Patch #1359618: Speed-up charmap encoder.
diff --git a/Misc/NEWS b/Misc/NEWS
index 176fa3a..50e7907 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -104,6 +104,9 @@
 Library
 -------
 
+- Patch #1359618: Speed up charmap encoder by using a trie structure
+  for lookup.
+
 - The functions in the ``pprint`` module now sort dictionaries by key
   before computing the display.  Before 2.5, ``pprint`` sorted a dictionary
   if and only if its display required more than one line, although that