diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 79156e3..d22dcba 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -76,6 +76,7 @@
 		<ul>
 			<li>Added the ability to store libraries in subdirectories within either the main "libraries" or the local application "libraries" folder. Please see the <a href="libraries/loader.html">Loader class</a> for more info. </li>
 			<li>Changed the output of the profiler to use style attribute rather then clear, and added the id "codeigniter_profiler" to the container div</li>
+			<li>Added <kbd>is_natural()</kbd> and <kbd>is_natural_no_zero()</kbd> to the <a href="libraries/validation.html">Validation class</a>.</li>
 		</ul>
 	</li>