diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 6c32f50..4305939 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -88,6 +88,7 @@
 	</li>
 	<li>Other Changes
 		<ul>
+			<li>Improved security in <kbd>xss_clean()</kbd>.</li>
 			<li>Added 'application/msexcel' to config/mimes.php for .xls files.</li>
 		</ul>
 	</li>