diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index cc6937ebd8a..4c47f9b6a8f 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -1011,6 +1011,12 @@ API changes are:</p>
   LLVM.  The Triple::normalize utility method has been added to help front-ends
   deal with funky triples.
 </li>
+<li>
+  The signature of the <tt>GCMetadataPrinter::finishAssembly</tt> virtual
+  function changed: the <tt>raw_ostream</tt> and <tt>MCAsmInfo</tt> arguments
+  were dropped.  GC plugins which compute stack maps must be updated to avoid
+  having the old definition overload the new signature.
+</li>
   
 <li>
   Some APIs were renamed: