diff --git a/docs/changelog.rst b/docs/changelog.rst
index 47580721e..2b95652e6 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,11 @@
 Changelog
 =========
 
+Version 4.21.3
+--------------
+This patch version includes:
+    - Fixes a bug where client-side batching contexts did not respect user-supplied insert timeouts
+
 Version 4.21.2
 --------------
 This patch version includes: