diff --git a/Misc/NEWS b/Misc/NEWS
index dd75f61..86eac9f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,10 @@
 Core and builtins
 -----------------
 
+- Bug #966623. classes created with type() in an exec(, {}) don't
+  have a __module__, but code in typeobject assumed it would always
+  be there.
+
 - Python no longer relies on the LC_NUMERIC locale setting to be
   the "C" locale; as a result, it no longer tries to prevent changing
   the LC_NUMERIC category.