Issue #12791: Break reference cycles early when a generator exits with an exception.
diff --git a/Misc/NEWS b/Misc/NEWS
index a4251e3..f8c135f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@
 Core and Builtins
 -----------------
 
+- Issue #12791: Break reference cycles early when a generator exits with
+  an exception.
+
 - Issue #12266: Fix str.capitalize() to correctly uppercase/lowercase
   titlecased and cased non-letter characters.