diff --git a/CHANGES.rst b/CHANGES.rst
index 8dccc8c..08f9731 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -8,6 +8,8 @@
 0.4.3 (unreleased)
 ------------------
 
+* Improve scatter viewer and mouseover performance. [#137]
+
 
 0.4.2 (07.23.2024)
 ------------------