diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 3e67502877..42b9a41e6d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -8,6 +8,10 @@ the top.  Include a label indicating the component affected.
 Blades: Fixed bug when image mapped input's Show Answer multiplies rectangles on
  many inputtypes. BLD-810.
 
+Studio and LMS: Upgrade version of TinyMCE to 4.0.16. Switch from tabbed Visual/HTML
+Editor for HTML modules to showing the code editor as a plugin within TinyMCE (triggered
+from toolbar). STUD-1422
+
 LMS: Enabled screen reader feedback of problem responses.
   LMS-2158