Update release notes wrt #1129, add null check to help troubleshoot callback
diff --git a/release-notes/VERSION b/release-notes/VERSION
index e4b21e9..c134515 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -4,6 +4,10 @@
 === Releases ===
 ------------------------------------------------------------------------
 
+2.7.2 (not released yet)
+
+#1129: When applying type modifiers, don't ignore container types.
+
 2.7.1-1 (03-Feb-2016)
 
 Special one-off "micro patch" for: