release notes for I9a2ebd50

I forgot them earlier, sorry.

Change-Id: I08236ae05edb0d96febb4bb01fc8d15324d327bd

diff --git a/RELEASE-NOTES-1.21 b/RELEASE-NOTES-1.21
index dd1c189..679a117 100644 (file)
--- a/RELEASE-NOTES-1.21
+++ b/RELEASE-NOTES-1.21
@@ -85,6 +85,11 @@ production.
   title parameter was specified.
 * (bug 42410) API action=edit now returns correct timestamp for the new edit.
 * (bug 14901) Email notification mistakes log action for new page creation.
+* (bug 457) In the sidebar of Vector, CologneBlue, Monobook, and Monobook-based
+  skins, the heading levels have been changed from (variously per skin)
+  <h4>, <h5> or <h6> to only <h3>s, with a <h2> hidden heading above them.
+  If you are styling or scripting the headings in a custom way, this change
+  will require updates to your site's CSS or JS.
 
 === API changes in 1.21 ===
 * prop=revisions can now report the contentmodel and contentformat, see docs/contenthandler.txt.