/**
     * Display custom version update notices to the top of our plugin page
     *
     * @param string $basename
     */
    function version_update_notice($basename)
    {
        // We don't want to show both the "Update Required" and "Update Available" messages at the same time
        if ($this->is_addon($basename) && $this->is_addon_outdated($basename)) {
            return;
        }
        $slug = current(explode('/', $basename));
        // To reduce UI clutter we hide addon update notices if the core plugin has updates available
        if ($this->is_addon($basename) && $this->core_update_available()) {
            // Core update is available, don't show update notices for addons until core is updated
            return;
        }
        $licence = $this->licences->get_licence_key();
        $licence_response = $this->licences->is_licence_expired();
        $licence_problem = isset($licence_response['errors']);
        $update_url = wp_nonce_url($this->licences->admin_url('update.php?action=upgrade-plugin&plugin=' . urlencode($basename)), 'upgrade-plugin_' . $basename);
        $installed_version = $this->get_installed_version($slug);
        $latest_version = $this->get_latest_version($slug, $installed_version);
        $plugin_name = isset($this->licences->addons[$basename]) ? $this->licences->addons[$basename]['name'] : $this->licences->plugin->name;
        if (version_compare($installed_version, $latest_version, '<')) {
            ?>
			<div style="display: block;" class="updated warning inline-message">
				<strong><?php 
            _ex('Update Available', 'A new version of the plugin is available', 'as3cf-pro');
            ?>
</strong> &mdash;
				<?php 
            $message = sprintf(__('%1$s %2$s is now available. You currently have %3$s installed.', 'as3cf-pro'), $plugin_name, $latest_version, $installed_version);
            if (!empty($licence) && !$licence_problem) {
                $message .= ' ' . sprintf('<a href="%1$s">%2$s</a>', $update_url, _x('Update Now', 'Download and install a new version of the plugin', 'as3cf-pro'));
            }
            echo $message;
            ?>
			</div>
			<?php 
        }
    }