Modified captcha generation to first look for the function imagecreatetruecolor, and fallback to imagecreate if it isn't available (#4226).
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index e48db0e..230627a 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -74,11 +74,16 @@
 		</ul>

 	</li>

     <li>Helpers

-    	<ul>

-    		<li>Modified <kbd>img()</kbd> in the <a href="helpers/html_helper.html">HTML Helper</a> to remove an unneeded space (#4208).</li>

-    		<li>Modified <kbd>anchor()</kbd> in the <a href="helpers/url_helper.html">URL helper</a> to convert entities in the title attribute (#4209).</li>

-    	</ul>

+		<ul>

+			<li>Modified <kbd>img()</kbd> in the <a href="helpers/html_helper.html">HTML Helper</a> to remove an unneeded space (#4208).</li>

+			<li>Modified <kbd>anchor()</kbd> in the <a href="helpers/url_helper.html">URL helper</a> to convert entities in the title attribute (#4209).</li>

+		</ul>

     </li>

+	<li>Plugins

+		<ul>

+			<li>Modified captcha generation to first look for the function imagecreatetruecolor, and fallback to imagecreate if it isn't available (#4226).</li>

+		</ul>

+	</li>

 </ul>

 

 <h3>Bugfixes for 1.6.2</h3>