diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 1911aa056..89e729dd7 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -54,6 +54,9 @@ If the output is not quite correct, check for invisible trailing spaces!
     </release>
 
     <release version="4.0" date="XXXX-XX-XX" description="">
+      <action dev="erans" type="add" issue="MATH-1509" due-to="Chen Tao">
+        Add "MiniBatchKMeansClusterer" clustering algorithm.
+      </action>
       <action dev="erans" type="update" issue="MATH-1524" due-to="Chen Tao">
         Code reuse.
       </action>