public function indexAction()
    {
        $this->html->h2($this->getTopicTitle());

        $displayColumns = array('link'     => '',
                                'context'  => $this->_('Context'),
                                'maxLevel' => $this->_('Max level'),
                                'level'    => $this->_('Level'));

        foreach($this->_upgrades->getUpgradesInfo() as $row) {
            $menuItem = $this->menu->findAllowedController($this->_getParam('controller'), 'show');
            if ($menuItem) {
                $row['link'] = $menuItem->toActionLinkLower($this->getRequest(), $row);
            }
            $data[] = $row;
        }
        $this->addSnippet('SelectiveTableSnippet', 'data', $data, 'class', 'browser table', 'columns', $displayColumns);
        $this->html->br();
        $this->compatibilityReportAction();
    }