Update release notes wrt #742
diff --git a/release-notes/VERSION b/release-notes/VERSION
index 0342d5f..ac3ea7d 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -6,6 +6,7 @@
 
 2.5.3 (not yet released)
 
+#742: Allow deserialization of `null` Object Id (missing already allowed)
 #745: EnumDeserializer.deserializerForCreator fails when used to deserialize a Map key
  (contributed by John M)