commit 81963eedea0563f28fd847aee9fff2624b4c4355
Author: Joel Pittet <joel@pittet.ca>
Date:   Tue Dec 10 00:04:41 2013 -0800

    merge in class

diff --git a/core/modules/update/update.report.inc b/core/modules/update/update.report.inc
index 98b450d..c6a0512 100644
--- a/core/modules/update/update.report.inc
+++ b/core/modules/update/update.report.inc
@@ -331,6 +331,7 @@ function template_preprocess_update_version(&$variables) {
   $version = $variables['version'];
 
   $variables['attributes']['class'][] = 'version';
+  $variables['attributes']['class'] += $variables['class'];
   $variables['version_link'] = l($version['version'], $version['release_link']);
   $variables['version_date'] = format_date($version['date'], 'custom', 'Y-M-d');