diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 3dd4ff2..88c7de0 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -641,6 +641,9 @@
 
 <li>FIXME: Debug info has been totally redone. Add pointers to new APIs. Substantial caveats about compatibility of .ll and .bc files.</li>
 
+<li>The <tt>llvm/Support/DataTypes.h</tt> header has moved
+to <tt>llvm/System/DataTypes.h</tt>.</li>
+
 </ul>
 
 </div>