diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index bb155ea..e93088c 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -62,7 +62,9 @@
 <p>Release Date: not currently released</p>
 <ul>
     <li>No additions currently listed</li>
-    </ul>
+    <li>Added 'application/vnd.ms-powerpoint' to list of mime types.<br />
+    </li>
+</ul>
 <h3>Bugfixes for 1.6.2</h3>
 <ul>
     <li>Fixed assorted user guide typos (#3453)</li>