Modified form_hidden() to accept multi-dimensional arrays.
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 3650e03..e4d57f6 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -77,7 +77,11 @@
 			<li>Added reconnect() method to DB drivers to try to keep alive / reestablish a connection after a long idle.</li>
 		</ul>
 	</li>
-	
+	<li>Helpers
+		<ul>
+			<li>Modified <kbd>form_hidden()</kbd> in the <a href="helpers/form_helper.html">Form helper</a> to accept multi-dimensional arrays.</li>
+		</ul>
+	</li>
 </ul>
 
 <h3>Bug fixes for 1.7.2</h3>