diff --git a/CHANGELOG b/CHANGELOG
index e3adbe17ecbf2fe0cd7dd483851f3e82f7b7464e..7193dec333911df129e6acb1dd287fae9314c125 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+v 10.4.3
+  - Add deltas_only option for DiffCollection, which improves performance and saves memory
+
 v 10.4.2
   - Improve performance of a decorated DiffCollection instance