Issue #9935: Speed up pickling of instances of user-defined classes.
diff --git a/Misc/NEWS b/Misc/NEWS
index 1fa4b0d..45a7240 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -62,6 +62,8 @@
 Library
 -------
 
+- Issue #9935: Speed up pickling of instances of user-defined classes.
+
 - Issue #5622: Fix curses.wrapper to raise correct exception if curses
   initialization fails.