Issue #9410: Various optimizations to the pickle module, leading to
speedups up to 4x (depending on the benchmark).  Mostly ported from
Unladen Swallow; initial patch by Alexandre Vassalotti.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4966aa9..eedea78 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -20,6 +20,10 @@
 Library
 -------
 
+- Issue #9410: Various optimizations to the pickle module, leading to
+  speedups up to 4x (depending on the benchmark).  Mostly ported from
+  Unladen Swallow; initial patch by Alexandre Vassalotti.
+
 - The pprint module now supports printing OrderedDicts in their given
   order (formerly, it would sort the keys).