diff --git a/Misc/NEWS b/Misc/NEWS
index 624c465..6ed2c2c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -383,6 +383,9 @@
 Extension Modules
 -----------------
 
+- Issue #9450: Fix memory leak in readline.replace_history_item and
+  readline.remove_history_item for readline version >= 5.0.
+
 - Issue #8105: Validate file descriptor passed to mmap.mmap on Windows.
 
 - Issue #9422: Fix memory leak when re-initializing a struct.Struct object.