Issue #3116 and #1792: Fix quadratic behavior in marshal.dumps().
diff --git a/Misc/NEWS b/Misc/NEWS
index 6363f80..cdc3f9c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -48,6 +48,8 @@
 Library
 -------
 
+- Issue #3116 and #1792:  Fix quadratic behavior in marshal.dumps().
+
 - Issue #2682: ctypes callback functions no longer contain a cyclic
   reference to themselves.