diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 8e4ae82bd93..e211bcda5a9 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -78,6 +78,8 @@ bug fixes for those problems found since the 1.4 release.</p>
   <li>LLVM now includes an <a href="http://llvm.cs.uiuc.edu/PR415">
       Interprocedural Sparse Conditional Constant Propagation</a> pass, named
      -ipsccp, which is run by default at link-time.</li>
+  <li>LLVM is now about 10% faster than before due to its core data structures
+      using less memory.</li>
 </ol>
 
 </div>