diff --git a/Misc/NEWS b/Misc/NEWS
index 94cc8ac..43cfc64 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -189,6 +189,9 @@
 - Issue #13899: \A, \Z, and \B now correctly match the A, Z, and B literals
   when used inside character classes (e.g. '[\A]').  Patch by Matthew Barnett.
 
+- Issue #16398: Optimize deque.rotate() so that it only moves pointers
+  and doesn't touch the underlying data with increfs and decrefs.
+
 - Issue #15109: Fix regression in sqlite3's iterdump method where it would
   die with an encoding error if the database contained string values
   containing non-ASCII.  (Regression was introduced by fix for 9750).