Fixed a bug in the URL Helper where prep_url() could cause a PHP error on PHP versions < 5.1.2.
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 5740f73..9bb4a4e 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -184,6 +184,7 @@
<li>Fixed a bug where getimagesize() was being needlessly checked on non-image files in is_allowed_type().</li>
<li>Fixed a bug in the Encryption library where an empty key was not triggering an error.</li>
<li>Fixed a bug in the Email library where CC and BCC recipients were not reset when using the clear() method (#109).</li>
+ <li>Fixed a bug in the URL Helper where prep_url() could cause a PHP error on PHP versions < 5.1.2.</li>
</ul>
<h2>Version 1.7.2</h2>