Speed up base64.urlsafe_{en,de}code().
diff --git a/Misc/NEWS b/Misc/NEWS
index af1e26c..70258dc 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -40,6 +40,8 @@
 Library
 -------
 
+- Issue: #15138: base64.urlsafe_{en,de}code() are now 3-4x faster.
+
 - Issue #9527: datetime.astimezone() method will now supply a class
   timezone instance corresponding to the system local timezone when
   called with no arguments.