switched from gettype() to is_* for testing type in escape()
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 1f3b4c9..f5a6fbe 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -62,6 +62,11 @@
 SVN Revision: </p>
 
 <ul>
+	<li>Database
+		<ul>
+			<li>Switched from using gettype() in escape() to is_* methods, since future PHP versions might change its output.</li>
+		</ul>
+	</li>
 </ul>
 
 <h3>Bug fixes for 1.7.2</h3>