Ticket #11466: 11466.diff

wp-admin/update-core.php

@@ -101 +101 @@
         <?php screen_icon(); ?>
         <h2><?php _e('Upgrade WordPress'); ?></h2>
 <?php
+        do_action('pre_core_upgrade_preamble');
         if ( !isset($updates[0]->response) || 'latest' == $updates[0]->response ) {
                 echo '<h3>';
                 _e('You have the latest version of WordPress. You do not need to upgrade');