diff --git a/CHANGES b/CHANGES
index d0f5c2875..526ac15dc 100644
--- a/CHANGES
+++ b/CHANGES
@@ -14,6 +14,7 @@ Bugs fixed
 ----------
 
 * #3597: python domain raises UnboundLocalError if invalid name given
+* #3599: Move to new Mathjax CDN
 
 Testing
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