diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 8a61c8e..636d3e3 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -211,6 +211,9 @@
   <li>A full set of <a href="http://clang.llvm.org/docs/LanguageExtensions.html#checking_type_traits">type traits</a>,
   sufficient to support C++11 standard libraries</li>
 </ul>
+All warning and language selection flags which previously accepted
+<code>c++0x</code> now accept <code>c++11</code>. The old <code>c++0x</code>
+form remains as an alias.
 
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 <h3 id="objcchanges">Objective-C Language Changes in Clang</h3>