1 ============================================================================
2 User visible changes for btcd
3 A full-node bitcoin implementation written in Go
4 ============================================================================
6 Changes in 0.12.0 (Fri Nov 20 2015)
7 - Protocol and network related changes:
8 - Add a new checkpoint at block height 382320 (#555)
9 - Implement BIP0065 which includes support for version 4 blocks, a new
10 consensus opcode (OP_CHECKLOCKTIMEVERIFY) that enforces transaction
11 lock times, and a double-threshold switchover mechanism (#535, #459,
13 - Implement BIP0111 which provides a new bloom filter service flag and
14 hence provides support for protocol version 70011 (#499)
15 - Add a new parameter --nopeerbloomfilters to allow disabling bloom
17 - Reject non-canonically encoded variable length integers (#507)
18 - Add mainnet peer discovery DNS seed (seed.bitcoin.jonasschnelli.ch)
20 - Correct reconnect handling for persistent peers (#463, #464)
21 - Ignore requests for block headers if not fully synced (#444)
22 - Add CLI support for specifying the zone id on IPv6 addresses (#538)
23 - Fix a couple of issues where the initial block sync could stall (#518,
25 - Fix an issue which prevented the --onion option from working as
27 - Transaction relay (memory pool) changes:
28 - Require transactions to only include signatures encoded with the
29 canonical 'low-s' encoding (#512)
30 - Add a new parameter --minrelaytxfee to allow the minimum transaction
31 fee in BTC/kB to be overridden (#520)
32 - Retain memory pool transactions when they redeem another one that is
33 removed when a block is accepted (#539)
34 - Do not send reject messages for a transaction if it is valid but
35 causes an orphan transaction which depends on it to be determined
37 - Refrain from attempting to add orphans to the memory pool multiple
38 times when the transaction they redeem is added (#551)
39 - Modify minimum transaction fee calculations to scale based on bytes
40 instead of full kilobyte boundaries (#521, #537)
41 - Implement signature cache:
42 - Provides a limited memory cache of validated signatures which is a
43 huge optimization when verifying blocks for transactions that are
44 already in the memory pool (#506)
45 - Add a new parameter '--sigcachemaxsize' which allows the size of the
46 new cache to be manually changed if desired (#506)
47 - Mining support changes:
48 - Notify getblocktemplate long polling clients when a block is pushed
49 via submitblock (#488)
50 - Speed up getblocktemplate by making use of the new signature cache
53 - Implement getmempoolinfo command (#453)
54 - Implement getblockheader command (#461)
55 - Modify createrawtransaction command to accept a new optional parameter
57 - Modify listunspent result to include the 'spendable' field (#440)
58 - Modify getinfo command to include 'errors' field (#511)
59 - Add timestamps to blockconnected and blockdisconnected notifications
61 - Several modifications to searchrawtranscations command:
62 - Accept a new optional parameter 'vinextra' which causes the results
63 to include information about the outputs referenced by a transaction's
65 - Skip entries in the mempool too (#495)
66 - Accept a new optional parameter 'reverse' to return the results in
67 reverse order (most recent to oldest) (#497)
68 - Accept a new optional parameter 'filteraddrs' which causes the
69 results to only include inputs and outputs which involve the
70 provided addresses (#516)
71 - Change the notification order to notify clients about mined
72 transactions (recvtx, redeemingtx) before the blockconnected
74 - Update verifymessage RPC to use the standard algorithm so it is
75 compatible with other implementations (#515)
76 - Improve ping statistics by pinging on an interval (#517)
78 - Implement session command which returns a per-session unique id (#500,
80 - btcctl utility changes:
81 - Add getmempoolinfo command (#453)
82 - Add getblockheader command (#461)
83 - Add getwalletinfo command (#471)
84 - Notable developer-related package changes:
85 - Introduce a new peer package which acts a common base for creating and
86 concurrently managing bitcoin network peers (#445)
87 - Various cleanup of the new peer package (#528, #531, #524, #534,
89 - Blocks heights now consistently use int32 everywhere (#481)
90 - The BlockHeader type in the wire package now provides the BtcDecode
91 and BtcEncode methods (#467)
92 - Update wire package to recognize BIP0064 (getutxo) service bit (#489)
93 - Export LockTimeThreshold constant from txscript package (#454)
94 - Export MaxDataCarrierSize constant from txscript package (#466)
95 - Provide new IsUnspendable function from the txscript package (#478)
96 - Export variable length string functions from the wire package (#514)
97 - Export DNS Seeds for each network from the chaincfg package (#544)
98 - Preliminary work towards separating the memory pool into a separate
101 - Various documentation updates (#442, #462, #465, #460, #470, #473,
103 - Add installation instructions for gentoo (#542)
104 - Ensure an error is shown if OS limits can't be set at startup (#498)
105 - Tighten the standardness checks for multisig scripts (#526)
106 - Test coverage improvement (#468, #494, #527, #543, #550)
107 - Several optimizations (#457, #474, #475, #476, #508, #509)
108 - Minor code cleanup and refactoring (#472, #479, #482, #519, #540)
109 - Contributors (alphabetical order):
126 Changes in 0.11.1 (Wed May 27 2015)
127 - Protocol and network related changes:
128 - Use correct sub-command in reject message for rejected transactions
130 - Add a new parameter --torisolation which forces new circuits for each
131 connection when using tor (#430)
132 - Transaction relay (memory pool) changes:
133 - Reduce the default number max number of allowed orphan transactions
135 - Add a new parameter --maxorphantx which allows the maximum number of
136 orphan transactions stored in the mempool to be specified (#419)
138 - Modify listtransactions result to include the 'involveswatchonly' and
140 - Update getrawtransaction result to omit the 'confirmations' field
141 when it is 0 (#420, #422)
142 - Update signrawtransaction result to include errors (#423)
143 - btcctl utility changes:
144 - Add gettxoutproof command (#428)
145 - Add verifytxoutproof command (#428)
146 - Notable developer-related package changes:
147 - The btcec package now provides the ability to perform ECDH
148 encryption and decryption (#375)
149 - The block and header validation in the blockchain package has been
150 split to help pave the way toward concurrent downloads (#386)
152 - Minor peer optimization (#433)
153 - Contributors (alphabetical order):
160 Changes in 0.11.0 (Wed May 06 2015)
161 - Protocol and network related changes:
162 - **IMPORTANT: Update is required due to the following point**
163 - Correct a few corner cases in script handling which could result in
164 forking from the network on non-standard transactions (#425)
165 - Add a new checkpoint at block height 352940 (#418)
166 - Optimized script execution (#395, #400, #404, #409)
167 - Fix a case that could lead stalled syncs (#138, #296)
168 - Network address manager changes:
169 - Implement eclipse attack countermeasures as proposed in
170 http://cs-people.bu.edu/heilman/eclipse (#370, #373)
171 - Optional address indexing changes:
172 - Fix an issue where a reorg could cause an orderly shutdown when the
173 address index is active (#340, #357)
174 - Transaction relay (memory pool) changes:
175 - Increase maximum allowed space for nulldata transactions to 80 bytes
177 - Implement support for the following rules specified by BIP0062:
178 - The S value in ECDSA signature must be at most half the curve order
180 - Script execution must result in a single non-zero value on the stack
182 - NOTE: All 7 rules of BIP0062 are now implemented
183 - Use network adjusted time in finalized transaction checks to improve
184 consistency across nodes (#332)
185 - Process orphan transactions on acceptance of new transactions (#345)
187 - Add support for a limited RPC user which is not allowed admin level
188 operations on the server (#363)
189 - Implement node command for more unified control over connected peers
191 - Implement generate command for regtest/simnet to support
192 deterministically mining a specified number of blocks (#362, #407)
193 - Update searchrawtransactions to return the matching transactions in
195 - Correct an issue with searchrawtransactions where it could return
196 duplicates (#346, #354)
197 - Increase precision of 'difficulty' field in getblock result to 8
199 - Omit 'nextblockhash' field from getblock result when it is empty
201 - Add 'id' and 'timeoffset' fields to getpeerinfo result (#335)
203 - Implement new commands stopnotifyspent, stopnotifyreceived,
204 stopnotifyblocks, and stopnotifynewtransactions to allow clients to
205 cancel notification registrations (#122, #342)
206 - btcctl utility changes:
207 - A single dash can now be used as an argument to cause that argument to
208 be read from stdin (#348)
209 - Add generate command
210 - Notable developer-related package changes:
211 - The new version 2 btcjson package has now replaced the deprecated
212 version 1 package (#368)
213 - The btcec package now performs all signing using RFC6979 deterministic
214 signatures (#358, #360)
215 - The txscript package has been significantly cleaned up and had a few
216 API changes (#387, #388, #389, #390, #391, #392, #393, #395, #396,
217 #400, #403, #404, #405, #406, #408, #409, #410, #412)
218 - A new PkScriptLocs function has been added to the wire package MsgTx
219 type which provides callers that deal with scripts optimization
222 - Minor wire hashing optimizations (#366, #367)
223 - Other minor internal optimizations
224 - Contributors (alphabetical order):
237 Changes in 0.10.0 (Sun Mar 01 2015)
238 - Protocol and network related changes:
239 - Add a new checkpoint at block height 343185
240 - Implement BIP066 which includes support for version 3 blocks, a new
241 consensus rule which prevents non-DER encoded signatures, and a
242 double-threshold switchover mechanism
243 - Rather than announcing all known addresses on getaddr requests which
244 can possibly result in multiple messages, randomize the results and
245 limit them to the max allowed by a single message (1000 addresses)
246 - Add more reserved IP spaces to the address manager
247 - Transaction relay (memory pool) changes:
248 - Make transactions which contain reserved opcodes nonstandard
249 - No longer accept or relay free and low-fee transactions that have
250 insufficient priority to be mined in the next block
251 - Implement support for the following rules specified by BIP0062:
252 - ECDSA signature must use strict DER encoding (rule 1)
253 - The signature script must only contain push operations (rule 2)
254 - All push operations must use the smallest possible encoding (rule 3)
255 - All stack values interpreted as a number must be encoding using the
256 shortest possible form (rule 4)
257 - NOTE: Rule 1 was already enforced, however the entire script now
258 evaluates to false rather than only the signature verification as
260 - Allow transactions with nulldata transaction outputs to be treated as
262 - Mining support changes:
263 - Modify the getblocktemplate RPC to generate and return block templates
264 for version 3 blocks which are compatible with BIP0066
265 - Allow getblocktemplate to serve blocks when the current time is
266 less than the minimum allowed time for a generated block template
267 (https://github.com/btcsuite/btcd/issues/209)
269 - Optimize scalar multiplication by the base point by using a
270 pre-computed table which results in approximately a 35% speedup
271 (https://github.com/btcsuite/btcec/issues/2)
272 - Optimize general scalar multiplication by using the secp256k1
273 endomorphism which results in approximately a 17-20% speedup
274 (https://github.com/btcsuite/btcec/issues/1)
275 - Optimize general scalar multiplication by using non-adjacent form
276 which results in approximately an additional 8% speedup
277 (https://github.com/btcsuite/btcec/issues/3)
278 - Implement optional address indexing:
279 - Add a new parameter --addrindex which will enable the creation of an
280 address index which can be queried to determine all transactions which
281 involve a given address
282 (https://github.com/btcsuite/btcd/issues/190)
283 - Add a new logging subsystem for address index related operations
284 - Support new searchrawtransactions RPC
285 (https://github.com/btcsuite/btcd/issues/185)
287 - Require TLS version 1.2 as the minimum version for all TLS connections
288 - Provide support for disabling TLS when only listening on localhost
289 (https://github.com/btcsuite/btcd/pull/192)
290 - Modify help output for all commands to provide much more consistent
291 and detailed information
292 - Correct case in getrawtransaction which would refuse to serve certain
293 transactions with invalid scripts
294 (https://github.com/btcsuite/btcd/issues/210)
295 - Correct error handling in the getrawtransaction RPC which could lead
296 to a crash in rare cases
297 (https://github.com/btcsuite/btcd/issues/196)
298 - Update getinfo RPC to include the appropriate 'timeoffset' calculated
299 from the median network time
300 - Modify listreceivedbyaddress result type to include txids field so it
302 - Add 'iswatchonly' field to validateaddress result
303 - Add 'startingpriority' and 'currentpriority' fields to getrawmempool
304 (https://github.com/btcsuite/btcd/issues/178)
305 - Don't omit the 'confirmations' field from getrawtransaction when it is
308 - Modify the behavior of the rescan command to automatically register
309 for notifications about transactions paying to rescanned addresses
310 or spending outputs from the final rescan utxo set when the rescan
311 is through the best block in the chain
312 - btcctl utility changes:
313 - Make the list of commands available via the -l option rather than
314 dumping the entire list on usage errors
315 - Alphabetize and categorize the list of commands by chain and wallet
316 - Make the help option only show the help options instead of also
317 dumping all of the commands
318 - Make the usage syntax much more consistent and correct a few cases of
320 (https://github.com/btcsuite/btcd/issues/305)
321 - Improve usage errors to show the specific parameter number, reason,
323 - Only show the usage for specific command is shown when a valid command
324 is provided with invalid parameters
325 - Add support for a SOCK5 proxy
326 - Modify output for integer fields (such as timestamps) to display
327 normally instead in scientific notation
328 - Add invalidateblock command
329 - Add reconsiderblock command
330 - Add createnewaccount command
331 - Add renameaccount command
332 - Add searchrawtransactions command
333 - Add importaddress command
334 - Add importpubkey command
335 - showblock utility changes:
336 - Remove utility in favor of the RPC getblock method
337 - Notable developer-related package changes:
338 - Many of the core packages have been relocated into the btcd repository
339 (https://github.com/btcsuite/btcd/issues/214)
340 - A new version of the btcjson package that has been completely
341 redesigned from the ground up based based upon how the project has
342 evolved and lessons learned while using it since it was first written
343 is now available in the btcjson/v2/btcjson directory
344 - This will ultimately replace the current version so anyone making
345 use of this package will need to update their code accordingly
346 - The btcec package now provides better facilities for working directly
347 with its public and private keys without having to mix elements from
349 - Update the script builder to ensure all rules specified by BIP0062 are
350 adhered to when creating scripts
351 - The blockchain package now provides a MedianTimeSource interface and
352 concrete implementation for providing time samples from remote peers
353 and using that data to calculate an offset against the local time
355 - Fix a slow memory leak due to tickers not being stopped
356 (https://github.com/btcsuite/btcd/issues/189)
357 - Fix an issue where a mix of orphans and SPV clients could trigger a
358 condition where peers would no longer be served
359 (https://github.com/btcsuite/btcd/issues/231)
360 - The RPC username and password can now contain symbols which previously
361 conflicted with special symbols used in URLs
362 - Improve handling of obtaining random nonces to prevent cases where it
363 could error when not enough entropy was available
364 - Improve handling of home directory creation errors such as in the case
365 of unmounted symlinks (https://github.com/btcsuite/btcd/issues/193)
366 - Improve the error reporting for rejected transactions to include the
367 inputs which are missing and/or being double spent
368 - Update sample config file with new options and correct a comment
369 regarding the fact the RPC server only listens on localhost by default
370 (https://github.com/btcsuite/btcd/issues/218)
371 - Update the continuous integration builds to run several tools which
372 help keep code quality high
373 - Significant amount of internal code cleanup and improvements
374 - Other minor internal optimizations
375 - Code Contributors (alphabetical order):
377 - Ben Holden-Crowther
392 Changes in 0.9.0 (Sat Sep 20 2014)
393 - Protocol and network related changes:
394 - Add a new checkpoint at block height 319400
395 - Add support for BIP0037 bloom filters
396 (https://github.com/conformal/btcd/issues/132)
397 - Implement BIP0061 reject handling and hence support for protocol
398 version 70002 (https://github.com/conformal/btcd/issues/133)
399 - Add testnet DNS seeds for peer discovery (testnet-seed.alexykot.me
400 and testnet-seed.bitcoin.schildbach.de)
401 - Add mainnet DNS seed for peer discovery (seeds.bitcoin.open-nodes.org)
402 - Make multisig transactions with non-null dummy data nonstandard
403 (https://github.com/conformal/btcd/issues/131)
404 - Make transactions with an excessive number of signature operations
406 - Perform initial DNS lookups concurrently which allows connections
408 - Improve the address manager to significantly reduce memory usage and
410 - Remove orphan transactions when they appear in a mined block
411 (https://github.com/conformal/btcd/issues/166)
412 - Apply incremental back off on connection retries for persistent peers
413 that give invalid replies to mirror the logic used for failed
414 connections (https://github.com/conformal/btcd/issues/103)
415 - Correct rate-limiting of free and low-fee transactions
416 - Mining support changes:
417 - Implement getblocktemplate RPC with the following support:
418 (https://github.com/conformal/btcd/issues/124)
419 - BIP0022 Non-Optional Sections
420 - BIP0022 Long Polling
421 - BIP0023 Basic Pool Extensions
422 - BIP0023 Mutation coinbase/append
423 - BIP0023 Mutations time, time/increment, and time/decrement
424 - BIP0023 Mutation transactions/add
425 - BIP0023 Mutations prevblock, coinbase, and generation
426 - BIP0023 Block Proposals
427 - Implement built-in concurrent CPU miner
428 (https://github.com/conformal/btcd/issues/137)
429 NOTE: CPU mining on mainnet is pointless. This has been provided
430 for testing purposes such as for the new simulation test network
431 - Add --generate flag to enable CPU mining
432 - Deprecate the --getworkkey flag in favor of --miningaddr which
433 specifies which addresses generated blocks will choose from to pay
436 - Implement gettxout command
437 (https://github.com/conformal/btcd/issues/141)
438 - Implement validateaddress command
439 - Implement verifymessage command
440 - Mark getunconfirmedbalance RPC as wallet-only
441 - Mark getwalletinfo RPC as wallet-only
442 - Update getgenerate, setgenerate, gethashespersec, and getmininginfo
443 to return the appropriate information about new CPU mining status
444 - Modify getpeerinfo pingtime and pingwait field types to float64 so
446 - Improve disconnect handling for normal HTTP clients
447 - Make error code returns for invalid hex more consistent
449 - Switch to a new more efficient websocket package
450 (https://github.com/conformal/btcd/issues/134)
451 - Add rescanfinished notification
452 - Modify the rescanprogress notification to include block hash as well
453 as height (https://github.com/conformal/btcd/issues/151)
454 - btcctl utility changes:
455 - Accept --simnet flag which automatically selects the appropriate port
456 and TLS certificates needed to communicate with btcd and btcwallet on
457 the simulation test network
458 - Fix createrawtransaction command to send amounts denominated in BTC
459 - Add estimatefee command
460 - Add estimatepriority command
461 - Add getmininginfo command
462 - Add getnetworkinfo command
463 - Add gettxout command
464 - Add lockunspent command
465 - Add signrawtransaction command
466 - addblock utility changes:
467 - Accept --simnet flag which automatically selects the appropriate port
468 and TLS certificates needed to communicate with btcd and btcwallet on
469 the simulation test network
470 - Notable developer-related package changes:
471 - Provide a new bloom package in btcutil which allows creating and
472 working with BIP0037 bloom filters
473 - Provide a new hdkeychain package in btcutil which allows working with
474 BIP0032 hierarchical deterministic key chains
475 - Introduce a new btcnet package which houses network parameters
476 - Provide new simnet network (--simnet) which is useful for private
478 - Enforce low S values in serialized signatures as detailed in BIP0062
479 - Return errors from all methods on the btcdb.Db interface
480 (https://github.com/conformal/btcdb/issues/5)
481 - Allow behavior flags to alter btcchain.ProcessBlock
482 (https://github.com/conformal/btcchain/issues/5)
483 - Provide a new SerializeSize API for blocks
484 (https://github.com/conformal/btcwire/issues/19)
485 - Several of the core packages now work with Google App Engine
487 - Correct an issue where the database could corrupt under certain
488 circumstances which would require a new chain download
489 - Slightly optimize deserialization
490 - Use the correct IP block for he.net
491 - Fix an issue where it was possible the block manager could hang on
493 - Update sample config file so the comments are on a separate line
494 rather than the end of a line so they are not interpreted as settings
495 (https://github.com/conformal/btcd/issues/135)
496 - Correct an issue where getdata requests were not being properly
497 throttled which could lead to larger than necessary memory usage
498 - Always show help when given the help flag even when the config file
499 contains invalid entries
500 - General code cleanup and minor optimizations
502 Changes in 0.8.0-beta (Sun May 25 2014)
503 - Btcd is now Beta (https://github.com/conformal/btcd/issues/130)
504 - Add a new checkpoint at block height 300255
505 - Protocol and network related changes:
506 - Lower the minimum transaction relay fee to 1000 satoshi to match
507 recent reference client changes
508 (https://github.com/conformal/btcd/issues/100)
509 - Raise the maximum signature script size to support standard 15-of-15
510 multi-signature pay-to-sript-hash transactions with compressed pubkeys
511 to remain compatible with the reference client
512 (https://github.com/conformal/btcd/issues/128)
513 - Reduce max bytes allowed for a standard nulldata transaction to 40 for
514 compatibility with the reference client
515 - Introduce a new btcnet package which houses all of the network params
516 for each network (mainnet, testnet3, regtest) to ultimately enable
517 easier addition and tweaking of networks without needing to change
519 - Fix several script discrepancies found by reference client test data
520 - Add new DNS seed for peer discovery (seed.bitnodes.io)
521 - Reduce the max known inventory cache from 20000 items to 1000 items
522 - Fix an issue where unknown inventory types could lead to a hung peer
523 - Implement inventory rebroadcast handler for sendrawtransaction
524 (https://github.com/conformal/btcd/issues/99)
525 - Update user agent to fully support BIP0014
526 (https://github.com/conformal/btcwire/issues/10)
527 - Implement initial mining support:
528 - Add a new logging subsystem for mining related operations
529 - Implement infrastructure for creating block templates
530 - Provide options to control block template creation settings
531 - Support the getwork RPC
532 - Allow address identifiers to apply to more than one network since both
533 testnet3 and the regression test network unfortunately use the same
536 - Set the content type for HTTP POST RPC connections to application/json
537 (https://github.com/conformal/btcd/issues/121)
538 - Modified the RPC server startup so it only requires at least one valid
540 - Correct an error path where it was possible certain errors would not
542 - Implement getwork command
543 (https://github.com/conformal/btcd/issues/125)
544 - Update sendrawtransaction command to reject orphans
545 - Update sendrawtransaction command to include the reason a transaction
547 - Update getinfo command to populate connection count field
548 - Update getinfo command to include relay fee field
549 (https://github.com/conformal/btcd/issues/107)
550 - Allow transactions submitted with sendrawtransaction to bypass the
552 - Allow the getcurrentnet and getbestblock extensions to be accessed via
553 HTTP POST in addition to Websockets
554 (https://github.com/conformal/btcd/issues/127)
556 - Rework notifications to ensure they are delivered in the order they
558 - Rename notifynewtxs command to notifyreceived (funds received)
559 - Rename notifyallnewtxs command to notifynewtransactions
560 - Rename alltx notification to txaccepted
561 - Rename allverbosetx notification to txacceptedverbose
562 (https://github.com/conformal/btcd/issues/98)
563 - Add rescan progress notification
564 - Add recvtx notification
565 - Add redeemingtx notification
566 - Modify notifyspent command to accept an array of outpoints
567 (https://github.com/conformal/btcd/issues/123)
568 - Significantly optimize the rescan command to yield up to a 60x speed
570 - btcctl utility changes:
571 - Add createencryptedwallet command
572 - Add getblockchaininfo command
573 - Add importwallet commmand
574 - Add addmultisigaddress commmand
575 - Add setgenerate command
576 - Accept --testnet and --wallet flags which automatically select
577 the appropriate port and TLS certificates needed to communicate
578 with btcd and btcwallet (https://github.com/conformal/btcd/issues/112)
579 - Allow path expansion from config file entries
580 (https://github.com/conformal/btcd/issues/113)
581 - Minor refactor simplify handling of options
582 - addblock utility changes:
583 - Improve logging by making it consistent with the logging provided by
584 btcd (https://github.com/conformal/btcd/issues/90)
585 - Improve several package APIs for developers:
586 - Add new amount type for consistently handling monetary values
587 - Add new coin selector API
588 - Add new WIF (Wallet Import Format) API
589 - Add new crypto types for private keys and signatures
590 - Add new API to sign transactions including script merging and hash
592 - Expose function to extract all pushed data from a script
593 (https://github.com/conformal/btcscript/issues/8)
595 - Optimize address manager shuffling to do 67% less work on average
596 - Resolve a couple of benign data races found by the race detector
597 (https://github.com/conformal/btcd/issues/101)
598 - Add IP address to all peer related errors to clarify which peer is the
599 cause (https://github.com/conformal/btcd/issues/102)
600 - Fix a UPNP case issue that prevented the --upnp option from working
601 with some UPNP servers
602 - Update documentation in the sample config file regarding debug levels
603 - Adjust some logging levels to improve debug messages
604 - Improve the throughput of query messages to the block manager
605 - Several minor optimizations to reduce GC churn and enhance speed
606 - Other minor refactoring
607 - General code cleanup
609 Changes in 0.7.0 (Thu Feb 20 2014)
610 - Fix an issue when parsing scripts which contain a multi-signature script
611 which require zero signatures such as testnet block
612 000000001881dccfeda317393c261f76d09e399e15e27d280e5368420f442632
613 (https://github.com/conformal/btcscript/issues/7)
614 - Add check to ensure all transactions accepted to mempool only contain
615 canonical data pushes (https://github.com/conformal/btcscript/issues/6)
616 - Fix an issue causing excessive memory consumption
617 - Significantly rework and improve the websocket notification system:
618 - Each client is now independent so slow clients no longer limit the
619 speed of other connected clients
620 - Potentially long-running operations such as rescans are now run in
621 their own handler and rate-limited to one operation at a time without
622 preventing simultaneous requests from the same client for the faster
623 requests or notifications
624 - A couple of scenarios which could cause shutdown to hang have been
626 - Update notifynewtx notifications to support all address types instead
627 of only pay-to-pubkey-hash
628 - Provide a --rpcmaxwebsockets option to allow limiting the number of
629 concurrent websocket clients
630 - Add a new websocket command notifyallnewtxs to request notifications
631 (https://github.com/conformal/btcd/issues/86) (thanks @flammit)
632 - Improve btcctl utility in the following ways:
633 - Add getnetworkhashps command
634 - Add gettransaction command (wallet-specific)
635 - Add signmessage command (wallet-specific)
636 - Update getwork command to accept
637 - Continue cleanup and work on implementing the RPC API:
638 - Implement getnettotals command
639 (https://github.com/conformal/btcd/issues/84)
640 - Implement networkhashps command
641 (https://github.com/conformal/btcd/issues/87)
642 - Update getpeerinfo to always include syncnode field even when false
643 - Remove help addenda for getpeerinfo now that it supports all fields
644 - Close standard RPC connections on auth failure
645 - Provide a --rpcmaxclients option to allow limiting the number of
646 concurrent RPC clients (https://github.com/conformal/btcd/issues/68)
647 - Include IP address in RPC auth failure log messages
648 - Resolve a rather harmless data races found by the race detector
649 (https://github.com/conformal/btcd/issues/94)
650 - Increase block priority size and max standard transaction size to 50k
651 and 100k, respectively (https://github.com/conformal/btcd/issues/71)
652 - Add rate limiting of free transactions to the memory pool to prevent
653 penny flooding (https://github.com/conformal/btcd/issues/40)
654 - Provide a --logdir option (https://github.com/conformal/btcd/issues/95)
655 - Change the default log file path to include the network
656 - Add a new ScriptBuilder interface to btcscript to support creation of
657 custom scripts (https://github.com/conformal/btcscript/issues/5)
658 - General code cleanup
660 Changes in 0.6.0 (Tue Feb 04 2014)
661 - Fix an issue when parsing scripts which contain invalid signatures that
662 caused a chain fork on block
663 0000000000000001e4241fd0b3469a713f41c5682605451c05d3033288fb2244
664 - Correct an issue which could lead to an error in removeBlockNode
665 (https://github.com/conformal/btcchain/issues/4)
666 - Improve addblock utility as follows:
667 - Check imported blocks against all chain rules and checkpoints
668 - Skip blocks which are already known so you can stop and restart the
669 import or start the import after you have already downloaded a portion
671 - Correct an issue where the utility did not shutdown cleanly after
672 processing all blocks
673 - Add error on attempt to import orphan blocks
674 - Improve error handling and reporting
675 - Display statistics after input file has been fully processed
676 - Rework, optimize, and improve headers-first mode:
677 - Resuming the chain sync from any point before the final checkpoint
678 will now use headers-first mode
679 (https://github.com/conformal/btcd/issues/69)
680 - Verify all checkpoints as opposed to only the final one
681 - Reduce and bound memory usage
682 - Rollback to the last known good point when a header does not match a
684 - Log information about what is happening with headers
685 - Improve btcctl utility in the following ways:
686 - Add getaddednodeinfo command
687 - Add getnettotals command
688 - Add getblocktemplate command (wallet-specific)
689 - Add getwork command (wallet-specific)
690 - Add getnewaddress command (wallet-specific)
691 - Add walletpassphrasechange command (wallet-specific)
692 - Add walletlock command (wallet-specific)
693 - Add sendfrom command (wallet-specific)
694 - Add sendmany command (wallet-specific)
695 - Add settxfee command (wallet-specific)
696 - Add listsinceblock command (wallet-specific)
697 - Add listaccounts command (wallet-specific)
698 - Add keypoolrefill command (wallet-specific)
699 - Add getreceivedbyaccount command (wallet-specific)
700 - Add getrawchangeaddress command (wallet-specific)
701 - Add gettxoutsetinfo command (wallet-specific)
702 - Add listaddressgroupings command (wallet-specific)
703 - Add listlockunspent command (wallet-specific)
704 - Add listlock command (wallet-specific)
705 - Add listreceivedbyaccount command (wallet-specific)
706 - Add validateaddress command (wallet-specific)
707 - Add verifymessage command (wallet-specific)
708 - Add sendtoaddress command (wallet-specific)
709 - Continue cleanup and work on implementing the RPC API:
710 - Implement submitblock command
711 (https://github.com/conformal/btcd/issues/61)
712 - Implement help command
713 - Implement ping command
714 - Implement getaddednodeinfo command
715 (https://github.com/conformal/btcd/issues/78)
716 - Implement getinfo command
717 - Update getpeerinfo to support bytesrecv and bytessent
718 (https://github.com/conformal/btcd/issues/83)
719 - Improve and correct several RPC server and websocket areas:
720 - Change the connection endpoint for websockets from /wallet to /ws
721 (https://github.com/conformal/btcd/issues/80)
722 - Implement an alternative authentication for websockets so clients
723 such as javascript from browsers that don't support setting HTTP
724 headers can authenticate (https://github.com/conformal/btcd/issues/77)
725 - Add an authentication deadline for RPC connections
726 (https://github.com/conformal/btcd/issues/68)
727 - Use standard authentication failure responses for RPC connections
728 - Make automatically generated certificate more standard so it works
729 from client such as node.js and Firefox
730 - Correct some minor issues which could prevent the RPC server from
731 shutting down in an orderly fashion
732 - Make all websocket notifications require registration
733 - Change the data sent over websockets to text since it is JSON-RPC
734 - Allow connections that do not have an Origin header set
735 - Expose and track the number of bytes read and written per peer
736 (https://github.com/conformal/btcwire/issues/6)
737 - Correct an issue with sendrawtransaction when invoked via websockets
738 which prevented a minedtx notification from being added
739 - Rescan operations issued from remote wallets are no stopped when
740 the wallet disconnects mid-operation
741 (https://github.com/conformal/btcd/issues/66)
742 - Several optimizations related to fetching block information from the
744 - General code cleanup
746 Changes in 0.5.0 (Mon Jan 13 2014)
747 - Optimize initial block download by introducing a new mode which
748 downloads the block headers first (up to the final checkpoint)
749 - Improve peer handling to remove the potential for slow peers to cause
750 sluggishness amongst all peers
751 (https://github.com/conformal/btcd/issues/63)
752 - Fix an issue where the initial block sync could stall when the sync peer
753 disconnects (https://github.com/conformal/btcd/issues/62)
754 - Correct an issue where --externalip was doing a DNS lookup on the full
755 host:port instead of just the host portion
756 (https://github.com/conformal/btcd/issues/38)
757 - Fix an issue which could lead to a panic on chain switches
758 (https://github.com/conformal/btcd/issues/70)
759 - Improve btcctl utility in the following ways:
760 - Show getdifficulty output as floating point to 6 digits of precision
761 - Show all JSON object replies formatted as standard JSON
762 - Allow btcctl getblock to accept optional params
763 - Add getaccount command (wallet-specific)
764 - Add getaccountaddress command (wallet-specific)
765 - Add sendrawtransaction command
766 - Continue cleanup and work on implementing RPC API calls
767 - Update getrawmempool to support new optional verbose flag
768 - Update getrawtransaction to match the reference client
769 - Update getblock to support new optional verbose flag
770 - Update raw transactions to fully match the reference client including
771 support for all transaction types and address types
772 - Correct getrawmempool fee field to return BTC instead of Satoshi
773 - Correct getpeerinfo service flag to return 8 digit string so it
774 matches the reference client
775 - Correct verifychain to return a boolean
776 - Implement decoderawtransaction command
777 - Implement createrawtransaction command
778 - Implement decodescript command
779 - Implement gethashespersec command
780 - Allow RPC handler overrides when invoked via a websocket versus
782 - Add new DNS seed for peer discovery
783 - Display user agent on new valid peer log message
784 (https://github.com/conformal/btcd/issues/64)
785 - Notify wallet when new transactions that pay to registered addresses
786 show up in the mempool before being mined into a block
787 - Support a tor-specific proxy in addition to a normal proxy
788 (https://github.com/conformal/btcd/issues/47)
789 - Remove deprecated sqlite3 imports from utilities
790 - Remove leftover profile write from addblock utility
791 - Quite a bit of code cleanup and refactoring to improve maintainability
793 Changes in 0.4.0 (Thu Dec 12 2013)
794 - Allow listen interfaces to be specified via --listen instead of only the
795 port (https://github.com/conformal/btcd/issues/33)
796 - Allow listen interfaces for the RPC server to be specified via
797 --rpclisten instead of only the port
798 (https://github.com/conformal/btcd/issues/34)
799 - Only disable listening when --connect or --proxy are used when no
800 --listen interface are specified
801 (https://github.com/conformal/btcd/issues/10)
802 - Add several new standard transaction checks to transaction memory pool:
803 - Support nulldata scripts as standard
804 - Only allow a max of one nulldata output per transaction
805 - Enforce a maximum of 3 public keys in multi-signature transactions
806 - The number of signatures in multi-signature transactions must not
807 exceed the number of public keys
808 - The number of inputs to a signature script must match the expected
809 number of inputs for the script type
810 - The number of inputs pushed onto the stack by a redeeming signature
811 script must match the number of inputs consumed by the referenced
813 - When a block is connected, remove any transactions from the memory pool
814 which are now double spends as a result of the newly connected
816 - Don't relay transactions resurrected during a chain switch since
817 other peers will also be switching chains and therefore already know
819 - Cleanup a few cases where rejected transactions showed as an error
820 rather than as a rejected transaction
821 - Ignore the default configuration file when --regtest (regression test
823 - Implement TLS support for RPC including automatic certificate generation
824 - Support HTTP authentication headers for web sockets
825 - Update address manager to recognize and properly work with Tor
826 addresses (https://github.com/conformal/btcd/issues/36) and
827 (https://github.com/conformal/btcd/issues/37)
828 - Improve btcctl utility in the following ways:
829 - Add the ability to specify a configuration file
830 - Add a default entry for the RPC cert to point to the location
831 it will likely be in the btcd home directory
832 - Implement --version flag
833 - Provide a --notls option to support non-TLS configurations
834 - Fix a couple of minor races found by the Go race detector
836 - Allow logging level to be specified on a per subsystem basis
837 (https://github.com/conformal/btcd/issues/48)
838 - Allow logging levels to be dynamically changed via RPC
839 (https://github.com/conformal/btcd/issues/15)
840 - Implement a rolling log file with a max of 10MB per file and a
841 rotation size of 3 which results in a max logging size of 30 MB
842 - Correct a minor issue with the rescanning websocket call
843 (https://github.com/conformal/btcd/issues/54)
844 - Fix a race with pushing address messages that could lead to a panic
845 (https://github.com/conformal/btcd/issues/58)
846 - Improve which external IP address is reported to peers based on which
847 interface they are connected through
848 (https://github.com/conformal/btcd/issues/35)
849 - Add --externalip option to allow an external IP address to be specified
850 for cases such as tor hidden services or advanced network configurations
851 (https://github.com/conformal/btcd/issues/38)
852 - Add --upnp option to support automatic port mapping via UPnP
853 (https://github.com/conformal/btcd/issues/51)
854 - Update Ctrl+C interrupt handler to properly sync address manager and
855 remove the UPnP port mapping (if needed)
856 - Continue cleanup and work on implementing RPC API calls
857 - Add importprivkey (import private key) command to btcctl
858 - Update getrawtransaction to provide addresses properly, support
859 new verbose param, and match the reference implementation with the
860 exception of MULTISIG (thanks @flammit)
861 - Update getblock with new verbose flag (thanks @flammit)
862 - Add listtransactions command to btcctl
863 - Add getbalance command to btcctl
864 - Add basic support for btcd to run as a native Windows service
865 (https://github.com/conformal/btcd/issues/42)
866 - Package addblock utility with Windows MSIs
867 - Add support for TravisCI (continuous build integration)
868 - Cleanup some documentation and usage
869 - Several other minor bug fixes and general code cleanup
871 Changes in 0.3.3 (Wed Nov 13 2013)
872 - Significantly improve initial block chain download speed
873 (https://github.com/conformal/btcd/issues/20)
874 - Add a new checkpoint at block height 267300
875 - Optimize most recently used inventory handling
876 (https://github.com/conformal/btcd/issues/21)
877 - Optimize duplicate transaction input check
878 (https://github.com/conformal/btcchain/issues/2)
879 - Optimize transaction hashing
880 (https://github.com/conformal/btcd/issues/25)
881 - Rework and optimize wallet listener notifications
882 (https://github.com/conformal/btcd/issues/22)
883 - Optimize serialization and deserialization
884 (https://github.com/conformal/btcd/issues/27)
885 - Add support for minimum transaction fee to memory pool acceptance
886 (https://github.com/conformal/btcd/issues/29)
887 - Improve leveldb database performance by removing explicit GC call
888 - Fix an issue where Ctrl+C was not always finishing orderly database
890 - Fix an issue in the script handling for OP_CHECKSIG
891 - Impose max limits on all variable length protocol entries to prevent
892 abuse from malicious peers
893 - Enforce DER signatures for transactions allowed into the memory pool
894 - Separate the debug profile http server from the RPC server
895 - Rework of the RPC code to improve performance and make the code cleaner
896 - The getrawtransaction RPC call now properly checks the memory pool
897 before consulting the db (https://github.com/conformal/btcd/issues/26)
898 - Add support for the following RPC calls: getpeerinfo, getconnectedcount,
900 (https://github.com/conformal/btcd/issues/13)
901 (https://github.com/conformal/btcd/issues/17)
902 - Implement rescan websocket extension to allow wallet rescans
903 - Use correct paths for application data storage for all supported
904 operating systems (https://github.com/conformal/btcd/issues/30)
905 - Add a default redirect to the http profiling page when accessing the
907 - Add a new --cpuprofile option which can be used to generate CPU
908 profiling data on platforms that support it
909 - Several other minor performance optimizations
910 - Other minor bug fixes and general code cleanup
912 Changes in 0.3.2 (Tue Oct 22 2013)
913 - Fix an issue that could cause the download of the block chain to stall
914 (https://github.com/conformal/btcd/issues/12)
915 - Remove deprecated sqlite as an available database backend
916 - Close sqlite compile issue as sqlite has now been removed
917 (https://github.com/conformal/btcd/issues/11)
918 - Change default RPC ports to 8334 (mainnet) and 18334 (testnet)
919 - Continue cleanup and work on implementing RPC API calls
920 - Add support for the following RPC calls: getrawmempool,
921 getbestblockhash, decoderawtransaction, getdifficulty,
922 getconnectioncount, getpeerinfo, and addnode
923 - Improve the btcctl utility that is used to issue JSON-RPC commands
924 - Fix an issue preventing btcd from cleanly shutting down with the RPC
926 - Add a number of database interface tests to ensure backends implement
927 the expected interface
928 - Expose some additional information from btcscript to be used for
929 identifying "standard"" transactions
930 - Add support for plan9 - thanks @mischief
931 (https://github.com/conformal/btcd/pull/19)
932 - Other minor bug fixes and general code cleanup
934 Changes in 0.3.1-alpha (Tue Oct 15 2013)
935 - Change default database to leveldb
936 NOTE: This does mean you will have to redownload the block chain. Since we
937 are still in alpha, we didn't feel writing a converter was worth the time as
938 it would take away from more important issues at this stage
939 - Add a warning if there are multiple block chain databases of different types
940 - Fix issue with unexpected EOF in leveldb -- https://github.com/conformal/btcd/issues/18
941 - Fix issue preventing block 21066 on testnet -- https://github.com/conformal/btcchain/issues/1
942 - Fix issue preventing block 96464 on testnet -- https://github.com/conformal/btcscript/issues/1
943 - Optimize transaction lookups
944 - Correct a few cases of list removal that could result in improper cleanup
945 of no longer needed orphans
946 - Add functionality to increase ulimits on non-Windows platforms
947 - Add support for mempool command which allows remote peers to query the
948 transaction memory pool via the bitcoin protocol
949 - Clean up logging a bit
950 - Add a flag to disable checkpoints for developers
951 - Add a lot of useful debug logging such as message summaries
952 - Other minor bug fixes and general code cleanup
954 Initial Release 0.3.0-alpha (Sat Oct 05 2013):
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