diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index 6358ec7f697..b81b7af514d 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -356,6 +356,8 @@ components, please contact us on the llvmdev list.</p>
 <li>The <tt>-pre</tt> pass is incomplete (there are cases it doesn't handle that
     it should) and not thoroughly tested.</li>
 <li>The <tt>llvm-db</tt> tool is in a very early stage of development.</li>
+<li>The "iterative scan" register allocator (enabled with -regalloc=iterativescan)
+    is not stable.</li>
 </ul>
 
 </div>