Ticket #17838: 17838.2.patch

wp-includes/update.php

@@ -362 +362 @@
 
         $update_title = ! empty( $update_title ) ? esc_attr( implode( ', ', $update_title ) ) : '';
 
-        return array( 'counts' => $counts, 'title' => $update_title );
+        return apply_filters( 'wp_get_update_data', array( 'counts' => $counts, 'title' => $update_title ) );
 }
 
 function _maybe_update_core() {