only in patch2:
unchanged:
--- a/core/themes/bartik/templates/page.tpl.php
+++ b/core/themes/bartik/templates/page.tpl.php
@@ -170,7 +170,7 @@
   <?php endif; ?>
 
   <?php if ($page['featured']): ?>
-    <aside id="featured"><div class="section clearfix">
+    <aside id="featured" role="complementary"><div class="section clearfix">
       <?php print render($page['featured']); ?>
     </div></aside> <!-- /.section, /#featured -->
   <?php endif; ?>
@@ -206,13 +206,13 @@
     </section></main> <!-- /.section, /#content -->
 
     <?php if ($page['sidebar_first']): ?>
-      <div id="sidebar-first" class="column sidebar"><aside class="section">
+      <div id="sidebar-first" class="column sidebar"><aside class="section" role="complementary">
         <?php print render($page['sidebar_first']); ?>
       </aside></div> <!-- /.section, /#sidebar-first -->
     <?php endif; ?>
 
     <?php if ($page['sidebar_second']): ?>
-      <div id="sidebar-second" class="column sidebar"><aside class="section">
+      <div id="sidebar-second" class="column sidebar"><aside class="section" role="complementary">
         <?php print render($page['sidebar_second']); ?>
       </aside></div> <!-- /.section, /#sidebar-second -->
     <?php endif; ?>
@@ -220,7 +220,7 @@
   </div></div> <!-- /#main, /#main-wrapper -->
 
   <?php if ($page['triptych_first'] || $page['triptych_middle'] || $page['triptych_last']): ?>
-    <div id="triptych-wrapper"><aside id="triptych" class="clearfix">
+    <div id="triptych-wrapper"><aside id="triptych" class="clearfix" role="complementary">
       <?php print render($page['triptych_first']); ?>
       <?php print render($page['triptych_middle']); ?>
       <?php print render($page['triptych_last']); ?>