diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 8149b7c..6697856 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -63,7 +63,11 @@
 SVN Revision: XXXX</p>
 
 <ul>
-	<li>No significant changes yet</li>
+	<li>Other changes
+		<ul>
+			<li>Improved performance and accuracy of xss_clean() (no changes to security)</li>
+		</ul>
+	</li>
 </ul>
 
 <h3>Bug fixes for 1.6.4</h3>