Add a blurb to the release notes about the WeakVH -> WeakTrackingVH transition

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302456 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index dbffb53..bc35e62 100644 (file)
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -40,6 +40,10 @@ Non-comprehensive list of changes in this release
    functionality, or simply have a lot to talk about), see the `NOTE` below
    for adding a new subsection.
 
+* LLVM's ``WeakVH`` has been renamed to ``WeakTrackingVH`` and a new ``WeakVH``
+  has been introduced.  The new ``WeakVH`` nulls itself out on deletion, but
+  does not track values across RAUW.
+
 * ... next change ...
 
 .. NOTE