10/6/95 -----------------------
+
+10/10/95 (bug fix) "file dirnam /." was returning ":" on UNIX instead
+of "/". (JO)
+
+10/13/95 (bug fix) Eliminated dependency on MKS toolkit for generating
+the tcl.def file from Borland object files. (SS)
+
+10/17/95 (new features) Moved the event loop from Tcl to Tk, made major
+revisions along the way:
+ - New Tcl commands: after, update, vwait (replaces "tkwait variable").
+ - "tkerror" is now replaced with "bgerror".
+ - The following procedures are similar to their old Tk counterparts:
+ Tcl_DoOneEvent, Tcl_Sleep, Tcl_DoWhenIdle, Tcl_CancelIdleCall,
+ Tcl_CreateFileHandler, Tcl_DeleteFileHandler, Tcl_CreateTimerHandler,
+ Tcl_DeleteTimerHandler, Tcl_BackgroundError.
+ - Revised notifier, add new concept of "event source" with the following
+ procedures: Tcl_CreateEventSource, Tcl_DeleteEventSource,
+ Tcl_WatchFile, Tcl_SetMaxBlockTime, Tcl_FileReady, Tcl_QueueEvent,
+ Tcl_WaitForEvent. (JO)
+
+10/31/95 (new features) Implemented cross platform file name support to make
+it easier to write cross platform scripts. Tcl now understands 4 file naming
+conventions: Windows (both DOS and UNC), Mac, Unix, and Network. The network
+convention is a new naming mechanism that can be used to paths in a platform
+independent fashion. See the "file" command manual page for more details.
+The primary interfaces changes are:
+ - All Tcl commands that expect a file name now accept both network and
+ native form.
+ - Two new "file" subcommands, "nativename" and "networkname", provide a
+ way to convert between network and native form.
+ - Renamed Tcl_TildeSubst to Tcl_TranslateFileName, and changed it so that
+ it always returns a filename in native form. Tcl_TildeSubst is defined
+ as a macro for backward compatibility, but it is deprecated. (SS)
+
+11/5/95 (new feature) Made "tkerror" and "bgerror" synonyms, so that
+either name can be used to manipulate the command (provides temporary
+backward compatibility for existing scripts that use tkerror). (JO)
+
+11/5/95 (new feature) Added exit handlers and new C procedures
+Tcl_CreateExitHandler, Tcl_DeleteExitHandler, and Tcl_Exit. (JO)
+
+11/6/95 (new feature) Added pid command for Macintosh version of
+Tcl (it didn't previously exist on the Mac). (RJ)
+
+11/7/95 (new feature) New generic IO facility and support for IO to
+files, pipes and sockets based on a common buffering scheme. Support
+for asynchronous (non-blocking) IO and for event driver IO. Support
+for automatic (background) asynchronous flushing and asynchronous
+closing of channels. (JL)
+
+11/7/95 (new feature) Added new commands "fconfigure" and "fblocked"
+to support new I/O features such as nonblocking I/O. Added "socket"
+command for creating TCP client and server sockets. (JL).
+
+11/7/95 (new feature) Complete set of C APIs to the new generic IO
+facility:
+ - Opening channels: Tcl_OpenFileChannel, Tcl_OpenCommandChannel,
+ Tcl_OpenTcpClient, Tcl_OpenTcpServer.
+ - I/O procedures on channels, which roughly mirror the ANSI C stdio
+ library: Tcl_Read, Tcl_Gets, Tcl_Write, Tcl_Flush, Tcl_Seek,
+ Tcl_Tell, Tcl_Close, Tcl_Eof, Tcl_InputBlocked, Tcl_GetChannelOption,
+ Tcl_SetChannelOption.
+ - Extension mechanism for creating new kinds of channels:
+ Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
+ Tcl_GetChannelName, Tcl_GetChannelFile, Tcl_RegisterChannel,
+ Tcl_UnregisterChannel, Tcl_GetChannel.
+ - Event-driven I/O on channels: Tcl_CreateChannelHandler,
+ Tcl_DeleteChannelHandler. (JL)
+
+11/7/95 (new feature) Channel driver interface specification to allow
+new types of channels to be added easily to Tcl. Currently being used
+in three drivers - for files, pipes and TCP-based sockets. (JL).
+
+11/7/95 (new feature) interp delete now takes any number of path
+names of interpreters to delete, including zero. (JL).
+
+11/8/95 (new feature) implemented 'info hostname' and Tcl_GetHostName
+command to get host name of machine on which the Tcl process is running. (JL)
+
+11/9/95 (new feature) Implemented file APIs for access to low level files
+on each system. The APIs are: Tcl_CloseFile, Tcl_OpenFile, Tcl_ReadFile,
+Tcl_WriteFile and Tcl_SeekFile. Also implemented Tcl_WaitPid which waits
+in a system dependent manner for a child process. (JL)
+
+11/9/95 (new feature) Added Tcl_UpdateLinkedVar procedure to force a
+Tcl variable to be updated after its C variable changes. (JO)
+
+11/9/95 (bug fix) The glob command has been totally reimplemented so
+that it can support different file name conventions. It now handles
+Windows file names (both UNC and drive-relative) properly. It also
+supports nested braces correctly now. (SS)
+
+11/13/95 (bug fix) Fixed Makefile.in so that configure can be run
+from a clean directory separate from the Tcl source tree, and compilations
+can be performed there. (JO)
+
+11/14/95 (bug fix) Fixed file sharing between interpreters and file
+transferring between interpreters to correctly manage the refcount so that
+files are closed when the last reference to them is discarded. (JL)
+
+11/14/95 (bug fix) Fixed gettimeofday implementation for the
+Macintosh. This fixes several timing related bugs. (RJ)
+
+11/17/95 (new feature) Added missing support for info nameofexecutable
+on the Macintosh. (RJ)
+
+11/17/95 (bug fix) The Tcl variables argc argv and argv0 now return
+something reasonable on the Mac. (RJ)
+
+11/22/95 (new feature) Implemented "auto-detect" mode for end of line
+translations. On input, standalone "\r" mean MAC mode, standalone "\n"
+mean Unix mode and "\r\n" means Windows mode. On output, the mode is
+modified to whatever the platform specific mode for that platform is. (JL)
+
+11/24/95 (feature change) Replaced "configInfo" file with tclConfig.sh,
+which is more complete and uses slightly different names. Also
+arranged for tclConfig.sh to be installed in the platform-specific
+library directory instead of Tcl's script library directory. (JO)
+*** POTENTIAL INCOMPATIBILITY with Tcl 7.5a2, but not with Tcl 7.4 ***
+
+----------------- Released patch 7.4p3, 11/28/95 -----------------------
+
+12/5/95 (new feature) Added Tcl_File facility to support platform-
+independent file handles. Changed all interfaces that used Unix-
+style integer fd's to use Tcl_File's instead. (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+12/5/95 (new feature) Added a new "clock" command to Tcl. The command
+allows you to get the current "clicks" or seconds & allows you to
+format or scan human readable time/date strings. (RJ)
+
+12/18/95 (new feature) Moved Tk_Preserve, Tk_Release, and Tk_EventuallyFree
+to Tcl, renamed to Tcl_Preserve, Tcl_Release, and Tcl_EventuallyFree. (JO)
+
+12/18/95 (new feature) Added new "package" command and associated
+procedures Tcl_PkgRequire and Tcl_PkgProvide. Also wrote
+pkg_mkIndex library procedure to create index files from binaries
+and scripts. (JO)
+
+12/20/95 (new feature) Added Tcl_WaitForFile procedure. (JO)
+
+12/21/95 (new features) Made package name argument to "load" optional
+(Tcl will now attempt to guess the package name if necessary). Also
+added Tcl_StaticPackage and support in "load" for statically linked
+packages. (JO)
+
+12/22/95 (new feature) Upgraded the foreach command to accept multiple
+loop variables and multiple value lists. This lets you iterate over
+multiple lists in parallel, and/or assign multiple loop variables from
+one value list during each iteration. The only potential compatibility
+problem is with scripts that used loop variables with a name that could be
+construed to be a list of variable names (i.e. contained spaces). (BW)
+
+1/5/96 (new feature) Changed tclsh so it builds as a console mode
+application under Windows. Now tclsh can be used from the command
+line with pipes or interactively. Note that this only works under
+Windows 95 or NT. (SS)
+
+1/17/96 (new feature) Modified Makefile and configure script to allow
+Tcl to be compiled as a shared library: use the --enable-shared option
+when configuing. (JO)
+
+1/17/96 (removed obsolete features) Removed the procedures Tcl_EnterFile
+and Tcl_GetOpenFile: these no longer make sense with the new I/O system. (JL)
+*** POTENTIAL INCOMPATIBILITY ***
+
+1/19/96 (bug fixes) Prevented formation of circular aliases, through the
+Tcl 'interp alias' command and through the 'rename' command, as well as
+through the C API Tcl_CreateAlias. (JL)
+
+1/19/96 (bug fixes) Fixed several bugs in direct deletion of interpreters
+with Tcl_DeleteInterp when the interpreter is a slave; fixes based on a
+patch received from Viktor Dukhovni of ESM. (JL)
+
+1/19/96 (new feature) Implemented on-close handlers for channels; added
+the C APIs Tcl_CreateCloseHandler and Tcl_DeleteCloseHandler. (JL)
+
+1/19/96 (new feature) Implemented portable error reporting mechanism; added
+the C APIs Tcl_SetErrno and Tcl_GetErrno. (JL)
+
+1/24/96 (bug fix) Unknown command processing properly invokes external
+commands under Windows NT and Windows '95 now. (SS)
+
+1/23/96 (bug fix) Eliminated extremely long startup times under Windows '95.
+The problem was a result of the option database initialization code that
+concatenated $HOME with /.Xdefaults, resulting in a // in the middle of the
+file name. Under Windows '95, this is incorrectly interpreted as a UNC
+path. They delays came from the network timeouts needed to determine that
+the file name was invalid. Tcl_TranslateFileName now suppresses duplicate
+slashes that aren't at the beginning of the file name. (SS)
+
+1/25/96 (bug fix) Changed exec and open to create children so they are
+attached to the application's console if it exists. (SS)
+
+1/31/96 (bug fix) Fixed command line parsing to handle embedded
+spaces under Windows. (SS)
+
+----------------- Released 7.5b1, 2/1/96 -----------------------
+
+2/7/96 (bug fix) Fixed off by one error in argument parsing code under
+Windows. (SS)
+
+2/7/96 (bug fix) Fixed bugs in VC++ makefile that improperly
+initialized the tcl75.dll. Fixed bugs in Borland makefile that caused
+build failures under Windows NT. (SS)
+
+2/9/96 (bug fix) Fixed deadlock problem in AUTO end of line translation
+mode which would cause a socket server with several concurrent clients
+writing in CRLF mode to hang. (JL)
+
+2/9/96 (API change) Replaced -linemode option to fconfigure with a
+new -buffering option, added "none" setting to enable immediate write. (JL)
+*** INCOMPATIBILITY with b1 ***
+
+2/9/96 (new feature) Added C API Tcl_InputBuffered which returns the count
+of bytes currently buffered in the input buffer of a channel, and o for
+output only channels. (JL)
+
+2/9/96 (new feature) Implemented asynchronous connect for sockets. (JL)
+
+2/9/96 (new feature) Added C API Tcl_SetDefaultTranslation to set (per
+channel) the default end of line translation mode. This is the mode that
+will be installed if an output operation is done on the channel while it is
+still in AUTO mode. (JL)
+
+2/9/96 (bug fix) Changed Tcl_OpenCommandChannel interface to properly
+handle all of the combinations of stdio inheritance in background
+pipelines. See the Tcl_OpenFileChannel(3) man page for more
+info. This change fixes the bug where exec of a background pipeline
+was not getting passed the stdio handles properly. (SS)
+
+2/9/96 (bug fix) Removed the new Tcl_CreatePipeline interface, and
+restored the old version for Unix platforms only. All new code should
+use Tcl_CreateCommandChannel instead. (SS)
+
+2/9/96 (bug fix) Changed Makefile.in to use -L and -ltcl7.5 for Tcl
+library so that shared libraries are more likely to be found correctly
+on more platforms. (JO)
+
+2/13/96 (new feature) Added C API Tcl_SetNotifierData and
+Tcl_GetNotifierData to allow notifier and channel driver writers to
+associate data with a Tcl_File. The result of this change is that
+Tcl_GetFileInfo now always returns an OS file handle, and Tcl_GetFile
+can be used to construct a Tcl_File for an externally constructed OS
+handle. (SS)
+
+2/13/96 (bug fix) Changed Windows socket implementation so it doesn't
+set SO_REUSEADDR on server sockets. Now attempts to create a server
+socket on a port that is already in use will be properly identified
+and an error will be generated. (SS)
+
+2/13/96 (bug fix) Fixed problems with DLL initialization under Visual
+C++ that left the C run time library uninitialized. (SS)
+
+2/13/96 (bug fix) Fixed Windows socket initialization so it loads
+winsock the first time it is used, rather than at the time tcl75.dll
+is loaded. This should fix the bug where the modem immediately starts
+trying to connect to a service provider when wish or tclsh are
+started. (SS)
+
+2/13/96 (new feature) Added C APIs Tcl_MakeFileChannel and
+Tcl_MakeTcpClientChannel to wrap up existing fds and sockets into
+channels. Provided implementations on Unix and Windows. (JL)
+
+2/13/96 (bug fix) Fixed bug with seek leaving EOF and BLOCKING set. (JL)
+
+2/14/96 (bug fix) Fixed reentrancy problem in fileevent handling
+and made it more robust in the face of errors. (JL)
+
+2/14/96 (feature change) Made generic IO level emulate blocking mode if the
+channel driver is unable to provide it, e.g. if the low level device is
+always nonblocking. Thus, now blocking behavior is an advisory setting for
+channel drivers and can be ignored safely if the channel driver is unable
+to provide it. (JL)
+
+2/15/96 (new feature) Added "binary" end of line translation mode, which is
+a synonym of "lf" mode. (JL)
+
+2/15/96 (bug fix) Fixed reentrancy problem in fileevent handling vs
+deletion of channel event handlers. (JL)
+
+2/15/96 (bug fix) Fixed bug in event handling which would cause a
+nonblocking channel to not see further readable events after the first
+readable event that had insufficient input. (JL)
+
+2/17/96 (bug fix) "info complete" didn't properly handle comments
+in nested commands. (JO)
+
+2/21/96 (bug fix) "exec" under Windows NT/95 did not properly handle
+very long command lines (>200 chars). (SS)
+
+2/21/96 (bug fix) Sockets could get into an infinite loop if a read
+event arrived after all of the available data had been read. (SS)
+
+2/22/96 (bug fix) Added cast of st_size elements to (long) before
+sprintf-ing in "file size" command. This is needed to handle systems
+like NetBSD with 64-bit file offsets. (JO)
+
+----------------- Released 7.5b2, 2/23/96 -----------------------
+
+2/23/96 (bug fix) TCL_VARARGS macro in tcl.h wasn't defined properly
+when compiling with C++. (JO)
+
+2/24/96 (bug fix) Removed dependencies on Makefile in the UNIX Makefile:
+this caused problems on some platforms (like Linux?). (JO)
+
+2/24/96 (bug fix) Fixed configuration bug that made Tcl not compile
+correctly on Linux machines with neither -ldl or -ldld. (JO)
+
+2/24/96 (new feature) Added a block of comments and definitions to
+Makefile.in to make it easier to have Tcl's TclSetEnv etc. replace
+the library procedures setenv etc, so that calls to setenv etc. in
+the application automatically update the Tcl "env" variable. (JO)
+
+2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
+to C API Tcl_Close and simplified closing of command channels. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
+
+2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
+to C type definition Tcl_DriverCloseProc; modified all channel drivers to
+implement close procedures that accept the additional argument. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
+
+2/28/96 (bug fix) Fixed memory leak that could occur if an upvar
+referred to an element of an array in the same stack frame as the
+upvar. (JO)
+
+2/29/96 (feature change) Modified both Tcl_DoOneEvent and Tcl_WaitForEvent
+so that they return immediately in cases where they would otherwise
+block forever (e.g. if there are no event handlers of any sort). (JO)
+
+2/29/96 (new feature) Added C APIs Tcl_GetChannelBufferSize and
+Tcl_SetChannelBufferSize to set and retrieve the size, in bytes, for
+buffers allocated to store input or output in a channel. (JL)
+
+2/29/96 (new feature) Added option -buffersize to Tcl fconfigure command
+to allow Tcl scripts to query and set the size of channel buffers. (JL)
+
+2/29/96 (feature removed) Removed channel driver function to specify
+the buffer size to use when allocating a buffer. Removed the C typedef
+for Tcl_DriverBufferSizeProc. Channels are now created with a default
+buffer size of 4K. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
+
+2/29/96 (feature change) The channel driver function for setting blocking
+mode on the device may now be NULL. If the generic code detects that the
+function is NULL, operations that set the blocking mode on the channel
+simply succeed. (JL)
+
+3/2/96 (bug fix) Fixed core dump that could occur if a syntax error
+(such as missing close paren) occurred in an array reference with a
+very long array name. (JO)
+
+3/4/96 (bug fix) Removed code in the "auto_load" procedure that deletes
+all existing auto-load information whenever the "auto_path" variable
+is changed. Instead, new information adds to what was already there.
+Otherwise, changing the "auto_path" variable causes all package-
+related information to be lost. If you really want to get rid of
+existing auto-load information, use auto_reset before setting auto_path. (JO)
+
+3/5/96 (new feature) Added version suffix to shared library names so that
+Tcl will compile under NetBSD and FreeBSD (I hope). (JO)
+
+3/6/96 (bug fix) Cleaned up error messages in new I/O system to correspond
+more closely to old I/O system. (JO)
+
+3/6/96 (new feature) Added -myaddr and -myport options to the socket
+command, removed -tcp and -- options. This lets clients and servers
+choose a particular interface. Also changed the default server address
+from the hostname to INADDR_ANY. The server accept callback now gets
+passed the client's port as well as IP address. The C interfaces for
+Tcl_OpenTcpClient and Tcl_OpenTcpServer have changed to support the
+above changes. (BW)
+*** POTENTIAL INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
+
+3/6/96 (changed feature) The library function auto_mkindex will now
+default to using the pattern "*.tcl" if no pattern is given. (RJ)
+
+3/6/96 (bug fix) The socket channel code for the Macintosh has been
+rewritten to use native MacTcp. (RJ)
+
+3/7/96 (new feature) Added Tcl_SetStdChannel and Tcl_GetStdChannel
+interfaces to allow applications to explicitly set and get the global
+standard channels. (SS)
+
+3/7/96 (bug fix) Tcl did close not the file descriptors associated
+with "stdout", etc. when the corresponding channels were closed. (SS)
+
+3/7/96 (bug fix) Reworked shared library and dynamic loading stuff to
+try to get it working under AIX. Added new @SHLIB_LD_LIBS@ autoconf
+symbol as part of this. AIX probably doesn't work yet, but it should
+be a lot closer. (JO)
+
+3/7/96 (feature change) Added Tcl_ChannelProc typedef and changed the
+signature of Tcl_CreateChannelHandler and Tcl_DeleteChannelHandler to take
+Tcl_ChannelProc arguments instead of Tcl_FileProc arguments. This change
+should not affect any code outside Tcl because the signatures of
+Tcl_ChannelProc and Tcl_FileProc are compatible. (JL)
+
+3/7/96 (API change) Modified signature of Tcl_GetChannelOption to return
+an int instead of char *, and to take a Tcl_DString * argument. Modified
+the implementation so that the option name can be NULL, to mean that the
+call should retrieve a list of alternating option names and values. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
+
+3/7/96 (API change) Added Tcl_DriverSetOptionProc, Tcl_DriverGetOptionProc
+typedefs, added two slots setOptionProc and getOptionProc to the channel
+type structure. These may be NULL to indicate that the channel type does
+not support any options. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
+
+3/7/96 (feature change) stdin, stdout and stderr can now be put into
+nonblocking mode. (JL)
+
+3/8/96 (feature change) Eliminated dependence on the registry for
+finding the Tcl library files. (SS)
+
+----------------- Released 7.5b3, 3/8/96 -----------------------
+
+3/12/96 (feature improvement) Modified startup script to look in several
+different places for the Tcl library directory. This should allow Tcl
+to find the libraries under all but the weirdest conditions, even without
+the TCL_LIBRARY environment variable being set. (JO)
+
+3/13/96 (bug fix) Eliminated use of the "linger" option from the Windows
+socket implementation. (JL)
+
+3/13/96 (new feature) Added -peername and -sockname options for fconfigure
+for socket channels. Code contributed by John Haxby of HP. (JL)
+
+3/13/96 (bug fix) Fixed panic and core dump that would occur if the accept
+callback script on a server socket encountered an error. (JL)
+
+3/13/96 (feature change) Added -async option to the Tcl socket command.
+If the command is creating a client socket and the flag is present, the
+client is connected asynchronously. If the option is absent (the default),
+the client socket is connected synchronously, and the command returns only
+when the connection has been completed or failed. This change was suggested
+by Mark Diekhans. (JL)
+
+3/13/96 (feature change) Modified the signature of Tcl_OpenTcpClient to
+take an additional int argument, async. If nonzero, the client is connected
+to the server asynchronously. If the value is zero, the connection is made
+synchronously, and the call to Tcl_OpenTcpClient returns only when the
+connection fails or succeeds. This change was suggested by Mark Diekhans. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
+
+3/14/96 (bug fix) "tclsh bogus_file_name" didn't print an error message. (JO)
+
+3/14/96 (bug fix) Added new procedures to tclCkalloc.c so that libraries
+and applications can be compiled with TCL_MEM_DEBUG even if Tcl isn't
+(however, the converse is still not true). Patches provided by Jan
+Nijtmans. (JO)
+
+3/15/96 (bug fix) Marked standard IO handles of a process as close-on-exec
+to fix bug in Ultrix where exec was not sharing standard IO handles with
+subprocesses. Fix suggested by Mark Diekhans. (JL)
+
+3/15/96 (bug fix) Fixed asynchronous close mechanism so that it closes the
+channel instead of leaking system resources. The manifestation was that Tcl
+would eventually run out of file descriptors if it was handling a large
+number of nonblocking sockets or pipes with high congestion. (JL)
+
+3/15/96 (bug fix) Fixed tests so that they no longer leak file descriptors.
+The manifestation was that Tcl would eventually run out of file descriptors
+if the tests were rerun many times (> a hundred times on Solaris). (JL)
+
+3/15/96 (bug fix) Fixed channel creation code so that it never creates
+unnamed channels. This would cause a panic and core dump when the channel
+was closed. (JL)
+
+3/16/96 (bug fixes) Made lots of changes in configuration stuff to get
+Tcl working under AIX (finally). Tcl should now support the "load"
+command under AIX and should work either with or without shared
+libraries for Tcl and Tk. (JO)
+
+3/21/96 (configuration improvement) Changed configure script so it
+doesn't use version numbers (as in -ltcl7.5 and libtcl7.5.so) under
+SunOS 4.1, where they don't work anyway. (JO)
+
+3/22/96 (new feature) Added C API Tcl_InterpDeleted that allows extension
+writers to discover when an interpreter is being deleted. (JL)
+
+3/22/96 (bug fix) The standard IO channels are now added to each
+trusted interpreter as soon as the interpreter is created. This ensures
+against the bug where a child would do IO before the master had done any,
+and then the child is destroyed - the standard IO channels would be then
+closed and the master would be unable to do any IO. (JL)
+
+3/22/96 (bug fix) Made Tcl more robust against interpreter deletion, by
+using Tcl_Preserve, Tcl_Release and Tcl_EventuallyFree to split the process
+of interpreter deletion into two distinct phases. Also went through all of
+Tcl and added calls to Tcl_Preserve and Tcl_Delete where needed. (JL)
+
+3/22/96 (bug fix) Fixed several places where C code was reading and writing
+into freed memory, especially during interpreter deletion. (JL)
+
+3/22/96 (bug fix) Fixed very deep bug in Tcl_Release that caused memory to
+be freed twice if the release callback did Tcl_Preserve and Tcl_Release on
+the same memory as the chunk currently being freed. (JL)
+
+3/22/96 (bug fix) Removed several memory leaks that would cause memory
+buildup on half-K chunks in the generic IO level. (JL)
+
+3/22/96 (bug fix) Fixed several core dumps which occurred when new
+AssocData was being created during the cleanups in interpreter deletion.
+The solution implemented now is to loop repeatedly over the AssocData until
+none is left to clean up. (JL)
+
+3/22/96 (bug fix) Fixed a bug in event handling which caused an infinite
+loop if there were no files being watched and no timer. Fix suggested by
+Jan Nijtmans. (JL)
+
+3/22/96 (bug fix) Fixed Tcl_CreateCommand, Tcl_DeleteCommand to be more
+robust if the interpreter is being deleted. Also fixed several order
+dependency bugs in Tcl_DeleteCommand which kicked in when an interpreter
+was being deleted. (JL)
+
+3/26/96 (bug fix) Upon a "short read", the generic code no longer calls
+the driver for more input. Doing this caused blocking on some platforms
+even on nonblocking channels. Bug and fix courtesy Mark Roseman. (JL)
+
+3/26/96 (new feature) Added 'package Tcltest' which is present only in
+test versions of Tcl; this allows the testing commands to be loaded into
+new interpreters besides the main one. (JL)
+
+3/26/96 (restored feature) Recreated the Tcl_GetOpenFile C API. You can
+now get a FILE * from a registered channel; Unix only. (JL)
+
+3/27/96 (bug fix) The regular expression code did not support more
+than 9 subexpressions. It now supports up to 20. (SS)
+
+4/1/96 (bug fixes) The CHANNEL_BLOCKED bit was being left on on a short
+read, so that fileevents wouldn't fire correctly. Bug reported by Mark
+Roseman.(JL, RJ)
+
+4/1/96 (bug fix) Moved Tcl_Release to match Tcl_Preserve exactly, in
+tclInterp.c; previously interpreters were being freed only conditionally
+and sometimes not at all. (JL)
+
+4/1/96 (bug fix) Fixed error reporting in slave interpreters when the
+error message was being generated directly by C code. Fix suggested by
+Viktor Dukhovni of ESM. (JL)
+
+4/2/96 (bug fixes) Fixed a series of bugs in Windows sockets that caused
+events to variously get lost, to get sent multiple times, or to be ignored
+by the driver. The manifestation was blocking if the channel is blocking,
+and either getting EAGAIN or infinite loops if the channel is nonblocking.
+This series of bugs was found by Ian Wallis of Cisco. Now all tests (also
+those that were previously commented out) in socket.test pass. (JL, SS)
+
+4/2/96 (feature change/bug fix) Eliminated network name support in
+favor of better native name support. Added "file split", "file join",
+and "file pathtype" commands. See the "file" man page for more
+details. (SS)
+*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
+
+4/2/96 (bug fix) Changed implementation of auto_mkindex so tclIndex
+files will properly handle path names in a cross platform context. (SS)
+
+4/5/96 (bug fix) Fixed Tcl_ReadCmd to use the channel buffer size as the
+chunk size it reads, instead of a fixed 4K size. Thus, on large reads, the
+user can set the channel buffer size to a large size and the read will
+occur orders of magnitude faster. For example, on a 2MB file, reading in 4K
+chunks took 34 seconds, while reading in 1MB chunks took 1.5 seconds (on a
+SS-20). Problem identified and fix suggested by John Haxby of HP. (JL)
+
+4/5/96 (bug fix) Fixed socket creation code to invoke gethostbyname only if
+inet_addr failed (very unlikely). Before this change the order was reversed
+and this made things much slower than they needed to be (gethostbyname
+generally requires an RPC, which is slow). Problem identified and fix
+suggested by John Loverso of OSF. (JL)
+
+4/9/96 (feature change) Modified "auto" translation mode so that it
+recognizes any of "\n", "\r" and "\r\n" in input as end of line, so
+that a file can have mixed end-of-line sequences. It now outputs
+the platform specific end of line sequence on each platform for files and
+pipes, and for sockets it produces crlf in output on all platforms. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
+
+4/11/96 (new feature) Added -eofchar option to Tcl_SetChannelOption to allow
+setting of an end of file character for input and output. If an input eof
+char is set, it is recognized as EOF and further input from the channel is
+not presented to the caller. If an output eof char is set, on output, that
+byte is appended to the channel when it is closed. On Unix and Macintosh,
+all channels start with no eof char set for input or output. On Windows,
+files and pipes start with input and output eof chars set to Crlt-Z (ascii
+26), and sockets start with no input or output eof char. (JL)
+*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
+
+4/17/96 (bug fix) Fixed series of bugs with handling of crlf sequence split
+across buffer boundaries in input, in AUTO mode. (JL, BW)
+
+4/17/96 (test suite improvement) Fixed test suite so that tests that
+depend on the availability of Unix commands such as echo, cat and others
+are not run if these commands are not present. (JL)
+
+4/17/96 (test suite improvement) The socket test now automatically starts,
+on platformst that support exec, a separate process for remote testsing. (JL)
+
+----------------- Released 7.5, 4/21/96 -----------------------
+
+5/1/96 (bug fix) "file tail ~" did not correctly return the tail
+portion of the user's home directory. (SS)
+
+5/1/96 (bug fix) Fixed bug in TclGetEnv where it didn't lookup environment
+variables correctly: could confuse "H" and "HOME", for example. (JO)
+
+5/1/96 (bug fix) Changed to install tclConfig.sh under "make install-binaries",
+not "make install-libraries". (JO)
+
+5/2/96 (bug fix) Changed pkg_mkIndex not to attempt to "load" a file unless
+it has the standard shared library extension. On SunOS, attempts to load
+Tcl scripts cause the whole application to be aborted (there's no way to
+get the error back into Tcl). (JO)
+
+5/7/96 (bug fix) Moved initScript in tclUnixInit.c to writable memory to
+avoid potential core dumps. (JO)
+
+5/7/96 (bug fix) Auto_reset procedure was removing procedure from init.tcl,
+such as pkg_mkIndex. (JO)
+
+5/7/96 (bug fix) Fixed cast on socket address resolution code that
+would cause a failure to connect on Dec Alphas. (JL)
+
+5/7/96 (bug fix) Added "time", "subst" and "fileevent" commands to set of
+commands available in a safe interpreter. (JL)
+
+5/13/96 (bug fix) Preventing OS level handles for stdin, stdout and stderr
+from being implicitly closed when the last reference to the standard
+channel containing that handle is discarded when an interpreter is deleted.
+Explicitly closing standard channels by using "close" still works. (JL)
+
+5/21/96 (bug fix) Do not create channels for stdin, stdout and stderr on
+Unix if the devices are closed. This prevents a duplicate channel name
+panic later on when the fd is used to open a channel and the channel is
+registered in an interpreter. (JL)
+
+5/23/96 (bug fix) Fixed bug that prevented the use of standard channels in
+interpreters created after the last interpreter was destroyed. In the sequence
+
+ interp = Tcl_CreateInterp();
+ Tcl_DeleteInterp(interp);
+ interp = Tcl_CreateInterp();
+
+channels for stdio would not be available in the second interpreter. (JL)
+
+5/23/96 (bug fix) Fixed bug that allowed Tcl_MakeFileChannel to create new
+channels with Tcl_Files in them that are already used by another channel.
+This would cause core dumps when the Tcl_Files were being freed twice. (JL)
+
+5/23/96 (bug fix) Fixed a logical timing bug that caused a standard channel
+to be removed from the standard channel table too early when the channel
+was being closed. If the channel was being flushed asynchronously, it could
+get recreated before being actually destroyed, and the recreated channel
+would contain the same Tcl_File as the one being closed, leading to
+dangling pointers and core dumps. (JL)
+
+5/27/96 (bug fix) Fixed a bug in Tcl_GetChannelOption which caused it to
+always return a list of one element, a list of the settings, for
+-translation and -eofchar options. Now correctly returns the value
+described by the documentation (Mark Diekhans found this, thanks!). (JL)
+
+5/30/96 (bug fix) Fixed a couple of syntax errors in io.test. (JL)
+
+5/30/96 (bug fix) If a fileevent scripts gets an error, delete it before
+causing a background error. This is to allow the error handler to reinstall
+the fileevent and to prevent infinite loops if the event loop is reentered
+in the error handler. (JL)
+
+5/31/96 (bug fix) Channels now will get properly flushed on exit. (JL)
+
+6/5/96 (bug fix) Changed Tcl_Ckalloc, Tcl_Ckfree, and Tcl_Ckrealloc to
+Tcl_Alloc, Tcl_Free, and Tcl_Realloc. Added documentation for these
+routines now that they are officially supported. Extension writers
+should use these routines instead of free() and malloc(). (SS)
+
+6/10/96 (bug fix) Changes the Tcl close command so that it no longer
+waits on nonblocking pipes for the piped processes to exit; instead it
+reaps them in the background. (JL)
+
+6/11/96 (bug fix) Increased the length of the listen queue for server
+sockets on Unix from 5 to 100. Some OSes will disregard this and reset it
+to 5, but we should try to get as long a queue as we can, for performance
+reasons. (JL)
+
+6/11/96 (bug fix) Fixed windows sockets bug that caused a cascade of events
+if the fileevent script read less than was available. Now reading less than
+is available does not cause a flood of Tcl events. (JL, SS)
+
+6/11/96 (bug fix) Fixed bug in background flushing on closed channels that
+would prevent the last buffer from getting flushed. (JL)
+
+6/13/96 (bug fix) Fixed bug in Windows sockets that caused a core dump if
+a DLL linked with tcl.dll and referred to e.g. ntohs() without opening a
+Tcl socket. The problem was that the indirection table was not being
+initialized. (JL)
+
+6/13/96 (bug fix) Fixed OS level resource leak that would occur when a
+Tcl channel was still registered in some interpreter when the process
+exits. Previously the channel was not being closed and the OS level handles
+were not being released; the output was being flushed but the device was
+not being closed. Now the device is properly closed. This was only a
+problem on Win3.1 and MacOS. (JL, SS)
+
+6/28/96 (bug fix) Fixed bug where transient errors were leaving an error
+code around, so that it would erroneously get reported later. This bug was
+exercised intermittently by closing a channel to a file on a very loaded
+NFS server, or to a socket whose other end blocked. (JL, BW)
+
+7/3/96 (bug fix) Fileevents declared in an interpreter are now deleted
+when the channel is closed in that interpreter. Before this fix, the
+fileevent would hang around until the channel is completely closed, and
+would cause errors if events happened before the channel was closed. This
+could happen in two cases: first if the channel is shared between several
+interpreters, and second if an async flush is in progress that prevents the
+channel from being closed until the flush finishes. (JL)
+
+7/10/96 (bug fix) Fixed bugs in both "lrange" and "lreplace" commands
+where too much white space was being removed. For example, the command
+ lreplace {\}\ hello} end end
+was returning "\}\", losing the significant space in the first list
+element and corrupting the list. (JO)
+
+7/20/96 (bug fix) The procedure pkg_mkIndex didn't work properly for
+extensions that depend on Tk, because it didn't load Tk into the child
+interpreter before loading the extension. Now it loads Tk if Tk is
+present in the parent. (JO)
+
+7/23/96 (bug fix) Added compat version of strftime to fix crashes
+resulting from bad implementations under Windows. (SS)
+
+7/23/96 (bug fix) Standard implementations of gmtime() and localtime()
+under Windows did not handle dates before 1970, so they were replaced
+with a revised implementation. (SS)
+
+7/23/96 (bug fix) Tcl would crash on exit under Borland 5.0 because
+the global environ pointer was left pointing to freed memory. (SS)
+
+7/29/96 (bug fix) Fixed memory leak in Tcl_LoadCmd that could occur if
+a package's AppInit procedure called Tcl_StaticPackage to register
+static packages. (JO)
+
+8/1/96 (bug fix) Fixed a series of bugs in Windows sockets so that async
+writebehind in the presence of read event handlers now works, and so that
+async writebehind also works on sockets for which a read event handler was
+declared and whose channels were then closed before the async write
+finished. The bug was reported by John Loverso and Steven Wahl,
+independently, test case supplied by John Loverso. (JL)
+
+----------------- Released patch 7.5p1, 8/2/96 -----------------------
+
+5/8/96 (new feature) Added Tcl_GetChannelMode C API for retrieving whether
+a channel is open for reading and writing. (JL)
+
+5/8/96 (API changes) Revised C APIs for channel drivers:
+ - Removed all Tcl_Files from channel driver interface; you can now have
+ channels that are not based on Tcl_Files.
+ - Added channelReadyProc and watchChannelProc procedures to interface;
+ these are used to implement event notification for channels.
+ - Added getFileProc to channel driver, to allow the generic IO code
+ to retrieve a Tcl_File from a channel (presumably if the channel
+ uses Tcl_Files they will be stored inside its instanceData). (JL)
+*** INCOMPATIBILITY with Tcl 7.5 ***
+
+5/8/96 (API change) The Tcl_CreateChannel C API was modified to not take
+Tcl_File arguments, and instead to take a mask specifying whether the
+channel is readable and/or writable. (JL)
+*** INCOMPATIBILITY with Tcl 7.5 ***
+
+6/3/96 (bug fix) Made Tcl_SetVar2 robust against the case where the value
+of the variable is a NULL pointer instead of "". (JL)
+
+6/17/96 (bug fix) Fixed "reading uninitialized memory" error reported by
+Purify, in Tcl_Preserve/Tcl_Release. (JL)
+
+8/9/96 (bug fix) Fixed bug in init.tcl that caused incorrect error message
+if the act of autoloading a procedure caused the procedure to be invoked
+again. (JO)
+
+8/9/96 (bug fix) Configure script produced bad library names and extensions
+under SunOS and a few other platforms if the --disable-load switch was used.
+(JO)
+
+8/9/96 (bug fix) Tcl_UpdateLinkedVar generated an error if the variable
+being updated was read-only. (JO)
+
+8/14/96 (bug fix) The macintosh now supports synchronous socket
+connections. Other minor bugs were also fixed. (RJ)
+
+8/15/96 (configuration improvement) Changed the file patchlevel.h
+to be tclPatch.h. This avoids conflict with the Tk file and is now
+in 8.3 format on the Windows platform. (RJ)
+
+8/20/96 (bug fix) Fixed core dump in interp alias command for interpreters
+created with Tcl_CreateInterp (as opposed to with Tcl_CreateSlave). (JL)
+
+8/20/96 (bug fix) No longer masking ECONNRESET on Windows sockets so
+that the higher level of the IO mechanism sees the error instead of
+entering an infinite loop. (JL)
+
+8/20/96 (bug fix) Destroying the last interpreter no longer closes the
+standard channels. (JL)
+
+8/20/96 (bug fix) Closing one of the stdin, stdout or stderr channels and
+then opening a new channel now correctly assigns the new channel as the
+standard channel that was closed. (JL)
+
+8/20/96 (bug fix) Added code to unix/tclUnixChan.c for using ioctl with
+FIONBIO instead of fcntl with O_NONBLOCK, for those versions of Unix where
+either O_NONBLOCK is not supported or implemented incorrectly. (JL)
+
+8/21/96 (bug fix) Fixed "file extension" so it correctly returns the
+extension on files like "foo..c" as "..c" instead of ".c". (SS)
+
+8/22/96 (bug fix) If environ[] contains static strings, Tcl would core
+dump in TclSetupEnv because it was trying to write NULLs into the actual
+data in environ[]. Now we instead copy as appropriate. (JL)
+
+8/22/96 (added impl) Added missing implementation of Tcl_MakeTcpClientChannel
+for Windows platform. Code contributed by Mark Diekhans. (JL)
+
+8/22/96 (new feature) Added a new memory allocator for the Macintosh
+version of Tcl. It's quite a bit faster than MetroWerk's version. (RJ)
+
+8/26/96 (documentation update) Removed old change bars (for all changes
+in Tcl 7.5 and earlier releases) from manual entries. (JO)
+
+8/27/96 (enhancement) The exec and open commands behave better and work in
+more situations under Windows NT and Windows 95. Documentation describes
+what is still lacking. (CS)
+
+8/27/96 (enhancement) The Windows makefiles will now compile even if the
+compiler is not in the path and/or the compiler's environment variables
+have not been set up. (CS)
+
+8/27/96 (configuration improvement) The Windows resource files are
+automatically updated when the version/patch level changes. The header file
+now has a comment that reminds the user which other files must be manually
+updated when the version/patch level changes. (CS)
+
+8/28/96 (new feature) Added file manipulation features (copy, rename, delete,
+mkdir) that are supported on all platforms. They are implemented as
+subcommands to the "file" command. See the documentation for the "file"
+command for more information. (JH)
+
+----------------- Released 7.6b1, 8/30/96 -----------------------
+
+9/3/96 (bug fix) Simplified code so that standard channels are created
+lazily, they are added to an interpreter lazily, and they are never added
+to a safe interpreter. (JL)
+
+9/3/96 (bug fix) Closing a channel after closing a standard channel, e.g.
+stdout, would cause the implicit recreation of that standard channel. (JL)
+
+9/3/96 (new feature) Now calling Tcl_RegisterChannel with a NULL
+interpreter increments the refcount so that code outside any interpreter
+can use channels that are also registered in interpreters, without worrying
+that the channel may turn into a dangling pointer at any time. Calling
+Tcl_UnregisterChannel with a NULL interpreter only decrements the recount
+so that code outside any interpreter can safely declare it is no longer
+interested in a channel. (JL)
+
+9/4/96 (new features) Two changes to dynamic loading:
+ - If the file name is empty in the "load" command and there is no
+ statically loaded version of the package, a dynamically loaded
+ version will be used if there is one.
+ - Tcl_StaticPackage ignores redundant calls for the same package. (JO)
+
+9/6/96 (bug fix) Platform specific procedures for manipulating files are
+no longer macros and have been prefixed with "Tclp", such as TclpRenameFile.
+Unix file code now handles symbolic links and other special files correctly.
+The semantics of file copy and file rename has been changed so that if
+a target directory exists, the source files will NOT be merged with the
+existing files. (JH)
+
+9/6/96 (bug fix) If standard channel is NULL, because Tcl cannot connect
+to the standard channel, do not increment the refcount. The channel can
+be NULL if there is for example no standard input. (JL)
+
+9/6/96 (portability improvement) Changed parsing of backslash sequences
+like \n to translate directly to absolute values like 0xA instead of
+letting the compiler do the translation. This guarantees that the
+translation is done the same everywhere. (JO)
+
+9/9/96 (bug fix) If channel is opened and not associated with any
+interpreter, but Tcl decides to use it as one of the standard channels, it
+became impossible to close the channel with Tcl_Close -- instead you had
+to call Tcl_UnregisterChannel. Fixed now so that it's safe to call
+Tcl_Close even when Tcl is using the channel as one of the standard ones. (JL)
+
+9/11/96 (feature change) The Tcl library is now placed in the Tcl
+shared libraries resource. You no longer need to place the Tcl files
+in your applications explicitly. (RJ)
+
+9/11/96 (feature change) Extensions no longer automatically have the
+resource fork of the extension opened for it. Instead you need to
+use the tclMacLibrary.c file in your extension. (RJ)
+*** POTENTIAL INCOMPATIBILITY ***
+
+9/12/96 (bug fix) The extension loading mechanism on the Macintosh now
+looks at the 'cfrg' resource to determine where to load the code
+fragment from. This means FAT fragments should now work. (RJ)
+
+9/18/96 (enhancement) The exec and open commands behave better and work in
+more situations under Windows 3.X. Documentation describes what is still
+lacking. (CS)
+
+9/19/96 (bug fix) Fixed a panic which would occur if you delete a
+non-existent alias before any aliases are created. Now instead correctly
+returns an error that the alias is not found. (JL)
+
+9/19/96 (bug fix) Slave interpreters could rename aliases and they would
+not get deleted when the alias was being redefined. This led to dangling
+pointers etc. (JL)
+
+9/19/96 (bug fix) Fixed a panic where a hash table entry was being deleted
+twice during alias management operations. (JL)
+
+9/19/96 (bug fix) Fixed bug in event loop that could cause the input focus
+in Tk to get confused during menu traversal, among other problems. The
+problem was related to handling of the "marker" when its event was
+deleted. (JO)
+
+9/26/96 (bug fix) Windows was losing EOF on a socket if the FD_CLOSE event
+happened to precede any left over FD_READ events. Now correctly remembers
+seeing FD_CLOSE, so that trailing FD_READ events are not discarded if they
+do not contain any data. This allows Tcl to correctly get a zero read and
+notice EOF. (JL)
+
+9/26/96 (bug fix) Was not resetting READABLE state properly on sockets
+under Windows if the driver discarded an FD_READ event because no data was
+present. Now correctly resets the state. (JL)
+
+9/30/96 (bug fix) Made EOF sticky on Windows sockets, so that fileevent
+readable will fire repeatedly until the socket is closed. Previously the
+fileevent fired only once. This could lead to never-closed connections if
+the Tcl script in the fileevent wasn't closing the socket immediately. (JL)
+
+10/2/96 (new feature) Improved the package loader:
+ - Added new variable tcl_pkgPath, which holds the default
+ directories under which packages are normally installed (each
+ package goes in a separate subdirectory of a directory in
+ $tcl_pkgPath). These directories are included in auto_path by
+ default.
+ - Changed the package auto-loader to look for pkgIndex.tcl files
+ not only in the auto_path directories but also in their immediate
+ children. This should make it easier to install and uninstall
+ packages (don't have to change auto_path or merge pkgIndex.tcl
+ files). (JO)
+
+10/3/96 (bug fix) Changed tclsh to look for tclshrc.tcl instead of
+tclsh.rc on startup under Windows. This is more consistent with wish and
+uses the right extension. (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+10/8/96 (bug fix) Convertclock does not parse 24-hour times of the
+form "hhmm" correctly when hour = 00. In the parse code, hour must be
+>= 100 for minutes to be non-zero. Thanks to Lint LaCour for this
+bug fix. (RJ)
+
+10/11/96 (bug fix) Under Windows, the pid command returned the process
+handle instead of the process id. (SS)
+
+----------------- Released 7.6, 10/16/96 -----------------------
+
+10/29/96 (bug fix) Under Windows, sockets would consume 100% CPU time after
+the first accept(), due to a typo. (JL)
+
+10/29/96 (bug fix) Incorrect refcount management caused standard channels
+not to get deleted at process exit or DLL unload time, causing a memory
+leak of upwards of 20K each time. (JL)
+
+11/7/96 (bug fix) Auto-exec didn't work on file names that contained
+spaces. (JO)
+
+11/8/96 (bug fix) Fixed core dump that would occur if more than one call
+to Tcl_DeleteChannelHandler was made to delete a given channel handler. (JL)
+
+11/8/96 (bug fix) Fixed test for return value in Tcl_Seek and Tcl_SeekCmd
+to only treat -1 as error, instead of all negative numbers. (JL)
+
+11/12/96 (bug fix) Do not blocking waiting for processes at the end of a
+pipe during exit cleanup. (JL)
+
+11/12/96 (bug fix) If we are in exit cleanup, do not close the system level
+file descriptors 0, 1 and 2. Previously they were being closed which is
+incorrect, in the embedded case. This led to weird behavior for programs
+that want to interpose on I/O through the standard file descriptors (e.g.
+Netscape Navigator). (JL)
+
+11/15/96 (bug fix) Fixed core dump on Windows sockets due to dependency on
+deletion order at exit. Now all socket functions check to see if sockets
+are (still) initialized, before calling through function pointers. Before,
+they would call and might end up calling unloaded object code. (JL)
+
+11/15/96 (bug fix) Fixed core dump in Windows socket initialization routine
+if sockets were not installed on the system. Before, it was not properly
+checking the result of attempting to load the socket DLL, so it would call
+through uninitialized function pointers. (JL)
+
+11/15/96 (bug fix) Fixed memory leak in Windows sockets which left socket
+DLL handle open and could hold the socket DLL in memory uneccessarily,
+until a reboot. (JL)
+
+12/4/96 (bug fix) Fixed bug in Macintosh socket code that could result
+in lost data if a client was closed too soon after sending data. (RJ)
+
+12/17/96 (bug fix) Fixed deadlock bug in Windows sockets due to losing an
+event. This was happening because of an interaction between buffering and
+nonblocking mode on sockets. Now switched to sockets being blocking by
+default, so we are also no longer emulating blocking through a private
+event loop. (JL)
+
+1/21/97 (performance bug fix) Client TCP connections were slow to create
+because getservbyname was always called on the port. Now this is only
+done if Tcl_GetInt fails. (BW)
+
+1/21/97 (configuration fix) Made it possible to override TCL_PACKAGE_PATH
+during make. Previously it was only set during autoconf process.
+
+1/29/97 (bug fix) Fixed some problems with the clock command that
+impacted how dates were scaned after the year 2000. (RJ)
+
+----------------- Released 7.6p2, 1/31/97 -----------------------
+
+2/5/97 (bug fix) Fixed a bug where in CR-LF translation mode, \r bytes
+in the input stream were not being handled correctly. (JL)
+
+2/24/97 (bug fix) Fix bug with exec under Win32s not being able to create
+stderr file which caused all execs to fail. Fixed temp file leak under
+Win32s. Fixed optional parameter bug with SearchPath that only happened
+under Win32s 1.25. (CCS)
+
+----------------------------------------------------------
+Changes for Tcl 7.6 go above this line.
+Changes for Tcl 7.7 go below this line.
+----------------------------------------------------------
+
+5/8/96 (new feature) Added Tcl_Ungets C API for putting a sequence of bytes
+into a channel's input buffer. This can be used for "push" model channels
+where the input is obtained via callbacks instead of by request of the
+generic IO code. No Tcl procedure yet. (JL)
+
+11/15/96 (new feature) Implemented hidden commands. New C APIs:
+ Tcl_HideCommand -- hides an existing exposed command.
+ Tcl_ExposeCommand -- exposes an existing hidden command.
+New tcl APIs:
+ interp invokehidden -- invokes a hidden command in a slave.
+ interp hide -- hides an existing exposed command.
+ interp expose -- exposes an existing hidden command.
+ interp hidden -- returns a list of hidden commands.
+The implementation of Safe Tcl now uses the new hidden commands facility
+to implement the safe base, instead of deleting the commands from a safe
+interpreter. (JL)
+
+11/15/96 (new feature) Implemented the safe base, a mechanism for
+installing and requesting security policies, purely in Tcl code. Overloads
+the package command to also allow an interpreter to "require" a policy. The
+following new library commands are provided:
+ tcl_safeCreateInterp -- creates a slave an initializes the
+ policy mechanism.
+ tcl_safeInitInterp -- initializes an existing slave with the
+ policy mechanism.
+ tcl_safeDeleteInterp -- deletes a slave and deinitializes the
+ policy mechanism.
+Added a new file to the library, safeinit.tcl, to hold implementation. (JL)
+On 7/9/97, removed the policy loading mechanism from the Safe Base. Left
+only the Safe Base aliases dealing with auto-loading and source. (JL)
+
+12/6/96 (new feature) Implemented Tcl_Finalize, an API that should be
+called by a process when it is done using Tcl. This API runs all the exit
+handlers to allow them to clean up resources etc. (JL)
+
+12/17/96 (new feature) Add an http Tcl script package to the Tcl library.
+This package implements the client side of HTTP/1.0; the GET, HEAD,
+and POST requests. (BW)
+
+1/21/97 (new feature) Added a "marktrusted" subcommand to the "interp" and
+to the interpreter object command. It removes the "safe" mark on an
+interpreter and disables hard-wired checks for safety in the C sources. (JL)
+
+1/21/97 (removed feature) Removed "vwait" from set of commands available in
+a safe interpreter. (JL)
+
+2/11/97 (new feature, bug fix) http package. Added -accept to http_config
+so you can set the Accept header. Added -handler option to http_get so
+you can supply your own data handler. Also fixed POST operation to
+set the correct MIME type on the request. (BW)
+
+----------------------------------------------------------
+Changes for Tcl 7.7 go above this line.
+Changes for Tcl 8.0 go below this line.
+----------------------------------------------------------
+
+9/17/96 (bug fix) Using "upvar" it was possible to turn an array element
+into an array itself. Changed to disallow this; it was quirky and didn't
+really work correctly anyway. (JO)
+
+10/21/96 (new feature) The core of the Tcl interpreter has been replaced
+with an on-the-fly compiler that translates Tcl scripts to bytecoded
+instructions; a new interpreter then executes the bytecodes. The compiler
+introduces only a few minor changes at the level of Tcl scripts. The biggest
+changes are to expressions and lists.
+ - A second level of substitutions is no longer done for expressions.
+ This substantially improves their execution time. This means that
+ the expression "$x*4" produces a different result than in the past
+ if x is "$y+2". Fortunately, not much code depends on the old
+ two-level semantics. Some expressions that do, such as
+ "expr [join $list +]" can be recoded to work in Tcl8.0 by adding
+ an eval: e.g., "eval expr [join $list +]".
+ - Lists are now completely parsed on the first list operation to
+ create a faster internal representation. In the past, if you had a
+ misformed list but the erroneous part was after the point you
+ inserted or extracted an element, then you never saw an error.
+ In Tcl8.0 an error will be reported. This should only effect
+ incorrect programs that took advantage of behavior of the old
+ implementation that was not documented in the man pages.
+Other changes to Tcl scripts are discussed in the web page at
+http://www.scriptics.com/doc/compiler.html. (BL)
+*** POTENTIAL INCOMPATIBILITY ***
+
+10/21/96 (new feature) In earlier versions of Tcl, strings were used as a
+universal representation; in Tcl 8.0 strings are replaced with Tcl_Obj
+structures ("objects") that can hold both a string value and an internal
+form such as a binary integer or compiled bytecodes. The new objects make it
+possible to store information in efficient internal forms and avoid the
+constant translations to and from strings that occurred with the old
+interpreter. There are new many new C APIs for managing objects. Some of the
+new library procedures for objects (such as Tcl_EvalObj) resemble existing
+string-based procedures (such as Tcl_Eval) but take advantage of the
+internal form stored in Tcl objects for greater speed. Other new procedures
+manage objects and allow extension writers to define new kinds of objects.
+See the manual entries doc/*Obj*.3 (BL)
+
+10/24/96 (bug fix) Fixed memory leak on exit caused by some IO related
+data structures not being deallocated on exit because their refcount was
+artificially boosted. (JL)
+
+10/24/96 (bug fix) Fixed core dump in Tcl_Close if called with NULL
+Tcl_Channel. (JL)
+
+11/19/96 (new feature) Added library procedures for finding word
+breaks in strings in a platform specific manner. See the library.n
+manual entry for more information. (SS)
+
+11/22/96 (feature improvements) Added support for different levels of
+tracing during bytecode compilation and execution. This should help in
+tracking down suspected problems with the compiler or with converting
+existing code to use Tcl8.0. Two global Tcl variables, traceCompile
+and traceExec, can be set to generate tracing information in stdout:
+ - traceCompile: 0 no tracing (default)
+ 1 trace compilations of top level commands and procs
+ 2 trace and display instructions for all compilations
+ - traceExec: 0 no tracing
+ 1 trace only calls to Tcl procs
+ 2 trace invocations of all commands including procs
+ 3 detailed trace showing the result of each instruction
+traceExec >= 2 provides a one line summary of each called command and
+its arguments. Commands that have been "compiled away" such as set are
+not shown. (BL)
+
+11/30/96 (bug fix) The command "info nameofexecutable" could sometimes
+return the name of a directory. (JO)
+
+11/30/96 (feature improvements) Changed the code in library/init.tcl
+that reads in pkgIndex.tcl so that (a) it reads the files from child
+directories before those in the parent, so that the parent gets
+precedence, and (b) it doesn't quit if there is an error in a
+pkgIndex.tcl file; instead, it prints an error message on standard
+error and continues. (JO)
+
+10/5/96 (feature improvements) Partial implementation of binary string
+support: the ability for Tcl string values to contain embedded null bytes.
+Changed the Tcl object-based APIs to take a byte pointer and length pair
+instead of a null-terminated C string. Modified several object type managers
+to support binary strings but not, for example, the list type manager.
+Existing string-based C APIs are unchanged and will truncate binary
+strings. Compiled scripts containing nulls are also truncated. (BL)
+
+12/12/96 (feature change) Removed the commands "cp", "mkdir", "mv",
+"rm", and "rmdir" from the Macintosh version of Tcl. They were never
+officially supported and their functionality is now available via
+the file command. (RJ)
+
+----------------- Released 8.0a1, 12/20/96 -----------------------
+
+1/7/97 (bug fix) Under Windows, "file stat c:" was returning error instead
+of stat for current dir on c: drive.
+
+1/10/97 (new feature) Added Tcl_GetIndexFromObj procedure for quick
+lookups of keyword arguments. (JO)
+
+1/12/97 (new feature) Serial IO channel drivers for Windows and Unix,
+available by using Tcl open command to open pseudo-files like "com1:" or
+"/dev/ttya". New option to Tcl fconfigure command for serial files:
+"-mode baud,parity,data,stop" to specify baud rate, parity, data bits, and
+stop bits. Serial IO is not yet available on Mac.
+
+1/16/97 (feature change) Restored the Tcl7.x "two level substitution
+semantics" for expressions. Expressions not enclosed in braces are
+implemented, in general, by calling the expr command procedure
+(Tcl_ExprObjCmd) at runtime after the Tcl interpreter has already done a
+first round of substitutions. This is slow (about Tcl7.x speed) because new
+code for the expression is generally compiled each time. However, if the
+expression has only variable substitutions (and not command substitutions),
+"optimistic" fast code is generated inline. This inline code will fail if a
+second round of substitutions is needed (i.e., if the value of a substituted
+variable itself requires more substitutions). The optimistic code will
+catch the error and back off to call the slower but guaranteed correct
+expr command procedure. (BL)
+
+1/16/97 (feature improvements) Added Tcl_ExprLongObj and Tcl_ExprDoubleObj
+to round out expression-related procedures. (BL)
+
+1/16/97 (feature change) Under Windows, at startup the environment variables
+"path", "comspec", and "windir" in any capitalization are converted
+automatically to upper case. The PATH variable could be spelled as path,
+Path, PaTh, etc. and it makes programming rather annoying. All other
+environment variables are left alone. (CS)
+
+1/20/97 (new features) Rewrote the "lsort" command:
+ - The new version is based on reentrant merge sort code provided
+ by Richard Hipp, so it eliminates the reentrancy and stability
+ problems with the old qsort-based implementation.
+ - The new version supports a -dictionary option for sorting, and
+ it also supports a -index option for sorting lists using one
+ element for comparison.
+ - The new version is an object command, so it works well with the
+ Tcl compiler, especially in conjunction with the new -index
+ option. When the -index option is used, this version of lsort
+ is more than 100 times faster than the Tcl 7.6 lsort, which had
+ to use the -command option to get the same effect. (JO)
+
+1/20/97 (feature improvements) Added the improved debugging support for Tcl
+objects prototyped by Karl Lehenbauer <karl@hammer1.ops.NeoSoft.com>.
+If TCL_MEM_DEBUG is defined, the object creation calls use Tcl_DbCkalloc
+directly in order to record the caller's source file name and line
+number. (BL)
+
+1/21/97 (removed feature) Desupported the tcl_precision variable: if
+set, it is ignored. Tcl now uses the full 17 digits of precision when
+converting real numbers to strings (with the new object system real
+numbers are rarely converted to strings so there is no efficiency
+disadvantage to printing all 17 digits; the new scheme improves
+accuracy and simplifies several APIs). (JO)
+*** POTENTIAL INCOMPATIBILITY ***
+
+1/21/97 (feature change) Removed the "interp" argument for the
+procedures Tcl_GetStringFromObj, Tcl_StringObjAppend, and
+Tcl_StringObjAppendObj. Also removed the "interp" argument for
+the updateStringProc procedure in Tcl_ObjType structures. With
+the tcl_precision changes above, these are no longer needed. (JO)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a1, but not with Tcl 7.6 ***
+
+1/22/97 (bug fix) Fixed http.tcl so that http_reset does not result in
+an extra call to the command callback. In addition, if the transaction
+gets a premature eof, the state(status) is "eof", not "ok". (BW)
+
+----------------- Released 8.0a2, 1/24/97 -----------------------
+
+1/29/97 (feature change) Changed how two digit years are parsed in the
+clock command. The old interface just added 1900 which will seem
+broken by the year 2000. The new scheme follows the POSIX standard
+and treats dates 70-99 as 1970-1999 and dates 00-38 as 2000-2038. All
+other two digit dates are undefined. (RJ)
+*** POTENTIAL INCOMPATIBILITY ***
+
+2/4/97 (bug fix) Fixed bug in clock code that dealt with relative
+dates. Using the relative month code you could get an invalid date
+because it jumped into a non-existant day. (For example, Jan 31
+to Feb 31.) The code now will return the last valid day of the
+month in these situations. Thanks to Hume Smith for sending in
+this bug fix. (RJ)
+
+2/10/97 (feature change) Eliminated Tcl_StringObjAppend and
+Tcl_StringObjAppendObj procedures, replaced them with Tcl_AppendToObj
+and Tcl_AppendStringsToObj procedures. Added new procedure
+Tcl_SetObjLength. (JO)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2, but not with Tcl 7.6 ***
+
+2/10/97 (new feature) Added Tcl_WrongNumArgs procedure for generating
+error messages about incorrect number of arguments. (JO)
+
+2/11/97 (new feature, bug fix) http package. Added -accept to http_config
+so you can set the Accept header. Added -handler option to http_get so
+you can supply your own data handler. Also fixed POST operation to
+set the correct MIME type on the request. (BW)
+
+2/22/97 (bug fix) Fixed bug that caused $tcl_platform(osVersion) to be
+computed incorrectly under AIX. (JO)
+
+2/25/97 (new feature, feature change) Added support for both int and long
+integer objects. Added Tcl_NewLongObj/Tcl_GetLongFromObj/Tcl_SetLongFromObj
+procedures and renamed the Tcl_Obj internalRep intValue member to
+longValue. Tcl_GetIntFromObj now checks for integer values too large to
+represent as non-long integers. Changed Tcl_GetAllObjTypes to
+Tcl_AppendAllObjTypes. (BL)
+
+3/5/97 (new feature) Added new Tcl_SetListObj procedure to round out
+collection of procedures that set the type and value of existing Tcl
+objects. (BL)
+
+3/6/97 (new feature) Added -global flag for interp invokehidden. (JL)
+
+3/6/97 (new feature, feature change) Added isNativeObjectProc field to the
+Tcl_CmdInfo structure to indicate (when 1) if the command has an
+object-based command procedure. Removed the nameLength arg from
+Tcl_CreateObjCommand since command names can't contain null characters. (BL)
+
+3/6/97 (bug fix) Fixed bug in "unknown" procedure that caused auto-
+loading to fail on commands whose names begin with digits. (JO)
+
+3/7/97 (bug fix) Auto-loading now works in Safe Base. Safe interpreters
+only accept the Version 2 and onwards tclIndex files. (JL)
+
+3/13/97 (bug fix) Fixed core dump due to interaction between aliases and
+hidden commands. Bug found by Lindsay Marshall. (JL)
+
+3/14/97 (bug fix) Fixed mac bugs relating to time. The -gmt option
+now adjusts the time in the correct direction. (Thanks to Ed Hume for
+reporting a fix to this problem.) Also fixed file "mtime" etc. to
+return times from GMT rather than local time zone. (RJ)
+
+3/18/97 (feature change) Declaration of objv in Tcl_ObjCmdProc function
+changed from "Tcl_Obj *objv[]" to "Tcl_Obj *CONST objv[]". All Tcl object
+commands changed to use new declaration of objv. Naive translation of
+string-based command procs to object-based command procs could very easily
+have yielded code where the contents of the objv array were changed. This
+is not a problem with string-based command procs, but doing something as
+simple as objv[2] = objv[3] would corrupt the runtime stack and cause Tcl to
+crash. Introduced CONST in declaration of objv so that attempted assignment
+of new pointer values to elements of the objv array will be caught by the
+compiler. (CCS)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 ***
+
+3/19/97 (bug fix) Fixed panic due to object sharing. The root cause was
+that old code was using Tcl_ResetResult instead of Tcl_ResetObjResult. (JL)
+
+3/20/97 (new feature) Added a new subcommand for the file
+command. file attributes filename can give a list of platform-specific
+options (such as file/creator type on the Mac, permissions on Unix) or
+set the values of them. Added a new subcommand for the file
+command. file nativename name gives back the platform-specific form
+for the file. This is useful when the filename is needed to pass to
+the OS, such as exec under Windows 95 or AppleScript on the Mac. For
+more info, see file.n. (SRP)
+
+3/24/97 (removed feature) Removed the tcl_safePolicyPath procedure. Now
+the policy path is computed from the auto_path by appending the directory
+'policies' to each element. Also fixed several bugs in automatic tracking
+of auto_path by computed policy path. (JL)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 but not with Tcl 7.6 ***
+
+4/8/97 (new feature) If the variable whose name is passed to lappend doesn't
+already exist, and there are no value arguments, lappend now creates the
+variable with an empty value instead of returning an error. Change suggested
+by Tom Tromey. (BL)
+
+4/9/97 (feature change) Changed the name of the TCL_PART1_NOT_PARSED flag to
+TCL_PARSE_PART1. (BL)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 but not with Tcl 7.6 ***
+
+4/10/97 (bug fixes) Fixed various compilation-related bugs:
+ - "UpdateStringOfCmdName should never be invoked" panic.
+ - Bad code generated for expressions not in {}'s inside catch commands.
+ - Segmentation fault in some command procedures when two argument
+ object pointers refer to the same object.
+ - Second level of substitutions were never done for expressions not
+ in {}'s that consist of a single variable reference: e.g.,
+ "set x 27; set bool {$x}; if $bool {puts foo}" would fail with error.
+ - Bad code generated when code storage was grown while compiling some
+ expressions: ones with compilation errors or consisting of only a
+ variable reference.
+ - Bugs involving multiple interpreters: wasn't checking that a
+ procedure's code was compiled for the same interpreter as the one
+ executing it, and didn't invalidate code on hidden-exposed command
+ transitions.
+ - "Bad stack top" panic when executing scripts that require a huge
+ amount of stack space.
+ - Incorrect sharing of code for procedure bodies, and procedure code
+ deallocated before last execution of the procedure finished.
+ - Fixed compilation of expression words in quotes. For example,
+ if "0 < 3" {puts foo}.
+ - Fixed performance bug in array set command with large assignments.
+ - Tcl_SetObjLength segmentation fault setting length of empty object.
+ - If Tcl_SetObjectResult was passed the same object as the interpreter's
+ result object, it freed the object instead of doing nothing. Bug fix
+ by Michael J. McLennan.
+ - Tcl_ListObjAppendList inserted elements from the wrong list. Bug fix
+ by Michael J. McLennan.
+ - Segmentation fault if empty variable list was specified in a foreach
+ command. Bug fix by Jan Nijtmans.
+ - NULL command name was always passed to Tcl_CreateTrace callback
+ procedure.
+ - Wrong string representation generated for the value LONG_MIN.
+ For example, expr 1<<31 printed incorrectly on a 32 bit machine.
+ - "set {a($x)} 1" stored value in wrong variable.
+ - Tcl_GetBooleanFromObj was not checking for garbage after a numeric
+ value.
+ - Garbled "bad operand type" error message when evaluating expressions
+ not surrounded by {}'s. (BL)
+
+4/16/97 (new feature) The expr command now has the "rand()" and
+"srand()" functions for getting random numbers in expr. (RJ)
+
+4/23/97 (bug fix) Fixed core dump in bgerror when the error handler command
+deletes the current interpreter. Found by Juergen Schoenwald. (JL)
+
+4/23/97 (feature change) The notifier interfaces have been redesigned
+to make embedding in applications with external event loops possible.
+A number of interfaces in the notifier and the channel drivers have
+changed. Refer to the Notifier.3 and CrtChannel.3 manual entries for
+more details. (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+4/23/97 (removed feature) The Tcl_File interfaces have been removed.
+The Tcl_CreateFileHandler/Tcl_DeleteFileHandler interfaces now take
+Unix fd's and are only supported on the Unix platform.
+Tcl_GetChannelFile has been replaced with Tcl_GetChannelHandle.
+Tcl_MakeFileChannel now takes a platform specific file handle. (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+4/23/97 (removed feature) The modal timeout interface has been
+removed (Tcl_CreateModalTimeout/Tcl_DeleteModalTimeout) (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+4/23/97 (feature change) Channel drivers are now required to correctly
+implement blocking behavior when they are in blocking mode. (SS)
+*** POTENTIAL INCOMPATIBILITY ***
+
+4/23/97 (new feature) Added the "binary" command for manipulating
+binary strings. Also, changed the "puts", "gets", and "read" commands
+to preserve embedded nulls. (SS)
+
+4/23/97 (new feature) Added tcl_platform(byteOrder) element to the
+tcl_platform array to identify the native byte order for the current
+host. (SS)
+
+4/23/97 (bug fix) Fixed bug in date parsing around year boundaries. (SS)
+
+4/24/97 (bug fix) In the process of copying a file owned by another user,
+Tcl was changing the owner of the copy back to the owner of the original
+file, therefore causing further file operations to fail because the current
+user didn't own the copy anymore. The owner of the copy is now left as the
+current user. (CCS)
+
+4/24/97 (feature change) Under Windows, don't automatically uppercase the
+environment variable "windir" -- it's supposed to be lower case. (CCS)
+
+4/29/97 (new feature) Added namespace support based on a namespace
+implementation by Michael J. McLennan of Lucent Technologies. A namespace
+encapsulates a collection of commands and variables to ensure that they
+won't interfere the commands and variables of other namespaces. The global
+namespace holds all global variables and commands. Additional namespaces are
+created with the new namespace command. The new variable command lets you
+create Tcl variables inside a namespace. The names of Tcl variables and
+commands may now be qualified by the name of the namespace containing them.
+The key namespace-related commands are summarized below:
+ - namespace ?eval? name arg ?arg...?
+ Used to define the commands and variables in a namespace.
+ Optionally creates the namespace.
+ - namespace export ?-clear? ?pattern pattern...?
+ Specifies which commands are exported from a namespace. These
+ are the ones that can be imported into another namespace.
+ - namespace import ?-force? ?pattern pattern...?
+ Makes the specified commands accessible in the current namespace.
+ - namespace current
+ Returns the name of the current namespace.
+ - variable name ?value? ?name ?value?...?
+ Creates one or more namespace variables. (BTL)
+
+5/1/97 (bug fix) Under Windows, file times were reported in GMT. Should be
+reported in local time. (CCS)
+
+5/2/97 (feature change) Changed the name of the two Tcl variables used for
+tracing bytecode compilation and execution to tcl_traceCompile and
+tcl_traceExec respectively. These variables are now documented in the
+tclvars man page. (BL)
+
+5/5/97 (new feature) Support "end" as the index for "lsort -index". (BW)
+
+5/5/97 (bug fixes) Cleaned up the way the http package resets connections (BW)
+
+5/8/97 (feature change) Newly created Tcl objects now have a reference count
+of zero instead of one. This simplifies C code that stores newly created
+objects in Tcl variables or in data structures such as list objects. That C
+code must increment the new object's reference count since the variable or
+data structure will contain a long-term reference to the object. Formerly,
+when new objects started out with reference count one, it was necessary to
+decrement the new object's reference count after the store to make sure it
+was left with the correct value; this is no longer necessary. (BL)
+
+5/9/97 (new feature) Added the Tcl_GetsObj interface that takes an
+object reference instead of a dynamic string (as in Tcl_Gets). (SS)
+
+5/12/97 (new feature) Added Tcl_CreateAliasObj and Tcl_GetAliasObj C APIs
+to allow an alias command to be created with a vector of Tcl_Obj structures
+and to get the vector back later. (JL)
+
+5/12/97 (feature change) Changed Tcl_ExposeCommand and Tcl_HideCommand to
+leave an object result instead of a string result. (JL)
+
+5/14/97 (feature change) Improved the handling of the interpreter result.
+This is still either an object or a string, but the two values are now kept
+consistent unless some C code reads or writes interp->result directly. See
+the SetResult man page for details. Removed the Tcl_ResetObjResult
+procedure. (BL)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 ***
+
+5/16/97 (new feature) Added "fcopy" command to move data between
+channels. Refer to the manual page for more information. Removed the
+"unsupported0" command since it is obsolete now. (SS)
+
+5/16/97 (new feature) Added Tcl_GetStringResult procedure to allow programs
+to get an interpreter's result as a string. If the result was previously set
+to an object, this procedure will convert the object to a string. Use of
+Tcl_GetStringResult is intended to replace direct access to interp->result,
+which is not safe. (BL)
+
+5/20/97 (new features) Fixed "fcopy" to return the number of bytes
+transferred in the blocking case. Updated the http package to use
+fcopy instead of unsupported0. Added -timeout and -handler options to
+http_get. http_get is now blocking by default. It is only non-blocking
+if you supply a -command argument. (BW)
+
+5/22/97 (bug fix) Fixed several bugs in the "lsort" command having to do
+with the -dictionary option and the presence of numbers embedded in the
+strings. (JO)
+
+----------------- Released 8.0b1, 5/27/97 -----------------------
+
+6/2/97 (bug fix) Fixed bug in startup code that caused a problem in
+finding the library files when they are installed in a directory
+containing a space in the name. (SS)
+
+6/2/97 (bug fix) Fixed bug in Unix notifier where the select mask was
+not being cleared under some circumstances. (SS)
+
+6/4/97 (bug fix) Fixed bug that prevented creation of Tk widgets in
+namespaces. Tcl_CreateObjCommand and Tcl_CreateCommand now always create
+commands in the global namespace unless the command names are qualified. Tcl
+procedures continue to be created in the current namespace by default. (BL)
+
+6/6/97 (new features) Added new namespace API procedures
+Tcl_AppendExportList and Tcl_Export to allow C code to get and set a
+namespace's export list. (BL)
+
+6/11/97 (new feature) Added Tcl_ConcatObj. This object-based routine
+parallels the string-based routine Tcl_Concat. (SRP)
+
+6/11/97 (new feature) Added Tcl_SetObjErrorCode. This object-based
+routines parallels the string-based routine Tcl_SetErrorCode. (SRP)
+
+6/12/97 (bug fix) Fix the "unknown" procedure so that wish under Windows
+will exec an external program, instead of always complaining "console1 not
+opened for writing". (CCS)
+
+6/12/97 (bug fix) Fixed core dump experienced by the following simple
+script:
+ interp create x
+ x alias exec exec
+ interp delete x
+This panic was caused by not installing the new CmdDeleteProc when exec
+got redefined by the alias creation step. Reported by Lindsay Marshal (JL)
+
+6/13/97 (new features) Tcl objects newly created by Tcl_NewObj now have a
+string representation that points to a shared heap string of length 1. (They
+used to have NULL bytes and typePtr fields. This was treated as a special
+case to indicate an empty string, but made type manager implementations
+complex and error prone.) The new procedure Tcl_InvalidateStringRep is used
+to mark an object's string representation invalid and to free any storage
+associated with the old string representation. (BL)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl7.6 ***
+
+6/16/97 (bug fix) Tcl_ScanCountedElement could leave braces unmatched
+if the string ended with a backslash. (JO)
+
+6/17/97 (bug fix) Fixed channel event bug where readable events would be
+lost during recursive events loops if the input buffers contained
+data. (SS)
+
+6/17/97 (bug fix) Fixed bug in Windows socket code that didn't
+reenable read events in the case where an external entity is also
+reading from the socket. (SS)
+
+6/18/97 (bug fix) Changed initial setting of the notifier service mode
+to TCL_SERVICE_NONE to avoid unexpected event handling during
+initialization. (SS)
+
+6/19/97 (bug fix/feature change) The command callback to fcopy is now
+called in case of errors during the background copy. This adds a second,
+optional argument to the callback that is the error string. The callback
+in case of errors is required for proper cleanup by the user of fcopy. (BW)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
+
+6/19/97 (bug fix) Fixed a panic due to the following four line script:
+ interp create x
+ x alias foo bar
+ x eval rename foo blotz
+ x alias foo {}
+The problem was that the interp code was not using the actual current name
+of the command to be deleted as a result of un-aliasing foo. (JL)
+
+6/19/97 (feature change) Pass interp down to the ChannelOption and
+driver specific calls so system errors can be differentiated from syntax
+ones. Changed Tcl_DriverGetOptionProc type. Affects Tcl_GetChannelOption,
+TcpGetOptionProc, TtyGetOptionProc, etc. (DL)
+*** POTENTIAL INCOMPATIBILITY ***
+
+6/19/97 (new feature) Added Tcl_BadChannelOption for use by by driver
+specific option procedures (Set and Get) to return a complete and
+meaningful error message. (DL)
+
+6/19/97 (bug fixes) If a system call error occurs while doing an
+fconfigure on tcp or tty/com channel: return the appropriate error
+message (instead of the syntax error one or none). (Fixed for Unix and
+most of the Win and Mac drivers). (DL)
+
+6/20/97 (feature change) Eval is no longer assumed as the subcommand name
+in namespace commands: you must now write "namespace eval nsName {...}".
+Abbreviations of namespace subcommand names are now allowed. (BL)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl7.6 ***
+
+6/20/97 (feature change) Changed the errorInfo traceback message for
+compilation errors from "invoked from within" to "while compiling". (BL)
+
+6/20/97 (bug fixes) Fixed various compilation-related bugs:
+ - "UpdateStringOfCmdName should never be called" and
+ "UpdateStringOfByteCode should never be called" panics.
+ - Segfault in TclObjInterpProc getting procedure name after evaluation
+ stack is reallocated (grown).
+ - Could not use ":" at end of variable and command names.
+ - Bad code generated for while and for commands with test expressions
+ enclosed in quotes: e.g., "set i 0; while "$i > 5" {}".
+ - Command trace procedures would crash if they did a Tcl_EvalObj that
+ reallocated the evaluation stack.
+ - Break and continue commands did not reset the interpreter result.
+ - The Tcl_ExprXXX routines, both string- or object-based, always
+ modified the interpreter result even if there was no error.
+ - The argument parsing procedure used by several compile procedures
+ always treated "]" as end of a command: e.g., "set a ]" would fail.
+ - Changed errorInfo traceback message for compilation errors from
+ "invoked from within" to "while compiling".
+ - Problem initializing Tcl object managers during interpreter creation.
+ - Added check and error message if formal parameter to a procedure is
+ an array element. (BL)
+
+6/23/97 (new feature) Added "registry" package to allow manipulation
+of the Windows system registry. See manual entry for details. (SS)
+
+6/24/97 (feature change) Converted http to a package and added the
+http1.0 subdirectory of the Tcl script library. This means you have
+to do a "package require http" to use this, as advertised in the man page. (BW)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
+
+6/24/97 (bug fix) Ensure that Tcl_Set/GetVar C APIs, when called without
+TCL_LEAVE_ERR_MSG, don't touch the interp result. (DL)
+
+6/26/97 (feature change) Changed name of Tcl_ExprStringObj to
+Tcl_ExprObj. (BL)
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
+
+----------------- Released 8.0b2, 6/30/97 -----------------------
+
+7/1/97 (new feature) TCL_BUILD_SHARED flag set in tclConfig.sh
+when Tcl has been built with --enable-shared. A new tclLibObjs
+make target, echoing the list of the .o's needed to build a tcl
+library, is now provided. (DL)
+
+7/1/97 (feature change) compat/getcwd.c removed and changed the
+only place where getcwd is used so a new USEGETWD flag selects
+the use of the replacement "getwd". Adding this flag is recommended
+for SunOS 4 (because getcwd on SunOS 4 uses a pipe to pwd(1)!). (DL)
+
+7/7/97 (feature change) The split command now supports binary data (i.e.,
+null characters in strings). (BL)
+
+7/7/97 (bug fix) string first returned the wrong result if the first
+argument string was empty. (BL)
+
+7/8/97 (bug fix) Fixed core dump in fcopy that could occur when a command
+callback was supplied and an error or eof condition caused no background
+activity. A refcount bug triggered a panic in Tcl_ListObjAppendElement. (BW)
+
+7/8/97 (bug fix) Relaxed the pattern matching on http_get so you do not
+need a trailing path component. You can now get away with just
+http_get www.scriptics.com (BW)
+
+7/9/97 (bug fix) Creating anonymous interpreters no longer smashes existing
+commands with names similar to the generated name. Previously creating an
+anonymous interpreter could smash an existing command, now it skips until
+it finds a command name that isn't being used. (JL)
+
+7/9/97 (feature change) Removed the policy management mechanism from the
+Safe Base; left the aliases to source and load modules, and to do a limited
+form of the "file" command. See entry of 11/15/96. (JL)
+
+7/9/97 (bug fixes) Fixed various compilation-related bugs:
+ - Line numbers in errorInfo now are the same as those in Tcl7.6 unless
+there are compilation errors. Compilation error messages now include the
+entire command in error.
+ - Trailing ::s after namespace names weren't being ignored.
+ - Could not refer to an namespace variable with an empty name using a
+name of the form "n::". (BL)
+
+7/9/97 (bug fix) Fixed bug in Tcl_Export that prevented you from exporting
+from other than the current namespace. (BL)
+
+7/9/97 (bug fix) env.test was removing env var needed for proper finding
+of libraries in child process. (DL)
+
+7/10/97 (bug fixes/new feature) Cleanup in Tcl_MakeSafe. Less information
+is leaked to safe interps. Error message fixes for interp sub commands.
+Likewise changes in safealias.tcl; tcl_safeCreateInterp can now be called
+without argument to generate the slave name (like in interp create). (DL)
+
+7/10/97 (bug fixes) Bytecode compiler now generates more detailed
+command location information: subcommands as well as commands now have
+location information. This means command trace procedures now get the
+correct source string for each command in their command parameter. (BL)
+
+7/22/97 (bug fixes) Performance improvement in Safe interpreters
+handling. Added new mask value to (tclInt.h) Interp.flags record. (DL)
+
+7/22/97 (bug fix) Fixed panic in 'interp target {} foo'. This bug
+was present since Tcl 7.6. (JL)
+
+7/22/97 (bug fix) Fixed bug in compilation of procedures in namespaces: the
+procedure's namespace must be used to look up compile procedures, not the
+current namespace. (BL)
+
+7/22/97 (bug fix) Use of the -channel option of http_get was not setting
+the end of line translations mode on the channel, so copying binary data
+with the -channel option was corrupting the result on non-unix platforms. (BW)
+
+7/22/97 (bug fixes) file commands and ~user (seg fault and other
+improper returns). (DL)
+
+7/23/97 (feature change) Reenabled "vwait" in Safe Base. (JL)
+
+7/23/97 (bug fixes) Fixed two bugs involving read traces on array variables
+in procedures: trace procedures were sometimes not called, and reading
+nonexistant array elements didn't create undefined element variables that
+could later be defined by trace procedures. (BL)
+
+7/24/97 (bug fix) Windows memory allocation performance was
+superlinear in some cases. Made the Mac allocator generic and changed
+both the Mac and Windows platforms to use the new allocator instead of
+malloc and free. (SS)
+
+7/24/97 - 8/12/97 (bug fixes/change of features) Completely revamped safe
+sourcing/loading (see safe.n) to hide pathnames, use virtual
+paths tokens instead, improved security in several respects and made it
+more tunable. Multi level interp loading can work too now. Package auto
+loading now works in safe interps as long as the package directory is in
+the auto_path (no deep crawling allowed in safe interps). (DL)
+*** POTENTIAL INCOMPATIBILITY with previous alpha and beta releases ***
+
+7/24/97 (bug fixes) Made Tcl_SetVar* and Tcl_NewString* treat a NULL value
+as an empty string. (This fixes hairy crash case where you would crash
+because load command for other interps assumed presence of
+errorInfo...). (DL)
+
+7/28/97 (bug fix) Fixed pkg_mkIndex to understand namespaces. It will
+use the export list of a namespace and create auto_index entries for
+all export commands. Those names are in their fully qualified form in the
+auto_index. Therefore, I tweaked unknown to try both $cmd and ::$cmd.
+Also fixed pkg_mkIndex so you can have "package require" commands inside
+your packages. These commands are ignored, which is mostly ok except
+when you must load another package before loading yours because of
+linking dependencies. (BW)
+
+7/28/97 (bug fix) A variable created by the variable command now persists
+until the namespace is destroyed or the variable is unset. This is true even
+if the variable has not been initialized; these variables used to be
+destroyed if an error occurred when accessing them. In addition, the "info
+vars" command lists uninitialized namespace variables, while the "info
+exists" command returns 0 for them. (BL)
+
+7/29/97 (feature change) Changed the http package to use the ::http
+namespace. http_get renamed to http::geturl, http_config renamed to
+http::config, http_formatQuery renamed to http::formatQuery.
+It now provides the 2.0 version of the package.
+The 1.0 version is still available with the old names.
+*** POTENTIAL INCOMPATIBILITY with Tcl 8.0b2 but not with Tcl 7.6 ***
+
+7/29/97 (bug fix, new feature) Tcl_Main now uses Tcl objects internally to
+preserve NULLs in commands and command output. Added new API procedure
+Tcl_RecordAndEvalObj that resembles Tcl_RecordAndEval but takes an object
+containing a command. (BL)
+
+7/30/97 (bug fix) Tcl freed strings in the environ array even if it
+did not allocate them. (SS)
+
+7/30/97 (bug fix) If a procedure is renamed into a different namespace, it
+now executes in the context of that namespace. (BL)
+
+7/30/97 (bug fix) Prevent renaming of commands into and from namespaces as
+part of hiding them. (JL)
+
+7/31/97 (feature change) Moved the history command from C to tcl.
+This uses the ::history namespace. The "words" and "substitute" options
+are no longer supported. In addition, the "keep" option without a value
+returns the current keep limit. There is a new "clear" option.
+The unknown command now supports !! again. (BW)
+*** POTENTIAL INCOMPATIBILTY ***
+
+7/30/97 (bug fix) Made sure that a slave can not fool the master into
+hiding the wrong command. Made sure we don't crash in hiding + namespaces
+issues. (DL)
+
+8/4/97 (bug fix) Concat, eval, uplevel, and similar commands were
+incorrectly trimming trailing space characters from their arguments
+even when the space characters were preceded by a backslash. (JO)
+
+8/4/97 (bug fix) Removed the hard link between bgerror and tkerror.
+Only bgerror is supported in tcl core. Tk will still look for a
+tkerror but using regular tcl code for that feature. (DL)
+*** POTENTIAL INCOMPATIBILTY with code relying on the hard link ***
+
+8/6/97 (bug fix) Reduced size required for compiled bytecodes by using a
+more compact encoding for the command pc-to-source map. (BL)
+
+8/6/97 (new feature) Added support for additional compilation and execution
+statistics when Tcl is compiled with the TCL_COMPILE_STATS flag. (BL)
+
+8/7/97 (bug fix) Expressions not in {}s that have a comparison operator as
+the topmost operator must be compiled out-of-line (call the expr cmd at
+runtime) to properly support expr's two-level substitution semantics. An
+example is "set a 2; set b {$a}; puts [expr $b == 2]". (BL)
+
+8/11/97 (bug fix) The catch command would sometimes crash if a variable name
+was given and the bytecode evaluation stack was grown when executing the
+argument script. (BL)
+
+8/12/97 (feature change) Reinstated the variable tcl_precision to control
+the number of digits used when floating-point values are converted to
+strings, with default of 12 digits. However, had to make tcl_precision
+shared among all interpreters (except that safe interpreters can't
+modify it). This makes the Tcl 8.0 behavior almost identical to 7.6
+except that the default precision is 12 instead of 6. (JO)
+*** POTENTIAL INCOMPATIBILITY ***
+
+----------------- Released 8.0, 8/18/97 -----------------------
+
+8/19/97 (bug fix) Minimal fix for glob -nocomplain bugs:
+"glob -nocomplain unreadableDir/*" was generating an anonymous
+error. More in depth fixes will come with 8.1. (DL).
+
+8/20/97 (bug fix) Removed check for FLT_MIN in binary command so
+underflow conditions are handled by the compiler automatic
+conversions. (SS)
+
+8/20/97 (bug fixes) Fixed several compilation-related bugs:
+ - Array cmd wasn't detecting arrays that, while compiled, do not yet
+ exist (e.g., are marked undefined since they haven't been assigned
+ to yet).
+ - The GetToken procedure in tclCompExpr.c wasn't recognizing properly
+ whether an integer token was invalid. For example, "0x$" is not
+ a valid integer.
+ - Performance bug in TclExecuteByteCode: the size of its stack frame
+ was reduced by over 20% by moving errorInfo code elsewhere.
+ - Uninitialized memory read error in tclCompile.c. (BL)
+
+8/21/97 (bug fix) safe::interpConfigure now behave like Tk widget's
+configure : it changes only the options you provide and you can get
+the current value of any single option. New ?-nested boolean? and
+?-statics boolean? for all safe::interp* commands but we still
+accept (upward compatibility) the previously defined non valued
+flags ?-noStatics? and ?-nestedLoadOk?. Improved the documentation. (DL).
+
+8/22/97 (bug fix) Updated PrintDbl.3 to reflect the fact that the
+tcl_precision variable is still used and that it is now shared by all
+interpreters. (BL)
+
+8/25/97 (bug fix) Fixed array access bug in IllegalExprOperandType
+procedure in tclExecute.c: it was not properly supporting the || and &&
+operators. (BL)
+
+8/27/97 (bug fix) In cases where a channel handler was created with an
+empty event mask while data was still buffered in the channel, the
+channel code would get stuck spinning on a timer that would starve
+idle handlers. This mostly happened in Tk when reading from stdin. (SS)
+
+9/4/97 (bug fix) Slave interps now inherit the maximum recursion limit
+of their parent instead of starting back at the default. {nb: this still
+does not prevent stack overflow by multi-interps recursion or aliasing} (DL)
+
+9/11/97 (bug fix) An uninitialized variable in Tcl_WaitPid caused
+pipes to fail to report eof properly under Windows. (SS)
+
+9/12/97 (bug fix) "exec" was misidentifying some DOS executables as not
+executable. (CCS)
+
+9/14/97 (bug fix) Was using the wrong structure in sizeof operation in
+tclUnixChan.c. (JL)
+
+9/15/97 (bug fix) Fixed notifier to break out of do-one-event loop if
+Tcl_WaitForEvent returns 1, so that callers of Tcl_DoOneEvent will get
+a chance to check whether the event just handled is significant. This
+affected mainly recursive calls to Tcl_VWaitCmd; these did not get a
+chance to notice that the variable they were waiting for has been set
+and thus they didn't terminate the vwait. (JL, DL, SS)
+
+9/15/97 (bug fix) Alignment problems in "binary format" would cause a
+crash on some platforms when formatting floating point numbers. (SS)
+
+9/15/97 (bug fix) Fixed bug in Macintosh socket code. Now passes all
+tests in socket.test that are not platform specific. (Thanks to Mark
+Roseman for the pointer on the fix.) (RJ)
+
+9/18/97 (bug fix) Fixed bug -dictionary option of lsort that could
+cause the compare function to run off the end of an array if the
+number only contained 0's. (Thanks to Greg Couch for the report.) (RJ)
+
+9/18/97 (bug fix) TclFinalizeEnvironment was not cleaning up
+properly. (DL, JI)
+
+9/18/97 (bug fix) Fixed long-standing bug where an "array get" command
+did not trigger traces on the array or its elements. (BL)
+
+9/18/97 (bug fixes) Fixed compilation-related bugs:
+ - Fixed errorInfo traceback information for toplevel coomands that
+ contain nested commands.
+ - In the expr command, && and || now accept boolean operands as well
+ as numeric ones. (BL)
+
+9/22/97 (bug fix) Fixed bug that prevented translation modes from being
+set independently for input and output on sockets if input was "auto". (JL)
+
+9/24/97 (bug fix) Tcl_EvalFile(3) and thus source(n) now works fine on
+files containing NUL chars. (DL)
+
+9/26/97 (bug fix) Fixed use of uninitialized memory in the environ array
+that later could cause random core dumps. Applies to all platforms. (JL)
+
+9/26/97 (bug fix) Fixed use of uninitialized memory in socket address data
+structure under some circumstances. This could cause random core dumps.
+This applies only to Unix. (JL)
+
+9/26/97 (bug fix) Opening files on PC-NFS volumes would cause a hang
+until the system timed after the file was closed. (SS)
+
+10/6/97 (bug fix) The join(n) command, though objectified, was loosing
+NULs in the joinString and in list elements after the 2nd one.
+Now you can "join $list \0" for instance. (DL)
+
+10/9/97 (bug fix) Under windows, if env(TMP) or env(TEMP) referred to a
+non-existent directory, exec would fail when trying to create its temporary
+files. (CCS)
+
+10/9/97 (bug fix) Under mac and windows, "info hostname" would crash if
+sockets were installed but the hostname could not be determined anyhow.
+Tcl_GetHostName() was returning NULL when it should have been returning
+an empty string. (CCS)
+
+10/10/97 (bug fix) "file attribute /" returned error on windows. (CCS)
+
+10/10/97 (bug fix) Fixed the auto_load procedure to handle procedures
+defined in namespaces better. Also fixed pgk_mkIndex so it sees procedures
+defined in nested namespaces. Index entries are still only made for
+exported procedures. (BW)
+
+10/13/97 (bug fix) On unix, for files with unknown group or owner
+attributes, querying the "file attributes" would return an error rather than
+returning the group's or owner's id number, although tha command accepts
+numbers when setting the file's group or owner. (CCS)
+
+10/22/97 (bug fix) "fcopy" did not eval the callback script at the
+global scope. (SS)
+
+10/22/97 (bug fix) Fixed the signature of the CopyDone callback used in
+the http package(s) so they can handle error cases properly. (BW)
+
+10/28/97 (bug fixes) Fixed a problem where lappend would free the Tcl object
+in a variable if a Tcl_ObjSetVar2 failed because of an error calling a trace
+on the variable. (BL)
+
+10/28/97 (bug fix) Changed binary scan to properly handle sign
+extension of integers on 64-bit or larger machines. (SS)
+
+11/3/97 (bug fixes) Fixed several bugs:
+ - expressions such as "expr ($x)" must be compiled out-of-line
+ (call the expr command procedure at runtime) to ensure the correct
+ behavior when "$x" is an expression such as "5+10".
+ - "array set a {}" now creates a new array var with an empty array
+ value if the var didn't already exist.
+ - "lreplace $foo end end" no longer returns an error (just an empty
+ list) if foo is empty.
+ - upvar will no longer create a variable in a namespace that refers
+ to a variable in a procedure.
+ - deleting a command trace within a command trace callback would
+ make the code that calls traces to reference freed memory.
+ - significantly sped up "string first" and "string last" (fix from
+ darrel@gemstone.com).
+ - seg fault in Tcl_NewStringObj() when a NULL is passed as the byte
+ pointer argument and Tcl is compiled with -DTCL_MEM_DEBUG.
+ - documentation and error msg fixes. (BL)
+
+11/3/97 (bug fix) Fixed a number of I/O bugs related to word sizes on
+64-bit machines. (SS)
+
+11/6/97 (bug fix) The exit code of the first process created by Tcl
+on Windows was not properly reported due to an initialization
+problem. (SS)
+
+----------------- Released 8.0p1, 11/7/97 -----------------------
+
+11/19/97 (bug fix) Fixed bug in linsert where it sometimes accidently
+cleared out a shared argument list object. (BL).
+
+11/19/97 (bug fix) Autoloading in namespaces was not working properly.
+auto_mkindex is still not really namespace aware but most common
+cases should now be handled properly (see init.test). (BW, DL)
+
+11/20/97 (enhancement) Made the changes required by the new Apple
+Universal Headers V.3.0, so that Tcl will compile with CW Pro 2.
+
+11/24/97 (bug fix) Fixed tests in clock test suite that needed the
+-gmt flag set. Thanks to Jan Nijtmans for reporting the problem. (RJ)
+
+----------------- Released 8.0p2, 11/25/97 -----------------------
+
+12/3/97 (bug fix/optimization) Removed uneeded and potentially dangerous
+instances of double evaluations if "if" and "expr" statements from
+the library files. It is recommended that unless you need a double
+evaluation you always use "expr {...}" instead of "expr ..." and
+"if {...} ..." instead of "if ... ...". It will also be faster
+thanks to the byte compiler. (DL)
+
+---- Shipped as part of the plugin2.0b5 as 8.0p2Plugin1, Dec 8th 97 ----
+
+12/8/97 (bug fix) Need to protect the newly accepted channel in an
+accept callback on a socket, otherwise the callback may close it and
+cause an error, which would cause the C code to attempt to close the
+now deleted channel. Bumping the refcount assures that the channel sticks
+around to be really closed in this case. (JL)
+
+12/8/97 (bug fix) Need to protect the channel in a fileevent so that it
+is not deleted before the fileevent handler returns. (CS, JL)
+
+12/18/97 (bug fix) In the opt argument parsing package: if the description
+had only flags, the "too many arguments" case was not detected. The default
+value was not used for the special "args" ending argument. (DL)
+
+1/15/98 (improvement) Moved common part of initScript in common file.
+Moved windows specific initialization to init.tcl so you can initialize
+Tcl in windows without having to call Tcl_Init which is now only
+searching for init.tcl {back ported from 8.1}. (DL)
+
+---- Shipped as part of the plugin as 8.0p2Plugin2, Jan 15th 98 ----
+
+5/27/98 (bug fix) Windows socket driver did not notice new data arriving
+on nonblocking sockets until the event loop was entered. (SS)
+
+5/27/98 (bug fix) Windows socket driver used FIONREAD, which is not
+supported correctly by WinSock. (SS)
+
+6/9/98 (bug fix) Generic channel code failed to report readable file
+events on buffered data that was left behind by a gets or read that
+did not consume all available data. (SS)
+
+6/18/98 (bug fix) Compilation of loop expressions was too aggressive
+and incorrectly inlined non-literal expressions. (SS)
+
+6/18/98 (bug fix) "info var" and "info locals" incorrectly reported
+the existence of compiler temporary variables. (SS)
+
+6/18/98 (bug fix) Dictionary sorting used signed character
+comparisons. (SS)
+
+6/18/98 (bug fix) Compile procs corrupted the exception stack in some
+cases. (SS)
+
+6/18/98 (bug fix) Array set had erratic behavior when initializing a
+variable from an empty value list. (SS)
+
+6/18/98 (bug fix) The Windows registry package had a bad bounds check
+that could lead to a crash. (SS)
+
+6/18/98 (bug fix) The foreach compile proc did not correctly handle
+non-local variable references. (SS)
+
+6/25/98 (new features) Added name resolution hooks to support [incr Tcl].
+There are new internal Tcl_*Resolver* APIs to add, query and remove the hooks.
+With this changes it should be possible to dynamically load [incr Tcl]
+as an extension. (MM)
+
+7/1/97 (bug fix) The commands "info args, body, default, procs" did
+not correctly handle imported procedures. (RJ)
+
+7/6/98 (improvement) pkg_mkIndex now implements the "package require"
+command. This makes it possible to create index files for packages
+that require another package and then execute code from that package in
+their file. Previously, this would throw an error because the required
+package had not been loaded. The -nopkgrequied flag is provided to
+revert back to the old functionality. (EMS)
+
+7/6/98 (improvement) back-ported the -direct flag from 8.1 into
+pkg_mkIndex. This results in pkgIndex.tcl files that contain direct
+source or load commands instead of tclPkgSetup commands. (EMS)
+
+7/6/98 (improvement) made changes to the AuxData items structures to support
+storage of compiled scripts on disk. Also some related minor changes in
+the compilation and execution engine. (EMS)
+
+6/4/98 (enhancement) Added new internal routines to support inserting
+and deleting from the stat, access, and open-file-channel mechanisms.
+TclAccessInsertProc, TclStatInsertProc, & TclOpenFileChannelInsertProc
+insert pointers to such routines; TclAccessDeleteProc, TclStatDeleteProc,
+& TclOpenFileChannelDeleteProc delete pointers to such routines. See
+the file generic/tclIOUtils.c for more details. (SKS)
+
+7/1/98 (enhancement) Added a new internal C variable
+tclPreInitScript. This is a pointer to a string that may hold an
+initialization script; If this pointer is non-NULL it is evaluated in
+Tcl_Init() prior to the built-in initialization script defined in the
+file generic/tclInitScript.h. (SKS)
+
+7/6/98 (bug fix) Removed dead code in PlatformInitExitHandler so that
+the TCL_LIBRARY value can be safely patched in binaries. (BW)
+
+7/24/98 (enhancement) Incorporated a new version of auto_mkindex that
+can support the [incr Tcl] class structures. This version will index
+all procedures in a source file, not just those where "proc" starts
+at the beginning of the line. If you want the old behavior, use the
+auto_mkindex_old procedure. (MM)
+
+7/24/98 (feature change) Changed the Windows registry key to be
+HKEY_LOCAL_MACHINE\Software\Scriptics\Tcl\8.0, and to store the path
+in the default value instead of "Root". Also, this key can be
+specified at compile time in case Tcl is being used in a different
+context where it needs an alternate library path from the standard Tcl
+installation. (SS)
+
+7/24/98 (feature change) Changed the search order for init.tcl. The
+tcl_library variable can now be set before calling Tcl_Init to avoid
+doing any searches. If it isn't set, then Tcl checks
+env(TCL_LIBRARY), the static value set at compile time, an install
+directory relative to the executable, a source directory relative to
+the executable, and a tcl directory relative to the source heirarchy
+containing the executable. See the comment at the top of
+generic/tclInitScript.h for more details. (SS)
+
+7/27/98 (config change) Changed the use of the DBGX flag in configure.in
+and the makefile to be TCL_DBGX. Users of tclConfig.sh may need to pass
+this through their configure files with AC_SUBST. (BW)
+
+729/98 (bug fix) Changed [info body] to return a copy of the body of a
+compiled procedure instead of the body itself, to avoid invalidation
+of the internal rep and loss of the byte-codes. (EMS)
+
+8/5/98 (bug fix) The platform init code could walk off the end of a
+buffer when reading the PkgPath registry value on Windows. (SS)
+
+8/5/98 (Windows makefile change) Introduced a set of macros to deal with
+exporting symbols when compiling DLLS on Windows. See win/README for
+details. (EMS)
+
+8/5/98 (addendum) Added a second Windows registry key under
+HKEY_LOCAL_MACHINE\Software\Scriptics\Tcl\8.0, named "pkgPath".
+This is a multi-string value used to initialize the tcl_pkgPath
+variable. This is required if extension DLLs are in architecture specific
+subdirectories. (SS)
+
+8/6/98 (new feature) Added tcl_findLibrary to init.tcl for use by
+extensions, including Tk. This searches in a canonical way for
+an extensions library directory and initialization file. (BW)
+
+8/10/98 (bug fix) Imported commands used to get lost if the target
+of the import was redefined. Tcl_CreateCommand and Tcl_CreateObjCommand
+were updated to restore import links. (Note that if you rename a command,
+the import links move to the new name, and if you delete a command then
+the import links get lost. These semantics have not changed.) (MC)
+
+-------- Released 8.0.3 to the Tcl Consortium CD-ROM project, 8/10/98 ------
+
+9/3/98 (bug fix) Tcl_Realloc was failing under Windows because the
+GlobalReAlloc API was not correctly re-allocating blocks that were
+32k+. The fix was to use newer Win32 APIs (HeapAlloc, HeapFree, and
+HeapReAlloc.) (BS)
+
+10/5/98 (bug fix) Fixed bug in pkg_mkIndex that caused some files that do
+a "package require" of packages in the Tcl libraries to give a warning like
+ warning: "xx.tcl" provides more than one package ({xx 2.0} {yy 0.3})
+and generate a broken pkgIndex.tcl file. (EMS)
+
+10/5/98 (bug fix) Pkg_mkIndex was not doing a case-insensitive comparison
+of extensions to determine whether to load or source a file. Thus, under
+Windows, MYDLLNAME.DLL was sourced, and mydllname.dll loaded. (EMS)
+
+10/5/98 (new feature) Created a new Tcl_Obj type, "procbody". This object's
+internal representation holds a pointer to a Proc structure. Extended
+TclCreateProc to take both strings and "procbody". (EMS)
+
+10/13/98 (bug fix) The "info complete" command can now handle strings
+with NULLs embedded. Thanks to colin@field.medicine.adelaide.edu.au
+for providing this fix. (RJ)
+
+10/13/98 (bug fix) The "lsort -dictionary" command did not properly
+handle some numbers starting with 0. Thanks to Richard Hipp
+<drh@acm.org> for submitting the fix to Scriptics. (RJ)
+
+10/13/98 (bug fix) The function Tcl_SetListObj was creating an invalid
+Tcl_Obj if the list had zero elements (despite what the comments said
+it would do). Thanks to Sebastian Wangnick for reporting the
+problem. (RJ)
+
+10/20/98 (new feature) Added tcl_platform(debug) element to the
+tcl_platform array on Windows platform. The existence of the debug
+element of the tcl_platform array indicates that the particular Tcl
+shell has been compiled with debug information. Using
+"info exists tcl_platform(debug)" a Tcl script can direct the
+interpreter to load debug versions of DLLs with the load
+command. (SKS)
+
+10/20/98 (feature change) The Makefile and configure scripts have been
+changed for IRIX to build n32 binaries instead of the old 32 abi
+format. If you have extensions built with the o32 abi's you will need
+to update them to n32 for them to work with Tcl. (RJ)
+*** POTENTIAL INCOMPATIBILITY ***
+
+10/23/98 (bug fix) tcl_findLibrary had a stray ] in one of the
+pathnames it searched for the initialization script. tclInitScript.h
+was incorrectly adding the parent of tcl_library to tcl_pkgPath. This
+logic was moved into init.tcl, and the initialization of auto_path was
+documented. Thanks to Donald Porter and Tom Silva for related
+patches. (BW)
+
+10/29/98 (bug fix) Fixed Tcl_NotifyChannel to use Tcl_Preserve instead
+of Tcl_RegisterChannel so that 1) unregistered channels do not get
+closed after their first fileevent, and 2) errors that occur during
+close in a fileevent script are actually reflected by the close
+command. (BW)
+
+10/30/98 (bug fix) Overhaul of pkg_mkIndex to deal with transitive
+package requires and packages split among scripts and binary files.
+Also fixed ommision of global for errorInfo in tcl_findLibrary. (BW)
+
+11/08/98 (bug fix) Fixed the resource command to always detect
+the case where a file is opened a second time with the same
+permissions. IM claims that this will always cause the same
+FileRef to be returned, but in MacOS 8.1+, this is no longer the case,
+so we have to test for this explicitly. (JI)
+
+11/10/98 (feature change) When compiling with Metrowerk's MSL, use the
+exit function from MSL rather than ExitToShell. This allows MSL to
+clean up its temporary files. Thanks to Vince Darley for this
+improvement. (JI)
+
+----------------- Released 8.0.4, 11/19/98 -------------------------
+
+11/20/98 (bug fix) Handle possible NULL return in TclGetStdFiles. (RJ)
+
+11/20/98 (bug fix) The dltests would not build on SGI. They reported
+that you could not mix n32 with 032 binaries. The configure script
+has been modified to get the EXTRA_CFLAGS from the tcl configure
+script. [Bug id: 840] (RJ)
+
+12/3/98 (bug fix) Windows NT creates sockets so they are inheritable
+by default. Fixed socket code so it turns off this bit right after
+creation so sockets aren't kept open by exec'ed processes. [Bug: 892]
+Thanks to Kevin Kenny for this fix. (SS)
+
+1/11/98 (bug fix) On HP, "info sharedlibextension" was returning
+empty string on static apps. It now always returns ".sl". (RJ)
+
+1/28/99 (configure change) Now support -pipe option on gcc. (RJ)
+
+2/2/99 (bug fix) Fixed initialization problem on Windows where no
+searching for init.tcl would be performed if the registry keys were
+missing. (stanton)
+
+2/2/99 (bug fix) Added support for HKEY_PERFORMANCE_DATA and
+HKEY_DYN_DATA keys in the "registry" command. (stanton)
+
+2/2/99 (bug fix) ENOTSUP and EOPNOTSUPP clashed on some Linux
+variants. (stanton)
+
+2/2/99 (enhancement) The "open" command has been changed to use the
+object interfaces. (stanton)
+
+2/2/99 (bug fix) In some cases Tcl would crash due to an overflow of
+the exception stack resulting from a missing byte code in some
+expressions. (stanton)
+
+2/2/99 (bug fix) Changed configure so Linux and IRIX shared libraries
+are linked with the system libraries. (stanton)
+
+2/2/99 (bug fix) Added support for BSDI 4.x (BSD/OS-4*) to the
+configure script. (stanton)
+
+2/2/99 (bug fix) Fixed bug where upvar could resurrect a namespace
+variable after the namespace had been deleted. (stanton)
+
+2/2/99 (bug fix) In some cases when creating variables, the
+interpreter result was being modified even if the TCL_LEAVE_ERR_MSG
+flag was set. (stanton)
+
+2/2/99 (bug fix & new feature) Changed the socket drivers to properly
+handle failures during an async socket connection. Added a new
+fconfigure option "-error" to retrieve the failure message. See the
+socket.n manual entry for details. (stanton)
+
+2/2/99 (bug fix) Deleting a renamed interp alias could result in a
+panic. (stanton)
+
+2/2/99 (feature change/bug fix) Changed the behavior of "file
+extension" so that it splits at the last period. Now the extension of
+a file like "foo..o" is ".o" instead of "..o" as in previous versions.
+*** POTENTIAL INCOMPATIBILITY ***
+
+----------------- Released 8.0.5, 3/9/99 -------------------------
+
+======== Changes for 8.0 go above this line ========
+======== Changes for 8.1 go below this line ========
+
+6/18/97 (new feature) Tcl now supports international character sets:
+ - All C APIs now accept UTF-8 strings instead of iso8859-1 strings,
+ wherever you see "char *", unless explicitly noted otherwise.
+ - All Tcl strings represented in UTF-8, which is a convenient
+ multi-byte encoding of Unicode. Variable names, procedure names,
+ and all other values in Tcl may include arbitrary Unicode characters.
+ For example, the Tcl command "string length" returns how many
+ Unicode characters are in the argument string.
+ - For Java compatibility, embedded null bytes in C strings are
+ represented as \xC080 in UTF-8 strings, but the null byte at the end
+ of a UTF-8 string remains \0. Thus Tcl strings once again do not
+ contain null bytes, except for termination bytes.
+ - For Java compatibility, "\uXXXX" is used in Tcl to enter a Unicode
+ character. "\u0000" through "\uffff" are acceptable Unicode
+ characters.
+ - "\xXX" is used to enter a small Unicode character (between 0 and 255)
+ in Tcl.
+ - Tcl automatically translates between UTF-8 and the normal encoding for
+ the platform during interactions with the system.
+ - The fconfigure command now supports a -encoding option for specifying
+ the encoding of an open file or socket. Tcl will automatically
+ translate between the specified encoding and UTF-8 during I/O.
+ See the directory library/encoding to find out what encodings are
+ supported (eventually there will be an "encoding" command that
+ makes this information more accessible).
+ - There are several new C APIs that support UTF-8 and various encodings.
+ See Utf.3 for procedures that translate between Unicode and UTF-8
+ and manipulate UTF-8 strings. See Encoding.3 for procedures that
+ create new encodings and translate between encodings. See
+ ToUpper.3 for procedures that perform case conversions on UTF-8
+ strings.
+
+9/18/97 (enhancement) Literal objects are now shared by the ByteCode
+structures created when compiled different scripts. This saves up to 45%
+of the total memory needed for all literals. (BL)
+
+9/24/97 (bug fixes) Fixed Tcl_ParseCommand parsing of backslash-newline
+sequences at start of command words. Suppressed Tcl_EvalDirect error logging
+if non-TCL_OK result wasn't an error. (BL)
+
+10/17/97 (feature enhancement) "~username" now refers to the users' home
+directory on Windows (previously always returned failure). (CCS)
+
+10/20/97 (implementation change) The Tcl parser has been completely rewritten
+to make it more modular. It can now be used to parse a script without actually
+executing it. The APIs for the new parser are not correctly exported, but
+they will eventually be exported and augmented with Tcl commands so that
+Tcl scripts can parse other Tcl scripts. (JO)
+
+10/21/97 (API change) Added "flags" argument to Tcl_EvalObj, removed
+Tcl_GlobalEvalObj procedure. Added new procedures Tcl_Eval2 and
+Tcl_EvalObjv. (JO)
+*** POTENTIAL INCOMPATIBILITY ***
+
+10/22/97 (API change) Renamed Tcl_ObjSetVar2 and Tcl_ObjGetVar2 to
+Tcl_SetObjVar2 and Tcl_GetObjVar2 (for consistency with other C APIs)
+and changed the name arguments to be strings instead of objects. (JO)
+*** POTENTIAL INCOMPATIBILITY ***
+
+10/27/97 (enhancement) Bytecode compiler rewritten to use the new Tcl
+parser. (BL)
+
+11/3/97 (New routines) Added Tcl_AppendObjToObj, which appends the
+string rep of one Tcl_Obj to another. Added Tcl_GetIndexFromObjStruct,
+which is similar to Tcl_GetIndexFromObj, except that you can give an
+offset between strings. This allows Tcl_GetIndexFromObjStruct to be
+called with a table of records which have strings in them. (SRP)
+
+12/4/97 (enhancement) New Tcl expression parser added. Added new procedure
+Tcl_ParseExpr and new token types TCL_TOKEN_SUB_EXPR and
+TCL_TOKEN_OPERATOR. Expression compiler is reimplemented to use this
+parser. (BL)
+
+12/9/97 (bug fix) Tcl_EvalObj() increments/decrements the refcount of the
+script object to prevent the object from deleting itself while in the
+middle of being evaluated. (CCS)
+
+12/9/97 (bug fix) Memory leak in Tcl_GetsObjCmd(). (CCS)
+
+12/11/97 (bug fix) Environment array leaked memory when compiled with
+Visual C++. (SS)
+
+12/11/97 (bug fix) File events and non-blocking I/O did not work on
+pipes under Windows. Changed to use threads to achieve non-blocking
+behavior. (SS)
+
+12/18/97 (bug fixes) Fixed segfault in "namespace import"; importing a
+procedure that causes a cycle now returns an error. Modified "info procs",
+"info args", "info body", and "info default" to return information about
+imported procedures as well as procedures defined in a namespace. (BL)
+
+12/19/97 (enhancement) Added new Tcl_GetString() procedure that can be used
+in place of Tcl_GetStringFromObj() if the string representation's length
+isn't needed. (BL)
+
+12/18/97 (bug fix) In the opt argument parsing package: if the description
+had only flags, the "too many arguments" case was not detected. The default
+value was not used for the special "args" ending argument. (DL)
+
+1/7/98 (clean up) Moved everything not absolutly necessary out of init.tcl
+procs now in auto.tcl and package.tcl can be autoloaded if needed. (DL)
+
+1/7/98 (enhancement) tcltest made at install time will search for it's
+init.tcl where it is, even when using virtual path compilation. (DL)
+
+1/8/98 (os bug workaround) when needed, using a replacement for memcmp so
+string compare "char with high bit set" "char w/o high bit set" returns
+the expected value on all platforms. (DL)
+
+1/8/98 (unix portability/configure) building from .../unix/targetName/
+subdirectories and simply using "../configure" should now work fine. (DL)
+
+1/14/98 (enhancement) Added new regular expression package that
+supports AREs, EREs, and BREs. The new package includes new escape
+characters, meta-syntax, and character classes inside brackets.
+Regexps involving backslashes may behave differently. (MH)
+*** POTENTIAL INCOMPATIBILITY ***
+
+1/16/98 (os workaround) Under windows, "file volume" was causing chatter
+and/or several seconds of hanging when querying empty floppy drives.
+Changed implementation to call an empirically-derived function that doesn't
+cause this. (CCS)
+
+1/16/98 (enhancement) Converted regular expressions to a Tcl_Obj type so
+their compiled form gets cached automatically. Reduced NSUBEXP from 100
+to 20. (BW)
+
+1/16/98 (documentation) Change unclear documentation and comments for
+functions like Tcl_TranslateFileName() and Tcl_ExternalToUtfDString(). Now
+it explicitly says they take an uninitialized or free DString. A DString
+that is "empty" or "not holding anything" could have been interpreted as one
+currently with a zero length, but with a large dynamically allocated buffer.
+(CCS)
+
+----------------- Released 8.1a1, 1/22/98 -----------------------
+
+1/28/98 (new feature) Added a "-direct" optional flag to pkg_mkIndex
+to generate direct loading package indexes (such those you need
+if you use namespaces and plan on using namespace import just after
+package require). pkg_mkIndex still has limitations regarding
+package dependencies but errors are now ignored and with -direct, correct
+package indexes can be generated even if there are dependencies as long
+as the "package provide" are done early enough in the files. (DL)
+
+1/28/98 (enhancement) Performance tuning of regexp and regsub. (CCS)
+
+1/28/98 (bug fix) regexp and regsub with "-indices" returned the byte-offsets
+of the characters in the UTF-8 representation, not the character offsets
+themselves. (CCS)
+
+1/28/98 (bug fix) "clock format 0 -format %Z -gmt 1" would return the local
+timezone string instead of "GMT" on Solaris and Windows.
+
+1/28/98 (bug fix) Restore tty settings when closing serial device on Unix.
+This is good behavior when closing real serial devices, essential when
+closing the pseudo-device /dev/tty because the user's terminal settings
+would be left useless, in raw mode, when tcl quit. (CCS)
+
+1/28/98 (bug fix) Tcl_OpenCommandChannel() was modifying the contents of the
+argv array passed to it, causing problems for any caller that wanted to
+continue to use the argv array after calling Tcl_OpenCommandChannel(). (CCS)
+
+2/1/98 (bug fix) More bugs with %Z in format string argument to strftime():
+1. Borland always returned empty string.
+2. MSVC always returned the timezone string for the current time, not the
+ timezone string for the specified time.
+3. With MSVC, "clock format 0 -format %Z -gmt 1" would return "GMT" the first
+ time it was called, but would return the current timezone string on all
+ subsequent calls. (CCS)
+
+2/1/98 (bug fix) "file stat" was broken on Windows.
+1. "file stat" of a root directory (local or network) or a relative path that
+ resolved to a root directory (c:. when in pwd was c:/) was returning error.
+2. "file stat" on a regular file (S_IFREG), the st_mode was sign extended to
+ a negative int if the platform-dependant type "mode_t" was declared as a
+ short instead of an unsigned short.
+3. "file stat" of a network directory, the st_dev was incorrectly reported
+ as the id of the last accessed local drive rather than the id of the
+ network drive. (CCS)
+
+2/1/98 (bug fix) "file attributes" of a relative path that resolved to a
+root directory was returning error. (CCS)
+
+2/1/98 (bug fix) Change error message when "file attribute" could not
+determine the attributes for a file. Previously it would return different
+error messages on Unix vs. Windows vs. Mac. (CCS)
+
+2/4/98 (bug fixes) Fixed several instances of bugs where the parser/compiler
+would reach outside the range of allocated memory. Improved the array
+lookup algorithm in set compilation. (DL)
+
+2/5/98 (change) The TCL_PARSE_PART1 flag for Set/Get(Obj)Var2 C APIs is now
+deprecated and ignored. The part1 is always parsed when the part2 argument
+is NULL. This is to avoid a pattern of errors for extension writers converting
+from string based Tcl_SetVar() to new Tcl_SetObjVar2() and who could easily
+forget to provide the flag and thus get code working for normal variables
+but not for array elements. The performance hit is minimal. A side effect
+of that change is that is is no longer possible to create scalar variables
+that can't be accessed by tcl scripts because of their invalid name
+(ending with parenthesis). Likewise it is also parsed and checked to
+ensure that you don't create array elements of array whose name is a valid
+array element because they would not be accessible from scripts anyway.
+Note: There is still duplicate array elements parsing code. (DL)
+*** POTENTIAL INCOMPATIBILITY ***
+
+2/11/98 (bug fix) Sharing objects between interps, such as by "interp
+eval" or "send" could cause a crash later when dereferencing an interp
+that had been deleted, given code such as:
+ set a {set x y}
+ interp create foo
+ interp eval foo $a
+ interp delete foo
+ unset a
+Interp "foo" was gone, but "a" had a internal rep consisting of bytecodes
+containing a dangling pointer to "foo". Unsetting "a" would attempt to
+return resources back to "foo", causing a crash as random memory was
+accessed. The lesson is that that if an object's internal rep depends on
+an interp (or any other data structure) it must preserve that data in
+some fashion. (CCS)
+
+2/11/98 (enhancement) The "interp" command was returning inconsistent error
+messages when the specified slave interp could not be found. (CCS)
+
+2/11/98 (bug fix) Result codes like TCL_BREAK and TCL_CONTINUE were not
+propagating through the master/slave interp boundaries, such as "interp
+eval" and "interp alias". TCL_OK, TCL_ERROR, and non-standard codes like
+teh integer 57 work. There is still a question as to whether TCL_RETURN
+can/should propagate. (CCS)
+
+2/11/98 (bug fix) TclCompileScript() was derefering memory 1 byte before
+start of the string to compile, looking for ']'. (CCS,DL)
+
+2/11/98 (bug fix) Tcl_Eval2() was derefering memory 1 byte before start
+of the string to eval, looking for ']'. (CCS,DL)
+
+2/11/98 (bug fix) Compiling "set a(b" was running off end of string. (CCS,DL)
+
+2/11/98 (bug fix) Windows initialization code was dereferencing
+uninitialized memory if TCL_LIBRARY environment didn't exist. (CCS)
+
+2/11/98 (bug fix) Windows "registry" command was dereferencing
+uninitialized memory when constructing the $errorCode for a failed
+registry call. (CCS)
+
+2/11/98 (enhancement) Eliminate the TCL_USE_TIMEZONE_VAR definition from
+configure.in, because it was the same information as the already existing
+HAVE_TM_ZONE definition. The lack of HAVE_TM_ZONE is used to work around a
+Solaris and Windows bug where "clock format [clock sec] -format %Z -gmt 1"
+produces the local timezone string instead of "GMT". (CCS)
+
+2/11/98 (bug fix) Memleaks and dereferencing of uninitialized memory in
+regexp if an error occurred while compiling a regular expression. (CCS).
+
+2/18/98 (new feature) Added mutexes and thread local storage in order
+to make Tcl thread safe. For testing purposes, there is a testthread
+command that creates a new thread and an interpreter inside it. See
+thread.test for examples, but this script-level interface is not fixed.
+Each thread has its own notifier instance to manage its own events,
+and threads can post messages to each other's message queue.
+This uses pthreads on UNIX, and native thread support on other platforms.
+You enable this by configuring with --enable-threads. Note that at
+this time *Tk* is still not thread safe. Special thanks to
+Richard Hipp: his earlier implementation inspired this work. (BW, SS, JI)
+
+2/18/98 (hidden feature change) The way the env() array is shared among
+interpreters changed. Updates to env used to trigger write traces in
+other interpreters. This undocumented feature is no longer implemented.
+Instead, variable tracing is used to keep the C-level environ array in sync
+with the Tcl-level env array. This required adding TCL_TRACE_ARRAY support
+to Tcl_TraceVar2 so that array names works properly. (BW)
+*** POTENTIAL INCOMPATIBILITY ***
+
+2/18/98 (enhancement) Conditional compilation for unix systems (e.g.,
+IRIX, SCO) that use f_bsize instead of st_blksize to determine disk block
+size. (CCS)
+
+2/23/98 (bug fix) Fixed the emulation of polling selects in the threaded
+version of the Unix notifier. The bug was showing up on a multiprocessor
+as starvation of the notifier thread. (BW)
+
+----------------- Released 8.1a2, Feb 23 1998 -----------------------
+
+9/22/98 (bug fix) Changed the value of TCL_TRACE_ARRAY so it no longer
+conflicts with the deprecated TCL_PARSE_PART1 flag. This should
+improve portability of C code. (stanton)
+
+10/6/98 (bug fix) The compile procedure for "if" incorrectly attempted
+to match against the literal string "if", resulting in a stack
+overflow when "::if" was compiled. It also would incorrectly accept
+"if" instead of "elsif" in later clauses. (stanton)
+
+10/15/98 (new feature) Added a "totitle" subcommand to the "string"
+command to convert strings to capitalize the first character of a string
+and lowercase all of the other characters. (stanton)
+
+10/15/98 (bug fix) Changed regexp and string commands to properly
+handle case folding according to the Unicode character
+tables. (stanton)
+
+10/21/98 (new feature) Added an "encoding" command to facilitate
+translations of strings between different character encodings. See
+the encoding.n manual entry for more details. (stanton)
+
+11/3/98 (bug fix) The regular expression character classification
+syntax now includes Unicode characters in the supported
+classes. (stanton)
+
+11/6/98 (bug fix) Variable traces were causing crashes when upvar
+variables went out of scope. [Bug: 796] (stanton)
+
+11/9/98 (bug fix) "format" now correctly handles multibyte characters
+in %s format strings. (stanton)
+
+11/10/98 (new feature) "regexp" now accepts three new switches
+("-line", "-lineanchor", and "-linestop") that control how regular
+expressions treat line breaks. See the regexp manual entry for more
+details. (stanton)
+
+11/17/98 (bug fix) "scan" now correctly handles Unicode
+characters. (stanton)
+
+11/17/98 (new feature) "scan" now supports XPG3 position specifiers
+and the "%n" conversion character. See the "scan" manual entry for
+more details. (stanton)
+
+11/17/98 (bug fix) The Tcl memory allocator now returns 8-byte aligned
+chunks of memory which improves performance on Windows and avoids
+crashes on other platforms. [Bug: 834] (stanton)
+
+11/23/98 (bug fix) Applied various regular expression performance bug
+fixes supplied by Henry Spencer. (stanton)
+
+11/30/98 (bug fix) Fixed various thread related race conditions. [Bug:
+880 & 607] (stanton)
+
+11/30/98 (bug fix) Fixed a number of memory overflow and leak
+bugs. [Bug: 584] (stanton)
+
+12/1/98 (new feaure) Added support for Korean encodings. (stanton)
+
+12/1/98 (feature change) Changed the Tcl_EvalObjv interface to remove
+the string and length arguments.
+*** POTENTIAL INCOMPATIBILITY with previous alpha releases ***
+
+12/2/98 (bug fix) Fixed various bugs related to line feed
+translation. [Bug: 887] (stanton)
+
+12/4/98 (new feature) Added a message catalog facility to help with
+localizing Tcl scripts. Thanks to Mark Harrison for contributing the
+initial implementation of the "msgcat" package. (stanton)
+
+12/7/98 (bug fix) The memory allocator was failing to update the
+block list for large memory blocks that were reallocated into a
+different address. [Bug: 933] (stanton)
+
+----------------- Released 8.1b1, Dec 10 1998 -----------------------
+
+12/22/98 (performance improvement) Improved the -command option of the
+lsort command to better use the object system for improved
+performance (about 5x speed up). Thanks to Syd Polk for suppling the
+patch. [RFE: 726] (rjohnson)
+
+2/10/99 (bug fix) Restored the Tcl_ObjSetVar2/Tcl_ObjGetVar2
+interfaces from 8.0 and renamed the Tcl_GetObjVar2/Tcl_SetObjVar2
+interfaces to Tcl_GetVar2Ex and Tcl_SetVar2Ex. This should provide
+better compatibility with 8.0. (stanton)
+*** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
+
+2/10/99 (bug fix) Made the eval interfaces compatible with 8.0 by
+renaming Tcl_EvalObj to Tcl_EvalObjEx, renaming Tcl_Eval2 to
+Tcl_EvalEx and restoring Tcl_EvalObj and Tcl_GlobalEvalObj interfaces
+so they match Tcl 8.0. (stanton)
+*** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
+
+2/25/99 (bug fix/new feature) On Windows, the channel drivers for
+consoles and serial ports now completely support file events. (redman)
+
+3/5/99 (bug fix) Integrated patches to fix various configure problems
+that affected HP-UX-11, 64-bit IRIX, Linux, and Solaris. (stanton)
+
+3/9/99 (bug fix) Integrated various AIX related patches to improve
+support for shared libraries. (stanton)
+
+3/9/99 (new feature) Added tcl_platform(user) to provide a portable
+way to get the name of the current user. (welch)
+
+3/9/99 (new feature) Integrated the stub library mechanism contributed
+by Jan Nijtmans, Paul Duffin, and Jean-Claude Wippler. This feature
+should make it possible to write extensions that support multiple
+versions of Tcl simultaneously. It also makes it possible to
+dynamically load extensions into statically linked interpreters. This
+patch includes the following changes:
+ - Added a Tcl_InitStubs() interface
+ - Added Tcl_PkgProvideEx, Tcl_PkgRequireEx, Tcl_PkgPresentEx,
+ and Tcl_PkgPresent.
+ - Added va_list versions of all VARARGS functions so they can be
+ invoked from wrapper functions.
+See the manual for more information. (stanton)
+
+
+3/10/99 (feature change) Replaced Tcl_AlertNotifier with
+Tcl_ThreadAlert since the Tcl_AlertNotifier function relied on passing
+internal data structures. (stanton)
+*** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
+
+3/10/99 (new feature) Added a Tcl_GetVersion API to make it easier to
+check the Tcl version and patch level from C. (redman)
+
+3/14/99 (feature change) Tried to unify the TclpInitLibrary path
+routines to look in similar places from Windows to UNIX. The new
+library search path is: TCL_LIBRARY, TCL_LIBRARY/../tcl8.1, relative
+to DLL (Windows Only) relative to installed executable, relative to
+develop executable, and relative to compiled-in in location (UNIX
+Only.) This fix included:
+ - Defining a TclpFindExecutable
+ - Moving Tcl_FindExecutable to a common area in tclEncoding.c
+ - Modifying the TclpInitLibraryPath routines.
+(surles)
+
+3/14/99 (feature change) Added hooks for TclPro Wrapper to initialize
+the location of the encoding files and libraries. This fix included:
+ - Adding the TclSetPerInitScript routine.
+ - Modifying the Tcl_Init routines to evaluate the non-NULL
+ pre-init script.
+ - Adding the Tcl_SetdefaultEncodingDir and Tcl_GetDefaultEncodingDir
+ routines.
+ - Modifying the TclpInitLibrary routines to append the default
+ encoding dir.
+(surles)
+
+3/14/99 (feature change) Test suite now uses "test" namespace to
+define the test procedure and other auxiliary procedures as well as
+global variables.
+ - Global array testConfige is now called ::test::testConfig.
+ - Global variable VERBOSE is now called ::test::verbose, and
+ ::test::verbose no longer works with numerical values. We've
+ switched to a bitwise character string. You can set
+ ::test::verbose by using the -verbose option on the Tcl command
+ line.
+ - Global variable TESTS is now called ::test::matchingTests, and
+ can be set on the Tcl command line via the -match option.
+ - There is now a ::test::skipTests variable (works similarly to
+ ::test::matchTests) that can be set on the Tcl command line via
+ the -match option.
+ - The test suite can now be run in any working directory. When
+ you run "make test", the working directory is nolonger switched
+ to ../tests.
+(hirschl)
+*** POTENTIAL INCOMPATIBILITY ***
+
+--------------- Released 8.1b2, March 16, 1999 ----------------------
+
+3/18/99 (bug fix) Fixed missing/incorrect characters in shift-jis table
+(stanton)
+
+3/18/99 (feature change) The glob command ignores the
+FS_CASE_IS_PRESERVED bit on file systesm and always returns
+exactly what it gets from the system. (stanton)
+*** POTENTIAL INCOMPATIBILITY ***
+
+3/19/99 (new feature) Added support for --enable-64bit. For now,
+this is only supported on Solaris 7 64bit (SunOS 5.7) using the Sun
+compiler. (redman)
+
+3/23/99 (bug fix) Fixed fileevents and gets on Windows consoles and
+serial devices so that non-blocking channels do not block on partial
+input lines. (redman)
+
+3/23/99 (bug fix) Added a new Tcl_ServiceModeHook interface.
+This is used on Windows to avoid the various problems that people
+have been seeing where the system hangs when tclsh is running
+outside of the event loop. As part of this, renamed
+TclpAlertNotifier back to Tcl_AlertNotifier since it is public.
+(stanton)
+
+3/23/99 (feature change) Test suite now uses "tcltest" namespace to
+define the test procedure and other auxiliary procedures as well as
+global variables. The previously chosen "test" namespace was thought
+to be too generic and likely to create conflits.
+(hirschl)
+*** POTENTIAL INCOMPATIBILITY ***
+
+3/24/99 (bug fix) Make sockets thread safe on Windows.
+(redman)
+
+3/24/99 (bug fix) Fix cases where expr would incorrect return
+a floating point value instead of an integer. (stanton)
+
+3/25/99 (bug fix) Added ASCII to big5 and gb2312 encodings.
+(stanton)
+
+3/25/99 (feature change) Changed so aliases are invoked at current
+scope in the target interpreter instead of at the global scope. This
+was an incompatibility introduced in 8.1 that is being removed.
+(stanton)
+*** POTENTIAL INCOMPATIBILITY with previous beta releases ***
+
+3/26/99 (feature change) --enable-shared is now the default and build
+Tcl as a shared library; specify --disable-shared to build a static Tcl
+library and shell.
+*** POTENTIAL INCOMPATIBILITY ***
+
+3/29/99 (bug fix) Removed the stub functions and changed the stub
+macros to just use the name without params. Pass &tclStubs into the
+interp (don't use tclStubsPtr because of collisions with the stubs on
+Solaris). (redman)
+
+3/30/99 (bug fix) Loadable modules are now unloaded at the last
+possible moment during Tcl_Finalize to fix various exit-time crashes.
+(welch)
+
+3/30/99 (bug fix) Tcl no longer calls setlocale(). It looks at
+env(LANG) and env(LC_TYPE) instead. (stanton)
+
+4/1/99 (bug fix) Fixed the Ultrix multiple symbol definition problem.
+Now, even Tcl includes a copy of the Tcl stub library. (redman)
+
+4/1/99 (bug fix) Internationalized the registry package.
+
+4/1/99 (bug fix) Changed the implemenation of Tcl_ConditionWait and
+Tcl_ConditionNotify on Windows. The new algorithm eliminates a race
+condition and was suggested by Jim Davidson. (welch)
+
+4/2/99 (new apis) Made various Unicode utility functions public.
+Tcl_UtfToUniCharDString, Tcl_UniCharToUtfDString, Tcl_UniCharLen,
+Tcl_UniCharNcmp, Tcl_UniCharIsAlnum, Tcl_UniCharIsAlpha,
+Tcl_UniCharIsDigit, Tcl_UniCharIsLower, Tcl_UniCharIsSpace,
+Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar, Tcl_WinUtfToTChar,
+Tcl_WinTCharToUtf (stanton)
+
+4/2/99 (feature change) Add new DDE package and removed the Tk
+send command from the Windows version. Changed DDE-based send
+code into "dde eval" command. The DDE package can be loaded
+into tclsh, not just wish. Windows only. (redman)
+
+4/5/99 (bug fix) Changed safe-tcl so that the encoding command
+is an alias that masks out the "encoding system" subcommand.
+(redman)
+
+4/5/99 (bug fix) Configure patches to improve support for
+OS/390 and BSD/OS 4.*. (stanton)
+
+4/5/99 (bug fix) Fixed crash in the clock command that occurred
+with negative time values in timezones east of GMT. (stanton)
+
+4/6/99 (bug fix) Moved the "array set" C level code into a common
+routine (TclArraySet). The TclSetupEnv routine now uses this API to
+create an env array w/ no elements. This fixes the bug caused when
+every environ varaible is removed, and the Tcl env variable is
+synched. If no environ vars existed, the Tcl env var would never be
+created. (surles)
+
+4/6/99 (bug fix) Made the Env module I18N compliant. (surles)
+
+4/6/99 (bug fix) Changed the FindVariable routine to TclpFindVariable,
+that now does a case insensitive string comparison on Windows, and not
+on UNIX. (surles)
+
+--------------- Released 8.1b3, April 6, 1999 ----------------------
+
+4/9/99 (bug fix) Fixed notifier deadlock situation when the pipe used
+to talk back notifier thread is filled with data. Found as a result of the
+focus.test for Tk hanging. (redman)
+
+4/13/99 (bug fix) Fixed bug where socket -async combined with
+fileevent for writing did not work under Windows NT. (redman)
+
+4/13/99 (encoding fix) Restored the double byte definition of GB2312
+and added the EUC-CN encoding. EUC-CN is a variant of GB2312 that
+shifts the characters into bytes with the high bit set and includes
+ASCII as a subset. (stanton)
+
+4/27/99 (bug fix) Added 'extern "C" {}' block around the stub table
+pointer declaration so the stub library can be used from C++. (stanton)
+
+--------------- Released 8.1 final, April 29, 1999 ----------------------
+
+4/22/99 (bug fix) Changed Windows NT socket implementation to avoid
+creating a communication window. This avoids the problem where the
+system hangs waiting for tclsh to respond to a system-wide synchronous
+broadcast (e.g. if you change system colors). (redman)
+
+4/22/99 (bug fix) Added call to TclWinInit from TclpInitPlatform when
+building a static library since DllMain will not be invoked. This
+could break old code that explicitly called TclWinInit, but should be
+simpler in the long run. (stanton)
+*** POTENTIAL INCOMPATIBILITY ***
+
+4/23/99 (bug fix) Added support for the koi8-r Cyrillic
+encoding. [Bug: 1771] (stanton)
+
+4/28/99 (bug fix) Changed internal Tcl_Obj usage to avoid freeing the
+internal representation after the string representation has been
+freed. This makes it easier to debug extensions. (stanton)
+
+4/30/99 (bug fix) Fixed a memory leak in CommandComplete. (stanton)
+
+5/3/99 (bug fix) Fixed a bug where the Tcl_ObjType was not being set
+in a duplicated Tcl_Obj. [Bug: 1975, 2047] (stanton)
+
+5/3/99 (bug fix) Changed Tcl_ParseCommand to avoid modifying eval'ed
+strings that are already null terminated. [Bug: 1793] (stanton)
+
+5/3/99 (new feature) Applied Jeff Hobbs's string patch which includes
+the following changes:
+ - added new subcommands: equal, repeat, map, is, replace
+ - added -length option to "string compare|equal"
+ - added -nocase option to "string compare|equal|match"
+ - string and list indices can be an integer or end?-integer?.
+ - added optional first and last index args to string toupper, et al.
+See the string.n manual entry for more details about the new string
+features. [Bug: 1845] (stanton)
+
+5/6/99 (new feature) Added Tcl_UtfNcmp and Tcl_UtfNcasecmp to make Utf
+string comparision easier. (stanton)
+
+5/7/99 (bug fix) Improved OS/390 support. [Bug: 1976, 1997] (stanton)
+
+5/12/99 (bug fix) Changed Windows initialization code to avoid using
+GetUserName system call in favor of the env(USERNAME) variable. This
+provides a significant startup speed improvement. (stanton)
+
+5/12/99 (bug fix) Replaced the per-interpreter regexp cache with a
+per-thread cache. Changed the Regexp object to take advantage of this
+extra cache. Added a reference count to the TclRegexp type so regexps
+can be shared by multiple objects. Removed the per-interp regexp cache
+from the interpreter. Now regexps can be used with no need for an
+interpreter. This set of changes should provide significant speed
+improvements for many Tcl scripts. [Bug: 1063] (stanton)
+
+5/14/99 (bug fix) Durining initialization on Unix, Tcl now extracts the
+encoding subfield from the LANG/LC_ALL environment variables in cases
+where the locale is not found in the built-in locale table. It also
+attempts to initialize the locale subsystem so X11 is happy. [Bug: 1989]
+(stanton)
+
+5/14/99 (bug fix) Applied the patch to fix 100-year and 400-year
+boundaries in leap year code, from Isaac Hollander. [Bug: 2066] (redman)
+
+5/14/99 (bug fix) Fixed a crash caused by a failure to reset the result
+before evaluating the test expression in an uncompiled for
+statement. (stanton)
+
+5/18/99 (bug fix) Modified initialization code on Windows to avoid
+inherenting closed or invalid channels. If the standard input is
+anything other than a console, file, serial port, or pipe, then we fall
+back to the standard Tk window console. (stanton)
+
+5/19/99 (bug fix) Added an extern "C" block around the entire tcl.h
+header file to avoid C++ linkage issues. (redman)
+
+5/19/99 (new feature) Applied Jeff Hobb's patch to add
+Tcl_StringCaseMatch to support case insensitive glob style matching and
+Tcl_UniCharIs* character classification functions. (stanton)
+
+5/20/99 (bug fix) Added the directory containing the executuble and the
+../lib directory relative to that to the auto_path variable. (redman)
+
+--------------- Released 8.1.1, May 25, 1999 ----------------------
+
+5/21/99 (bug fix) Fixed launching command.com on Win95/98, no longer
+hangs. [Bug: 2105] (redman)
+
+5/28/99 (bug fix) Fixed bug where dde calls were being passed an
+invalid dde handle. [Bug: 2124] (stanton)
+
+6/1/99 (bug fix) Small configure.in patches. [Bug: 2121] (stanton)
+
+6/1/99 (bug fix) Applied latest regular expression patches to fix an
+infinite loop bug and add support for testing whether a string could
+match with additional input. [Bug: 2117] (stanton)
+
+6/2/99 (bug fix) Fixed incorrect computation of relative ordering in
+Utf case-insensitive comparison. [Bug: 2135] (stanton)
+
+6/3/99 (bug fix) Fxied bug where string equal/compare -nocase
+reported wrong result on null strings. [Bug: 2138] (stanton)
+
+6/4/99 (new feature) Windows build now uses Cygwin tools plus GNU
+make and autoconf to build static/dynamic and debug/nodebug. (stanton)
+
+6/7/99 (new feature) Optimized string index, length, range, and
+append commands. Added a new Unicode object type. (hershey)
+
+6/8/99 (bug fix) Rolled back Windows socket driver to 8.1.0
+version. (stanton)
+
+6/9/99 (new feature) Added Tcl_RegExpMatchObj and Tcl_RegExpGetInfo
+to public Tcl API, these functions are needed by Expect. Changed
+tools/genStubs.tcl to always write output in LF mode. (stanton)
+
+6/14/99 (new feature) Merged string and Unicode object types. Added
+new public Tcl API functions: Tcl_NewUnicodeObj, Tcl_SetUnicodeObj,
+Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange,
+Tcl_AppendUnicodeToObj. (hershey)
+
+6/16/99 (new feature) Changed to conform to TEA specification, added
+tcl.m4 and aclocal.m4 macro libraries for configure. (wart)
+
+6/17/99 (new feature) Added new regexp interfaces: -expanded, -line,
+-linestop, and -lineanchor switches. Renamed Tcl_RegExpMatchObj to
+Tcl_RegExpExecObj and added new Tcl_RegExpMatchObj that is equivalent
+to Tcl_RegExpMatch. Added public macros for regexp flags. Added
+REG_BOSONLY flag to allow Expect to iterate through a string and only
+find matches that start at the current position within the
+string. (stanton)
+
+6/21/99 (bug fix) Fixed memory leak in TclpThreadCreate where thread
+attributes were not being released. [Bug: 2254] (stanton)
+
+6/23/99 (new feature) Updated Unicode character tables to reflect
+Unicode 2.1 data. (stanton)
+
+6/25/99 (new feature) Fixed bugs in non-greedy quantifiers for regular
+expression code. (stanton)
+
+6/25/99 (new feature) Added initial implementation of new Tcl test
+harness package. Modified test files to use new tcltest package.
+(jenn)
+
+6/26/99 (new feature) Applied patch from Peter Hardie to add poke
+command to dde and changed the dde package version number to
+1.1. (redman)
+
+6/28/99 (bug fix) Applied patch from Peter Hardie to fix problem in
+Tcl_GetIndexFromObj() when the key being passed is the empty string.
+[Bug: 1738] (redman)
+
+6/29/99 (new feature) Added options to tcltest package: -preservecore,
+-limitconstraints, -help, -file, -notfile, and flags. (jenn)
+
+7/3/99 (new feature) Changed parsing of variable names to allow empty
+array names. Now "$(foo)" is a variable reference. Previously you
+had to use something line $::(foo), which is slower. This change was
+requested by Jean-Luc Fontaine for his STOOOP package. (welch)
+
+7/3/99 (new feature) Added Tcl_SetNotifier (public API) and
+associated hook points in the notifiers to be able to replace the
+notifier calls at runtime. The Xt notifier and test program use this
+hook. (welch)
+
+7/3/99 (new feature) Added a new variant of the "Trf core patch" from
+Andreas Kupries that adds new C APIs Tcl_StackChannel,
+Tcl_UnstackChannel, and Tcl_GetStackedChannel. This allows the Trf
+extension to work without applying patches to the Tcl core. (welch)
+
+7/6/99 (new feature) Added -timeout option to http.tcl to handle
+timeouts that occur during connection attempts to hosts that are
+down. (welch)
+
+7/6/99 (bug fix) Applied new implementation of the Windows serial
+port driver from Rolf Schroedter that fixes reading only one byte from
+the port at a time. Uses polling every 10ms to implement
+fileevents. [Bug: 1980 2217] (redman)
+
+7/8/99 (bug fix) Applied fix for bug in DFA state caching under
+lookahead conditions (regular expressions). [Bug: 2318] (stanton)
+
+7/8/99 (bug fix) Fixed bug in string range bounds checking
+code. (stanton)
+
+--------------- Released 8.2b1, July 14, 1999 ----------------------
+
+7/16/99 (bug fix) Added Tcl_SetNotifier to stub table. [Bug: 2364]
+Added check for Alpha/Linux to correct the IEEE floating point flag,
+patch from Don Porter. (redman)
+
+7/20/99 (bug fix) Merged 8.0.5 code to handle tcl_library properly,
+also fixed a bug that caused TCL_LIBRARY to be ignored. (hershey)
+
+7/21/99 (bug fix) Implemented modified socket driver for Windows that
+uses a thread to manage the socket event window. Code works the same
+on all supported versions of Windows and was based on original 8.1.0
+code. [Bug: 2178 2256 2259 2329 2323 2355] (redman)
+
+7/21/99 (new feature) Applied patch from Rolf Schroedter to add
+-pollinterval option to fconfigure for Windows serial ports. Allows
+the maxblocktime to be modified to control how often serial ports are
+checked for fileevents. Also added documentation for \\.\comX
+notation for opening serial ports on Windows. (redman)
+
+7/21/99 (bug fix) Changed APIs in stub tables to use "unsigned long"
+instead of the platform-specific "size_t", primarily after SunOS 4
+users could no longer compile. (redman)
+
+7/22/99 (bug fix) Fixed crashing during "array set a(b) {}".
+[Bug: 2427] (redman)
+
+7/22/99 (bug fix) The install-sh script must be given execute
+permissions prior to running. [Bug: 2413] (redman)
+
+7/22/99 (bug fix) Applied patch from Ulrich Ring to remove ANSI-style
+prototypes in the code. [Bug: 2391] (redman)
+
+7/22/99 (bug fix) Added #if blocks around #includes of sys/*.h header
+files, to allow an extension author on Windows to use the MetroWerks
+compiler. [Bug: 2385] (redman)
+
+7/22/99 (bug fix) Fixed running the safe.test test suite, one change
+to the Windows Makefile.in to fix paths and another in safe.test to
+check for the tcl_platform(threaded) variable properly. (redman)
+
+7/22/99 (bug fix) Fixed hanging in new Win32 socket driver with
+threads enabled. (redman)
+
+7/26/99 (bug fix) Fixed terminating of helper threads by holding any
+mutexes from the primary thread while waiting for the helper thread to
+terminate. Fixes dual-CPU WinNT hangs, only one rare sporadic hang
+that still exists with dual-CPU WinNT. Also fixed test cases so that
+they would not depend as much on timing for dual-CPU WinNT. (redman)
+
+7/27/99 (bug fix) Some test suite cleanup. (jenn)
+
+7/29/99 (bug fix) Applied patch to fix typo in .SH NAME line in
+doc/Encoding.n [Bug: 2451]. Applied patch to avoid linking pack.n to
+pack-old.n [Bug: 2469]. Patches from Don Porter. (redman)
+
+7/29/99 (bug fix) Allow tcl to open CON and NUL, even for redirection
+of std channels. [Bug: 2393 2392 2209 2458] (redman)
+
+7/30/99 (bug fix) Applied fixed Trf patch from Andreas Kupries.
+[Bug: 2386] (hobbs)
+
+7/30/99 (bug fix) Fixed bug in info complete. [Bug: 2383 2466] (hobbs)
+
+7/30/99 (bug fix) Applied patch to fix threading on Irix 6.5, patch
+provided by James Dennett. [Bug: 2450] (redman)
+
+7/30/99 (bug fix) Fixed launching of 16bit applications on Win9x from
+wish. The command line was being primed with tclpip82.dll, but it was
+ignored later.
+
+7/30/99 (bug fix) Added functions to stub table, patch provided by Jan
+Nijtmans. [Bug: 2445] (hobbs)
+
+8/1/99 (bug fix) Changed Windows socket driver to terminate threads
+by sending a message to the window rather than calling
+TerminateThread(), which seems to leak about 4k from the helper
+thread's stack space. (redman)
+
+--------------- Released 8.2b2, August 5, 1999 ----------------------
+
+8/4/99 (bug fix) Applied patches supplied by Henry Spencer to greatly
+enhance performance of certain classes of regular expressions.
+[Bug: 2440 2447] (stanton)
+
+8/5/99 (doc change) Made it clear that tcl_pkgPath was not set for
+Windows. [Bug: 2455] (hobbs)
+
+8/5/99 (bug fix) Fixed reference to bytes that might not be null
+terminated in tclLiteral.c. [Bug: 2496] (hobbs)
+
+8/5/99 (bug fix) Fixed typo in http.tcl. [Bug: 2502] (hobbs)
+
+8/9/99 (bug fix) Fixed test suite to handle larger integers
+(64bit). Patch from Don Porter. (hobbs)
+
+8/9/99 (documentation fix) Clarified Tcl_DecrRefCount docs
+[Bug: 1952]. Clarified array pattern docs [Bug: 1330]. Fixed clock docs
+[Bug: 693]. Fixed formatting errors [Bug: 2188 2189]. Fixed doc error
+in tclvars.n [Bug: 2042]. (hobbs)
+
+8/9/99 (bug fix) Fixed path handling in auto_execok [Bug: 1276] (hobbs)
+
+8/9/99 (internal api change) Removed the TclpMutexLock and TclpMutexUnlock
+APIs and added a new exported api, Tcl_GetAllocMutex. These APIs are all for
+the mutex used in the simple memory allocators. By making this change
+we are able to substitute different implementations of the thread-related
+APIs without having to recompile the Tcl core. (welch)
+
+8/9/99 (new C API) Tcl_GetChannelNames returns a list of open channel
+names in the interpreter result. Still no Tcl-level version of this,
+but server-like applications can use this to clean up files without
+deleting interpreters. (welch)
+
+8/9/99 (bug fix) Traces were not firing on "info exists", which used to
+happen in Tcl 7.6 and earlier. An "info exists" now fires a read trace,
+if defined. This makes it possible to fully implement variables that
+are defined via traces. (welch)
+
+8/10/99 (bug fix) Fixed Brent's changes so that they work on
+Windows. (redman)
+
+--------------- Released 8.2b3, August 11, 1999 ----------------------
+
+8/12/99 (Mac) Rearrange projects in tclMacProjects.sea.hqx so that the
+build directory is separate from the sources. (Jim Ingham)
+
+8/12/99 (bug fix) Fixed bug in Tcl_EvalEx where the termOffset was not
+being updated in cases where the evaluation returned a non TCL_OK
+error code. [Bug: 2535] (stanton)
+
+--------------- Released 8.2.0, August 17, 1999 ----------------------
+
+9/21/99 (config fixes) fixed several AIX configuration issues. gcc and
+threading may still cause problems on AIX. (hobbs)
+
+9/21/99 (bug fix) fixed expr double-eval problem. [Bug: 732] (hobbs)
+
+9/21/99 (bug fix) fixed static buffer overflow problem. [Bug: 2483] (hobbs)
+
+9/21/99 (bug fix) fixed end-int linsert interpretation. [Bug: 2693] (hobbs)
+
+9/21/99 (bug fix) fixed bug when setting array in non-existent
+namespace. [Bug: 2613] (hobbs)
+
+--- Released 8.2.1, October 04, 1999 --- See ChangeLog for details ---
+
+10/30/99 (feature enhancement) new regexp engine from Henry Spencer
+was patched in - should greatly reduce stack space usage. (spencer)
+
+10/30/99 (bug fix) fixed Purify reported memory leaks in findexecutable
+test command, TclpCreateProcess on Unix, in handling of C environ array,
+and in testthread code. No more known (reported) mem leaks for Tcl
+built using gcc on Solaris 2.5.1. Also none reported for Tcl on NT
+(using Purify 6.0). (hobbs)
+
+10/30/99 (bug fix) fixed improper bytecode handling of
+'eval {set array($unknownvar) 5}' (also for incr) (hobbs)
+
+10/30/99 (bug fix) fixed event/io threading problems by making
+triggerPipe non-blocking (nick kisserbeth)
+
+10/30/99 (bug fix) fixed Tcl_AppendStringsToObjVA and Tcl_AppendResultVA
+to only iterates once over the va_list (avoiding non-portable memcpy).
+(joe english, hobbs)
+
+10/30/99 (bug fix) removed savedChar trick in tclCompile.c that appeared
+to be causing a segv when the literal table was released.
+[Bug: 2459, 2515] (David Whitehouse)
+
+10/30/99 (bug fix) fixed [string index] to return ByteArrayObj
+when indexing into one (test case string-5.16) [Bug: 2871] (hobbs)
+
+10/30/99 (bug fix) fixes for mac UTF filename handling (ingham)
+
+--- Released 8.2.2, November 04, 1999 --- See ChangeLog for details ---
+
+11/19/99 (feature enhancement) bug fixes for http package as well as
+patch required by TLS (SSL) extension that adds http::(un)register
+and -type to http::geturl. Up'd http pkg version to 2.2.
+
+11/19/99 (bug fix) removed extra decr of numLevels in Tcl_EvalObjEx
+that could cause seg fault (mjansen@wendt.de)
+
+11/19/99 (bug fixes) numerous minor big fixes, including correcting the
+installation of the koi8-r encoding and tcltest1.0 on Windows.
+
+11/30/99 (bug fix) fixes scan where %[..] didn't match anything
+
+11/30/99 (bug fix) fixed setting of isNonBlocking flag in PipeBlockModeProc
+so you can now close a non-blocking channel without waiting.
+
+11/30/99 (bug work-around) prevented the unloading of DLLs for Unix in
+TclFinalizeLoad. This stops the seg fault on exit that some users would
+see (ie with oratcl) when using DLLs that do nasty things like register
+atexit handlers.
+
+12/07/99 (bug fix) fixes for 'expr + {[incr]}' and 'expr + {[error]}'
+cases (different causes).
+
+--- Released 8.2.3, December 16, 1999 --- See ChangeLog for details ---
+
+1999-09-14 (feature enhancement) added -start switch to regexp and regsub.
+
+1999-09-15 (feature enhancement) add 'array unset' command.
+
+1999-09-15 (feature enhancement) rewrote runtime libraries to use new
+string functions
+
+1999-08-18 (feature enhancement) added 'file channels' command, along with
+Tcl_GetChannelNames(Ex) public C APIs.
+
+1999-10-19 (feature enhancement) enhanced tcltest package
+
+1999-09-16 (feature enhancement) added -milliseconds switch to 'clock clicks'
+
+1999-10-28 (feature enhancement) added support for inline 'scan'
+
+1999-10-28 (feature enhancement) added support for touch functionality by
+extendeding 'file atime' and 'file mtime' to take an optional time argument
+
+1999-11-24 (feature enhancement) added 'fconfigure $sock -lasterror'
+command to Windows to query the last error received on a serial socket.
+
+1999-11-30 (bug fix) fixed handling of %Z on NT for timezones that don't
+have DST
+
+1999-12-03 (feature enhancement) improved error message in bad octal cases
+and improper use of comments. (hobbs)
+
+1999-12-07 (bug fix) fixed Tcl_ScanCountedElement to not step
+beyond the end of the counted string
+
+1999-12-09 (feature enhancement) removed all references to 16 bit
+compatibility code for Windows (hobbs)
+
+1999-12-10 (bug fix) removed check for vfork - Tcl now uses only fork in
+exec. (hobbs)
+
+1999-12-10 (optimization) changed Tcl_ConcatObj to return a list
+object when it receives all pure list objects as input (used by 'concat'),
+added optimizations in Tcl_EvalObjEx for pure list case, and optimized
+INST_TRY_CVT_TO_NUMERIC in TclExecuteByteCode for boolean objects.
+(oakley, hobbs)
+
+1999-12-12 (feature enhancement) enhanced glob command with -type, -path,
+-directory and -join switches. (darley, hobbs)
+
+1999-12-21 (bug fix) changed CreateThread to _beginthreadex and
+ExitThread to _endthreadex to prevent 4K mem leak (gravereaux)
+
+1999-12-21 (bug fix) fixed applescript for I18N
+
+1999-12-21 (feature enhancement) added -unique option to lsort (hobbs)
+
+1999-12-21 (bug fix) changed thread ids to longs (for 64bit systems)
+
+--- Released 8.3b1, December 22, 1999 --- See ChangeLog for details ---
+
+2000-01-10 (feature enhancement) clock scan now supports the common
+ISO 8601 date/time formats. See docs for details. (melski)
+
+2000-01-10 (bug fix) prevented \ooo substitution from accepting
+non-octal digits [Bug: 3975] (hobbs)
+
+2000-01-11 (bug fix) fixed improper handling of DST by clock when
+using relative times (like "1 month" or "tomorrow"). (melski)
+
+2000-01-12 (bug fix) improved build support for Tru64 v5, NetBSD
+and Reliant Unix (hobbs)
+
+2000-01-12 (bug fix) made imported commands also import their
+compile procedure (duffin)
+
+2000-01-12 (bug fix) fixed 'info procs ::namesp::*' behavior to return
+procs in a namespace (dejong)
+
+2000-01-12 (feature enhancement) added support for setting permissions
+symbolicly (like chmod) in [file attributes $file -permissions ...] (schoebel)
+
+2000-01-13 (bug fix) fixed lsort -dictionary problem when sorting
+characters between 'Z' and 'a' (flawed upper/lower comparison logic) (melski)
+
+--- Released 8.3b2, January 13, 2000 --- See ChangeLog for details ---
+
+2000-01-14 (feature enhancement) clock format %Q added, clock scan updated
+
+2000-01-20 (bug fix) corrected complex array elem compiling (Spjuth)
+
+2000-01-20 (bug fix) made [info body] always return a string type arg,
+to prevent possible misuse of bytecodes in the wrong context (hobbs)
+
+2000-01-20 (bug fixes) several fixes to variable handling to prevent
+possible crashes, and further definition of correct behavior (melski)
+
+2000-01-25 (bug fixes) improved QNX, Ultrix and OSF1 (Tru64) config and
+compatibility (edge, furukawa)
+
+2000-01-25 (bug fix) fixed mem leak when calling lsort with a bad -command
+argument (hobbs)
+
+2000-01-27 (feature enhancement) package mechanism overhaul: changed
+behavior of pkg_mkIndex to do -direct by default, added -lazy option.
+Fixed pkg_mkIndex to handle odd proc names and auto_mkIndex to use platform
+independent file paths. Other fixes for odd package quirks. Added
+::pkg namespace and ::pkg::create helper function. (melski)
+
+2000-02-01 (bug fix) fixed problem where http POST would send one extra
+newline (vasiljevic)
+
+2000-02-02 (feature enhancement) added docs for new regexp -inline and
+-all switches. (hobbs)
+
+2000-02-08 (bug fix) corrected handling of "next monthname" in clock scan
+(melski)
+
+2000-02-09 (bug fix) restored Mac source to build readiness and prevented
+mac panic from an error when closing an async socket (steffen, ingham)
+
+2000-02-10 (feature enhancement) improved error reporting for failed
+loads on Windows (dejong, hobbs)
+
+--- Released 8.3.0, February 10, 2000 --- See ChangeLog for details ---
+
+2000-03 (bug fixes, feature enhancement) overhaul of http package for
+proper handling of async callbacks (new options), version is now at 2.3
+(tamhankar, welch)
+
+2000-03 (performance enhancement) speedup in Windows filename handling (newman)
+and ==/!= empty string in exprs. (hobbs)
+
+2000-03-27 (bug fix) added uniq'ing test to namespace export list to
+prevent unnecessary mem growth (hobbs)
+
+2000-03-29 (bug fix) fixed mem leak when repeatedly sourcing the same
+bytecompiled (tbc) code repeatedly across different interpreters (hobbs)
+
+2000-03-29 (config enhancement) improved build support for gcc/mingw on
+Windows (nijtmans, hobbs) and added RPM target (melski)
+
+2000-03-31 (bug fix) corrected data encoding problem when using
+"exec << $data" construct (melski)
+
+2000-04 (feature enhancement) overhaul of threading mechanism to better
+support tcl level thread command (new APIs Tcl_ConditionFinalize,
+Tcl_MutexFinalize, Tcl_CreateThread, etc, all docs in Thread.3).
+(kupries, graveraux)
+This enables the tcl level thread extension. (welch)
+
+2000-04-10 (bug fix) fixed infinite loop case in regexp -all (melski)
+
+2000-04-13 (config enhancement) added support for --enable-64bit-vis
+Sparc target. (hobbs)
+
+2000-04-18 (bug fix) moved tclLibraryPath to thread-local storage to fix
+possible race condition on MP machines (hobbs)
+
+2000-04-18 (config enhancement) added MacOS X build target and
+tclLoadDyld.c dl type. (sanchez)
+
+2000-04-23 (bug fix) several Mac socket fixes (ingham)
+
+2000-04-24 (bug fix) fixed hang in threaded Unix case when backgrounded
+exec process was running (dejong)
+
+--- Released 8.3.1, April 26, 2000 --- See ChangeLog for details ---
+
+2000-04-26 (doc fix) updated/added documentation for many API's and
+commands (melski)
+
+2000-05-02 (feature enhancement) added support for joinable threads;
+extended API's for channels to allow channels to move between threads
+(kupries)
+
+2000-05-02 (feature enhancement) changed error return for procedures
+with incorrect args to be like the Tcl_WrongNumArgs API, with a "wrong
+# args: ..." message printed, with an args list (hobbs)
+
+2000-05-08 (feature enhancement) added [array statistics] command
+
+2000-05-08 (performance enhancement) rewrote Tcl_StringCaseMatch
+algorithm for better performance; this affects the [string match]
+command; added "eq" and "ne" operands to expr, for testing
+string equality and inequality (hobbs)
+
+2000-05-09 (feature enhancement) extended [lsearch] to support sorted
+list searches and typed list searches (melski)
+
+2000-05-10 (feature enhancement) added [namespace exists] command
+(darley)
+
+2000-05-18 (build enhancement) added support for mingw compile env and
+cross-compiling (dejong)
+
+2000-05-18 (bug fix) corrected clock grammar to properly handle the
+"ago" keyword when it follows multiple relative unit specifiers
+(melski)
+
+2000-05-22 (compile fix) type cast cleanups (dejong)
+
+2000-05-23 (performance enhancement) added byte-compiled
+implementation of [return] command and [string] command (melski)
+
+2000-05-26 (performance enhancement) extended byte-compiled [string]
+command with support for [string compare/index/match] (hobbs)
+
+2000-05-27 (feature enhancement) added ability to set [info script]
+return value ([info script ?newFileName?]) (welch)
+
+2000-05-31 (feature enhancement) added support for regexp and exact
+pattern matching for [array names] (gazetta)
+
+2000-05-31 (feature enhancement) added -nocomplain and -- flags to
+[unset] to allow for silent unset operation (hobbs)
+
+--- Released 8.4a1, June 6, 2000 --- See ChangeLog for details ---
+
+2000-05-29 (bug fix) corrected resource cleanup in http error cases.
+Improved handling of error cases in http. (tamhankar)
+
+2000-07 (feature rewrite) complete rewrite of the Tcl IO channel subsystem
+to correct problems (hangs, core dumps) with the initial stacked channel
+implementation. The new system has many more tests for robustness and
+scalability. There are new C APIs (see Tcl_CreateChannel), but only
+stacked channel drivers are affected (ie: TLS, Trf, iogt). The iogt
+extension has been added to the core test code to test the system.
+(hobbs, kupries)
+ **** POTENTIAL INCOMPATABILITY ****
+
+2000-07 (build improvements) cleanup of the makefiles and configure scripts
+to correct support for building under gcc for Windows. (dejong)
+
+2000-08-07 (bug fix) corrected sizeof error in Tcl_GetIndexFromObjStruct.
+(perkins)
+
+2000-08-07 (bug fix) correct off-by-one error in HistIndex, which was
+causing [history redo] to start its search at the wrong event index. (melski)
+
+2000-08-07 (bug fix) corrected setlocale calls for XIM support and locale
+issues in startup. (takahashi)
+
+2000-08-07 (bug fix) correct code to handle locale specific return values
+from strftime, if any. (wagner)
+
+2000-08-07 (bug fix) tweaked grammar to properly handle the "ago" keyword
+when it follows multiple relative unit specifiers, as in
+"2 days 2 hours ago". (melski)
+
+2000-08-07 (doc fixes) numerous doc fixes to correct SEE ALSO and NAME
+sections. (english)
+
+2000-08-07 (bug fix) new man pages memory.n, TCL_MEM_DEBUG.3, Init.3 and
+DumpActiveMemory.3. (melski)
+
+--- Released 8.3.2, August 9, 2000 --- See ChangeLog for details ---
+
+2000-06 thru 2000-11 (build improvements) Added support for mingw (gcc on
+Windows), AIX-5 and Win64 builds (dejong, hobbs)
+
+2000-06-23 (feature enhancement) ability to use Tcl_Obj *s as hash keys (duffin)
+
+2000-06-29 (new features) added [mcmax] and [mcmset] and extended [unknown] in
+msgcat package (duperval, krone, nelson)
+=> msgcat 1.1
+
+2000-08 thru 2000-09 added tclPlatDecls.h to default install (melski, hobbs)
+
+2000-08-24 (new feature) Enhanced trace syntax to add:
+ trace {add|remove|list} {variable|command} name ops command
+(darley, melski)
+
+2000-09-06 (cross-platform feature) Set ^Z (\32) as default EOF char. (hobbs)
+
+2000-09-07 partial fix for bug 2460 to prevent exec mem leak on Windows for the
+common case (gravereaux)
+
+2000-09-14 Improved string allocation growth for large strings (hintermayer,
+melski)
+
+2000-09-14 New non-panic'ing mem allocation functions Tcl_AttemptAlloc,
+Tcl_AttemptRealloc, Tcl_AttemptSetObjLength (melski)
+
+2000-09-20 (new features) completely new, enhanced syntax in tcltest package.
+Backwards compatable with tcltest v1. (hom)
+=> tcltest 2.0
+
+2000-09-27 (bug fix) fixed a bug introduced by a partial fix in 8.3.2 that
+didn't set nonBlocking correctly when resetting the flags for the write
+side (mem leak) Correct mem leak in channels when statePtr was released
+(hobbs)
+
+2000-09-29 (bug fix) corrected reporting of space parity on Windows (Eason)
+
+2000-10-06 (bug fix) corrected [file channels] to only return channels in
+the current interpreter (hobbs)
+
+2000-10-20 (performance enhancement) call stat only when necessary in 'glob' to
+speed up command significantly in base cases (hobbs)
+
+2000-10-27 Fixed mem leak in Tcl_CreateChannel. Re-purified core via test
+suites. (hobbs)
+
+2000-10-30 (new feature) add "ja_JP.eucJP" map to "euc-jp" encoding (takahashi)
+
+2000-11-01 (mem leak) Corrected excessive mem use of info exists on a
+non-existent array element (hobbs)
+
+2000-11-02 (bug fix) Corrected sharing of tclLibraryPath in threaded
+environment (gravereaux)
+
+2000-11-03 (new feature) Tcl_SetMainLoop enables defining an event loop for
+tclsh. This enables Tk as a truly loadable package. (hobbs)
+
+--- Released 8.4a2, November 3, 2000 --- See ChangeLog for details ---
+
+2000-09-27 (bug fix) fixed a bug introduced by a partial fix in 8.3.2 that
+didn't set nonBlocking correctly when resetting the flags for the write
+side (mem leak) Correct mem leak in channels when statePtr was released
+(hobbs)
+
+2000-09-29 (bug fix) corrected reporting of space parity on Windows (Eason)
+
+2000-10-06 (bug fix) corrected [file channels] to only return channels in
+the current interpreter (hobbs)
+
+2000-10-20 (performance enhancement) call stat only when necessary in 'glob' to
+speed up command significantly in base cases (hobbs)
+
+2000-11-01 (mem leak) Corrected excessive mem use of info exists on a
+non-existent array element (hobbs)
+
+2000-11-02 (bug fix) Corrected sharing of tclLibraryPath in threaded
+environment (gravereaux)
+
+2000-11-23 (mem leak) fixed potential memory leak in error case of lsort
+(fellows)
+
+2000-12-09 (feature enhancement) changed %o and %x to use strtoul instead
+of strtol to correctly preserve scan<>format conversion of large integers
+(hobbs)
+Fixed handling of {!<boolean>} in expressions (hobbs, fellows)
+
+2000-12-14 (feature enhancement) improved (s)rand for 64-bit platforms
+(porter)
+
+2001-01-04 (bug fix) corrected parsing of $tcl_libPath at startup on
+Windows (porter)
+
+2001-01-30 (bug fix) Fixed possible hangs in fcopy. (porter)
+
+2001-02-15 (performance enhancement) improved efficiency of [string split]
+(fellows)
+
+2001-03-13 (bug fix) Correctly possible memory corruption in string map {}
+$str (fellows)
+
+2001-03-29 (bug fix) prevent potential race condition and security leak in
+tmp filename creation on Unix. (max)
+Fixed handling of timeout for threads (corrects excessive CPU usage issue
+for Tk on Unix in threaded Tcl environment). (ruppert)
+
+2001-03-30 (bug fix) corrected Windows memory error on exit (wu)
+Fixed race condition in readability of socket on Windows.
+
+2001-04-03 (doc fixes) numerous doc corrections and clarifications.
+Update of READMEs.
+
+2001-04-04 (build improvements) redid Mac build structure (steffen)
+Corrected IRIX-5* configure (english). Added support for AIX-5 (hobbs).
+Added support for Win64 (hobbs).
+
+--- Released 8.3.3, April 6, 2001 --- See ChangeLog for details ---
+
+2000-11-23 (new feature)[TIP 7] higher resolution timer on Windows (kenny)
+
+2001-01-18 (new feature) Tcl_InitHashTableEx renamed to Tcl_InitCustomHashTable
+(kupries)
+
+2001-03-30 (new feature)[TIP 10] support for thread-aware/hot channels (kupries)
+
+2001-04-06 (new feature)[219280] auto-loading hidden in ::errorInfo (porter)
+
+2001-04-07 (bug fix)[406709] corrected panic when extra items left on the
+byte compiler execution stack (sofer)
+
+2001-04-09 (bug fix)[219136,232558] improved use of thread-safe functions in
+unix time commands (kenny)
+
+2001-04-24 (new feature)[TIP 27] started CONST-ification of the Tcl APIs (kenny)
+
+2001-05-03 (new feature) [auto_import] now matches patterns like
+[namespace import], not like [string match] (porter)
+ **** POTENTIAL INCOMPATABILITY ****
+
+2001-05-07 (new feature)[416643] distinct srand() seed per interp (sofer)
+
+2001-05-15 (new feature) new Tcl_GetUnicodeFromObj API (hobbs)
+
+2001-05-16 (performance enhancement) byte-compiled versions of [lappend],
+[append] simple cases (hobbs)
+
+2001-05-23 (new feature) added ISO-8859-15 and koi8-u encodings, updated other
+encoding tables based on http://www.unicode.org/Public/MAPPINGS/ (kuhn)
+
+2001-05-27 (new feature) updated to Unicode 3.1.0 data set (still using 16
+bits for Tcl_UniChar though) (hobbs)
+
+2001-05-30 (new feature)[TIP 15] Tcl_GetMathFuncInfo, Tcl_ListMathFuncs,
+Tcl_InfoObjCmd, InfoFunctionsCmd APIs (fellows)
+
+2001-06-08 (bug fix,feature enhancement)[219170,414936] all Tcl_Panic
+definitions brought into agreement (porter)
+
+2001-06-12 (bug fix)[219232] regexp returned non-matching sub-pairs to have
+index pair {-1 -1} (fellows)
+
+2001-06-27 (bug fix)[217987] corrected backslash substitution of non-ASCII
+characters. (hobbs, riefenstahl)
+
+2001-06-28 (bug fix)[231259] failure to re-compile after cmd shadowing (sofer)
+
+2001-07-02 (bug fix)[227512] corrected [concat] treatment of UTF-8 strings
+(hobbs, barras)
+
+2001-07-12 (new feature)[TIP 36] Tcl_SubstObj API (fellows)
+
+2001-07-16 (bug fix) corrected thread-enabled pipe closing on Windows
+(hobbs, jsmith)
+
+2001-07-18 (bug fix)[427196] corrected memory overwrite error when buffer size
+of a channel is changed after channel use has already begun (kupries, porter)
+
+2001-07-31 (new feature)[TIP 17] TclFS* APIs provide new virtual file
+system. This includes the addition of 'file normalize', 'file system',
+'file separator' and 'glob -tails' (darley)
+
+2001-08-06 (bug fix) removed use of tmpnam in TclpCreateTempFile on Unix (lim)
+
+ * improved build support for IRIX, GNU HURD, Mac OS 9 and OS X
+
+ * configure scripts revamped for better support of cygwin and gcc on
+ Windows (mdejong)
+
+ * corrected several minor errors noted by Purify (hobbs)
+
+--- Released 8.4a3, August 6, 2001 --- See ChangeLog for details ---
+
+2001-06-27 (bug fix)[217987] corrected backslash substitution of non-ASCII
+characters. (hobbs, riefenstahl)
+
+2001-06-28 (bug fix)[231259] failure to re-compile after cmd shadowing (sofer)
+
+2001-07-02 (bug fix)[227512] corrected [concat] treatment of UTF-8 strings
+(hobbs, barras)
+
+2001-07-16 (bug fix) corrected thread-enabled pipe closing on Windows
+(hobbs, jsmith)
+
+2001-07-18 (bug fix)[427196] corrected memory overwrite error when buffer size
+of a channel is changed after channel use has already begun (kupries, porter)
+
+2001-08-06 (bug fix)[442665] corrected object reference counting in [gets]
+(jikamens)
+
+2001-08-06 (new feature) added GNU (HURD) configuration target. (brinkmann)
+
+2001-08-07 (bug fix)[406709] corrected panic when extra items left on the
+byte compiler execution stack (see test foreach-5.5) (sofer, tallneil, jstrot)
+
+2001-08-08 (new features) updated packages msgcat 1.1.1, opt 0.4.3,
+tcltest 1.0.1, dependencies checked (porter)
+
+2001-08-20 (new feature)[452217] http 2.3.2: include port number in Host: header
+to comply with HTTP/1.1 spec (RFC 2068) (hobbs, tils)
+
+2001-08-23 (new feature) added QNX-6 build support (loverso)
+
+2001-08-23 (bug fix) corrected handling of spaces in path name passed to
+[exec] on Windows (kenpoole)
+
+2001-08-24 (bug fix) corrected [package forget] stopping on non-existent
+package (porter)
+
+2001-08-24 (bug fix) corrected construction of script library search path
+relative to executable (porter)
+
+2001-08-24 (bug fix) [auto_import] now matches patterns like
+[namespace import], not like [string match] (porter)
+ **** POTENTIAL INCOMPATABILITY ****
+
+2001-08-27 (new feature) added Tcl_SetMainLoop() to enable loading Tk as a
+true package (hobbs)
+
+2001-08-30 (bug fix) build support for Crays (andreasen)
+
+2001-09-01 (bug fix) rewrite of Tcl_Async* APIs to better manage thread
+cleanup (gravereaux)
+
+2001-09-06 (new feature) http 2.4: honor the Content-encoding and charset
+parameters; add -binary switch for forcing the issue (hobbs, saoukhi, orwell)
+=> http 2.4
+
+2001-09-06 (performance enhancement) rewrite of file I/O flush management on
+Windows. Approximately 100x speedup for some operations. (kupries, traum)
+
+2001-09-10 (bug fix) corrected finalization error in TclInExit (darley)
+
+2001-09-10 (bug fix) protect against alias loops (hobbs)
+
+2001-09-12 (bug fix) added missing #include in tclLoadShl.c (techentin)
+
+2001-09-12 (bug fix) script library path construction on Windows no longer
+uses registry, nor adds the current working directory to the path (porter)
+
+2001-09-12 (bug fix) correct bugs in compatibility strtod() (porter)
+
+2001-09-13 (bug fix) Tcl_UtfPrev now returns the proper location when the
+middle of a UTF-8 byte is passed in (hobbs)
+
+2001-09-19 (bug fix) [format] and [scan] corrected for 64-bit machines (rmax)
+
+2001-09-19 (new feature) --enable-64-bit support for HP-11. (hobbs)
+
+2001-09-19 (new feature) native memory allocator now default on Windows
+(hobbs)
+
+2001-09-20 (new feature) WIN64 support and extra processor definitions
+(hobbs, mstacy)
+
+2001-09-26 (bug fix) corrected potential deadlock in channels that do not
+provide a BlockModeProc (kupries, kogorman)
+
+2001-10-03 (new feature) WIN64 build support (hobbs)
+
+2001-10-03 (bug fix) correction in thread finalization (rbrunner)
+
+2001-10-04 (new feature) updated encodings with latest mappings from
+www.unicode.org (hobbs)
+
+2001-10-11 (bug fix) corrected cleanup of self-referential bytecodes at
+interpreter deletion (sofer, rbrunner)
+
+2001-10-16 (new feature) config support for MacOSX / Darwin (steffen)
+
+2001-10-16 (new feature, Mac) change in binary extension format from MachO
+bundles to standard .dylib dynamic libraries like on other unices.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2001-10-18 (bug fix) corrected off-by-one-day error in clock scan with
+relative months and years during swing hours. (lavana)
+
+--- Released 8.3.4, October 19, 2001 --- See ChangeLog for details ---
+
+2001-08-21 (bug fix)[219184] overagressive compilation of [catch] (sofer)
+
+2001-08-22 (new feature)[227482] [dde request -binary] (hobbs)
+=> dde 1.2
+
+2001-08-30 (performance enhancement)[456668] fully qualified command names use
+cached Command for all namespaces, avoiding repeated lookups (sofer)
+
+2001-08-31 (performance enhancement) bytecompiled [list] (hobbs)
+
+2001-09-02 (bug fix)[403553] Add -Zl to VC++ compile line for tclStubLib to
+avoid any specific C-runtime library dependence. (gravereaux)
+
+2001-09-05 (new feature) restored support for Borland compiler (gravereaux)
+
+2001-09-05 (new feature)[TIP 49] Tcl_OutputBuffered API (schroedter, fellows)
+
+2001-09-07 (new feature) restored VC++ 5.0 compatibility (gravereaux)
+
+2001-09-10 (performance enhancement)[TIP 53,451441] [proc foo args {}] now
+compiles to 0 bytecodes (sofer)
+
+2001-09-13 (new feature)[TIP 56] Tcl_EvalTokensStandard API (sofer)
+
+2001-09-13 (new feature) Old ChangeLog entries => ChangeLog.1999 (hobbs)
+
+2001-09-17 (new feature) compiling with TCL_COMPILE_DEBUG now required to
+enable all compile and execution tracing (sofer)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2001-09-19 (bug fix)[411825] made TclNeedSpace UTF-8 aware (fellows)
+
+2001-09-19 (bug fix)[219166] overagressive compilation of "quoted" bodies of
+[for], [foreach], [if], and [while] (sofer)
+
+2001-09-19 (performance enhancement) bytecompiled [string match] (hobbs)
+
+2001-10-15 (new feature)[TIP 35] serial channel configuration: Win (schroedter)
+
+2001-11-06 (bug fix)[478856] loss of fileevents due to short reads (kupries)
+
+2001-11-06 (new feature) revitalized makefile.vc (gravereaux)
+
+2001-11-07 (new feature) Cygwin gcc support dropped. Use mingw (dejong)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2001-11-07 (new feature) Support --include-dir= and --libdir= options to
+configure. Store in tclConfig.sh as TCL_INCLUDE_SPEC and TCL_LIB_SPEC.
+(dejong)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2001-11-08 (new feature) Enable --enable-threads on FreeBSD (dejong)
+
+2001-11-08 (new feature) New make target 'make gdb' (dejong)
+
+2001-11-09 (bug fix)[480176] [global] mishandled varnames matching :* (porter)
+
+2001-11-12 (new feature)[TIP 22,33,45] new command [lset],
+[lindex] extended to accept multiple indices. (kenny, hobbs)
+
+2001-11-16 (new feature) new configure option --enable-langinfo=no.
+By default, nl_langinfo() is used on Unix to determine system encoding.
+Tcl's built-in system is used only if that fails, or configured with
+--enable-langinfo=no. (hobbs, wagner)
+
+2001-11-19 (new feature)[TIP 62] A Tcl_VarTraceProc can now return Tcl_Obj *
+or a dynamic string as well as a static string to indicate an error (fellows)
+
+2001-11-19 (new feature)[TIP 73] Tcl_GetTime API (kenny)
+
+2001-11-19 (bug fix)[478847] overflows in [time] of >2**31 microseconds (kenny)
+
+2001-11-29 (performance enhancement) caching scheme added to [binary scan]
+(fellows)
+
+2001-12-05 (new feature) new algorithm for [array get] adds safety when read
+traces modify the array. (sofer)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2001-12-10 (bug fix)[490514] doc fixes (porter,english)
+
+2001-12-18 (new feature) removed unix/dltest/configure; unix/configure does
+all (dejong)
+
+2001-12-19 (new feature) New make target 'make shell' (dejong)
+
+2001-12-21 (new feature) MaxOSX / Darwin support (steffen)
+
+2001-12-28 (new feature) new command [memory onexit] replaces [checkmem] when
+compiled with TCL_MEM_DEBUG. Added documentation. (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2001-12-28 (bug fix) proper case in [auto_execok] use of $env(COMPSPEC) (hobbs)
+
+2002-01-05 (feature rewrite) Tcl_Main() rewritten and documentation improved.
+Interactive operation and event loop operation (via Tcl_SetMainLoop) now
+interleave cleanly. Also more robust against strange happenings. (porter)
+
+2002-01-17 (bug fix)[504642] Tcl_Obj refCounts in [gets] (griffen,kupries)
+
+2002-01-21 (bug fix)[506297] infinite loop writing in iso2022-jap encoding
+(forssen,kupries)
+
+2002-01-24 (HTTP server bug workaround)[504508] leave the default port out
+of the Host: header value
+=> http 2.4.1 (hobbs)
+
+2002-01-25 (new feature)[496733] socket options -eofchar and -translation
+return read-only values (dejong)
+
+2002-01-28 (new feature) Old ChangeLog entries => ChangeLog.20900 (hobbs)
+
+2002-01-28 (performance enhancement) bytecompiled [regexp] for trivial cases
+that amount to string matching. Also -nocase and --. (hobbs)
+
+2002-02-05 (bug fix) [http::error] called when [::error] intended
+=> http 2.4.2 (porter)
+
+2002-02-05 (bug fix)[465765] avoid zero-byte writes to STREAMs
+(talcott,kupries)
+
+2002-02-06 (performance enhancement) [regsub] special cases that map to
+[string map] detected. (hobbs)
+
+2002-02-06 (bug fix)[495213] [scan] accept 0x as prefix of base 16 value
+(hobbs)
+
+2002-02-10 (new feature)[TIP 32,79] Tcl_CreateObjTrace API (kenny)
+
+2002-02-12 (new feature) partial support for DJGPP Tcl on DOS (gravereaux)
+
+2002-02-14 (mem leak) Fixed leaking an empty Tcl_Obj when [gets $chan]
+errored out. (kupries, sofer)
+
+2002-02-15 (new feature)[TIP 72] support for 64-bit integer values on
+32-bit platforms and ability to work with >2GiB files. Extends many
+commands. See ChangeLog and TIP for details.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-02-22 (bug fix)[476537] Fix panic when loading shared library without
+proper use of stubs on platform without backlinking (porter)
+
+2002-02-22 (new feature) 64-bit support for xlc compiler on AIX-4 (hobbs)
+
+2002-02-22 (new feature)[521560] Removed limits on filename length and
+format [source]able through the Safe Base (hobbs)
+
+2002-02-22 (performance enhancement) optimized bytecodes for [if], [for],
+[while] and constant conditions (sofer)
+
+2002-02-22 (new feature)[TIP 76] [regsub] can now return result (fellows)
+
+2002-02-25 (bug fix)[495207] buffer overrun when closing ] left out of
+argument to [subst] (sofer, english)
+
+2002-02-25 (bug fix)[514392] [load] updated for Mac OS X 10.1 (steffen)
+
+2002-02-26 (bug fix) [info hostname] choked on names >31 characters (hobbs)
+
+2002-02-26 (new feature)[TIP 35] serial channel configuration: Unix
+(schroedter, hobbs)
+
+2002-02-25 (bug fix)[483575] [fconfigure ... -error] now no-op on Mac (kupries)
+
+2002-02-28 (performance enhancement)[458872] fully qualified command names use
+cached Command for all namespaces, avoiding repeated lookups (sofer)
+
+ * (new feature)[TIP 27] completed CONST-ification of TCL APIs.
+Added compiler macro USE_NON_CONST to keep using those old API prototypes
+that present irreconcilable source incompatibilities with header files
+of prior Tcl releases. Others will need to be reconciled.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-03-04 (bug fix)[474358, 218099, 219314, 524674] fixed several problems
+related to the handling of iso2022 text and finalization of escape-based
+encodings. (taguchi, takahashi, hobbs)
+
+--- Released 8.4a4, March 5, 2002 --- See ChangeLog for details ---
+
+2002-03-06 (new feature)[TIP 80] expanded [lsearch] options (wilkason, fellows)
+
+2002-03-07 (new feature)[TIP 87] [interp recursionlimit] (trier)
+
+2002-03-08 (platform feature) mingw 1.1 build favored (dejong)
+
+2002-03-20 (new feature)[TIP 27] CONST-ified variable access functions (porter)
+
+2002-03-24 (bug fix)[511666,511658,523217,530960] expanded
+Tcl_FSMatchInDirectory to handle assorted [glob] bugs in VFS. (darley)
+ *** POTENTIAL INCOMPATIBILITY with prior 8.4a releases ***
+
+2002-03-25 (bug fix)[495726] stopped tcltest disabling of auto-loading (porter)
+
+2002-03-25 (bug fix)[495977] allow \n in test constraints (porter)
+
+2002-03-27 (platform support)[527941,533862] VC/winhelp/W9X (spjuth,
+gravereaux)
+
+2002-03-28 (bug fix)[219181] exception at level 0 issues (sofer)
+
+2002-03-28 (bug fix)[219362] command termination; Tcl_CreateTrace (knoll,sofer)
+
+2002-04-05 (bug fix)[536879] exceptions during variable subst (porter)
+
+2002-04-15 (bug fix)[497446,513983] tcltest syntax errors now raised (porter)
+ ***POTENTIAL INCOMPATIBILITY with prior tcltest 2.0.* (8.4aX)***
+
+2002-04-17 (bug fix)[495660] [(save|restore)state] deprecated (porter)
+
+2002-04-17 (bug fix)[526524] escape-based encodings corrected (yamamoto, hobbs)
+
+2002-04-18 (bug fix)[542588] [expr] error msgs improved (ehrens, sofer)
+
+2002-04-18 (bug fix)[545325] [info level $level] now returns [namespace eval]
+as documented (suchenwirth,sofer)
+
+2002-04-19 (bug fix)[544727] export [mcload]; ns context of [mcmax] (porter)
+=> msgcat 1.2.3
+
+2002-04-22 (performance enhancement) threaded memory allocator (AOL, hobbs)
+
+2002-04-24 (new feature) TCLTK_NO_LIBRARY_TEXT_RESOURCES #define disables
+inclusion of tcl library code in resource fork on Mac. (steffen)
+
+2002-05-21 (platform support) static libs on OSF (dejong)
+
+2002-05-24 (bug fix)[557878] set encoding on listening socket (staplin,
+kupries)
+
+2002-05-24 (new feature)[TIP 91] Tcl_Seek compatibility (fellows)
+
+2002-05-28 (bug fix)[545579] VFS [load] left temp file (darley)
+
+2002-05-28 (bug fix)[559376] plug timezone env leak on Windows (hobbs)
+
+2002-05-29 (performance enhancement) [string compare] optimized (hobbs,fellows)
+
+2002-05-31 (bug fix)[550534] plug interp leak in [pkg_mkIndex] (helmut)
+
+2002-05-31 (dead code)[474335,555635] removed all use of matherr() (english)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-06-04 (new feature)[TIP 85,521362] custom result match in tcltest
+(markus, porter)
+=> tcltest 2.1
+
+2002-06-06 (bug fix)[524352] encoding, threading, and environment issues on
+MacOSX (steffen)
+
+2002-06-06 (bug fix)[512214,558742,512214,461000] lazy initialization of
+tcltest constraints (porter)
+
+2002-06-07 (bug fix)[563122,564595] EOVERFLOW definitions (fellows)
+
+2002-06-11 (bug fix)[567386] [info locals] corrections (sofer)
+
+2002-06-14 (new feature)[TIP 102] [trace list] renamed [trace info] (fellows)
+
+2002-06-17 (new feature)[525522,525525] msgcat support for XPG4 locales;
+examination of LC_ALL, LC_MESSAGES environment variables (haible, porter)
+=> msgcat 1.3
+
+2002-06-17 (new feature)[565088] header files assume modern C compiler by
+default; older compilers may need configuration (english)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-06-17 (bug fix)[554068] [exec] argument quoting on Windows (darley)
+
+2002-06-17 (new feature)[TIP 62,462580] command execution traces (lavana)
+
+2002-06-19 (bug fix)[558324] regexp sets a linked variable (watson)
+
+ * (performance enhancment) optimizations of bytecode execution (sofer)
+
+2002-06-21 (new feature)[TIP 99,562970] new [file link] command (darley)
+
+2002-06-24 (new feature)[TIP 101] new [tcltest::configure] command (porter)
+=> tcltest 2.2
+
+2002-06-25 (new feature) --enable-man-symlinks and --enable-man-compression
+options to configure (max)
+
+2002-06-26 (bug fix)[565880] [clock format] now respects locale (max)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-07-03 (bug fix)[577015] [catch] catches even compile errors (sofer)
+
+--- Released 8.4b1, July 5, 2002 --- See ChangeLog for details ---
+
+2002-07-08 (bug fix) restored compatibility of [viewFile] in tcltest (porter)
+
+2002-07-11 (bug fix) [file normalize] returns long form on Win 95/98/ME (darley)
+
+2002-07-15 (performance enhancment) variable operations rewritten to store
+ and use cached Var pointers (sofer)
+
+2002-07-22 (bug fix)[218000] Inf and Nan are floating-point values (fellows)
+
+2002-07-23 (platform support)[219220] 64-bit compile on IRIX (dejong)
+
+2002-07-25 (bug fix)[219218] return codes in background errors (english)
+
+2002-07-28 (bug fix)[582522] alias fires exec traces (sofer)
+
+2002-07-29 (bug fix)[578363] regexp (fellows,pvgoran)
+
+2002-07-30 (bug fix)[584603] WriteChars infinite loop non-UTF-8 string (kupries)
+
+2002-08-04 (new feature)[584051,580433,585105,582429][TIP 27] Tcl interfaces
+ are now fully CONST-ified. Use the symbols USE_NON_CONST or
+ USE_COMPAT_CONST to select interfaces with fewer changes.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-08-05 (bug fix)[589859] tcltest setup and cleanup scripts skipped when
+ test body is skipped (porter)
+ => tcltest 2.2
+
+2002-08-07 (bug fix)[587488] mem leak with USE_THREAD_ALLOC (sofer,sass)
+
+2002-08-07 (feature enhancement)[584794,584650,472576] boolean values
+ are no longer always re-parsed from string. (sofer)
+
+Many internal bugs fixed.
+Considerable cleanup of the test suite.
+
+--- Released 8.4b2, August 9, 2002 --- See ChangeLog for details ---
+
+2002-08-20 (new feature) --enable-memdebug configure option (kupries)
+
+2002-08-23 (bug fix)[597936] mem leak with USE_THREAD_ALLOC (sofer,zoran)
+
+2002-08-26 (bug fix)[599788] segfault in compiler (sofer,wilkason)
+
+2002-08-28 (bug fix)[414910] avoid mem leaks accessing environment variables
+ on Windows (welton,gravereaux)
+
+2002-08-31 (platform support)[TIP 108] Mac OS X port (steffen,ingham)
+
+2002-09-02 (platfrom support) 64-bit compile on HP-11 (martin)
+
+--- Released 8.4.0, September 10, 2002 --- See ChangeLog for details ---
+
+2002-09-18 (platform support) Updated support for compiling with Cygwin and
+either mingw or gcc. (khan, howell, dejong)
+
+2002-09-22 (bug fix)[612786, 611922] Corrected [puts -nonewline] within
+test bodies. Also corrected reporting of body return code. Updated tcltest
+to v2.2.1.
+
+2002-09-24 (bug fix)[613117] More robust 64-bit wide integer value
+detection (fellows)
+
+2002-09-26 (bug fix) correct overeager optimization of noop proc to handle
+the precompiled case. (sofer, hobbs)
+
+2002-09-26 (bug fix)[615115] removed extraneous spaces in koi8-u.enc that
+confused encoding reader.
+
+2002-09-29 (bug fix)[219355] Added proper exiting conditions using Win32
+console signals. This handles the existing lack of a Ctrl+C exit to call
+exit handlers when built for thread support. Also, properly handles exits
+from other conditions such as CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, and
+CTRL_SHUTDOWN_EVENT signals. In all cases, exit handlers will be called.
+(gravereaux)
+
+2002-09-30 (bug fix) improve the checking for bad regular expressions
+during regexp compilation. Resultant compiles were correct, but much
+slower than necessary. (hobbs)
+
+2002-10-01 (bug fix) fix precompiled locals to support 8.3 precompiled
+code. (hobbs)
+
+2002-10-09 (bug fix)[620735] Added code to set an exit handler on Windows
+that terminates the thread that calibrates the performance counter, so that
+the thread won't outlive unloading the Tcl DLL. (kenny)
+
+2002-10-09 (build support) all --enable-symbols to take the enhanced
+options yes|no|mem|compile|all. (hobbs)
+
+2002-10-10 (build support) enable USE_THREAD_ALLOC (new threaded allocator)
+by default on Windows. (hobbs, gravereaux)
+
+2002-10-14 (bug fix)[623269] correct possible mem leak in
+Tcl_PutEnv. (brouwers)
+
+2002-10-15 (bug fix)[615043] fix in execution traces with idle tasks
+firing. (lavana)
+
+2002-10-15 (platform support) Correct AIX-5 ppc and 4/5 64-bit build flags.
+Correct HP 11 64-bit gcc building. (martin, hobbs)
+
+2002-10-17 (bug fix)[624755] Fixed code that check for proper # of args to
+[array names] (porter)
+
+2002-10-18 (feature enhancement)[625453] Added support for broadcasting
+changes to the registry Environment on Windows. Updated registry package
+to v1.1. (hobbs)
+
+2002-10-22 (platform support)[624509] On macosx, add embedded framework
+dirs to tcl_pkgPath: @executable_path/../Frameworks and
+@executable_path/../PrivateFrameworks (if they exist), as well as the dirs
+in DYLD_FRAMEWORK_PATH (if set). (steffen)
+
+--- Released 8.4.1, October 22, 2002 --- See ChangeLog for details ---
+
+2002-10-28 (bug fix)[627660] [package unknown] chaining for platform specifics
+
+2002-10-29 (bug fix)[627546] verbose [load] (dyld) error mesages on MacOSX
+
+2002-11-01 (bug fix) [package provide registry] consistent versions.
+
+2002-11-06 (bug fix)[582039] missing ar program -> configuration error
+
+2002-11-06 (feature enhancement) added new TclInThreadExit function to
+test for thread exit vs whole process exit condition. The TclInExit
+function now correctly returns 1 during Tcl_Finalize processing.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-11-13 (bug fix)[615043] some execution traces were not firing
+
+2002-11-18 (bug fix)[634856] multiple signs no longer accepted as valid integer
+[string is integer ++1] => 0
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2002-11-26 (bug fix)[593810,597924] clean exit of channel worker threads on Win
+
+2002-11-28 (new feature) `make valgrind` target
+
+2002-12-03 (bug fix)[615304] repeated load/unload of Tcl now possible
+
+2002-12-11 (bug fix)[647307] negative return codes now propagated by procs
+
+2002-12-11 (bug fix)[648441] syntax error in [expr 0x] now detected.
+
+2003-01-07 (bug fix)[633204] [catch {return}] => 2 (not 0)
+
+2003-01-09 (bug fix)[634151] [file (a|m)time $nonASCIIpath $time] now works
+
+2003-01-16 (bug fix) dde eval with {} service name does not crash.
+=> dde 1.2.1
+
+2003-01-16 (bug fix)[635200,655645,615043,571385] many command trace fixes
+
+2003-01-31 (bug fix)[675614,678415,676978] tcltest conflicts in cleanup
+and -outfile; also failure in space-containing path; also missing [close]
+=> tcltest 2.2.2
+
+2003-02-01 (bug fix)[670042] corrected [info loaded {}] for static
+packages in multiple interps.
+
+2003-02-01 (bug fix)[675356] [clock clicks {}]; [clock clicks -] - syntax errs
+
+2003-02-01 (bug fix)[656660] MT-safety for [clock format]
+
+2003-02-03 (bug fix)[651271] command rename traces get fully-qualified names
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2003-02-07 (performance improvement) [glob] on Windows is 2.5 times faster
+
+2003-02-07 (feature change) lack of Cygwin support indicated by config error
+
+2003-02-11 (bug fix)[684744] [info complete] stopped by \x00
+
+2003-02-11 (bug fix)[685445] [glob -types l] missed broken symlinks on Unix
+
+2003-02-11 (bug fix) [lsearch -regexp $a $a] doesn't crash
+
+2003-02-13 (bug fix)[685926] accept non-ASCII7 for tcl_platform(user) on Win
+
+2003-02-15 (bug fix)[673714] stop crash when Tcl_DeleteEvents deletes last
+
+2003-02-15 (bug fix)[681841] parser missed some missing ] syntax errors
+
+2003-02-17 (bug fix)[684756] memory leak during command rename plugged
+
+2003-02-18 (bug fix)[689100] reduced per-thread memory overhead
+
+2003-02-18 (platform support)[651811] use xnet library on HP 11 (64 bit).
+
+2003-02-20 (bug fix)[Patch 689341] correct jis round-trip encoding
+
+2003-02-20 (bug fix)[689835] stop MacOSX hang trying to read a write-only pipe
+
+2003-02-07 (performance improvement) [tclPkgUnknown]: fewer vfs calls
+
+2003-02-18 (platform support) cut and splice procs for file channels on Mac
+
+2003-02-21 (bug fix)[690774] [binary scan] failed on some wide ints
+
+2003-02-22 (bug fix)[571002] plugged data leak during thread exit
+
+2003-02-25 (feature change) [pkg_mkIndex -load]: case-insensitive match
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2003-02-27 (bug fix)[694232] stop [lsearch -start 0 {} x] segfault
+
+--- Released 8.4.2, March 3, 2003 --- See ChangeLog for details ---
+
+2003-03-06 (bug fix)[699042] Correct case-insensitive unicode string
+comparison in Tcl_UniCharNcasecmp
+
+2003-03-11 (bug fix) Corrected loading of tclpip8x.dll on Win9x
+
+2003-03-12 (bug fix)[702383] Corrected parsing of interp create --
+
+2003-03-12 (bug fix)[685106] Correct Tcl_SubstObj handling of \x00 bytes
+
+2003-03-14 (bug fix)[702622 699060] Correct wide int issues in 'format'
+
+2003-03-14 (bug fix)[698146] Remove assumption that file times and longs
+are the same size.
+
+2003-03-18 (bug fix)[697862] Allow Tcl to differentiate between reparse
+points which are symlinks and mounted drives on Windows
+
+2003-03-19 (bug fix)[705406] Bad command count on TCL_OUT_LINE_COMPILE
+
+2003-03-20 (bug fix)[707174] Store pointers to notifier funcs in a struct
+to work around some platform linker issues
+
+2003-03-22 (bug fix)[708218] Load correct (non-)debug dll for dde or
+registry
+
+2003-03-24 (bug fix)[631741 696893] Fixing ObjMakeUpvar's lookup algorithm
+for the created local variable
+
+2003-04-07 (bug fix)[713562] Make sure that tclWideIntType is defined and
+somewhat sensible everywhere
+
+2003-04-07 (bug fix)[711371] Corrected string limits of arguments
+interpolated in error messages for 'if'
+
+2003-04-11 (bug fix)[718878] Corrected inconsistent results of
+[string is integer] observed on systems where sizeof(long) != sizeof(int)
+
+2003-04-12 (bug fix) Substantial changes to the Windows clock synch
+phase-locked loop in a quest for improved loop stability
+
+2003-04-16 [713562] Made changes so that the "wideInt" Tcl_ObjType is
+defined on all platforms, even those where TCL_WIDE_INT_IS_LONG is defined.
+Also made the Tcl_Value struct have a wideValue field on all platforms.
+Potential incompatibility for TCL_WIDE_INT_IS_LONG platforms because that
+struct changes size.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2003-04-25 (bug fix)[727271] Catch any errors returned by the Windows
+functions handling TLS ASAP instead of waiting to get some mysterious crash
+later on due to bogus pointers.
+
+2003-04-29 (bug fix) Correct 'glob -path {[tcl]} *', where leading
+special character instead lists files in '/'. Bug only occurs on Windows
+where '\' is also a directory separator.
+
+2003-05-09 (bug fix)[731754] Fixed memory leak in threaded allocator on
+Windows caused by treating cachePtr as a TLS index
+
+2003-05-10 (bug fix)[710642] Ensure cd is thread-safe
+
+2003-05-10 (bug fix)[718002] Correct mem leak on closing a Windows serial
+port
+
+2003-05-10 (bug fix)[714106] Prevent string repeat crash when overflow
+sizes were given (throws error).
+
+2003-05-13 (feature enhancement)[736774] Use new versioned bundle resource
+API to get tcl runtime library for TCL_VERSION on Mac OS X.
+
+2003-05-13 (bug fix)[711232] Worked around the issue of realpath() not
+being thread-safe on Mac OS X by defining NO_REALPATH for threaded builds
+on Mac OS X.
+
+2003-05-14 (bug fix)[557030] Correct handling of the gb2312 encoding by
+making it an alias of the euc-cn encoding and creating a gb2312-raw
+encoding for the original. Most uses of gb2312 really mean euc-cn.
+
+2003-05-14 (bug fix)[736421] Corrected another putenv() copy behavior
+problem when compiling on Windows and using Microsoft's runtime.
+
+--- Released 8.4.3, May 20, 2003 --- See ChangeLog for details ---
+
+2003-05-23 (bug fix)[726018] reverted internals change to the
+'cmdName' Tcl_ObjType that broke several extensions (TclBlend, e4graph...)
+in the 8.4.3 release.
+
+2003-06-10 (bug fix)[495830] stop eval of bytecode in deleted interp.
+
+2003-06-17 (bug fix) corrections to regexp when matching emtpy string.
+
+2003-06-25 (bug fix)[748957] -*ieee compiler flags for Tru64 builds.
+
+2003-07-11 (bug fix) [pkg_mkIndex] indexes provided packages, not indexed ones.
+
+2003-07-15 (feature enhancement) MacOSX build system rewrite.
+
+2003-07-15 (bug fix)[771613] corrected segfault in [if] (buffer overflow)
+
+2003-07-16 (bug fix)[756791] corrected assumption that Tcl_Free == free
+
+2003-07-16 (feature enhancement) -DTCL_UTF_MAX=6 compile option forces
+internal UCS-4 representation of Unicode (default is recommended UCS-2).
+
+2003-07-16 (bug fix)[767578] 64-bit corrections in thread notifier.
+
+2003-07-16 (bug fix)[759607] Safe Base tests normalized paths.
+
+2003-07-16 (feature enhancement)[Patch 679315] improved Cygwin path support
+
+2003-07-18 (bug fix)[706359] corrected broken -output option of [tcltest::test]
+=> tcltest 2.4.4
+
+2003-07-18 (bug fix)[753315] MT-safety of VFS records.
+
+2003-07-18 (bug fix)[759888] support for user:pass in URL by [http::geturl]
+=> http 2.4.4
+
+Improved documentation, new tests, and some code cleanup.
+[655300, 720634, 735364, 748700, 756112, 756744, 756951, 758488, 760768,
+763312, 769895, 771539, 771840, 771947, 771949, 772333]
+
+--- Released 8.4.4, July 22, 2003 --- See ChangeLog for details ---
+
+2003-07-23 (bug fix)[775976] fix registry compilation for VC7.
+
+2003-08-05 (enhancement)[781585] Use Tcl_ResetResult in bytecodes to
+prevent potential costly Tcl_Obj duplication.
+
+2003-08-06 (bug fix)[781609] prevent non-Windows platforms from trying to
+use the registry package inside msgcat.
+
+2003-08-27 (bug fix)[411825] Fix TclNeedSpace to handle non-breaking space
+(\u00A0) and backslash escapes correctly.
+
+2003-09-01 (bug fix)[788780] Fix thread-safety issues in filesystem records.
+
+2003-09-19 (bug fix)[804681] Protect ::errorInfo and ::errorCode traces
+from corrupting stack.
+
+2003-09-23 (bug fix)[218871] Fix handling of glob-sensitive chars in
+auto_load and auto_import.
+
+2003-10-03 (bug fix)[811483] Fixed refcount management for command and
+execution traces.
+
+2003-10-04 (bug fix)[789040] Fixed exec command.com error for Win9x.
+
+2003-10-06 (bug fix)[767834, 813273] Fixed volumerelative file
+normalization and 'file join' inconsistencies.
+
+2003-10-08 (bug fix)[769812] Fix Tcl_NumUtfChars string length calculation
+when negative parameter is given.
+
+2003-10-22 (bug fix)[800106] Handle VFS mountpoints inside glob'd dirs.
+
+2003-10-22 (bug fix)[599468] Watch for FD_CLOSE too on Windows when
+asked for writable events by the generic layer.
+
+2003-10-23 (bug fix)[813606] Detect OS X pipes correctly.
+
+2003-11-05 (bug fix)[832657] Allow .. in libpath initialization.
+
+2003-11-11 (bug fix) Improve AIX-64 build configuration.
+
+2003-11-17 (bug fix)[230589, 504785, 505048, 703709, 840258] fixes to
+various odd regexp "can't happen" bugs.
+
+--- Released 8.4.5, November 20, 2003 --- See ChangeLog for details ---
+
+2003-12-02 (bug fix)[851747] object sharing fix in [binary scan]
+
+2003-12-09 (platform support)[852369] update errno usage for recent glibc
+
+2003-12-12 (bug fix)[858937] fix for [file normalize ~nobody]
+
+2003-12-17 (bug fix)[839519] fixed two memory leaks (vasiljevic)
+
+2004-01-09 (bug fix)[873311] fixed infinite loop in TclFinalizeFilesystem
+
+2004-02-02 (bug fix)[405995] Tcl_Ungets buffer filling fix
+
+2004-02-04 (bug fix)[833910] tcltest command line option parsing error
+=> tcltest 2.4.5
+
+2004-02-04 (bug fix)[833637] code error in tcltest -preservecore operation
+
+2004-02-12 (feature enhancement) update HP-11 build libs setup
+
+2004-02-17 (bug fix)[849514,859251] corrected [file normailze] of $link/..
+
+2004-02-17 (bug fix)[772288] Unix std channels forced to exist at startup.
+
+2004-02-17 (new default) tcltest::configure -verbose {body error}
+
+2004-02-19 (bug fix) init.tcl search path with unusual --libdir (samson)
+
+2004-02-25 (bug fix)[554068] stopped broken [exec] quoting of { (gravereaux)
+
+2004-02-25 (bug fix)[888777] plugged memory leak with long host names (cassoff)
+
+2004-03-01 (bug fix)[462580] corrected level interpretation of Tcl_CreateTrace
+
+2004-03-01 (platform support)[218561] Allow 64-bit configure on IRIX64-6.5*
+
+--- Released 8.4.6, March 1, 2004 --- See ChangeLog for details ---
+
+Changes to 8.5a1 include all changes to the 8.4 line through 8.4.6,
+plus the following, which focuses on the high-level feature changes
+in this changeset (new minor version) rather than bug fixes:
+
+ * refactored IO code to split FS path code into generic/tclPathObj.c
+ and generic/tclFileSystem.h
+
+ * refactored trace code into generic/tclTrace.c
+
+ * configure scripts now require autoconf 2.57 for regeneration
+
+ * updated runtime library scripts to use newer Tcl code features
+ (like replacing regsub with string map)
+
+ * improve robustness of tcltest test suite across environments
+
+ * changed the bytecode evaluation-stack addressing mode, from array-style
+ to pointer-style; the catch stack and evaluation stack are now
+ contiguous in memory
+
+ * switch command is now byte-compiled
+
+ * enhanced checking in 'file' command for Windows NT file permissions
+
+ * [TIP #57] new 'lassign' command (adopted from TclX)
+
+ * [TIP #75] switch -regexp now provides submatch info
+
+ * [TIP #90] extended 'catch' and 'return' to enable creation of procs
+ that are a true replacement for 'return'
+
+ * [TIP #100] new 'unload' command (can unload DLLs loaded via 'load',
+ requires the extension writer to support it)
+
+ * [TIP #111] new 'dict' command. Several commands have been updated
+ to handle the list form of dicts implicitly at the C level where
+ only lists were previously accepted
+
+ * [TIP #112] 'namespace ensemble' command addition allows for ensembles
+ that build on the namespace abstraction
+
+ * [TIP #118] file attributes -readonly option for unices that support
+ chflags(), support Mac Classic attribute options on OS X, add
+ -rsrclength for OS X, enhance file copy on OS X to copy finder
+ attributes and resource forks transparently
+
+ * [TIP #120] enable dde in safe interpreters
+ * [TIP #130] enable unique dde server names on Windows
+ * [TIP #135] change dde servername -exact option to -force
+=> dde 1.3
+
+ * [TIP #121] new Tcl_SetExitProc C API to control application shutdown
+
+ * [TIP #123] expr ** exponentiation operator
+
+ * [TIP #124] 'clock clicks -milliseconds' now returns a wide integer and a
+ new 'clock clicks -microseconds' returns a wide integer, representing
+ the number of microseconds, both since the Posix epoch
+
+ * [TIP #127] added 'lsearch -index' option
+
+ * [TIP #136] added 'lrepeat' command
+
+ * [TIP #137/151] Add -encoding option to 'source' command and main tclsh
+ executable.
+ *** POTENTIAL INCOMPATIBILITY ***
+ For Tcl embedders that build on Tcl_Main() and make use of Tcl_Main's
+ former ability to pass a leading "-encoding" option to interactive shell
+ operations, this will now be consumed by Tcl.
+
+ * [TIP #138] New TCL_HASH_KEY_SYSTEM_HASH option for Tcl hash tables
+
+ * [TIP #139] documented portions of Tcl's namespace C APIs
+
+ * [TIP #148] correct [list]-quoting of the '#' character
+ *** POTENTIAL INCOMPATIBILITY ***
+ For scripts that assume a particular (buggy) string rep for lists.
+
+ * [TIP #156] add "root locale" to msgcat
+=> msgcat 1.4
+
+ * [TIP #157] leading {expand} syntax on words to cause argument expansion.
+ This is a safer/cleaner alternative to the use of 'eval'.
+
+--- Released 8.5a1, March 3, 2004 --- See ChangeLog for details ---
+
+2004-03-04 (new feature) registry package is [unload]able (thoyts)
+=> registry 1.1.4
+
+2004-03-08 (bug fix)[910525] [glob -path] in root directory (darley)
+
+2004-03-12 (new feature)[TIP 163] [dict merge] (english, fellows)
+
+2004-03-18 (platform support) support for Mac Classic removed (steffen)
+
+2004-03-28 (bug fix)[925121] corrected segfault in bc compiler (sofer)
+
+2004-03-30 (bug fix)[495830,729692] bytecode execution checks
+each command/interp validity before executing. (sofer)
+
+2004-03-31 (bug fix)[811457] support translation to "" (porter)
+2004-03-31 (bug fix)[811461] ignore locales with no "language" part (porter)
+=> msgcat 1.4.1
+
+2004-04-01 (bug fix) make [glob -type d -dir . *] work across VFS boundary
+
+2004-04-06 (clean up) refactored Tcl header file #include order. Might
+create need for changes in extensions that #include private headers.
+Changed source code files should work with older Tcl as well. See ChangeLog.
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2004-04-07 (bug fix)[920667] install into any Unicode path on Win (hobbs)
+
+2004-04-07 (platform support) properly substitute more values in Windows
+tclConfig.sh (hobbs)
+
+2004-04-23 (bug fix)[930851] reset channel EOF when eofchar changes (kupries)
+
+2004-04-28 (bug fix)[600812][TIP 184] [upvar 0 scalar array(foo)] raises error
+
+2004-05-03 (bug fix)[947070] stack overflow prevention on Win (kenny)
+
+2004-05-03 (bug fix)[868853] fix leak in [fconfigure $serial -xchar] (cassoff)
+
+2004-05 (bug fix)[928353,929892,928808,947440,948177] test fixes: OSX (abner)
+
+2004-05-05 (bug fix)[794839] socket connect error -> r/w fileevents
+(gravereaux)
+
+2004-05-07 (bug fix)[949905] corrected utf-8 encoding of \u0000 on I/O (max)
+
+2004-05-13 (new feature)[TIP 129] [binary scan tnmrRqQ] (markus, fellows)
+
+2004-05-13 (new feature)[TIP 142] [interp limit] (fellows)
+
+2004-05-14 (bug fix)[940278,922848] [clock] notices $::env(TZ) changes,
+gmt works on all platforms. (kenny, welton, glessner)
+
+2004-05-16 (feature rewrite) bytecode execution of {expand} changed
+ *** POTENTIAL INCOMPATIBILITY with prior 8.5a releases ***
+
+2004-05-18 (platform support) makefile.vc now generates tclConfig.sh (thoyts)
+
+2004-05-18 (bug fix)[500285,500389,852944] [clock %G %V] ISO8601 week numbers
+(kenny)
+
+2004-05-22 (bug fix)[735335,736729] variable name resolution error (sofer)
+
+2004-05-24 (bug fix) support for non-WIDE_INT aware math functions (hobbs)
+
+2004-05-25 (new feature) [http::config -urlencoding] (hobbs)
+=> http 2.5.0
+
+2004-05-26 (bug fix)[960926] file count doubled when -singleproc 1 (porter)
+=> tcltest 2.2.6
+
+2004-05-26 (bug fix)[874058] improved build configuration on 64-bit systems.
+Corrects Tcl_StatBuf definition issues. (hobbs)
+
+2004-05-30 (platform support) Win: allow signed short exit codes (gravereaux)
+
+2004-06-05 (bug fix)[976722] hi-res clock fixes: Win
+(godfrey, suchenwirth, kenny)
+2004-06-10 (bug fix)[932314] bad return values from Tcl_FSChdir() (vasiljevic)
+
+2004-06-18 (platform support) regonize more unix locales (huang)
+
+2004-06-18 (bug fix) prevent stack overflow from long free() chains (fellows)
+
+2004-06-21 (platform support) exceptions w/ gcc -O3 on Win (dejong)
+
+2004-06-23 (feature rewrite)[976496] thread local storage done with hash
+tables to avoid system limits (mistachkin)
+
+2004-06-29 (bug fix)[981733] SafeBase global pollution (fellows)
+
+2004-06-30 (new feature)[TIP 188] [string is wideinteger] (kenny)
+
+2004-07-02 (new feature)[TIP 202] pipe redirection 2>@1 (hobbs)
+
+2004-07-03 (bug fix)[908375] round() wide integer support (lavana, sofer)
+
+2004-07-07 (bug fix)[458361] shimmer of single-word scripts suppressed (sofer)
+
+2004-07-15 (bug fix)[770053] crash in thread finalize of notifier (vasiljevic)
+
+2004-07-15 (bug fix)[990453] plug mutex leaks on reinit
+(mistachkin, vasiljevic)
+
+2004-07-16 (bug fix)[990500] clean exit of notifier thread
+(mistachkin, kupries)
+
+2004-07-19 (bug fix)[987967] improved self-init of mutexes on Win (vasiljevic)
+
+2004-07-20 (bug fix) pure Darwin/CFLite support (steffen)
+
+2004-07-20 (bug fix)[736426] plug leaky allocator reinit (mistachkin, kenny)
+
+2004-07-30 (bug fix)[999084] no deadlock in re-entrant Tcl_Finalize (porter)
+
+2004-08-02 (new feature)[TIP 207] [interp invokehidden -namespace] (porter)
+
+2004-08-10 (bug fix) thread IDs on 64-bit systems (ratcliff,vasiljevic)
+
+2004-08-13 (bug fix) avoid malicious code acceptance by [mclocale] (porter)
+=> msgcat 1.3.3
+
+2004-08-16 (bug fix)[1008314] Tcl_SetVar TCL_LIST_ELEMENT (sofer,porter)
+
+2004-08-18 (new feature)[TIP 173,209] complete [clock] rewrite (kenny)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2004-08-18 (new feature)[TIP 189] package loading for Tcl Modules (kupries)
+
+2004-08-19 (bug fix)[1011860] [scan %ld] fix on LP64 (fellows,porter)
+
+2004-08-23 (bug fix)[695441] extend [tcl_findLibrary] search path to include
+ $::auto_path and [pkgconfig get scriptdir,runtime] (porter)
+
+2004-08-27 (platform support) TCL_MODULE_PATH values for Mac OSX (steffen)
+
+2004-08-27 (bug fix)[1017022] recognize imported ensembles (fellows)
+
+2004-08-30 (bug fix) [string map $x $x] crash (fellows)
+
+2004-09-01 (bug fix)[1020445] WIN64 support (hobbs)
+
+2004-09-03 (bug fix)[1020538] crash in [file copy] (violi,fellows)
+
+2004-09-07 (bug fix)[1016167] [after] overwrites its imports (kenny)
+
+2004-09-08 (bug fix) fixed [clock format 0 -format %k] (kenny)
+
+2004-09-09 (bug fix)[560297] fixed broken [namespace forget] logic (porter)
+
+2004-09-09 (bug fix)[1017299] fixed [namespace import] cycle prevention
+(porter)
+
+2004-09-10 (performance) $x[set x {}] is now fast [K $x [set x {}]] (sofer)
+
+2004-09-10 (bug fix)[868489] better control over int <-> wideInt
+(fellows,kenny)
+
+2004-09-10 (bug fix)[1025359] POSIX errorCode from wide seeks (kupries,fellows)
+
+2004-09-10 (bug fix)[707104,1026493] fix [rename] of [interp alias] (porter)
+
+2004-09-18 (bug fix)[868467] fix [expr 5>>32] => 0, not 5 (hintermayer,fellows)
+
+2004-09-21 (bug fix) consistent errorinfo from [namespace eval x error foo bar]
+ and [namespace eval c {error foo bar}] (porter)
+
+2004-09-22 (feature change) syntax errors not reported at compile time;
+ deferred to runtime. Support [return -errorline]. (porter)
+
+2004-09-23 (bug fix)[1016726] fix `make clean` in static config
+(leitgeb,dejong)
+
+2004-09-22 (feature change) report all compile errors at runtime (porter)
+
+2004-09-29 (bug fix)[1036649] syntax error in [subst] => buffer overflow
+(sofer)
+
+2004-09-30 (bug fix)[1038021] save/restore error state: var traces (porter)
+
+2004-10-01 (performance) stackframe level values in internal reps (fellows)
+
+2004-10-01 (feature change)[1037235] auto-create [dict] key paths (fellows)
+
+2004-10-04 (bug fix)[884830] eq and ne parse in expr (fellows)
+
+2004-10-05 (reform) errorInfo, errorCode management (porter)
+ *** POTENTIAL INCOMPATIBILITY for traces on those vars ***
+
+2004-10-06 (feature change)[1041072] re-bless and enhance Tcl_AppendResult
+(dkf)
+
+2004-10-06 (reform) more robust interp result appends (porter)
+=> dde 1.3.1
+=> registry 1.1.5
+
+2004-10-06 (reform) re-write of [glob] guts (fellows)
+
+2004-10-07 (reform)[925620] improved platform split of VFS code (darley)
+
+2004-10-08 (new feature)[TIP 201] "in" and "ni" expr operators (fellows)
+
+2004-10-08 (new feature)[TIP 212] [dict update]; [dict with] (fellows)
+
+2004-10-08 (bug fix)[954263] case insensitive [file exec] for Win
+(hobbs,darley)
+
+2004-10-14 (performance) [info commands/globals/procs/vars $pattern] faster
+ when $pattern is trivial (fellows)
+
+2004-10-14 (new feature)[TIP 217] [lsort -indices] (salsman,fellows)
+
+2004-10-24 (reform) replaced bit flag values with macros for Var handling
+ *** POTENTIAL INCOMPATIBILITY for accesses to Var internals ***
+
+2004-10-26 (new feature)[1054370] install msgcat, http, tcltest as TM's
+(porter)
+
+2004-10-26 (bug fix)[767676] negative PIDs with pipes (giese,gravereaux)
+
+2004-10-27 (bug fix)[731778] stop critical section leaks
+(mistachkin,gravereaux)
+
+2004-10-27 (bug fix)[926088] -load option to find tested packages (gravereaux)
+
+2004-10-28 (bug fix)[1030548] restore the --enable-symbols --enable-threads
+build on Win (mistachkin,kenny,kupries)
+
+2004-10-29 (bug fix)[1055673] fix command line syntax error message (porter)
+=> tcltest 2.2.7
+
+2004-10-30 (bug fix)[926106] fix [file mtime] DST anomaly (kenny)
+
+2004-10-31 (bug fix)[1057461] fix [info globals ::varName] (fellows)
+
+2004-11-02 (bug fix)[761471] fix [expr {NaN == NaN}] (sofer)
+
+2004-11-02 (bug fix)[1017151] misleading errorInfo after tests (seeger,porter)
+
+2004-11-03 (bug fix)[527164] preserve errorinfo from var traces (porter)
+
+2004-11-08 (bug fix){947693] Made -blocking option of channel during [close]
+consistent on Windows with Unix (gravereaux)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2004-11-11 (bug fix)[1034337] recursive file delete, MacOSX (steffen)
+
+2004-11-12 (new feature)[TIP 221] [interp bgerror] (porter)
+
+2004-11-12 (new feature)[TIP 226] Tcl_(Save|Restore|Discard)InterpState
+(porter)
+
+2004-11-12 (new feature)[TIP 227] Tcl_(Get|Set)ReturnOptions (porter)
+
+2004-11-12 (bug fix)[1004065] stop crash when TCL_UTF_MAX==6 (hobbs,porter)
+
+2004-11-15 (bug fix)[10653678] [trace variable],[trace remove] interop (porter)
+
+2004-11-16 (bug fix)[1067709] crash in [fconfigure -ttycontrol] (hobbs)
+
+2004-11-18 (new feature) configure options --enable-man-suffix (max)
+
+2004-11-22 (bug fix)[1030465] Improve HAVE_TYPE_OFF64_T check (dejong)
+
+2004-11-22 (bug fix)[1043129] Fixed the treatment of backslashes in file
+join on Windows (darley)
+
+2004-11-22 (bug fix)[976438] Move init.tcl search path construction to
+tclInit (porter)
+
+2004-11-24 (bug fix)[1072654] Fixed segfault in info vars trivial
+matching branch (new in 8.4.8) (porter)
+
+2004-11-24 (bug fix)[1001325, 1071701] Fixed readdir_r detection and usage
+(dejong, kenny, porter)
+
+2004-11-24 (bug fix)[1071807] Fixed all uses of 'select' to use standard
+macros rather than older bit-whacking style (kenny)
+
+2004-11-26 (bug fix)[1073524] Simplify the code to check for correctness of
+strstr, strtoul and strtod on unix (fellows)
+
+2004-11-26 (bug fix)[1072136] Remove file normalize on tcl_findLibrary
+search path uniqification added in 8.4.8 (porter)
+
+2004-11-30 (bug fix)[976520] Rework startup/initialization of the Tcl
+library, encoding search initialization, and Tcl_FindExecutable structure.
+[tclInit] no longer driven by the value of $::tcl_libPath (TCLLIBPATH).
+(porter)
+ *** POTENTIAL INCOMPATIBILITY : makes encoding names case sensitive
+ on Windows, where they have been case insensitive ***
+
+2004-12-02 (bug fix)[1074671] Ensure tilde paths are not returned specially
+by 'glob' (darley)
+
+Doc improvements [759545,926590,935853,1017072,1018486,1022527,1027849,
+ 1032243,1047928,1048005,1058446,1062647,1065732,1073334,etc.]
+Test suite expansion [1036649,1001997,etc.]
+
+--- Released 8.5a2, December 7, 2004 --- See ChangeLog for details ---
+
+2004-12-13 (bug fix)[1083082] encoding memory leaks (ade,porter)
+
+2004-12-13 (bug fix)[1082349] restored C++ extension support (porter)
+
+2004-12-14 (bug fix)[1081541] workaround automake-ism "$U" (porter)
+
+2004-12-15 (new feature) CallFrames on execution, not C, stack (sofer)
+
+2004-12-16 (bug fix)[1085023] [interp limit] support in [vwait], etc. (fellows)
+
+2004-12-29 (bug fix)[1090413] make [clock scan 0030] work (morian,kenny)
+
+2004-12-29 (bug fix)[1092789] make [clock scan 10000] work (porter,kenny)
+
+2004-12-29 (platform support)[1092952,1091967] MSVC7, gcc OPT compiles (hobbs)
+
+2005-01-06 (performance)[1020491] [http::mapReply] (fellows)
+=> http 2.5.1
+
+2005-01-09 (bug fix)[1095909] stopped use of readdir_r (english)
+
+2005-01-10 (enhancement)[1081595] stopped use of TCL_DBGX (english)
+
+2005-01-17 (bug fix)[1100542] [glob] of Windows shares (schar,darley)
+
+2005-01-19 (new feature)[TIP 235] C API for ensembles (fellows)
+
+2005-01-21 (new feature)[TIP 233] virtual time (kupries)
+
+2005-01-25 (bug fix)[1101670] [auto_reset] update for [namespace] (porter)
+***POTENTIAL INCOMPATIBILITY***
+May cause re-[source]-ing of files that have not anticipated that before.
+
+2005-01-27 (new feature)[TIP 218] Tcl_Channel API update for threads (kupries)
+
+2005-01-27 (bug fix)[1109484] Tcl_Expr* updates for Tcl_WideInt (hobbs)
+
+2005-01-28 (platform support)[1021871] Solaris gcc 64-bit support (hobbs)
+
+2005-02-10 (bug fix)[1119369] Tcl_EvalObjEx: avoid shimmer loss of List intrep
+(sofer,macdonald)
+
+2005-02-11 (platform support) correct gcc builds for AIX-4+, HP-UX-11 (hobbs)
+
+2005-02-24 (bug fix)[1119798] prevent [source $directory] (porter,mpettigr)
+=> tcltest 2.2.8
+
+2005-03-10 (bug fix)[1153871] bad ClientData cast (porter,victorovich)
+
+2005-03-15 (platform support) OpenBSD ports patch (thoyts)
+
+2005-03-18 (bug fix)[1115904] restore recursion limit in direct eval (porter)
+
+2005-03-24 (bug fix) stop conflict between Tcltest and Thread packages (porter)
+
+2005-03-29 (platform support) allow msys builds without cygwin (hobbs)
+
+2005-04-01 (internal change)[1158008] internal rep of "list" Tcl_Obj's
+now uses a refcounted struct (sofer)
+***POTENTIAL INCOMPATIBILITY***
+For any code that goes poking into the internals of "list" Tcl_Obj's
+
+2005-04-05 (performance)[1174551] Tcl_DecrRefCount of Tcl_Obj "chains" (sofer)
+
+2005-04-08 (performance)[1077262] better Tcl_Encoding cache lifetimes (porter)
+
+2005-04-10 (bug fix)[1180368] [interp invokehidden] mem leak (kenny,porter)
+
+2005-04-12 (performance)[1177363] startup encoding file scan (porter)
+
+2005-04-12 (performance)[1182459] [clock format] (kenny)
+
+2005-04-13 (bug fix) min buffer size dropped from 10 to 1 byte (gravereaux)
+
+2005-04-16 (bug fix)[1178445] fix memory waste at thread exit (vasiljevic)
+
+2004-04-16 (bug fix)[1084111] [array names] memory leak (ade,sofer)
+
+2005-04-19 (bug fix)[1185933] [clock] init clobbered global vars (ring,kenny)
+
+2005-04-19 (new feature) [::tcl::unsupported::EncodingDirs] - unsupported
+command to set search path for encoding files (porter)
+
+2005-04-20 (bug fix)[1090869] Tcl_GetInt accept 0x80000000, 64-bit
+(porter,singh)
+
+2005-04-22 (bug fix)[1187123] [string is boolean] respect EIAS (porter)
+
+2005-04-25 (enhancement) update to tzdata2005i (kenny)
+
+2005-04-25 (platform support) builds on Mac OS X 10.1 (steffen)
+
+2005-04-27 (new feature)[TIP 183] [open $f {... BINARY ...}] (porter)
+
+2005-04-29 (new feature)[TIP 176] simple index arithmetic (porter)
+
+2005-05-06 (platform support) x86_64 Solarix cc and Solaris 10 builds (hobbs)
+
+2005-05-10 (bug fix)[1198892] [expr {i**0}] error (kaitschu,markus)
+
+2005-05-10 (new feature)[TIP 132] floating-point conversion to string (kenny)
+***POTENTIAL INCOMPATIBILITY***
+For scripts that rely on (tcl_precision==12) number formatting
+
+2005-05-10 (new feature)[TIP 232] math functions as commands (kenny)
+***POTENTIAL INCOMPATIBILITY***
+Tcl_GetMathFuncInfo functioning is reduced; routine is now deprecated
+
+2005-05-13 (feature removed) TCL_NO_MATH compiler directive (porter)
+
+2005-05-14 (platform support) Mac OSX: configurable CoreFoundation API
+(steffen)
+
+2005-05-14 (platform support) Mac OSX: use realpath when threadsafe (steffen)
+
+2005-05-17 (feature removed) Tcl_ObjType's "list", "procbody", "index",
+"ensembleCommand", "localVarName", "levelReference, "boolean" are no
+longer registered (porter)
+***POTENTIAL INCOMPATIBILITY***
+For any callers of Tcl_GetObjType on those strings
+
+2005-05-20 (bug fix)[1201589] boolean literal prefix in expressions (porter)
+
+2005-05-24 (platform support) Darwin build support merged into unix (steffen)
+
+2005-05-24 (new feature)[1202209] Mac OSX: support [load] of .bundle binaries
+Can support [load] from memory as well (steffen)
+
+2005-05-24 (new feature)[1202178] [time] returns non-integer result (steffen)
+
+2005-05-25 (new feature)[TIP 182] [expr {bool(...)}] (mistachkin,porter)
+
+2005-05-30 (new feature)[TIP 229] [namespace path] (fellows)
+
+2005-05-31 (bug fix)[1082283] Unix: notifier thread now joinable (vasiljevic)
+
+2005-06-01 (new feature)[TIP 241] -nocase: lsort, lsearch, switch (mistachkin)
+
+2005-06-01 (bug fix)[1209759] "return TCL_RETURN;" could cause panic (porter)
+
+Documentation improvements [1075433,1085127,1117017,1124160,1149605,etc.]
+
+--- Released 8.5a3, June 4, 2005 --- See ChangeLog for details ---
+
+2005-06-06 (bug fix)[1213678] Windows/gcc: crash in stack.test (kenny)
+
+2005-06-07 (new feature)[TIP 208] [chan] and [chan truncate] (fellows)
+
+2005-06-07 (revert) Restored registration of "procbody" Tcl_ObjType (porter)
+Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
+
+2005-06-13 (bug fix)[1217375,1219176] [file mkdir] race (diekhans,darley)
+
+2005-06-14 (bug fix)[1220058] [namespace delete] crash (duquette,fellows)
+
+2005-06-17 (bug fix)[1221395] Tcl_LimitSetTime able to break [vwait] (fellows)
+
+2005-06-18 (bug fix)[1154163] [format %h] on 64-bit OS's (kraft,fellows)
+
+2005-06-21 (bug fix)[1201035,1224585] execution trace crashes (porter)
+
+2005-06-21 (bug fix)[1194458] Windows: [file split] (kenny,porter)
+
+2005-06-22 (bug fix)[1225727] Windows: pipe finalization crash (kenny)
+
+2005-06-22 (bug fix)[1225571] Windows: [file pathtype] buffer overflow (thoyts)
+
+2005-06-22 (bug fix)[1225044] Windows: UMR in pipe close (kenny)
+
+2005-06-23 (bug fix)[1225957] Windows/gcc: crashes in assembler code (kenny)
+
+2005-06-24 (bug fix) make Tcl_Preserve safe in Tk exit handlers (kenny)
+
+2005-07-01 (bug fix)[1222872] notifier spurious wake-up protection (vasiljevic)
+
+2005-07-05 (bug fix)[1230597] allow idempotent [namespace import] (porter)
+
+2005-07-15 (bug fix)[1237907] localtime() => NULL => crash (kenny)
+
+2005-07-21 (dropped support) IRIX 4, RISCos, Ultrix, and ancient BSD (kenny)
+***POTENTIAL INCOMPATIBILITY***
+
+2005-07-22 (enhancement)[1237755] 8.4 features in script library (fradin,porter)
+
+2005-07-24 (new feature) configure macros SC_PROG_TCLSH, SC_BUILD_TCLSH (dejong)
+2005-07-26 (bug fix)[1047286] cmd delete traces during namespace delete (porter)
+
+2005-07-26 (new unix feature)[1231015] ${prefix}/share on ::tcl_pkgPath (dejong)
+***POTENTIAL INCOMPATIBILITY***
+
+2005-07-27 (bug fix)[1214462] [unknown] can return exceptions (porter)
+
+2005-07-27 (new feature) value of ::tcl_precision now kept per-thread (porter)
+***POTENTIAL INCOMPATIBILITY***
+
+2005-07-28 (unix bug fix)[1245953] O_APPEND for >> redirection (fellows)
+
+2005-07-29 (bug fix)[1247135] [info globals] return only existing vars (fellows)
+
+2005-07-30 (new Darwin feature) TCL_LOAD_FROM_MEMORY configuration (steffen)
+
+2005-08-05 (bug fix)[1241572] correct [expr abs($LONG_MIN)] (kenny)
+
+2005-08-05 (Solaris bug fix)[1252475] recognize cp1251 encoding (wagner,fellows)
+
+2005-08-11 (config options) eliminated USE_THREAD_STORAGE option (kenny)
+
+2005-08-23 (toolchain support) autoconf-2.59 now required (dejong)
+
+2005-08-24 (new feature)[TIP 219] reflected channels ([chan create]) (kupries)
+
+2005-08-25 (bug fix)[1267380] [lrepeat] buffer overflow prevention (fellows)
+
+2005-08-26 (bug fix) fix [namespace ensemble] crashes in Snit (fellows)
+
+2005-08-29 (bug fix)[1275043] restore round() away from zero (kenny)
+
+2005-08-29 (bug fix)[1189657] correct [tcl::tm::roots] (porter)
+
+2005-09-07 (bug fix)[1283976] invalid [format %c -1] result (porter)
+
+2005-09-08 (new feature)[1242844][TIP 254] new types for Tcl_LinkVar (fellows)
+
+2005-09-07 (toolchain support) deprecate TCL_VARARGS*; stdarg.h assumed (porter)
+***POTENTIAL INCOMPATIBILITY***
+
+2005-09-15 (RHEL bug fix)[1287638] support open >2GB files RHEL 3 (palan)
+
+2005-09-08 (new feature)[TIP 255] [expr min()] and [expr max()] (hobbs)
+
+2005-09-30 (bug fix)[1306162] $argv encoding and list formatting (porter)
+
+2005-10-04 (bug fix)[1067708] [fconfigure -ttycontrol] leak (hobbs)
+
+2005-10-04 (bug fix)[1182373] [http::mapReply] update to RFC 3986 (aho,hobbs)
+=> http 2.5.2
+
+2005-10-04 (HPUX bug fix)[1204237] shl_load() and DYNAMIC_PATH (collins,hobbs)
+
+2005-10-05 (bug fix)[979640] buffer overrun mixing putenv(), ::env (bold,hobbs)
+
+2005-10-08 (new feature)[TIP 237] unlimited range for integers (kenny,porter)
+***POTENTIAL INCOMPATIBILITY*** for any code that relies on implicit truncation
+of integer calculations to the range of a C long
+
+2005-10-14 (platform support)[1256937] MSVC++ static builds (thoyts)
+
+2005-10-19 (bug fix)[1331475] [dict append] crash (bills,sofer)
+
+2005-10-20 (bug fix)[1333036] [lset] shared sublist handling (sofer)
+
+2005-10-23 (bug fix)[1335006] memleack in [glob] (melbardis,darley)
+
+2005-10-23 (bug fix)[1325803] Win: [file stat] on links (bonilla,darley)
+
+2005-11-01 (bug fix)[1337941] Tcl_TraceCommand() -> crash (devilliers,porter)
+
+2005-11-02 (platform support)[1256937] MSVC 8 support (thoyts)
+
+2005-11-03 (new Win NT/XP feature) Unicode console support (kovalenko,thoyts)
+
+2005-11-04 (bug fix)[1337229,1338280] [namespace delete] / unset traces (sofer)
+
+2005-11-04 (enhancement) Korean timezone abbreviations (kenny)
+
+2005-11-04 (platform support)[1163896] LynxOS [load] (heidibr)
+
+2005-11-04 (bug fix)[1334947] value refcount error in var setting (sofer)
+
+2005-11-04 (Win enhancement)[1267871] extended exit codes (newman,thoyts)
+
+2005-11-07 (bug fix)[1348775] unset trace memory leak (sofer)
+
+2005-11-08 (bug fix)[1162286] [package require] checks that the script
+registered by [package ifneeded] provides the version it claims (lavana,porter)
+*** POTENTIAL INCOMPATIBILITY ***
+
+2005-11-09 (bug fix)[1350293,1350291] [after $negative $script] fixed (kenny)
+
+2005-11-12 (bug fix)[1352734,1354540,1355942,1355342] [namespace delete]
+issues with [namespace path] and command delete traces (sofer,fellows)
+
+2005-11-18 (bug fix)[1358369] URL parsing standards compliance (wu,fellows)
+=> http 2.5.2
+
+2005-11-18 (revert) Restored registration of "list" Tcl_ObjType (porter)
+Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
+
+2005-11-18 (bug fix)[1359094] Tclkit crash (thoyts, kupries)
+
+2005-11-20 (bug fix)[1091431] Tcl_InitStubs failure crashes wish (english)
+
+2005-11-27 (platform support) Darwin 64bit, Tiger copyfile(), and
+Max OSX universal binaries support (steffen)
+
+2005-11-28 (bug fix) [clock] DST transition error (mackerras,kenny)
+
+2005-11-29 (bug fix)[1366683] [lsearch -regexp] backrefs (cleverly,fellows)
+
+2005-11-30 (performance) recoded portions of [clock] in C (kenny)
+
+2005-11-30 (enhancement) improved bytecode compiling of [switch] (fellows)
+*** POTENTIAL INCOMPATIBILITY ***
+For loading bytecode compiled and saved by earlier 8.5alpha releases
+
+2005-12-05 (Darwin bug fix)[1034337] NFS recursive file delete (steffen)
+
+2005-12-08 (platform support) Win x64 build (hobbs)
+
+2005-12-09 (bug fix)[1374778] [lsearch -start $pastEnd] => -1 (fellows)
+
+2005-12-12 (bug fix)[1377619] configure syntax error exposed in bash-3.1 (hobbs)
+
+2005-12-13 (bug fix)[1379349] [dict for] CoW error (ring,hippler,fellows)
+
+2005-12-18 (bug fix)[1382528] [dict for {k v} {} {}] crash (kovalenko,fellows)
+
+2005-12-27 clock tzdata updated to Olson's tzdata2005r (kenny)
+
+2005-12-27 libtommath updated to release 0.37 (kenny)
+
+2006-01-09 (bug fix)[1480572] [info level $l] => "namespace inscope" (porter)
+
+2006-01-11 (compat support)[1397843] when ::errorInfo is traced, fall back to
+old pattern of stack trace construction (porter).
+Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2004-10-05.
+
+2006-01-12 (bug fix)[1366227] Win: [file stat] sharing violation (darley)
+
+2006-01-23 (bug fix)[1410553] Tcl_GetRange Unicode confusion (twylite,spjuth)
+
+2006-01-23 (bug fix)[1412695] args handling in precompiled procs (traum,sofer)
+
+2006-02-01 (new feature)[1275435][TIP 250] [namespace upvar] (sofer)
+
+2006-02-01 (new feature)[958222][TIP 181] [namespace unknown] (madden)
+
+2006-02-01 (new feature)[944803][TIP 194] [apply] (mistachkin)
+
+2006-02-08 (new feature)[1413934][TIP 258] [encoding dirs], etc. (porter)
+
+2006-02-09 (new feature)[1413115][TIP 215] auto-init [incr] (leitgeb)
+
+2006-03-02 (bug fix)[1379287] norm of paths with /../ back to root (porter)
+
+2006-03-03 (compat support) Restored registration of a "boolean" Tcl_ObjType
+(porter)
+Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
+
+2006-03-06 (bug fix)[1439836,1444291] fix TCL_EVAL_{GLOBAL,INVOKE} handling
+when auto-loading or exec traces are present (porter)
+
+2006-03-10 (bug fix)[1437595] Win socket finalize with threads (vasiljevic)
+
+2006-03-13 (revert 2005-07-26 change) ${prefix}/share on ::tcl_pkgPath (porter)
+
+2006-03-14 (bug fix)[1448251] TCLX.y_TM_PATH handling (noble, kupries)
+
+2006-03-14 (bug fix)[768659] pipeline error when last command missing (kupries)
+
+2006-03-18 (bug fix)[1193497] Win porting of [file writable] (darley,vogel)
+
+2006-03-18 (bug fix)[1084705] [glob -nocomplain] silence empty result only,
+no other errors (darley)
+***POTENTIAL INCOMPATIBILITY***
+
+2006-03-21 (platform enhancement)[823329] HFS globbing support (steffen)
+
+2006-03-23 (platform support) updated tcl.spec file (max)
+
+2006-03-28 (bug fix)[1064247] BSD: path normalization with realpath() (steffen)
+
+2006-04-03 (bug fix)[1462248] crash reading utf-8 chars spanning multiple
+buffers at end of file (kraft,kupries)
+
+2006-04-05 (bug fix)[1464039] Tcl_GetIndexFromObj: empty key (fellows)
+
+2006-04-05 (bug fix) overdue dde, registry patchelevel increments (porter)
+=> dde 1.3.2
+=> registry 1.2
+
+2006-04-06 (bug fix)[1457515] TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
+removed (steffen)
+
+2006-04-11 (bug fix)[1458266] enter/enterstep trace interference (leunissen)
+
+2006-04-12 (feature change)[1376892] revised definition of [:print:] (fellows)
+
+(platform support) Use of _ANSI_ARGS_ purged. ANSI compiler required (fellows)
+
+Documentation improvements [1211078,1190891,1292427,1277503,1104682,1359183,
+1415725,666770]
+
+--- Released 8.5a4, April 27, 2006 --- See ChangeLog for details ---
+
+2006-05-04 (bug fix)[1480509] srand() accept wide input (porter,afredd)
+
+2006-05-05 (bug fix)[1481986] interactive Tcl_Main blocks main loop (porter,lin)
+
+2006-05-13 (bug fix)[1482718] proc re-compile: preserve the previous
+bytecode while references still on the stack (porter,ryazanov)
+
+2006-05-27 (bug fix)[923072] Darwin: made unthreaded CoreFoundation notifier
+naked-fork safe on Tiger (steffen)
+
+2006-06-20 (internal change) Dropped the internal routines used to hook into
+filesystem operations back in the pre-Tcl_Filesystem days. (porter)
+***POTENTIAL INCOMPATIBILITY***
+For extensions and programs that have never migrated to the supported Tcl 8.4
+interface for virtual filesystems
+
+2006-07-05 (enhancement) Expression parser rewrite avoids stack overflow,
+reduces from O(N^2) to O(N) complexity, and greatly improves syntas error
+messages (porter)
+***POTENTIAL INCOMPATIBILITY***
+For any code relying on exact error messages.
+
+2006-07-20 (platform support) Mac OS X weak linking (steffen)
+
+2006-07-20 (bug fix) Darwin: execve() works iff event loop not yet run (steffen)
+
+2006-07-24 (bug fix)[1518166] Uninitialized Tcl_DString (afredd)
+
+2006-07-30 (bug fix)[1426279,1505383,1494664,1531530] [clock] fixes (kenny)
+
+2006-08-09 (bug fix)[1531184] [dict for {file stat} x {}] crash (fellows)
+
+2006-08-10 (bug fix)[1538262,1530474] code cleanup; optimizations (afredd)
+
+2006-08-18 (bug fix) intermittent failures in TclUnixWaitForFile() (steffen)
+
+2006-08-18 (platform support) Darwin x86_64 (steffen)
+
+2006-08-21 (bug fix)[1457797] Darwin 64-bit notifier hang (steffen)
+
+2006-08-21 (bug fix) Darwin: recursively called event loop (steffen)
+
+2006-08-21 (enhancement) Darwin: nanosec resolution clicks and [time] (steffen)
+
+2006-08-28 (bug fix)[1547681] TclFormatObj count arguments (mistachkin,porter)
+
+2006-08-28 (bug fix) stack.test failure on FreeBSD (mistachkin)
+
+2006-08-30 (bug fix)[1548263] filesystem segfaults (hobbs,mccormack)
+
+2006-08-31 (bug fix)[1541274] [expr {sqrt(-1)}] => -NaN (suchenwirth,porter)
+
+2006-09-06 (bug fix)[999544] use of MT-safe system calls (vasiljevic)
+
+2006-09-10 (platform support) Darwin: msgcat use CFLocale (steffen)
+=> msgcat 1.4.2
+
+2006-09-10 (new feature) tcltest option: -verbose line (steffen)
+=> tcltest 2.3a1
+
+2006-09-19 (bug fix)[1555271,1561260] Several ** operator bugs (porter)
+
+2006-09-22 (bug fix)[1562528] NULL terminates variadic calls (fellows,ryazanov)
+
+2006-09-22 (new feature)[1520767][TIP 268] [package] alpha/beta version;
+[package require] ranges, [package prefer] selection mode (kupries)
+
+2006-09-26 (platform support) MSVC8 AMD64 support (thoyts)
+
+2006-09-27 (bug fix)[1567222] bignum << errors (porter)
+
+2006-09-30 (enhancement)[1190441] quiet no-op [history] (sofer)
+
+2006-10-04 clock tzdata updated to Olson's tzdata2006m (kenny)
+
+2006-10-05 (bug fix)[1570718] make [lappend $nonList] complain (sofer,virden)
+
+2006-10-05 (bug fix)[1122671] alignment fixes in unicode encoding routines
+(hobbs,staplin)
+
+2006-10-05 (enhancement) Allow "_" in Tcl Module filenames (kupries)
+
+2006-10-05 (new feature) [set ::http::strict 0] (default value is 1) to disable
+URL validity checking against RFC 2986 (hobbs)
+=> http 2.5.3
+
+2006-10-06 (new feature)[1565751][TIP 275] [binary scan] unsigned (thoyts)
+
+2006-10-10 (bug fix)[1566526] crash cleaning up [namespace path] data (porter)
+
+2006-10-12 (bug fix)[1576006] better error messages from [interp alias] (sofer)
+
+2006-10-13 (platform support) get stack size on Darwin (steffen)
+
+--- Released 8.5a5, October 20, 2006 --- See ChangeLog for details ---
+
+2006-10-20 (configure change) Added autodetection for OS-supplied timezone
+files (max)
+
+2006-10-23 (enhancement)[1577278] Ensure the Tcl call stack always has a
+CallFrame, even at level 0 (sofer)
+ *** POTENTIAL INCOMPATIBILITY for users of tclInt.h ***
+
+2006-10-23 (enhancement)[1577492] Tcl_PushCallFrame and [info level]
+enhanced for ensemble rewrites (sofer)
+ *** POTENTIAL INCOMPATIBILITY for [info level 0] on interp alias ***
+
+2006-11-02 (feature change)[TIP 293] Replace {expand} with {*} (hobbs)
+ *** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
+
+2006-11-04 (new feature)[TIP 274] Exponentiation operator is right
+associative (porter)
+
+2006-11-09 (new feature)[TIP 272] Added [lreverse] and [string reverse]
+commands (fellows)
+
+2006-11-14 (new feature)[TIP 261] [namespace import] returns list of
+imported commands (porter)
+
+2006-11-15 (new feature)[TIP 270] New C routines Tcl_ObjPrintf,
+Tcl_AppendObjToErrorInfo, Tcl_Format, Tcl_AppendLimitedToObj,
+Tcl_AppendFormatToObj, Tcl_AppendPrintfToObj (porter)
+
+2006-11-22 (feature change) Moved TCL_REG_BOSONLY from tcl.h to tclInt (porter)
+
+2006-11-22 (new feature)[TIP 269] Added [string is list] classification
+command (mistackin, fellows)
+
+2006-11-25 (new feature)[TIP 174] Added commands corresponding to most
+expr operators in ::tcl::mathop (fellows)
+
+2006-11-26 (platform support)[1230558] --enable-64bit on more systems (steffen)
+
+2006-11-27 (bug fix)[1602208] Fix 64-bit handling of select() on unix where
+fd was greater than 32 (fontaine, kenny)
+
+2006-11-28 (new feature)[TIP 280] Added [info frame] command for more
+Tcl-level debugging information (kupries)
+
+2006-12-01 (feature change)[TIP 298] Change Tcl_GetBignumAndClearObj to
+Tcl_TakeBignumFromObj (porter)
+
+2006-12-01 (new feature)[TIP 287] Added [chan pending] subcommand (cleverly)
+
+2006-12-01 (new feature)[TIP 299] Added isqrt() expr operator (kenny)
+
+2006-12-04 (new feature)[TIP 267] Added -ignorestderr option to exec (fellows)
+
+2006-12-05 (new feature)[TIP 291] ::tcl_platform(pointerSize) key (kupries)
+
+2007-01-11 (configure change) Remove "-Wconversion" from deflt CFLAGS (english)
+
+2007-01-25 (configure change) Ensure CPPFLAGS env var is used when set (steffen)
+
+2007-02-19 (configure change) Use SHLIB_SUFFIX=".so" on HP-UX IA64 (was
+".sl") (hobbs)
+
+2007-02-20 (bug fix)[1479814] Handle Windows NT \\?\... extended paths (thoyts)
+
+2007-03-01 (bug fix)[1671138] Fix infinite loop in compiled foreach with an
+empty list (fellows)
+
+2007-03-07 (enhancement) Improved Windows time zone tables to handle new US
+DST rules (kenny)
+
+2007-03-09 (enhancement) Improved Y2038 compliance of zoneinfo files (kenny)
+
+2007-04-02 (enhancement) Added bytecode compilation for global, variable,
+upvar and namespace upvar (sofer)
+
+2007-04-20 (bug fix) Improve clock localization for Japanese locale (kenny)
+
+2007-04-20 (enhancement) Document Tcl_SetNotifier & Tcl_ServiceModeHook (kenny)
+
+2007-04-23 (bug fix) fts_open() crash on 64bit Darwin 8 or earlier (steffen)
+
+--- Released 8.5a6, April 25, 2007 --- See ChangeLog for details ---
+
+2007-04-30 (bug fix)[1705778] many valgrind-detected leaks corrected
+
+2007-05-01 (bug fix)[1710709] leak in [string map] (porter)
+
+2007-05-02 (bug fix)[1710707] leaks in filesystem paths (mistachkin,kenny)
+
+2007-05-18 (feature change) {expand} syntax support removed. (porter)
+ *** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
+
+2007-05-29 (bug fix)[1712723] Joinable thread death on 64-bit (virden,hobbs)
+
+2007-05-30 (feature change)[1725186] When expanded literals are parsed,
+(example: {*}{1 2 3}), TCL_TOKEN_EXPAND_WORD token is no longer returned.
+Tokens reflecting the expansion are returned instead. (porter)
+ *** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
+
+2007-06-06 (platform support) Darwin: add plist to tclsh (steffen)
+
+2007-06-12 (enhancement) [info] is now a [namespace ensemble] (fellows)
+
+2007-06-20 (enhancement) better `make html` results (hobbs)
+
+2007-06-21 (feature change)[1740962] leave traces created during execution
+of traced command do not fire (sofer)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2007-06-23 (bug fix) Darwin: prevent post-fork() abort() (steffen)
+
+2007-06-27 (bug fix)[1743941] Infinite loop in Tcl_CreateTrace traces (porter)
+
+2007-06-29 (enhancement) Tcl_Alloc alignment on Darwin (steffen)
+
+2007-06-30 (bug fix)[1726873] crash in thread sync objects (vasiljevic,twylite)
+
+2007-06-30 (bug fix)[1717186] [lsort -command \{ $l] leak (afredd,fellows)
+
+2007-07-05 (bug fix)[1743676] no command named "" error message (porter,virden)
+
+2007-07-11 (bug fix)[1752146] [while 1 {}] & [interp limit] on commands (sofer)
+
+2007-07-31 (bug fix)[681877] tcl_platform(user) from system, not env (fellows)
+
+2007-07-31 (enhancement)[1750051] space efficiency of Tcl variables (sofer)
+ *** POTENTIAL INCOMPATIBILITY for C code that accesses internal
+ Tcl structs Var, Bytecode, Namespace, or CallFrame. ***
+
+2007-08-01 (enhancement)[1764318] word.tcl proc rewrites (petasis,fellows)
+
+2007-08-08 (bug fix)[1770224] [tcl::mathop::>> $big1 $big2] errors (porter)
+
+2007-08-14 (platform support) Darwin [load] from VFS on intel & 64bit (steffen)
+
+2007-08-15 (bug fix)[1773127] corrected open mode "a+" (rottman,fellows)
+
+2007-08-16 (bug fix)[1773040] ::errorInfo trace crash (janssen,porter)
+
+2007-08-16 (performance)[1564517] pre-compile constant expressions (porter)
+
+2007-08-21 (bug fix)[1775878] 'puts \' in interactive tclsh failed to move to
+prompt for continuation line (porter)
+
+2007-08-25 (bug fix)[1781282] [clock scan] case senstivity (kenny)
+
+2007-08-25 (performance)[1767293] ** on native integer types (kenny)
+
+2007-09-03 clock tzdata updated to Olson's tzdata2007g (kenny)
+
+2007-09-06 (platform support) Darwin: drop support for Xcode 1.5 project, add
+project for Xcode 3.0 (steffen)
+
+2007-09-08 (bug fix)[1786481] nested [dict update] crash (fellows)
+
+2007-09-08 (bug fix)[1710710] TclPtrSetVar leak (mistachkin,sofer)
+
+2005-09-09 (feature removed) Tcl_ObjType "nsName" no longer registered (porter)
+ *** POTENTIAL INCOMPATIBILITY for Tcl_GetObjType("nsName") ***
+
+2007-09-10 (bug fix)[1740631] Linked variable unlink prevention (maros,hobbs)
+
+2007-09-11 (bug fix)[1786481] [dict update] stack management (sofer)
+ *** POTENTIAL INCOMPATIBILITY with previous 8.5 alpha bytecode only ***
+
+2007-09-11 (bug fix)[1578344] [package require -exact] 8.4 compat (porter)
+ *** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
+
+2007-09-11 (bug fix)[1772989,1071322] Support _, : in test constraints (porter)
+=> tcltest 2.3b1
+
+2007-09-11 (platform support) Windows AMD64 support (thoyts)
+
+2007-09-14 (enhancement)[1793984] DTrace provider for Tcl (steffen)
+
+2007-09-14 (bug fix)[1519940] surplus ns path invalidation (fellows,bauer)
+
+2007-09-15 (platform support) SunOS-5.1x link with cc, not ld (steffen)
+
+2007-09-17 (platform support)[1748251] Fix NetBSD link failures (english)
+
+(bug fix)[1066755] Several stack efficiency efforts increases recursion limit
+on Windows to be larger than the default [interp recursionlimit] value
+
+--- Released 8.5b1, September 26, 2007 --- See ChangeLog for details ---
+
+2007-10-02 (bug fix)[1806422] proper [tcl::tm::path] autoload (porter)
+
+2007-10-02 (bug fix) Improve Tcl_DecrRefCount() robustness (staplin)
+
+2007-10-11 (bug fix)[1805887] [string is int -failindex] for 0o, 0b (porter)
+
+2007-10-15 (bug fix)[1813528] Tcl_ParseBraces read past buffer (mistachkin)
+
+2007-10-25 (bug fix)[1726873] intermittent crash in threads (vasiljevic)
+
+--- Released 8.5b2, October 26, 2007 --- See ChangeLog for details ---
+
+2007-10-27 (bug fix)[1821159] fixed broken compile on x86_64 (sofer)
+
+2007-10-27 (bug fix)[1810264] stop panic in RE lexer (fellows)
+
+2007-10-28 (enhancement)[1826906] Embed iso8859-1 encoding in libtcl (fellows)
+
+2007-11-01 (bug fix)[1808258] [string is ascii \000] (fellows)
+
+2007-11-05 (bug fix)[1823576] [fconfigure $serial -xchar \000] (cassof)
+
+2007-11-07 (performance)[1827996] binary glob matching (hobbs)
+
+2007-11-07 (performance) binary [gets] (hobbs)
+
+2007-11-09 (performance)[1829248] interp state reset (sofer)
+
+2007-11-10 (performance) stack checking (sofer)
+
+2007-11-10 (performance) list indexing bytecode (sofer)
+
+2007-11-11 (performance)[1830038] macros to fetch Tcl_Obj intreps (sofer)
+
+2007-11-11 (performance)[1830166] RE bytecode for simple cases (hobbs)
+
+2007-11-13 (performance) [switch] & [regexp] use RE bytecode (hobbs, fellows)
+
+2007-11-14 (performance) bytecode for [info exists] (fellows)
+
+2007-11-15 (new feature)[1231022] configure option: --disable-rpath (fellows)
+
+2007-11-15 (bug fix)[1810038] infinite loop in RE compiler (lane,porter)
+
+Many significant documentation improvements (fellows, sofer)
+
+--- Released 8.5b3, November 19, 2007 --- See ChangeLog for details ---
+
+2007-11-20 (enhancement) string rep of dict has stable order (fellows)
+
+2007-11-21 (enhancement) compiled ensemble support (fellows)
+
+2007-11-22 (enhancement) [dict] is now an ensemble (fellows)
+
+2007-11-23 (enhancement) [string] is now an ensemble (fellows)
+
+2007-11-26 (bug fix)[1815573] Correct stack checking failure (sofer,golovan)
+
+2007-11-27 (bug fix)[800753] Document single byte char limit for
+[chan configure -eofchar] (cassoff)
+
+2007-12-03 (enhancement)[1836519] [switch $val $body] safe/fast (fellows,spjuth)
+
+2007-12-03 (release) tcltest package bump to 2.3.0 (porter)
+
+2007-12-03 (bug fix)[1618235] fix BSD compile errors (fellows)
+
+2007-12-05 (bug fix)[1844789] fix [lsearch -exact -integer] crash (fellows)
+
+2007-12-05 (performance)[1845092] Tcl_ObjType for channel names (hobbs)
+
+2007-12-14 (bug fix)[1602539] NUL pollution in [glob] result (hobbs)
+
+2007-12-17 (bug fix)[1851832,1851524] memory alignment correction (sofer)
+
+2007-12-18 (bug fix)[1810264] revised regexp engine to prevent debilitating
+over-consumption of resources (drewry,lane,ormandy,fellows)
+
+Several documentation and release notes improvements
+
+--- Released 8.5.0, December 20, 2007 --- See ChangeLog for details ---
+
+2007-12-23 (bug fix)[1857126] restore backref support to regexps (hobbs)
+
+2007-12-26 (enhancement)[1856994] [lsort] performance (sofer)
+
+2008-01-10 (bug fix)[1867855] fix [format %lli 0] crash (porter)
+
+2008-01-11 (bug fix)[1850424,1860425] stack checking on *bsd (sofer,noble)
+
+2008-01-13 (bug fix)[1353846] crash in read-only serial (hobbs,newman)
+
+2008-01-15 (bug fix)[1869989] mem leak; expr literals (porter,melbardis)
+
+2008-01-20 (bug fix)[1869405] binary [gets]; stacked channels (hobbs,ficicchia)
+
+2008-01-22 (bug fix)[1867855] fix [lreverse {}] crash (sofer,madden)
+
+2008-01-30 (bug fix)[1882373] fix Tcl_GetAlias pointer code (an00na)
+
+Several documentation and release notes improvements
+
+--- Released 8.5.1, February 5, 2008 --- See ChangeLog for details ---
+
+2008-02-06 (enhancement) [clock format] performance (kenny)
+
+2008-02-12 (bug fix)[1891827] compiled [switch -nocase] error (fellows)
+
+2008-02-22 (bug fix)[1818565] missing state array in http::status (thoyts)
+=> http 2.5.4
+
+2008-02-26 (bug fix)[1868845] corrected [eof] ordering (thoyts)
+
+2008-02-26 (new feature) [http::meta] command (thoyts)
+=> http 2.5.5
+
+2008-02-26 (bug fix)[1902436] fixed regexps ending in \* (hobbs)
+
+2008-02-27 (bug fix)[1862555,1902423] [clock] range & l10n (kenny)
+
+2008-02-28 (bug fix) [return -level 0] memory leak (porter)
+
+2008-02-28 (bug fix) [format %llx $big] memory leak (porter)
+
+2008-02-28 (bug fix) expression parser error message memory leak (porter)
+
+2008-02-28 (bug fix) memory leak when enter trace modifies command (porter)
+
+2008-02-29 (enhancement) Consumer refcounting for Tcl_SetReturnOptions()
+and Tcl_AddObjToErrorInfo() (spjuth,porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-03-07 (bug fix)[1899164] Avoid expr and script bytecode confusion (porter)
+
+2008-03-07 (bug fix)[1904907] finalize crash in Tcl_GetReturnOptions (kupries)
+
+2008-03-10 (bug fix)[1893815] expr {abs(-1e-350)} => -0.0 (porter)
+
+2008-03-10 (bug fix)[1901113] crash in [tcl::Bgerror {} {}] (madden,porter)
+
+2008-03-11 (bug fix)[1911919] unset trace inf loop in namespace delete (sofer)
+
+2008-03-12 (new feature) some HTTP 1.1 support in http (and more!) (hobbs)
+=> http 2.7
+
+2008-03-13 (enhancement) support space in INSTALL_ROOT or $builddir (steffen)
+
+2008-03-16 (bug fix)[1903325] bytecode stack space prediction crash (fellows)
+
+2008-03-18 (bug fix)[1914604] Tcl Modules: encoding fixed to utf-8; environment
+variables without "." added to customization hooks (kupries)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-03-18 (bug fix)[1914503] alignment of TclStackAlloc() return (sofer)\
+
+2008-03-20 (bug fix)[1868171] expose Tcl_GetMemoryInfo (for AOLserver) (fellows)
+
+2008-03-24 (bug fix)[1923966] crash in [binary format x0s] (thoyts)
+
+2008-03-27 (platform support)[1921166] Solaris 64bit build fixes (steffen)
+
+2008-03-27 clock tzdata updated to Olson's tzdata2008b (kenny)
+
+--- Released 8.5.2, March 28, 2008 --- See ChangeLog for details ---
+
+2008-03-30 (bug fix)[1783544] more robust TclIsNaN() (kenny,teterin)
+
+2008-04-01 (interface)[1819422] tclStubsPtr no longer in libtcl (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-04-01 (bug fix)[1839067] FP round fix for Solaris/x86 (kupries,schlenker)
+
+2008-04-02 (bug fix)[780533,1932639] [fcopy] callbacks unreliable (ferrieux)
+
+2008-04-02 (interface)[1819422] libtclstub symbols MODULE_SCOPE (steffen)
+
+2008-04-04 (bug fix) [chan postevent] crash (kupries)
+
+2008-04-07 (bug fix) Fix broken [format {% d}] (max)
+
+2008-04-07 (bug fix)[1350564] Bi-directional [fcopy] now supported (ferrieux)
+
+2008-04-16 (bug fix)[1938497] Tcl_SetNotifier() fixes (steffen)
+
+2008-04-16 (interface)[1938497] make stubs tables 'static const' (steffen)
+
+2008-05-02 (new feature) [binary] is now a [namespace ensemble] (thoyts)
+
+2008-05-07 (bug fix) [dict append] crash (mccormack,fellows)
+
+2008-05-21 (bug fix)[1968882] [info complete "\\\n"] => 0 (porter)
+
+2008-05-22 (bug fix)[1968245] Tcl_LogCommandInfo() accept length=-1 (darroch)
+
+2008-05-23 (bug fix)[1965787] 32-bit overflow in [tell] result (ferrieux)
+
+2008-05-31 (new feature)[TIP 257] [oo::*] commands from TclOO (fellows)
+
+2008-06-04 (new feature)[TIP 317] [binary encode]; [binary decode] (thoyts)
+
+2008-06-06 (new feature)[TIP 230] [chan push]; [chan pop] (kupries)
+
+2008-06-08 (enhancement)[1973096] bytecompiled [uplevel] scripts (sofer)
+
+2008-06-12 (platform support) Solaris static build with DTrace (steffen)
+
+2008-06-12 (platform support) Solaris/amd64 gcc 64bit support (steffen)
+
+2008-06-13 (new feature)[TIP 285] [interp cancel]; Tcl_CancelEval() (mistachkin)
+
+2008-06-20 (bug fix)[1999035] make [interp bgerror $i] act in $i (porter)
+
+2008-06-23 (bug fix)[1972879] bad path intrep caching (porter)
+
+2008-06-24 (bug fix)[1999176] crash in [glob -dir {} a] (porter)
+
+2008-06-25 (bug fix)[1999119] Support TM packages in Safe Base (kupries)
+
+--- Released 8.6a1, June 25, 2008 --- See ChangeLog for details ---
+
+2008-06-29 (bug fix)[2004480] plug memory leaks (ade,porter,steffen)
+
+2008-07-01 (enhancement)[1905562] embed recursion limit in RE engine (fellows)
+
+2008-07-03 (bug fix)[1969717] fix package finding on Samba shares (jos)
+
+2008-07-03 (bug fix)[1987821] mem leak in [seek] on reflected chan (kupries)
+
+2008-07-13 (enhancement)[2017110] new Non-Recursive Evaluation implementation
+enables deep Tcl evaluation stacks without deep C stacks. (sofer)
+
+2008-07-20 (enhancement)[2008248] dict->list preserve item intreps (pasadyn)
+
+2008-07-21 (bug fix)[582506] imported cmds now fire execution traces (sofer)
+
+2008-07-21 (bug fix)[2015723] [file] bad use of inodes on Windows (thoyts)
+
+2008-07-21 (new feature)[TIP 304] [chan pipe] (ferrieux)
+
+2008-07-21 (bug fix)[2021443] more consistent "wrong # args" msgs (nijtmans)
+
+2008-07-21 (enhancement) [info frame] returns file data in more cases (kupries)
+
+2008-07-29 (bug fix)[2030670] fix rare panic in TclStackFree (pasadyn,sofer)
+
+2008-08-01 Tcl_Finalize() no longer called implicitly on DLL_PROCESS_DETACH.
+
+2008-08-05 (enhancement)[1994512] async connect logic simplified (jenglish)
+
+2008-08-06 (bug fix)[2040295] stopped supplying a workaround for bugs
+in Itcl's use of [namespace code]. Itcl now supplies its own workaround.
+ *** POTENTIAL INCOMPATIBILITY for older Itcl releases ***
+
+2008-08-06 (bug fix)[2039178] repaired guard against dispatching oo methods
+in a deleted interp. (porter)
+
+2008-08-08 tzdata updated to Olson's tzdata2008e (kenny)
+
+2008-08-11 (bug fix)[2046846] 64bit support for http zlib crc (thoyts)
+=> http 2.7.1
+
+2008-08-11 (enhancement) automatic [package provide] for TMs (kupries)
+
+2008-08-17 (bug fix)[2055782] crash involving Tcl_ConcatObj (sofer)
+
+2008-08-21 (new feature) CONST-ified Tcl routines passing (Tcl_ObjType *),
+(Tcl_Filesystem *), or (Tcl_Timer *) arguments (nijtmans,porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-08-21 (bug fix)[2065115] Restored ***= regexp functioning (hobbs,porter)
+
+--- Released 8.6a2, August 25, 2008 --- See ChangeLog for details ---
+
+2008-08-29 (bug fix)[2082299] Install TclOO header files (fellows)
+
+2008-09-01 oo methods called during interp deletion no longer skipped if
+they do not need the dying interp (fellows)
+
+2008-09-02 (support) Dropped support for pre-ANSI compilers. (porter)
+
+2008-09-04 (bug fix)[2093947] var unset trace in coroutine (fellows,sofer)
+
+2008-09-10 (enhancement) efficient list->dict conversion (elby,fellows)
+
+2008-09-10 (bug fix)[2102930] faulty numLevels count (madden,sofer)
+
+2008-09-16 (bug fix)[2114165] eval failure following cancel (sofer)
+
+2008-09-17 (bug fix)[2116053] export [min] and [max] from tcl::mathfunc (sofer)
+
+2008-09-22 (new feature)[TIP 320] oo common variable declaration (fellows)
+
+2008-09-24 (new feature)[TIP 316] portable access to Tcl_StatBuf (fellows)
+
+2008-09-24 (new feature)[TIP 323] [file delete], [file mkdir] zero pathNames (porter)
+
+2008-09-25 (new feature)[TIP 315] new var: tcl_platform(pathSeparator) (vu,fellows)
+
+2008-09-25 (new feature)[TIP 323] [global], [variable] zero varNames (porter)
+
+2008-09-26 (new feature)[TIP 323] [lassign], [namespace upvar], [my variable] zero varNames (porter)
+
+2008-09-26 (new feature)[TIP 323] [tcl::tm::path add|remove] zero pathNames (porter)
+
+2008-09-26 (new feature)[TIP 323] [lrepeat] zero elements; zero repeats (porter)
+
+2008-09-27 (bug fix)[2130992] prevent overflow crash in [lrepeat] (fellows)
+
+2008-09-28 (new feature)[TIP 314] ensemble parameters before subcommand (hellström,fellows)
+
+2008-09-29 (new feature)[TIP 318] revised defaults for [string trim] (poser)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-09-29 (new feature)[TIP 313] [lsearch -bisect] (spjuth)
+
+2008-09-29 (new feature)[TIP 326] [lsort -stride] (elby)
+
+2008-09-29 (new feature)[TIP 323] [linsert] zero elements (porter)
+
+2008-09-29 (new feature)[TIP 323] [glob] zero patterns (porter)
+
+2008-10-02 (new feature)[TIP 330] interp->result access disabled (kenny)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-10-03 (new feature)[TIP 265] Tcl_ParseArgv() (bromley)
+
+2008-10-03 (new feature)[TIP 195] [tcl::prefix] (spjuth)
+
+2008-10-04 (new feature) CONST-ified Tcl routines Tcl_GetIndexFromObj,
+Tcl_RegisterConfig, Tcl_InitCustomHashTable, and routines passing
+(Tcl_ChannelType *). (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-10-04 (bug fix)[2059262] unload only libraries marked unloadable (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-10-05 (new feature)[TIP 331] [lset listVar end+1 $value] (kenny)
+
+2008-10-05 (bug fix)[2143288] correct bad isqrt() results (boffey,kenny)
+
+2008-10-05 (new feature) CONST-ified return value of the
+Tcl_FSFileAttrStringsProc prototype. (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY for Tcl_Filesystems ***
+
+2008-10-07 (new feature)[TIP 327] [tailcall] (sofer)
+
+2008-10-07 (new feature)[TIP 328] [coroutine],[yield],[info coroutine] (sofer)
+
+2008-10-08 (bug fix)[2151707] fix stack trace from variable trace (porter)
+
+2008-10-10 (bug fix)[2155658] crash in oo method export (fellows)
+
+--- Released 8.6a3, October 10, 2008 --- See ChangeLog for details ---
+
+2008-10-13 (bug fix) Fix ability to join threads on 64-bit Windows (thoyts)
+
+2008-10-23 (bug fix)[2186888] Direct-eval [for] handling of [continue] was
+broken by NRE reform (sofer,porter)
+
+2008-10-24 (bug fix) fix failure to read SHOUTcast streams (thoyts)
+=> http 2.7.2
+
+2008-10-27 (enhancement) system encoding at startup is now "iso8859-1", and
+no longer "identity". Use of identity encoding minimized (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2008-10-31 (bug fix)[2200824] revised [oo::define] to include caller
+context when resolving names. (nassau,fellows)
+
+2008-11-10 (bug fix)[2255235] [platform::shell::LOCATE] update (ring,kupries)
+=> platform::shell 1.1.4
+
+2008-11-13 (bug fix)[2269431] VFS [load] -> tempfile litter (ficicchia,nijtmans)
+
+2008-11-26 (bug fix)[2114900] updated tclIndex file (cassoff,kenny)
+
+2008-11-27 (bug fix)[2251175] [{*}{\{}] errors (hellström,ferrieux,porter)
+
+2008-11-29 (new feature)[TIP 210] [file tempfile] (techentin,fellows)
+
+2008-11-30 (bug fix)[2362156] [clock]: colon in format string (mizuno,kenny)
+
+2008-12-02 (bug fix)[2270477] hang in channel finalization (ferrieux,kupries)
+
+2008-12-02 (new feature)[TIP 336] Tcl_*ErrorLine() routines. Direct access
+to the errorLine field of the interp struct denied by default. (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+ *** Define USE_INTERP_ERRORLINE to restore access for legacy code ***
+
+2008-12-04 (bug fix)[2385549] [file normalize] failed on some paths (porter)
+
+2008-12-05 (new feature)[TIP 307] Tcl_TransferResult() (leunissen,fellows)
+
+2008-12-05 (new feature)[TIP 335] Tcl_InterpActive() (mistachkin,fellows)
+
+2008-12-09 (new feature)[TIP 337] Tcl_BackgroundException() (porter)
+
+2008-12-10 (new feature)[TIP 341] >1 [dict filter] patterns (hellström,fellows)
+
+2008-12-10 (new feature)[TIP 343] [format %b $n] [scan $s %b] (ferrieux)
+
+2008-12-10 tzdata updated to Olson's tzdata2008i (kenny)
+
+2008-12-11 (new feature)[TIP 234] [zlib] and Tcl_Zlib*() (sheffers,fellows)
+
+2008-12-11 (bug fix)[2407783] spoil ChannelState when channel name passes
+among multiple interps (kupries)
+
+2008-12-12 (new feature)[TIP 322] Tcl_NR*() routines to enabled non-recursive
+evaluation in extensions (sofer,kenny)
+
+2008-12-09 (new feature)[TIP 338] Tcl_*StartupScript() (porter)
+ *** POTENTIAL INCOMPATIBILITY for callers of Tcl*Startup* routines ***
+
+2008-12-16 (new feature)[TIP 329] [try] [throw] (davel,fellows)
+
+2008-12-17 (new feature)[TIP 308] package tdbc 1.0b1 (kenny)
+
+2008-12-18 (new feature)[TIP 332] [close $chan read|write] (ferrieux)
+
+2008-12-18 (bug fix)[2444274] panic in long commands from {*} (goth,porter)
+
+--- Released 8.6b1, December 19, 2008 --- See ChangeLog for details ---
+
+2008-12-27 [TIP 234] Tcl_Zlib* interface revisions (fellows)
+ *** INCOMPATIBILITY with interface of 8.6b1 ***
+
+2009-01-02 (platform support)[878333] IRIX compat for mkstemp() (fellows)
+
+2009-01-03 (bug fix)[2481670] [clock add] error message (talvo)
+
+2009-01-05 (bug fix)[2412068] NR-enable [source] (fellows)
+
+2009-01-06 (bug fix)[2489836] crash unknown method dispatch (nadkarni,fellows)
+
+2009-01-06 (bug fix)[2481109] fix context of instance name check (fellows)
+
+2009-01-08 (enhancement) more -errorcode values (fellows)
+
+2009-01-19 (new feature) CONFIG_INSTALL_DIR - where tclConfig.sh goes (cassoff)
+
+2009-01-19 (platform support) better tools for BSD ports (cassoff)
+
+2009-01-21 (bug fix)[2458202] exit crash with [chan create]d channel (kupries)
+
+2009-01-26 (bug fix)[2446662] uniformly declare EOF on RST on sockets (ferrieux)
+
+2009-01-26 (bug fix)[1028264] delay WSACleanup() from under our feet (ferrieux)
+
+2009-01-29 (bug fix)[2519474] Tcl_FindCommand() bug exposed by oo (fellows)
+
+2009-01-29 (bug fix)[2537939] Fix Tcl_OOInitStubs() for no-stubs build (fellows)
+
+2009-02-04 (bug fix)[2561746] [string repeat] overflow crash (porter)
+
+2009-02-05 (enhancement) optimize string operations on bytearrays (fellows)
+
+2009-02-12 (bug fix) enable simpler [oo::define] extension (ferri,fellows)
+
+2009-02-15 (bug fix)[2603158] Tcl_AppendObjToObj: append to self crash (porter)
+
+2009-02-17 (platform support) MSVC and _WIN64 (hobbs)
+
+2009-02-20 (bug fix)[2571597] [file pathtype /a] wrong result (nadkarni,porter)
+
+2009-03-03 (bug fix)[2662434] [zlib crc32] result now unsigned (gavilan,fellows)
+
+2009-03-15 (platform support) translate SIGINFO where defined (BSD) (teterin)
+
+2009-03-15 (bug fix)[2687952] TSD struct memleak (mistachkin)
+
+2009-03-18 (bug fix)[2688184] memleak in [file normalize] (mistachkin)
+
+2009-03-20 (bug fix)[2597185] crash in Tcl_AppendStringToObj (porter)
+
+2009-03-20 (bug fix)[2561794,2669109,2494093,2553906] string overflow (porter)
+
+2009-03-22 (bug fix)[2502037] NR-enable [namespace unknown] (sofer)
+
+2009-03-27 (bug fix)[2710920] [file dirname|tail /foo/] errors (epler,porter)
+
+2009-04-08 (bug fix)[2570363] unsafe [eval]s in tcltest (bron,porter)
+=> tcltest 2.3.1
+
+2009-04-08 (platform support) more Darwin kernel patterns (steffen)
+=> platform 1.0.4
+
+2009-04-09 (bug fix)[26245326] [http::geturl] connection failures (golovan)
+=> http 2.7.3
+
+2009-04-10 (new feature) Darwin: embeddable CoreFoundation notifier (steffen)
+
+2009-04-10 (bug fix)[1961211] Darwin [load] back-compatibility (steffen)
+
+2009-04-09 (new feature) http chunked+gzip modes (thoyts)
+=> http 2.8.0
+
+2009-04-11 (enhancement) clarified cmd name resolution in oo forwards (fellows)
+
+20009-04-19 (bug fix)[2715421] http: excess bytes after POST (thoyts)
+=> http 2.8.1
+
+2009-04-30 (bug fix)[2486550] coroutine in [interp invokehidden] (sofer)
+
+2009-05-07 (bug fix)[2785893] find command in deleted namespace (sofer)
+
+2009-05-08 (bug fix)[2414858] tailcall in oo constructor (fellows)
+
+2009-05-14 (new subcommand)[TIP 354] [info object namespace] (fellows)
+
+2009-05-29 (platform support) account for ia64_32 (kupries)
+=> platform 1.0.5
+
+2009-06-02 (bug fix)[2798543] incorrect [expr] integer ** results (porter)
+
+2009-06-10 (bug fix)[2801413] overflow in [format] (porter)
+
+2009-06-13 (bug fix)[2802881] corrected compile env context (tasada,porter)
+
+2009-06-17 (redesign) reduced ambition of [exit] finalization with aim to
+avoid otherwise very tricky multi-thread finalization bugs. (staplin,ferrieux)
+ *** POTENTIAL INCOMPATIBILITY for exit handlers ***
+
+2009-06-26 (platform support) updates for Xcode 3.1 & 3.2 (steffen)
+
+2009-06-30 (platform support) clang static analyzer macros (steffen)
+
+2009-07-01 (bug fix)[2806622] Win: bad tcl_platform(user) value (thoyts)
+
+2009-07-05 (bug fix) zlib support asynch [chan copy] on chan transform (fellows)
+
+2009-07-12 (bug fix)[1895546] TclOO support for Itcl 4 method caching (fellows)
+
+2009-07-13 (bug fix)[1605269] NR-related [info frame] fixes (kupries)
+
+2009-07-14 (bug fix)[2821401] NR-enable direct eval [switch] (kenny)
+
+2009-07-16 (bug fix)[2819200] underflow settings on MIPS systems (porter)
+
+2009-07-19 (interface)[TIP 354] new routine Tcl_GetObjectName() (fellows)
+
+2009-07-20 (performance) favor [string is] success cases over empty (fellows)
+
+2009-07-22 (interface) removed TclpPanic() routine (nijtmans)
+
+2009-07-23 (bug fix)[2820349] plug event leak in notifier (mistachkin)
+
+2009-07-24 (bug fix)[2826248] crash in Tcl_GetChannelHandle (sonnenburg,kupries)
+
+2009-07-31 (bug fix)[2830354] overflow in [format] (misch,porter)
+
+2009-08-06 (bug fix)[2827000] reflected channels can signal EGAIN (kupries)
+
+2009-08-12 (new feature)[TIP 353] Tcl_NRExprObj() (porter)
+
+2009-08-20 (bug fix)[2823276] NR-enable [if], [for], [while] (fellows)
+
+2009-08-20 (bug fix)[2806250] EIAS violation in ~foo pathnames (porter)
+
+2009-08-21 (bug fix)[2837800] [glob */foo] return ./~x/foo (porter)
+
+2009-08-24 (bug fix) nested event loop notifier w/TkAqua Cocoa (alaoui,steffen)
+
+2009-08-25 (bug fix) [info frame] account for continuation lines (kupries)
+
+2009-08-27 (bug fix)[2845535] overflows in [format] (porter)
+
+2009-09-01 (bug fix) improved error message in tcltest (porter)
+=> tcltest 2.3.2
+
+2009-09-11 (bug fix)[2849860] http handle "quoted" charset value (fellows)
+=> http 2.7.4
+
+2009-09-11 (enhancement)[2314561] [subst] now bytecompiled, NR-enabled (porter)
+
+2009-09-24 (new feature)[TIP 356] Tcl_NRSubstObj() (porter)
+
+2009-10-04 (bug fix)[2569449] Core Foundation memory bug in Tiger (steffen)
+
+2009-10-06 (bug fix) repair intrep loss in slave interp evaluations
+introduced by first versions of the NRE conversion (nadkarni,porter)
+
+2009-10-06 (bug fix)[1941434] broken tclTomMath.h includes (porter)
+
+2009-10-07 (bug fix)[2871908] leaked hash table (mistachkin,kupries)
+
+2009-10-08 (bug fix)[2874678] bignum leak in [dict incr] (fellows)
+
+2009-10-17 (bug fix)[2629338] crash in var unset traces (raney,fellows)
+
+2009-10-19 (bug fix)[2107634] extend [read] and [gets] to Tcl string limits
+(morrison,parker,porter)
+
+2009-10-21 (bug fix)[2882561] Haiku OS signal support (morrison,fellows)
+
+2009-10-22 (bug fix)[2883857] [my varname arr(index)] (boudaillier,fellows)
+
+2009-10-23 (bug fix) 0-length writes: spurious SIG_PIPE (teterin,kupries)
+
+2009-10-24 Broken DST applied EU rules to US zones (lehenbauer,kenny)
+
+2009-10-29 (bug fix)[2800740] halved bignum memory on 64-bit systems (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2009-11-05 (bug fix)[2854929] TM search path support in Safe Base (kupries)
+
+2009-11-05 (enhancement) rewrite of the Safe Base commands (kupries)
+
+2009-11-11 (bug fix)[2888099] [close] loses ENOSPC error (khomoutov,ferrieux)
+
+2009-11-11 (bug fix)[2891171] RFC 3986 compliance for ? in URL (nijtmans)
+=> http 2.8.2
+
+2009-11-12 (bug fix)[2895565] [fcopy -size] miscounts when converting encodings
+(kupries)
+
+2009-11-16 (bug fix)[2891556] encoding finalization crash (mistachkin,ferrieux)
+
+2009-11-18 (bug fix)[2849797] consistent names for std chans (nijtmans,fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2009-11-19 (enhancement) [load]able Tcltest extension (nijtmans)
+
+2009-11-24 (bug fix)[2893771] [file stat] on Win locked files (thoyts)
+
+2009-11-24 (bug fix)[2903011] crash call destructor from constructor (fellows)
+
+2009-12-03 (bug fix)[2906841] Safe Base [glob ../*] fixes (fellows)
+
+2009-12-09 (bug fix)[2901998] consistent I/O buffering (ferrieux,kupries)
+
+2009-12-11 (bug fix)[2806407] NR-enabled coroutines (sofer)
+
+2009-12-16 (bug fix)[2913616] msgcat: improved safe interp support (fellows)
+=> msgcat 1.4.3
+
+2009-12-22 (bug fix)[2918962] [lsort -index -stride] crash (moore,fellows)
+
+2009-12-23 (bug fix)[2913625] [info script/nameof] in safe interps (fellows)
+
+2009-12-28 (bug fix)[2891362] enable time limit in child interps (fellows)
+
+2009-12-29 (bug fix)[2922555] [binary decode hex { }] crash (thoyts)
+
+2009-12-29 (bug fix)[2895741] enable min(), max() in safe interps (fellows)
+
+2009-12-30 (bug fix)[2824981] guard [unknown] against [set] undef (sofer)
+
+2010-01-05 (bug fix)[2918610] [file rootname] corruption (magerya,porter)
+
+2010-01-18 (bug fix)[2932421] less [format %s] shimmer (ferrieux)
+
+2010-01-18 (bug fix)[2918110] [chan postevent] crash (bron,kupries)
+
+2010-01-21 (bug fix)[2910748] NR-enable epoch fallback direct eval (sofer)
+
+2010-01-30 (enhancement) [unset] now bytecompiled (fellows)
+
+2010-02-01 (bug fix)[2942697] faster match: some pathological regexp patterns
+(lane,fellows)
+
+2010-02-01 (bug fix)[2939073] [array unset] unset trace crash (ferrieux)
+
+2010-02-02 (bug fix)[2944404] crash in oo destructor (fellows)
+
+2010-02-02 (new feature) [array] is now a [namespace ensemble] (fellows)
+
+2010-02-05 (enhancement) [error] now bytecompiled (fellows)
+
+2010-02-08 (bug fix)[2947783] Tcl_Zlib*flate fail on shared values (fellows)
+
+2010-02-09 (enhancement) [try] now bytecompiled (fellows)
+
+2010-02-11 (bug fix)[2826551] line-sensitive matching in regexp (dejong)
+
+2010-02-11 (bug fix)[2949740] [open |noSuch rb] crash (kovalenko,fellows)
+
+2010-02-15 (bug fix)[2950259] harden (delete obj ns -> delete obj) (fellows)
+
+2010-02-21 (bug fix)[2954959] get sign of abs($zero) right (nijtmans)
+
+2010-02-22 (bug fix)[2762041] zlib chan transforms read EOF too early (kupries)
+
+2010-02-27 (bug fix)[801429] Tcl_SetMainLoop() thread safety (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-03-02 (enhancement) -fvisibility-hidden build support (nijtmans)
+
+2010-03-04 (bug fix)[2962664] [oo::class destroy] crash (fellows)
+
+2010-03-05 (interface) TclOO typedefs for function pointers (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-03-09 (bug fix)[2936225] stop [chan copy] to slow channel consuming all
+memory with buffer backup (ferrieux)
+
+2010-03-17 (bug fix)[2921116] crash in chan transfrom teardown (kupries)
+
+2010-03-19 (enhancement) [throw] now bytecompiled (fellows)
+
+2010-03-20 (enhancement) permit [fcopy] of > 2**31 bytes (fellows)
+
+2010-03-24 (new feature) [info object methodtype] (fellows)
+
+2010-03-24 (bug fix)[2383005] [return -errorcode] reject non-list (porter)
+
+2010-03-25 (bug fix)[2976504] broken fstatfs() call (reeuwijk,fellows)
+
+2010-03-30 (new feature)[TIP 362] [registry -32bit|-64bit] (courtney,fellows)
+=> registry 1.3
+
+2010-03-30 (bug fix)[2978773] refchan mem preservation (kupries)
+
+2010-04-02 (new feature)[TIP 357] Tcl_LoadFile, Tcl_FindSymbol, etc. (kenny)
+
+2010-04-05 (configure change)[TIP 364] default build: --enable-threads (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-04-02 (new feature)[TIP 348] [info errorstack], [return -errorstack]
+(ferrieux)
+
+2010-04-20 (enhancement) update bundled zlib to 1.2.5 (nijtmans)
+
+2010-04-29 (enhancement)[2992970] optimize bytearray appends (fellows)
+
+2010-05-19 (bug fix)[3004007] dict/list shimmer w/o string rep loss (fellows)
+
+2010-06-09 (bug fixes) platform: several fixes for 64 bit systems (kupries)
+=> platform 1.0.9
+
+2010-06-16 (bug fix)[3016135] [clock format] in he_IL locale (nijtmans)
+
+2010-06-18 (bug fix)[3017997] Add .cmd to file extensions for [exec] (fellows)
+
+2010-06-28 (bug fix)[3019634] support errno.h changes in MSVC++ 2010 (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-07-02 (enhancement) -errorcode for [expr] domain errors (fellows)
+
+2010-07-28 (bug fix)[3037525] crash deleting vars @ callframe pop (sofer)
+
+2010-08-04 (bug fix)[3034840] mem corrupt when refchan loses interp (kupries)
+
+2010-08-04 (enhancement) Win [load] use LOAD_WITH_ALTERED_SEARCH_PATH (hobbs)
+
+2010-08-04 (platform support) panic on detection of win9x system (hobbs)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-08-10 (fix) Handle non-null-terminated bytearrys in glob matching (hobbs)
+
+2010-08-11 (fix) copy-paste bug in [yield] implementation (sofer, goth)
+
+2010-08-11 (platform) Drop pre-aix 4.2 support, ldAix (hobbs)
+
+2010-08-14 (frq)[2819611] changed signatures of hash fnctions, delete-file, and get-native-path (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-08-15 (bug fix)[3045010] tweaked error message for wrong#args of lambda's (fellows)
+
+2010-08-18 (bug fix)[3004191] fixed safe [glob] (fellows)
+
+2010-08-21 (patch)[3034251] genStubs steal features of ttkGenStubs (nijtmans)
+
+2010-08-26 (bug fix)[1230554] configure, OSF-1 problems, windows manifest issues (hobbs)
+
+2010-08-30 (bug fix) [3046594,3047235,3048771] reimplemented tailcall (sofer)
+
+2010-08-31 fixed manifest handling on windows (hobbs, kupries)
+
+2010-08-31 windows makefile and stub changes (nijtmans)
+
+2010-09-01 (bug fix)[3057639] compiled lappend trace consistency (hobbs,kupries)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-09-01 fixed safe glob handling of -directory (kupries)
+
+2010-09-02 fixed safe glob handling of -join (kupries)
+
+2010-09-08 (bug fix)[3059922] build with mingw on amd64 (porter, mescalinum)
+
+2010-09-15 (bug fix)[3067036] stop hang in bytearray append (fellows)
+
+2010-09-22 unified set of link libraries between mingw and vc (nijtmans)
+
+2010-09-22 (bug fix)[3072640] protect writes to ::error* variables (sofer)
+
+2010-09-23 fix leak of return options [catch $err m constant] (porter, hobbs)
+
+2010-09-24 (bugfix)[3056775] fixed race condition in windows sockets (kupries)
+
+2010-09-24 (performance) string eq/cmp (hobbs)
+
+2010-09-26 (patch)[3072080] rewritten NRE core (sofer)
+
+2010-09-28 (new feature)[TIP 162] implementation of ipv6 sockets (max)
+
+2010-10-02 (bug fix)[3079830] properly invalidate string rep of dicts (fellows)
+
+2010-10-06 (bug fix)[3081065] fix writing to freed Tcl_Obj (porter)
+
+2010-10-08 fix in ipv6 code on windows (nijtmans)
+
+2010-10-09 fixed overallocation of execution stack (sofer)
+
+2010-10-11 windows unicode changes (nijtmans)
+
+2010-10-12 (bug fix)[3084338] fixed meamleak in ipv6 code (max)
+
+2010-10-13 (bug fix)[467523,983660] alt fix allows empty literal share (porter)
+
+2010-10-15 (bugfix)[3085863] updated unicode tables (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2010-10-16 refactored implementation of dict iteration (fellows)
+
+2010-10-17 (patch)[2995655] report inner contexts on error stack (ferrieux)
+
+2010-10-19 (bug fix)[3081008] fixed bytearray zlib interaction (fellows)
+
+2010-10-19 improved crc, appending to bytearray (fellows)
+
+2010-10-20 improved compilation of [dict for] (fellows)
+
+2010-10-26 Added private support to disable reverse dns (max)
+
+2010-10-26 Prevent crashes when querying socket options (fellows, max)
+
+2010-10-28 (bug fix)[3093120] prevent freeaddrinfo(NULL) (porter, virden)
+
+2010-10-29 (bug fix)[2905784] stop cycle waste in short [after] (ferrieux)
+
+2010-11-01 tzdata updated to Olson's tzdata2010o (kenny)
+
+2010-11-04 (bug fix)[3099086] Clarified docs of var substitution (fellows)
+
+2010-11-04 improved install targets (cassof)
+
+2010-11-04 improved testing of sockets (max)
+
+2010-11-05 (frq)[491789] setargv/unicode cmdline for MSVC (nijtmans)
+
+2010-11-09 (bug fix)[3105999] fixed memleak in OO var resolver (fellows)
+
+2010-11-15 (TIP 378)[3081184] improved TIP 280 performance (kupries)
+
+2010-11-16 (platform) VS 2005 SP1 MSVC compiler (nijtmans)
+
+2010-11-18 (bug fix)[3111059] leak in [namespace delete] w coroutines (sofer)
+
+2010-11-28 [3120139,3105247] Tcl_PrintDouble improvements (kenny)
+
+2010-11-29 (new cmd) [tcl::unsupported::inject] (ferrieux,sofer)
+
+2010-11-30 (enhancement) Restore TclFormatInt for performance (hobbs)
+
+2010-12-09 (new feature) [file] is now a [namespace ensemble] (fellows)
+
+2010-12-19 (bug fix) [fcopy -size 1 -command] asynchronous (ferrieux)
+
+2010-12-12 (platform) OpenBSD build improvements (cassoff)
+
+2010-12-17 (platform) Revisions to support rpm 4.4.2 (cassoff)
+
+2010-12-27 (bug fix) crash in [lsort] w multiple -index options (fellows)
+
+2010-12-30 (bug fix)[3142026] GrowEvaluationStack OBOE (harder,sofer)
+
+2011-01-18 (bug fix)[3001438] [info frame -1] crash (mccormack,fellows)
+
+2011-03-01 (performance)[3168398] optimize [interp cancel] (mistachkin)
+
+2011-03-05 (bug fix)[3185009] crash in OO variables (danckaert,fellows)
+
+2011-03-05 (new cmd) [tcl::unsupported::assemble] (ugurlu,kenny)
+
+2011-03-06 (bug fix)[3200987,3192636] parser buffer overruns (porter)
+
+2011-03-08 (bug fix)[3202905] failed intrep release of interp result (mccormack)
+
+2011-03-09 (bug fix)[3202171] repair [namespace inscope] optimizer (porter)
+
+2011-03-10 (new version) better tcltest reporting from child interps (fellows)
+=> tcltest 2.3.3
+
+2011-03-10 (new feature) [namespace] is now a [namespace ensemble] (fellows)
+
+2011-03-12 (interface) reduce casting by ckalloc(), ckfree() callers (fellows)
+
+2011-03-14 (bug fix) Fixes from libtommath 0.42.0 release (fellows)
+
+2011-03-21 (bug fix)[3216070] [load] extension from embed Tcl apps (nijtmans)
+ ***POTENTIAL INCOMPATIBILITY***
+
+2011-03-27 (performance) NRE: LIST lset foreach benchmark (twylite)
+
+2011-04-11 (bug fix)[3282869] coroutine + eval + locals crash (ferrieux,sofer)
+
+2011-04-13 (bug fix)[2662380] crash when variable append trace unsets (sofer)
+
+2011-04-13 (bug fix)[3285375] Buffer overflow in [concat] (porter)
+
+2011-05-02 (internals change) revised TclFindElement() interface (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2011-05-05 (enhancement) dict->list w/o string rep generation (porter)
+
+2011-05-10 (bug fix)[3173086] Crash parsing long lists (rogers,porter)
+
+2011-05-24 (enhancement) msgcat internal improvements (fellows)
+=> msgcat 1.4.4
+
+2011-05-25 (TIP 381) [info object|class call] [self call] [nextto] (fellows)
+
+2011-05-31 (bug fix)[3293874] let lists grow all the way to the limit (porter)
+
+2011-06-02 (bug fix)[3185407] cmd resolution epoch flaw (nadkarni,fellows)
+
+2011-06-13 (bug fix)[3315098] mem leak generating double string rep (neumann)
+
+2011-06-22 (new feature) DEB_HOST_MULTIARCH support (kupries)
+=> platform 1.0.10
+
+2011-07-15 (bug fix)[3357771] Prevent circular refs in bytecode (porter)
+
+2011-07-28 tzdata updated to Olson's tzdata2011h (porter)
+
+2011-08-01 (bug fix)[3383616] memleak exposed by XOTcl (neumann,sofer)
+
+Many more Tcl built-in command errors now set an -errorcode.
+
+--- Released 8.6b2, August 8, 2011 --- See ChangeLog for details ---
+
+2011-07-02 (bug fix)[3349507] correct double(1[string repeat 0 23]) (kenny)
+
+2011-07-19 (bug fix)[3371644] Tcl_ConvertElement() segfault (sader, ferrieux)
+
+2011-07-21 (bug fix)[3372130] hypot(.) segfault (nijtmans)
+
+2011-08-12 (bug fix)[3389764] memleaks due to reference cycles in dup'd paths
+
+2011-08-15 (bug fix)[3390272] leak of [info script] value (porter)
+
+2011-08-17 (bug fix)[3393150] bignum leaks in Tcl_Get*() routines (porter)
+
+2011-08-18 (bug fix)[3393714] [string toupper] overflow (nijtmans)
+
+2011-08-30 (bug fix)[3398794] panic in interp limit setting (gavlian,fellows)
+
+2011-09-08 (bug fix)[3401704] revised expr parser to permit function names
+like "nano()" instead of parsing as "nan o()" with missing op (duquette,porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2011-09-10 (bug fix)[3400658] wrong num args msg with TclOO (rsooltan,fellows)
+
+2011-09-13 (bug fix)[3390638] solaris studio cc workaround (kechel,porter)
+
+2011-09-13 (bug fix)[3405652] DTrace workaround (michelson,porter)
+
+2011-09-16 (bug fix)[3391977] -headers overrides -type (ziegenhagen,fellows)
+=> http 2.8.3
+
+2011-09-16 (TIP 388) New \Uhhhhhhhh syntax (nijtmans)
+
+2011-10-06 (enhancement) bytecode compile [dict with] (fellows)
+
+2011-10-11 (bug fix)[2935503] [file stat] returns bad mode (nadkarni,nijtmans)
+
+2011-10-20 (bug fix)[3418547] cmd lits and custom resolvers (soberning,fellows)
+
+2011-10-31 (bug fix)[3414754] EIAS violation in fs paths (porter)
+
+2011-11-22 (bug fix)[3354324] Win: [file mtime] sets wrong time (nijtmans)
+
+2011-11-30 (bug fix)[967195] Simply args passed to child processes (nijtmans)
+=> tcltest 2.3.4
+
+2011-12-07 (bug fix)[3444754] fix [string tolower \u01C5] (nijtmans)
+
+2011-12-11 (update)[3457031] Update [[:print:]] to Unicode 6.0 (nijtmans)
+
+2011-12-24 (bug fix)[3464428] fix [string is graph \u0120] (nijtmans)
+
+2012-01-08 (bug fix)[3470928] zoneinfo trouble with Windhoek data file (kenny)
+
+2012-01-13 (bug fix)[3472316] fix retrieval of socket error (fellows)
+
+2012-01-21 (bug fix)[3475667] [regexp] buffer read overflow (sebres)
+
+2012-01-22 (bug fix)[3475264] [dict exists] return 0, not error (fellows)
+
+2012-01-25 (bug fix)[3474460] [oo::copy] var resolution list (fellows)
+
+2012-01-26 (bug fix)[3475569,3479689] mem corrupt in fs path (sebres,porter)
+
+2012-01-30 (enhancement) improve bytecode compile of [catch] (fellows)
+
+2012-02-02 (bug fix)[2974459,2879351,1951574,1852572,1661378,1613456] Fix
+problems where [file *able] would return false results on Win/Samba (porter)
+
+2012-02-06 (bug fix)[3484621] bump bytecode epoch on exec traces (kuhn,sofer)
+
+2012-02-15 (bug fix)[3487626] crash compiling [dict for] (fellows)
+
+2012-02-15 (enhancement) bytecode compile [lrange],[lreplace] (fellows)
+
+2012-02-17 (bug fix)[2233954] compile problem on AIX & Android (nijtmans)
+
+2012-02-29 (bug fix)[3466099] BOM in Unicode (nijtmans)
+
+2012-03-07 (bug fix)[3498327] RFC 3986 compliance (kupries)
+
+2012-03-26 (TIP 380) New builtin class [oo::Slot] (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2012-03-27 (TIP 397) <cloned> method to extend [oo::copy] (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2012-03-27 (TIP 395) New subcommand [string is entier] (fellows)
+
+2012-04-02 (TIP 396) New command [yieldto] (fellows)
+
+2012-04-04 (bug fix)[3514761] crash combining objects and ensembles (fellows)
+
+2012-04-09 (bug fix)[2712377] [info vars] and oo variables (fellows)
+
+2012-04-09 (bug fix)[3396896] no dups in oo var lists (fellows)
+
+2012-04-11 (bug fix)[3448512] [clock scan 1958-01-01] fail on Win (nijtmans)
+
+2012-04-15 (bug fix)[3517696] fix flush of zlib chan xform (fellows)
+
+2012-04-18 tzdata updated to Olson's tzdata2012c (kenny)
+
+2012-04-28 (TIP 398) exit non-blocking chan without flush (ferrieux)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2012-05-02 (enhancement) Better use of Intel cpuid instruction (nijtmans)
+
+2012-05-03 (bug fix)[3428753] Unbreak synchronous [socket -async] (porter)
+
+2012-05-10 (bug fix)[2812981] force consistent config of Tcl+pkgs (ferrieux)
+
+2012-05-10 (bug fix)[473946] correct send of special characters (nijtmans)
+
+2012-05-17 (bug fix)[3445787] fix [file] ensemble in Safe Base (fellows)
+
+2012-05-17 (bug fix)[2964715] fix [glob] in Safe Base (fellows)
+
+2012-05-17 (bug fix)[3106532] proper [switch -indexvar] values (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2012-05-21 (TIP 106) New -binary option to [dde execute|poke] (oehlmann)
+=> dde 1.4.0
+
+2012-05-23 (bug fix)[3525907] [zlib push decompress] & [chan event]
+(fellows,ferrieux,kupries)
+
+2012-05-28 (bug fix)[3529949] Protect ~ paths in Safe Base (fellows)
+
+2012-06-21 (bug fix)[3362446] [registry keys] failure (nijtmans)
+=> registry 1.3.0
+
+2012-06-25 (bug fix)[3537605] [encoding dirs a b] error message (fellows)
+
+2012-06-25 (bug fix)[3024359] crash when multi-thread concurrent [file system]
+and Tcl_FSMountsChanged(). (porter)
+
+2012-06-29 (bug fix)[3536888] fix locale guessing (oehlmann,nijtmans)
+
+2012-07-05 (bug fix)[1189293] make "<<" redirect binary safe (porter)
+
+2012-07-08 (bug fix)[3531209] accept IPv6 URLs (max)
+=> http 2.8.4
+
+2012-07-24 (bug fix) stop mem corruption in stacked channel events (max,porter)
+
+2012-07-25 (bug fix)[3546275] [auto_execok] search match [exec] (danckaert)
+
+2012-07-27 (update)[3464401] Support Unicode 6.2 (nijtmans)
+
+2012-08-20 (bug fix)[3559678] [file normalize] EIAS failure (phao,dgp)
+
+2012-08-25 (bug fix)[3561330] Ukranian translation of "March" (teterin)
+
+2012-09-07 (TIP 404) New msgcat commands [mcflset], [mcflmset] (oehlmann)
+=> msgcat 1.5.0
+
+Many revisions to better support a Cygwin environment (nijtmans)
+
+Dropped support for OS X versions less than 10.4 (Tiger) (fellows)
+
+--- Released 8.6b3, September 18, 2012 --- See ChangeLog for details ---
+
+2012-09-20 (enhancement) full Unicode support (nijtmans)
+=> dde 1.4.0
+
+2012-09-20 (enhancement) update bundled zlib to 1.2.7 (nijtmans)
+
+2012-10-03 (bug fix) exit panic on stacked std channel (griffin,porter)
+
+2012-10-14 (bug fix) [tcl::Bgerror] crash on non-dict options (nijtmans)
+
+2012-10-16 (TIP 400) New [zlib] options to set compression dict (fellows)
+
+2012-10-16 (TIP 405) New commands [lmap] and [dict map] (fellows)
+
+2012-10-24 (enhancement) [dict unset] now bytecompiled (fellows)
+
+2012-11-05 (TIP 413) Revisions to default [string trim*] trimset (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2012-11-05 (enhancement) Now bytecompiled: [array exists], [array set],
+[array unset], [dict create], [dict exists], [dict merge], [format],
+[info commands], [info coroutine], [info level], [info object],
+[namespace current], [namespace code], [namespace qualifiers], [namespace tail],
+[namespace which], [regsub], [self], [string first], [string last],
+[string map], [string range], [tailcall], [yield]. (fellows)
+
+2012-11-06 (bug fix)[3581754] avoid multiple callback on keep-alive (fellows)
+=> http 2.8.5
+
+2012-11-07 tzdata updated to Olson's tzdata2012i (kenny)
+
+2012-11-13 (bug fix)[3567063] thread fp settings from master (mistachkin)
+
+2012-11-14 (bug fix)[2933003] tempfile creation in $TMPDIR (fellows)
+
+2012-11-15 (TIP 416) New [load] options -global and -lazy (nijtmans)
+
+2012-11-20 (bug fix)[3033307] base64 trail whitespace (kovalenko,goth)
+
+2012-12-03 (bug fix) [configure] query broke init from argv (porter)
+=> tcltest 2.3.5
+
+2012-12-13 (bug fix)[3595576] crash: [catch {} -> noSuchNs::var] (sofer,porter)
+
+2012-12-13 (bug fix) crash: [zlib gunzip $data -header noSuchNs::var] (porter)
+
+--- Released 8.6.0, December 20, 2012 --- See ChangeLog for details ---
+
+2012-12-22 (bug fix)[3598150] DString to Tcl_Obj memleak (afredd)
+
+2012-12-27 (bug fix)[3598580] Tcl_ListObjReplace() refcount fix (nijtmans)
+
+2013-01-04 (bug fix) memleak in [format] compiler (fellows)
+
+2013-01-08 (bug fix)[3092089,3587096] [file normalize] on junction points
+
+2013-01-09 (bug fix)[3599395] status line processing (nijtmans)
+2013-01-23 (bug fix)[2911139] repair async connection management (fellows)
+=> http 2.8.6
+
+2013-01-26 (bug fix)[3601804] Darwin segfault platformCPUID (nijtmans)
+
+2013-01-28 (enhancement) improve ensemble bytecode (fellows)
+
+2013-01-30 (enhancement) selected script code improvements (fradin)
+=> tcltest 2.3.6
+
+2013-01-30 (bug fix)[3599098] update to handle glibc banner changes (kupries)
+=> platform 1.0.11
+
+2013-01-31 (bug fix)[3598282] make install DESTDIR support (cassoff)
+
+2013-02-05 (bug fix)[3603434] [file normalize a:/] flaw in VFS (porter,griffin)
+
+2013-02-09 (bug fix)[3603695] $obj varname resolution rules (venable,fellows)
+
+2013-02-11 (bug fix)[3603553] zlib flushing errors (vampiera,fellows)
+
+2013-02-14 (bug fix)[3604576] msgcat use of Windows registry (oehlmann,nijtmans)
+=> msgcat 1.5.1
+
+2013-02-19 (bug fix)[2438181] report errors in trace handlers (yorick)
+
+2013-02-21 (bug fix)[3605447] unbreak [namespace export -clear] (porter)
+
+2013-02-23 (bug fix)[3599194] fallback IPv6 routines (afredd,max)
+
+2013-02-27 (bug fix)[3606139] stop crash in [regexp] (lane)
+
+2013-03-03 (bug fix)[3606258] major serial port update (english)
+
+2013-03-06 (bug fix)[3606683] [regexp (((((a)*)*)*)*)* {}] hangs
+(grathwohl,lane,porter)
+
+2013-03-12 (enhancement) better build support for Debian arch (shadura)
+
+2013-03-19 (bug fix)[2893771] [file stat] on locked files (thoyts,nijtmans)
+
+2013-03-21 (bug fix)[2102614] [auto_mkindex] ensemble support (griffin)
+
+2013-03-27 Tcl_Zlib*() routines tolerate NULL interps (porter
+
+2013-04-04 (bug fix) Support URLs with query but no path (max)
+=> http 2.8.7
+
+2013-04-08 (bug fix)[3610026] regexp crash on color overflow (linnakangas)
+
+2013-04-29 (enhancement) [array set] compile improvement (fellows)
+
+2013-04-30 (enhancement) broaden glibc version detection (kupries)
+=> platform 1.0.12
+
+2013-05-06 (platform support) Cygwin64 (nijtmans)
+
+2013-05-15 (enhancement) Improved [list {*}...] compile (fellows)
+
+2013-05-16 (platform support) mingw-4.0 (nijtmans)
+
+2013-05-19 (platform support) FreeBSD updates (cerutti)
+
+2013-05-20 (bug fix)[3613567] access error temp file creation (keene)
+
+2013-05-20 (bug fix)[3613569] temp file open fail can crash [load] (keene)
+
+2013-05-22 (bug fix)[3613609] [lsort -nocase] failed on non-ASCII (fellows)
+
+2013-05-28 (bug fix)[3036566] Use language packs (Vista+) locale (oehlmann)
+=> msgcat 1.5.2
+
+2013-05-29 (bug fix)[3614102] [apply {{} {list [if 1]}}] stack woes (porter)
+
+2013-06-03 Restored lost performance appending to long strings (elby,porter)
+
+2013-06-05 (bug fix)[2835313] [while 1 {foo [continue]}] crash (fellows)
+
+2013-06-17 (bug fix)[a876646] [:cntrl:] includes \x00 to \x1f (nijtmans)
+
+2013-06-27 (bug fix)[983509] missing encodings for config values (nijtmans)
+
+2013-06-27 (bug fix)[34538b] apply DST in 2099 (lang)
+
+2013-07-02 (bug fix)[32afa6] corrected dirent64 check (griffin)
+
+2013-07-06 tzdata updated to Olson's tzdata2013d (kenny)
+
+2013-07-10 (bug fix)[86fb5e] [info frame] in compiled ensembles (porter)
+
+2013-07-18 (bug fix)[1c17fb] revisd syntax errorinfo that shows error (porter)
+
+2013-07-26 (bug fix)[6585b2] regexp {(\w).*?\1} abb (lane)
+
+2013-07-29 [string is space \u202f] => 1 (nijtmans)
+
+2013-08-01 [a0bc85] Limited support for fork with threads (for Rivet) (nijtmans)
+
+2013-08-01 (bug fix)[1905562] RE recursion limit increased to support
+reported usage of large expressions (porter)
+
+2013-08-02 (bug fix)[9d6162] superclass slot empty crash (vdgoot,fellows)
+
+2013-08-03 (enhancement)[3611643] [auto_mkindex] support TclOO (fellows)
+
+2013-08-14 (bug fix)[a16752] Missing command delete callbacks (porter)
+
+2013-08-15 (bug fix)[3610404] reresolve traced forwards (porter)
+
+2013-08-15 Errors from execution traces become errors of the command (porter)
+
+2013-08-23 (bug fix)[8ff0cb9] Tcl_NR*Eval*() schedule only, as doc'd (porter)
+
+2013-08-29 (bug fix)[2486550] enable [interp invokehidden {} yield] (porter)
+
+2013-09-01 (bug fix)[b98fa55] [binary decode] fail on whitespace (reche,fellows)
+
+2013-09-07 (bug fix)[86ceb4] have tm path favor first provider (neumann,porter)
+
+2013-09-09 (bug fix)[3609693] copied object member variable confusion (fellows)
+=> TclOO 1.0.1
+
+2013-09-17 (bug fix)[2152292] [binary encode uuencode] corrected (fellows)
+
+2013-09-19 (bug fix)[3487626] segfaults in [dict] compilers (porter)
+
+2013-09-19 (bug fix)[31661d2] mem leak in [lreplace] (ade,porter)
+
+Many optmizations, improvements, and tightened stack management in bytecode.
+
+--- Released 8.6.1, September 20, 2013 --- https://core.tcl-lang.org/tcl/ for details
+
+2013-09-27 (enhancement) improved ::env synchronization (fellows)
+
+2013-10-20 (bug fix)[2835313] segfault from
+[apply {{} {while 1 {a {*}[return -level 0 -code continue]}}}] (fellows)
+
+2013-10-22 (bug fix)[3556215] [scan %E%G%X] support (fellows)
+
+2013-10-25 (bug fix)[3eb2ec1] upper case scheme names in url. (nijtmans)
+=> http 2.8.8
+
+2013-10-29 (bug fix)[414d103] HP-UX: restore [exec] in threaded Tcl (nijtmans)
+
+2013-11-04 (bug fix) C++ friendly stubs struct declarations (nijtmans)
+
+2013-11-05 (bug fix)[426679e] OpenBSD man page rendering (nijtmans)
+
+2013-11-12 (bug fix)[5425f2c] [fconfigure -error] breaks [socket -async]
+
+2013-11-20 (bug fix) Improved environment variable management (nijtmans)
+=> tcltest 2.3.7
+
+2013-11-21 (platforms) Support for Windows 8.1 (nijtmans)
+
+2013-12-06 (RFE) improved [foreach] bytecode (fellows)
+
+2013-12-10 (RFE) improved [lmap] bytecode (sofer)
+
+2013-12-11 (RFE) improved [catch] bytecode (sofer)
+
+2013-12-18 (bug fix)[0b874c3] SEGV [coroutine X coroutine Y info frame] (porter)
+
+2013-12-20 (RFE) reduced numeric conversion in bytecode (sofer)
+
+2014-01-07 (RFE) compilers for [concat], [linsert], [namespace origin],
+[next], [string replace], [string tolower], [string totitle], [string toupper],
+[string trim], [string trimleft], [string trimright] (fellows)
+
+2014-01-22 (RFE) compilers for [nextto], [yieldto] (fellows)
+
+2014-02-02 (RFE) compiler for [string is] (fellows)
+
+2014-02-06 (bug fix)[a4494e2] panic in test namespace-13.2 (porter)
+
+2014-03-20 (bug fix)[2f7cbd0] FreeBSD 10.0 build failure (nijtmans)
+
+2014-03-26 (RFE)[b42b208] Cygwin: [file attr -readonly -archive -hidden -system]
+(nijtmans)
+
+2014-03-27 (bug fix) segfault iocmd-23.11 (porter)
+
+2014-04-02 (bug fix)[581937a] Win: readable event on async connect failure
+
+2014-04-04 (bug fix)[581937a,97069ea] async socket connect fail (oehlmann)
+
+2014-04-10 (bug fix)[792641f] Win: no \ in normalized path (nijtmans)
+
+2014-04-11 (bug fix)[3118489] protect NUL in filenames (nijtmans)
+
+2014-04-15 (bug fix)[88aef05] segfault iocmd-21.20 (porter)
+
+2014-04-16 (update) Win: use Winsock 2.2 (nijtmans)
+
+2014-04-16 (bug fix)[d19a30d] segfault clock-67.[23] (sebres)
+
+2014-04-21 (bug fix) segfault iocmd-21.2[12] (porter)
+
+2014-04-22 (bug fix) segfault iogt-2.4 (porter)
+
+2014-04-23 (bug fix)[3493120] memleak in thread exit
+
+2014-05-08 refactoring of core I/O functions (porter)
+
+2014-05-09 (bug fix)[3389978] Win: extended paths support (nijtmans)
+
+2014-05-09 (bug fix) segfault iocmd-32.1 (porter)
+
+2014-05-11 (bug fix)[6d2f249] nested ensemble compile failure (fellows)
+
+2014-05-17 (RFE)[47d6625] wideint support in [lsearch -integer] [lsort -integer] (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-05-20 (bug fix) Stop eof and blocked state leaking thru stacks (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-05-20 (bug fix)[13d3af3] Win: socket -async tried only first IP address
+
+2014-05-28 (platforms) work around systems that fail when a shared library
+is deleted after it is [load]ed (kupries)
+
+2014-05-31 (bug fix) chan events on pipes must be on proper ends (porter)
+
+2014-06-04 (bug fix) socket-2.12 (porter)
+
+2014-06-05 (bug fix) io-12.6 (kupries,porter)
+
+2014-06-15 (RFE)[1b0266d] [dict replace|remove] return canonical dict (fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-06-16 (bug fix) socket-2.13 workaround broken select() (porter)
+
+2014-06-20 (bug fix)[b47b176] iortrans.tf-11.0 (porter)
+
+2014-06-22 (RFE)[2f9df4c] -cleanup scripts before -out compare (nijtmans)
+
+2014-07-04 (update) Update Unicode data to 7.0 (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-07-08 (bug) [chan push] converts blocked writes to error (aspect,porter)
+
+2014-07-10 (bug fix)[7368d2] memleak Tcl_SetVar2(..,TCL_APPEND_VALUE) (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-07-11 (bug) leaks in SetFsPathFromAny, [info frame] (porter)
+
+2014-07-15 (bug) compress dict leak in zlib xform channel close (porter)
+
+2014-07-17 (bug fix)[9969cf8] leak trace data in coroutine deletion (porter)
+
+2014-07-18 (RFE)[b43f2b4] fix [lappend] multi performance collapse (fellows)
+
+2014-07-19 (bug fix)[75b8433] memleak managing oo instance lists (porter)
+
+2014-07-21 (bug fix)[e6477e1] memleak in AtForkChild() (porter)
+
+2014-07-22 (bug fix)[12b0997] memleak in iocmd.tf-32.0 (porter)
+
+2014-07-28 (RFE) Optimized binary [chan copy] by moving buffers (porter)
+
+2014-07-30 (enhancement) use refcounts, not Tcl_Preserve to manage lifetime
+of Tcl_Channel (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-07-31 (bug fix)[a84a720] double free in oo chain deletion (porter)
+
+2014-08-01 (bug fix)[e75faba] SEGV [apply {{} {namespace upvar a b [x]}}] (porter)
+
+2014-08-01 (update) "macosx*-i386-x86_64" "macosx-universal" no longer compatible (kupries)
+=> platform 1.0.13
+
+2014-08-12 tzdata updated to Olson's tzdata2014f (kenny)
+
+2014-08-17 (bug fix)[7d52e11] [info class subclasses oo::object] should
+include ::oo::class (fellows)
+
+2014-08-25 (TIP 429) New command [string cat] (leitgeb,ferrieux)
+
+--- Released 8.6.2, August 27, 2014 --- https://core.tcl-lang.org/tcl/ for details
+
+2014-08-28 (bug)[b9e1a3] Correct Method Search Order (nadkarni,fellows)
+=> TclOO 1.0.3
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-09-05 (bug)[ccc2c2] Regression [lreplace {} 1 1] (bron,fellows)
+
+2014-09-08 (bug)<oo-1.18.2> Crash regression in [oo::class destroy] (porter)
+
+2014-09-09 (bug)[84af11] Regress [regsub -all {\(.*} a(b) {}] (fellows)
+
+2014-09-10 (bug)[cee90e] [try {} on ok {} - on return {} {}] panic (porter)
+
+2014-09-20 (feature) [tcl::unsupported::getbytecode] disassember (fellows)
+
+2014-09-27 (enhancement) [string cat] bytecode optimization (leitgeb,ferrieux)
+
+2014-09-27 (bug)[82521b] segfault in mangled bytecode (ogilvie,sofer)
+
+2014-10-02 (bug)[bc5b79] Hang in some [read]s of limited size (rogers,porter)
+
+2014-10-03 (bug)[bc1a96] segfault in [array set] of traced array (tab,porter)
+
+2014-10-08 (bug)[59a2e7] MSVC14 compile support (dower,nijtmans)
+
+2014-10-10 (bug)[ed29c4] [fcopy] treats [blocked] as error (rowen,porter)
+
+2014-10-10 (bug)[bf7135] regression in Tcl_Write() interface (porter)
+
+2014-10-18 (bug)[10dc6d] fix [gets] on non-blocking channels (fassel,porter)
+
+2014-10-26 Support for Windows 10 (nijtmans)
+
+2014-10-31 (bug)[dcc034] restore [open comX: r+] (lll,nijtmans)
+
+2014-11-05 (bug)[214cc0] Restore [lappend v] return value (sayers,porter)
+
+2014-11-06 (bug)[5adc35] Stop forcing EOF to be permanent (porter)
+
+--- Released 8.6.3, November 12, 2014 --- https://core.tcl-lang.org/tcl/ for details
+
+2014-11-21 (bug)[743338] Win: socket error encoding (ladayaroslav,nijtmans)
+
+2014-12-01 (bug) restore tbcload/tclcompiler support (kupries)
+
+2014-12-03 (bug)[0c043a] Fix compiled [set var($) val] (porter)
+
+2014-12-04 (bug)[d2ffcc] Limit $... and bareword parsing to ASCII (ladayaroslav,porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2014-12-06 (bug)[c6cd4a] Win: hang in async socket connection (shults,nadkarni)
+
+2014-12-10 tzdata updated to Olson's tzdata2014j (venkat)
+
+2014-12-13 fix header files installation on OS X (houben)
+
+2014-12-17 (TIP 427) [fconfigure $h -connecting, -peername, -sockname] (oehlmann,rmax)
+
+2014-12-18 (bug)[af08c8] Crash in full finalize encoding teardown (porter)
+
+2014-12-18 (bug)[7c187a] [chan copy] crash (io-53.17) (benno,porter)
+
+2015-01-26 (bug)[df0848] Trouble with INFINITY macro (dower,nijtmans)
+
+2015-01-29 (bug) Stop crashes when extension var resolvers misbehave (porter)
+
+2015-01-29 (bug)[088727] [read] past EOF (io-73.4) (fenugrec,porter)
+
+2015-02-11 tzdata updated to Olson's tzdata2015a (venkat)
+
+2015-02-20 (bug)[32b615] Fix compiled [lreplace] (lreplace-4.[345]) (aspect)
+
+2015-03-10 (enhancement) Revise OS X notifier for better Cocoa (walzer)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+--- Released 8.6.4, March 12, 2015 --- https://core.tcl-lang.org/tcl/ for details
+
+2015-03-19 (bug)[e66e44] Win: Ctrl-C/Ctrl-Break in console not EOF (nadkarni)
+
+2015-03-21 (bug)[d87cb1] Proper tailcall from compiled ensembles (sofer)
+
+2015-04-23 (bug)[19ea02] Win: shared read from linked dirs (bogdan,oehhar)
+
+2015-04-24 (bug)[879a07] Incomplete chars @ buffer ends (leunissen,porter)
+
+2015-04-29 (bug)[894da1] Hang flushing blocking channels (yorick)
+
+2015-05-14 (enhance)[b9d043] Default use of gzip transfer encoding (fellows)
+=> http 2.8.9
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2015-05-15 (bug)[9dd1bd] destructor [self] after failed constructor (calvo,fellows)
+
+2015-05-15 (bug)[0f42ff] [tailcall] combined with [next] (aspect,fellows)
+
+2015-05-18 (bug)[c11a51] http: race condition in -accept option (fellows)
+
+2015-05-19 (enhance) More pure lists from compiled [list] (porter,fellows)
+
+2015-05-27 (enhancement) Relax memdebug constraint on extensions (kupries)
+
+2015-06-03 (bug)[268b23] crash in traced [expr] (execute-11.2)(tomkinson,porter)
+
+2015-06-11 (bug)[478c44] Memleak in zlib compresion errors (mistachkin)
+
+2015-06-16 (bug)[e770d9] Higher baud on serial channels (woods,nijtmans)
+
+2015-06-18 (update) Update Unicode data to 8.0 (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2015-06-18 (bug)[a4cb3f] compiled [lreplace] handling of end (bron,aspect)
+
+2015-06-23 (enhance) Use Unicode SendMessageTimeout() (nijtmans)
+=> registry 1.3.1
+
+2015-06-25 (TIP 412) msgcat dynamic locale change and package private locale (oehlmann)
+=> msgcat 1.6.0
+
+2015-07-05 (bug)[a0ece9] crash in traced [expr] (execute-11.3) (hans,porter)
+
+2015-07-10 (TIP 436) [info object isa] favors 'false' over error (fellows)
+=> TclOO 1.0.4
+
+2015-07-15 (bug)[b1534b][9bad63] writes beyond buffer bounds (hanno,porter)
+
+2015-07-18 (bug)[a3309d] Memleak in compiled [unset a($i)] (jeff,porter)
+
+2015-07-23 (bug)[57945b] lock in forking/multi-threading (neumann,mistachkin)
+
+2015-07-29 (bug)[3e7eca] Allocation overflow in expr parsing (rickyb,porter)
+
+2015-07-30 (bug)[f00009] Win: Memleak in [file] (rp,sebres)
+
+2015-07-31 (bug) Correct problems found in Coverity audit (sofer)
+
+2015-08-19 (bug)[00189c] MSVC 14: semi-static UCRT support (dower,nijtmans)
+
+2015-08-26 (bug)[0df7a1] Tolerate getcwd() failures (cato,nijtmans)
+
+2015-09-21 (bug)[1115587][a3c350][d7ea9f][0e0e15][187d7f] Many fixes and
+improvements to regexp engine from Postgres (lane,porter,fellows,seltenreich)
+
+2015-09-23 (enhance) hash lookup microoptimization (hipp)
+
+2015-09-23 (bug)[e0a7b3] Input buffer draining & file events (griffin,porter)
+
+2015-09-29 (bug)[219866] Cygwin support error (yorick,nijtmans)
+=> platform 1.0.14
+
+2015-10-06 (bug)[b42a85] Win: [file normalize ~user] wrong dir (nadkarni)
+
+2015-10-21 (bug)[1080042][8f2450] More regexp from Postgres (lane,porter)
+
+2015-10-23 (bug)[4a0c16] [clock] react to msgcat locale change (oehlmann)
+
+2015-11-10 (bug)[261a8a] Overflow segfault in I/O translation (brooks,porter)
+
+2015-11-20 (bug)[40f628] ListObjReplace callers fail to detect max (porter)
+
+2015-11-30 (enhance)[32c574] Improve list growth performance (brooks,porter)
+
+2015-12-11 (bug)[c9eb6b] tolerate unset ::env(TZ) (gahr, nijtmans)
+
+2016-01-29 (TIP 440) tcl_platform(engine) -- Tcl implementation (mistachkin)
+
+2016-02-03 (bug)[25842c] stream [zlib deflate] fails with 0 input (ade,fellows)
+
+2016-02-04 (bug)[3d96b7][593baa][cf74de] crashes in OO teardown (porter,fellows)
+
+2016-02-22 (bug)[9b4702] [info exists env(missing)] kills trace (nijtmans)
+
+--- Released 8.6.5, February 29, 2016 --- https://core.tcl-lang.org/tcl/ for details
+
+2016-03-01 (bug)[803042] mem leak due to reference cycle (porter)
+
+2016-03-08 (bug)[bbc304] reflected watch race condition (porter)
+
+2016-03-17 (bug)[fadc99] compile-5.3 (rodriguez,porter)
+
+2016-03-17 (enhancement)[1a25fd] compile [variable ${ns}::v] (porter)
+
+2016-03-20 (bug)[1af8de] crash in compiled [string replace] (harder,fellows)
+
+2016-03-21 (bug)[d30718] segv in notifier finalize (hirofumi,nijtmans)
+
+2016-03-23 (enhancement)[7d0db7] parallel make (yarda,nijtmans)
+
+2016-03-23 [f12535] enable test bindings customization (vogel,nijtmans)
+
+2016-04-04 (bug)[47ac84] compiled [lreplace] fixes (aspect,ferrieux,fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-04-08 (bug)[866368] RE \w includes 'Punctuation Connector' (nijtmans)
+
+2016-04-08 (bug)[2538f3] Win crash Tcl_OpenTcpServer() (griffin)
+
+2016-04-10 [07d13d] Restore TclBlend support lost in 8.6.1 (buratti)
+
+2016-05-13 (bug)[3154ea] Mem corruption in assembler exceptions (tkob,kenny)
+
+2016-05-13 (bug) registry package support any Unicode env (nijtmans)
+=> registry 1.3.2
+
+2016-05-21 (bug)[f7d4e] [namespace delete] performance (fellows)
+
+2016-06-02 (TIP 447) execution time verbosity option (cerutti)
+=> tcltest 2.4.0
+
+2016-06-16 (bug)[16828b] crash due to [vwait] trace undo fail (dah,porter)
+
+2016-06-16 (enhancement)[4b61af] good [info frame] from more cases (beric)
+
+2016-06-21 (bug)[c383eb] crash in [glob -path a] (oehlmann,porter)
+
+2016-06-21 (update) Update Unicode data to 9.0 (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-06-22 (bug)[16896d] Tcl_DString tolerate append to self. (dah,porter)
+
+2016-06-23 (bug)[d55322] crash in [dict update] (yorick,fellows)
+
+2016-06-27 (bug)[dd260a] crash in [chan configure -dictionary] (madden,aspect)
+
+2016-07-02 (bug)[f961d7] usage message with parameters with spaces (porter)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-02 (enhancement)[09fabc] Sort order of -relateddir (lanam)
+
+2016-07-07 (bug)[5d7ca0] Win: [file executable] for .cmd and .ps1 (nadkarni)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-08 (bug)[a47641] [file normalize] & Windows junctions (nadkarni)
+
+2016-07-09 [ae61a6] [file] handling of Win hardcoded names (CON) (nadkarni)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-09 [3613671] [file owned] (more) useful on Win (nadkarni)
+
+2016-07-09 (bug)[1493a4] [namespace upvar] use of resolvers (beric,fellows)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-10 (bug)[da340d] integer division in clock math (nadkarni)
+
+2016-07-20 tzdata updated to Olson's tzdata2016f (venkat)
+
+--- Released 8.6.6, July 27, 2016 --- https://core.tcl-lang.org/tcl/ for details
+
+2016-09-07 (bug)[c09edf] Bad caching with custom resolver (neumann,nijtmans)
+
+2016-09-07 (bug)[4dbdd9] Memleak in test var-8.3 (mr_calvin,porter)
+
+2016-10-03 (bug)[2bf561] Allow empty command as alias target (yorick,nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-10-04 (bug)[4d5ae7] Crash in async connects host no address (gahr,fellows)
+
+2016-10-08 (bug)[838e99] treat application/xml as text (gahr,fellows)
+=> http 2.8.10
+
+2016-10-11 (bug)[3cc1d9] Thread finalization crash in zippy (neumann)
+
+2016-10-12 (bug)[be003d] Fix [scan 0x1 %b], [scan 0x1 %o] (porter)
+
+2016-10-14 (bug)[eb6b68] Fix stringComp-14.5 (porter)
+
+2016-10-30 (bug)[b26e38] Fix zlib-7.8 (fellows)
+
+2016-10-30 (bug)[1ae129] Fix memleak in [history] destruction (fellows)
+
+2016-11-04 (feature) Provisional Tcl 9 support in msgcat and tcltest (nijtmans)
+=> msgcat 1.6.1
+=> tcltest 2.4.1
+
+2016-11-04 (bug)[824752] Crash in Tcl_ListObjReplace() (gahr,porter)
+
+2016-11-11 (bug)[79614f] invalidate VFS mounts on sytem encoding change (yorick)
+
+2016-11-14 OSX: End panic() as legacy support macro; system conflicts (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2016-11-15 (bug) TclOO fix stops crash mixing Itcl and snit (fellows)
+
+2016-11-17 (update) Reconcile libtommath updates; purge unused files (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2017-01-09 (bug)[b87ad7] Repair drifts in timer clock (sebres)
+
+2017-01-17 (update) => zlib 1.2.11 (nijtmans)
+
+2017-01-31 (bug)[39f630] Revise Tcl_LinkVar to tolerate some prefixes (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2017-02-01 (bug)[d0f7ba] Improper NAN optimization. expr-22.1[01] (aspect)
+
+2017-02-26 (bug)[25842c] zlib stream finalization (aspect)
+
+2017-03-07 (deprecate) Remove unmaintained makefile.bc file (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2017-03-14 (enhancement) [clock] and [encoding] are now ensembles (kenny)
+
+2017-03-15 (enhancement) several [clock] subcommands bytecoded (kenny)
+
+2017-03-23 tzdata updated to Olson's tzdata2017b (jima)
+
+2017-03-29 (bug)[900cb0] Fix OO unexport introspection (napier)
+
+2017-04-12 (bug)[42202b] Nesting imbalance in coro injection (nadkarni,sebres)
+
+2017-04-18 (bug)[bc4322] http package support for safe interps (nash,nijtmans)
+
+2017-04-28 (bug)[f34cf8] [file join a //b] => /b (neumann,porter)
+
+2017-05-01 (bug)[8bd13f] Windows threads and pipes (sebres,nijtmans)
+
+2017-05-01 (bug)[f9fe90] [file join //a b] EIAS violation (aspect,porter)
+
+2017-05-04 (bug) Make test filesystem-1.52 pass on Windows (nijtmans)
+
+2017-05-05 (bug)[601522] [binary] field spec overflow -> segfault (porter)
+
+2017-05-08 (bug)[6ca52a] http memleak handling keep-alive (aspect,nijtmans)
+=> http 2.8.11
+
+2017-05-29 (bug)[a3fb33] crash in [lsort] on long lists (sebres)
+
+2017-06-05 (bug)[67aa9a] Tcl_UtfToUniChar() revised handling invalid UTF-8 (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2017-06-08 (bug)[2738427] Tcl_NumUtfChars() corner case utf-4.9 (nijtmans)
+
+2017-06-22 (update) Update Unicode data to 10.0 (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2017-06-22 (TIP 473) Let [oo::copy] specify target namespace (fellows)
+
+2017-06-26 (bug)[46f801] Repair autoloader fragility (porter)
+
+2017-07-06 (bug)[adb198] Plug memleak in TclJoinPath (sebres,porter)
+
+2017-07-17 (bug)[fb2208] Repeatable tclIndex generation (wiedemann,nijtmans)
+
+--- Released 8.6.7, August 9, 2017 --- https://core.tcl-lang.org/tcl/ for details
+
+2017-08-10 [array names -regexp] supports backrefs (goth)
+
+2017-08-10 Fix gcc build failures due to #pragma placement (cassoff,fellows)
+
+2017-08-29 (bug)[b50fb2] exec redir append stdout and stderr to file (coulter)
+
+2017-08-31 (bug)[2a9465] http state 100 continue handling broken (oehlmann)
+=> http 2.8.12
+
+2017-09-02 (bug)[0e4d88] replace command, delete trace kills namespace (porter)
+
+2017-10-19 (bug)[1a5655] [info * methods] includes mixins (fellows)
+
+2017-10-23 tzdata updated to Olson's tzdata2017c (jima)
+
+2017-10-24 (bug)[fc1409] segfault in method cloning, oo-15.15 (coulter,fellows)
+
+2017-11-03 (bug)[6f2f83] More robust [load] for ReactOS (werner)
+
+2017-11-08 (bug)[3298012] Stop crash when hash tables overflow 32 bits (porter)
+
+2017-11-14 (bug)[5d6de6] Close failing case of [package prefer stable] (kupries)
+
+2017-11-17 (bug)[fab924] Fix misleading [load] message on Windows (oehlmann)
+
+2017-12-05 (bug)[4f6a1e] Crash when ensemble map and list are same (sebres)
+
+2017-12-06 (bug)[ce3a21] file normalize failure when tail is empty (porter)
+
+2017-12-08 (new)[TIP 477] nmake build system reform (nadkarni)
+
+2017-12-19 (bug)[586e71] EvalObjv exception handling at level #0 (sebres,porter)
+
+--- Released 8.6.8, December 22, 2017 --- https://core.tcl-lang.org/tcl/ for details
+
+2018-02-11 (enhance) stop blocking conversion of object to/from class (coulter)
+
+2018-02-12 (enhance) NR-enable [package require] (coulter)
+
+2018-02-14 (bug)[9fd5c6] crash in object deletion, test oo-11.5 (coulter)
+
+2018-02-14 (bug)[3c32a3] crash deleting object with class mixed in (coulter)
+
+2018-02-15 (platform) stop using -lieee, removed from glibc-2.27 (porter)
+***POTENTIAL INCOMPATIBILITY for math programs that embed Tcl***
+
+2018-02-23 (bug)[8e6a9a] bad binary [string match], test string-11.55 (porter)
+
+2018-03-05 (bug)[1873ea] repair multi-thread std channel init (sebres)
+
+2018-03-09 (bug)[db36fa] broken bytecode for index values (porter)
+
+2018-03-13 (bug) broken compiled [string replace], test string-14.19 (porter)
+
+2018-03-14 (bug) [string trim*] engine crashed on invalid UTF (sebres)
+
+2018-04-17 (bug) missing trace in compiled [array set], test var-20.11 (porter)
+
+2018-04-22 (bug)[46a241] crash in unset array with search, var-13.[23] (goth)
+
+2018-04-30 (bug)[27b682] race made [file delete] raise "no such file" (sebres)
+
+2018-06-04 (bug)[925643] 32/64 cleanup of filesystem DIR operations (sebres)
+
+2018-06-18 (bug) leaks in TclSetEnv and env cache (coulter)
+
+2018-06-24 (bug)[3592747] [yieldto] dying namespace, tailcall-14.1 (coulter)
+
+2018-07-09 (bug)[270f78] race in [file mkdir] (sebres)
+
+2018-07-12 (bug)[3f7af0] [file delete] raised "permission denied" (sebres)
+
+2018-07-26 (bug)[d051b7] overflow crash in [format] (sebres)
+
+2018-08-29 revised quoting of [exec] args in generated command line (sebres)
+***POTENTIAL INCOMPATIBILITY***
+
+2018-09-20 HTTP Keep-Alive with pipelined requests (nash)
+=> http 2.9.0
+
+2018-09-27 (new)[TIP 505] [lreplace] accepts all out of range indices (porter)
+
+2018-10-04 (bug) Prevent crash from NULL keyName (nijtmans)
+=> registry 1.3.3
+
+2018-10-26 (enhance) advance dde version (nijtmans)
+=> dde 1.4.1
+
+2018-10-27 tzdata updated to Olson's tzdata2018g (jima)
+
+2018-10-29 Update tcltest package for Travis support (fellows)
+=> tcltest 2.5.0
+
+2018-11-09 (bug)[35a8f1] overlong string length of some lists (owens)
+
+2018-11-16 (bug)[00d04c] Repair [binary encode base64] (sebres)
+
+- Released 8.6.9, November 16, 2018 - details at https://core.tcl-lang.org/tcl/ -
+
+2018-11-22 (bug)[7a9dc5] [file normalize ~/~foo] segfault (sebres)
+
+2018-12-30 (bug)[3cf3a9] variable 'timezone' deprecated in vc2017 (nijtmans)
+
+2019-01-09 (bug)[cc1e91] [list [list {*}[set a " "]]] regression (sebres)
+
+2019-02-01 (bug)[e3f481] tests var-1.2[01] (sebres)
+
+2019-03-01 (new) Update to Unicode 12.0 (nijtmans)
+
+2019-03-05 (new)[TIP 527] New command [timerate] (sebres)
+
+2019-03-08 (bug)[39fed4] [package require] memory validity (hume,porter)
+
+2019-04-23 (new) New command tcl::unsupported::corotype (fellows)
+
+2019-05-04 (bug) memlink when namespace deletion kills linked var (porter)
+
+2019-05-28 (new) README file converted to README.md in Markdown (nijtmans)
+
+2019-06-17 (bug)[8b9854] [info level 0] regression with ensembles (porter)
+
+2019-06-20 (bug)[6bdadf] crash multi-arg write-traced [lappend] (fellows,porter)
+
+2019-06-21 (bug)[f8a33c] crash Tcl_Exit before init (brooks,sebres)
+
+2019-08-27 (bug)[fa6bf3] Bytecode fails epoch recovery at numLevel=0 (sebres)
+
+2019-08-29 (bug)[fec0c1] C stack overflow compiling bytecode (ade,sebres)
+
+2019-09-12 tzdata updated to Olson's tzdata2019c (jima)
+
+2019-09-20 (new) registry/dde no longer need -DUNICODE (nijtmans)
+=> registry 1.3.4
+=> dde 1.4.2
+
+2019-10-02 (bug)[16768d] Fix [info hostname] on NetBSD (rytaro)
+
+2019-10-23 (new) libtommath updated to release 1.2.0 (nijtmans)
+
+2019-10-25 OSX: system Tcl deprecated. End default use of its packages. (walzer)
+
+2019-10-28 (bug)[bcd100] bad fs cache when system encoding changes (coulter)
+
+2019-11-15 (bug)[135804] segfault in [next] after destroy (coulter,sebres)
+
+2019-11-18 (bug)[13657a] application/json us text, not binary (noe,nijtmans)
+=> http 2.9.1
+
+- Released 8.6.10, Nov 21, 2019 - details at https://core.tcl-lang.org/tcl/ -
+
+2019-12-03 (bug)[3cd9be] Corner case in surrogate handling (nijtmans)
+
+2019-12-09 (new) Add tcltest::(Setup|Eval|Cleanup|)Test (coulter,sebres)
+=> tcltest 2.5.2
+
+2019-12-12 (new) Add 3 libtommath functions to stub table (nijtmans)
+
+2019-12-23 (bug)[ce3b9f] compilation errors with clang, windows msys2 (nijtmans)
+
+2019-12-27 (bug)[1de6b0] [expr 1e2147483648] => 0.0 (kbk)
+
+2020-01-04 (bug)[912886] tis-620 encoding fails to load (coulter)
+
+2020-01-13 (bug)[0b9332] Win: support system encoding init to utf-8 (jedlička)
+
+2020-01-17 (bug)[8cd2fe] [unload] corrupted list of loaded packages (berc)
+
+2020-01-17 (bug)[5d989f] segfault in lsort for large list length (sebres)
+
+2020-01-30 (bug) Reset WSAGetLastError()/errno in channel close (nijtmans)
+
+2020-02-17 (bug) Win: avoid create of legacy error-vars on init phase (sebres)
+
+2020-02-25 (bug) release refs when setting class's superclasses fails (dkf)
+
+2020-02-26 (bug) C++ compiler compatibility for registry and dde (nijtmans)
+=> registry 1.3.5
+=> dde 1.4.3
+
+2020-03-05 (new) Update to Unicode-13 (nijtmans)
+
+2020-03-16 (bug)[8f89e2] Win: env var encoding, env-2.5 (sebres, nijtmans)
+
+2020-03-27 (bug)[767e07] Tcl_Get(Range|UniChar) validate index inputs (nijtmans)
+
+2020-03-28 (bug)[8edfce] [binary encode base64] & multi-byte wrapchars (dgp)
+
+2020-03-28 (bug)[ffeb20] [binary decode base64] ignore invalid chars (dgp)
+See RFC 2045
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-03-31 (bug)[b8e82d] some -maxlen values break uuencode round trip (dgp)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-04-01 (bug)[f58371] Fileevent run in proper thread (bron,sebres)
+
+2020-04-13 (bug)[afa4b2] TclNeedSpace bug; tests util-8.5 .. util-8.11 (dgp)
+
+2020-04-13 (bug)[085913] Tcl_DStringAppendElement # quoting precision (dgp)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-04-13 (bug)[a7f685] test util-5.52 (dgp)
+
+2020-04-13 (bug)[c61818] Tcl_UtfPrev regression (dgp)
+
+2020-04-15 (bug)[8af92d] zlib transform issue, bad inflate (sebres)
+
+2020-04-16 (bug)[5e6346] Tcl_UtfPrev handling of overlong sequences (dgp)
+
+2020-04-27 (bug)[45ca23] [string tolower] inconsistency (dgp)
+
+2020-04-30 (bug)[da2352] init [info hostname] with DNS, not NetBIOS (nadkarni)
+
+2020-05-11 (bug)[d402ff] Win32 potential crash when using main() (werner)
+
+2020-05-13 (bug)[81242a] revised documentation for Tcl_UtfAtIndex() (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-05-13 (bug)[ed2980] Tcl_UtfToUniChar reads > TCL_UTF_MAX bytes (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-06-02 (bug) prevent segfault in parser (sebres)
+
+2020-06-21 (bug)[f81bec] http POST a binary file (alakendu,nash)
+=> http 2.9.2
+
+2020-06-23 (bug)[41c985] auto_path nonsense in Safe Base (nash)
+
+2020-06-24 (bug)[f70ce1] zlib multi-stream inflate acts only on first (sebres)
+
+2020-07-09 (bug)[a1bd37] [clock scan] new ISO format (clock-34.(19-24)) (sebres)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-07-10 (bug)[501974] [clock scan] +time zone (clock-34.(53-68)) (sebres)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-07-15 (bug)[3c6e47] compiled [lappend] performance, avoid copy (sebres)
+
+2020-07-16 (bug)[5bbd04] Fix index underflow (schwab)
+
+2020-07-27 (bug)[cb0373] http::geturl -keepalive fixes (nash)
+=> http 2.9.3
+
+2020-08-10 (bug)[29e884] cmd resolution cycle (namespace-57.0) (coulter,sebres)
+
+2020-08-12 (bug)[e87000] Tcl_BadChannelOption tolerate NULL (werner,nijtmans)
+
+2020-08-31 (TIP #581) disfavor Master/Slave terminology (nijtmans)
+=> opt 0.4.8
+
+2020-09-11 (bug)[3bc0f4] UBSan complains about body.chars[] usage (nijtmans)
+
+2020-09-17 (bug)[835c93] Support TIP 525 exit code for -singleproc 1 (nijtmans)
+=> tcltest 2.5.3
+
+2020-09-25 (new) force -eofchar \032 when evaluating library scripts (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-09-29 (bug)[0063cb] http::geturl -headers must be dict (oehlmann,nijtmans)
+
+2020-10-19 (bug)[cb4582] Update install-sh script (stu,nijtmans)
+
+2020-10-22 (bug)[c97593] Usage of gnu_printf in latest mingw-w64 (nijtmans)
+
+2020-10-26 (new)[48898a] improve error message consistency (stu)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-11-06 (new) revised case of module names (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2020-12-10 (bug)[ed5be7] Win: recognize "comx:" as serial port (oehlmann)
+
+2020-12-11 (new) support for msys2, Big Sur (nijtmans)
+=> platform 1.0.15
+
+2020-12-23 tzdata updated to Olson's tzdata2020e (jima)
+
+- Released 8.6.11, Dec 31, 2020 - details at https://core.tcl-lang.org/tcl/ -
+
+2021-02-02 (new) support for MacOS Big Sur updates (nijtmans)
+=> platform 1.0.17
+
+2021-02-15 (bug)[d43f96] [string trim*] broken for Emoji (werner)
+
+2021-02-16 (bug)[22324b] [string reverse] broken for Emoji (werner)
+
+2021-02-19 (bug)[1dab71,7c64aa] BRE broken by uninitialized value use (lane)
+
+2021-03-09 (bug)[8419c5] Unix tty channels tolerate EINTR (nijtmans)
+ *** POTENTIAL INCOMPATIBILITY ***
+
+2021-03-10 (bug)[4c591f] [string compare] EIAS violation (nijtmans)
+
+2021-04-08 (new) dde package installation compatible with Tcl 9 (nijtmans)
+=> dde 1.4.4
+
+2021-04-14 (bug)[266494] [concat foo [list #]] EIAS violation (porter)
+
+2021-05-03 (bug)[24b918] Save IO buffers from modern optimizers (rupprecht)
+
+2021-05-06 (new) support for POSIX error EILSEQ (nijtmans)
+
+2021-05-17 (bug)[688fcc] segfault during traced delete of alias (coulter)
+
+2021-06-22 (bug)[bad6cc] More secure build tool. CVE-2021-35331 (nijtmans)
+
+2021-07-17 (bug)[592a25] Win: segfault in Tcl_PutEnv() (danckaert,nijtmans)
+
+2021-09-02 (bug)[ccc448] segfault in ensemble rewrite machinery (coulter)
+
+2021-09-14 (new) Update to Unicode-14 (nijtmans)
+
+2021-10-08 (bug)[a8579d] failed proc argument spec processing (russell,coulter)
+
+2021-10-27 (new) support for MacOS Monterey (nijtmans)
+=> platform 1.0.18
+
+2021-10-27 tzdata updated to Olson's tzdata2021e (nijtmans)
+
+- Released 8.6.12, Nov 5, 2021 - details at https://core.tcl-lang.org/tcl/ -
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