public static function instance( $wp_rewrite = null ) {
		if ( version_compare( Common::VERSION, '4.9.11-dev', '>=' ) ) {
			return parent::instance();
		}

		/**
		 * Deprecated piece of code, but we need it in place to make sure
		 * we dont break with older version of Event Tickets.
		 *
		 * @todo  remove once we have common version compare back working
		 */
		if ( ! static::$instance ) {
			static::$instance = new static;
			static::$instance->setup();
		}

		return static::$instance;
	}