diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index f838dbd..be5c8c9 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -109,6 +109,7 @@
 	<li>Other
 		Changes
 		<ul>
+			<li>Removed closing PHP tags from all PHP files to avoid accidental output and potential 'cannot modify headers' errors.</li>
 			<li>Added a <a href="general/reserved_names.html">Reserved Names</a> page to the userguide, and migrated reserved controller names into it.</li>
 			<li>Added a <a href="general/common_functions.html">Common Functions</a> page to the userguide for globally available functions.</li>
 		</ul>