Issue #14775: Fix a potential quadratic dict build-up due to the garbage collector repeatedly trying to untrack dicts.
Additional comments by Tim Silk.
diff --git a/Misc/NEWS b/Misc/NEWS
index 6a73cca..efcf550 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -9,6 +9,9 @@
Core and Builtins
-----------------
+- Issue #14775: Fix a potential quadratic dict build-up due to the garbage
+ collector repeatedly trying to untrack dicts.
+
- Issue #14494: Fix __future__.py and its documentation to note that
absolute imports are the default behavior in 3.0 instead of 2.7.
Patch by Sven Marnach.