changelog note for ORIG_PATH_INFO fix
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 384e0ef..f48bb0b 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -79,6 +79,7 @@
 <h3>Bug fixes for 1.7.2</h3>
 <ul>
 	<li>Fixed assorted user guide typos or examples (#6743).</li>
+	<li>Fixed a bug with ORIG_PATH_INFO that was allowing URIs of just a slash through.</li>
 </ul>
 
 <h2>Version 1.7.1</h2>