diff --git a/Misc/NEWS b/Misc/NEWS
index 7cfd3fc..ce6bb05 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,8 @@
 Core and Builtins
 -----------------
 
+- _ast.__version__ is now a Mercurial integer and hex revision.
+
 - Issue #9856: Change object.__format__ with a non-empty format string
   to be a DeprecationWarning. In 3.2 it was a PendingDeprecationWarning.
   In 3.4 it will be a TypeError.