Added $this->db->dbprefix() to manually add database prefixes.
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 66aa635..8b086fb 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -88,6 +88,7 @@
 	<li>Other Database Related

 		<ul>

 			<li>Added $this->DB->save_queries variable to DB driver, enabling queries to get saved or not. Previously they were always saved.</li>

+			<li>Added $this->db->dbprefix() to manually add database prefixes.</li>

 			<li>Added 'random' as an <kbd>order_by()</kbd> option , and removed &quot;rand()&quot; as a listed option as it was MySQL only.</li>

 			<li>Added a check for NULL fields in the MySQL database backup utility.</li>

 		    <li>Added &quot;constrain_by_prefix&quot; parameter to db-&gt;list_table() function.  If set to TRUE it will limit the result to only table names with the current prefix.</li>