1 files changed, 2 insertions, 0 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index 48094e3..2841fb7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -365,6 +365,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #13149: Speed up append-only StringIO objects.
+
 - Issue #13373: multiprocessing.Queue.get() could sometimes block indefinitely
   when called with a timeout.  Patch by Arnaud Ysmal.