public function update_rules() {
		$post_types = CPTP_Util::get_post_types();
		foreach ( $post_types as $post_type ) {
			add_action( 'update_option_' . $post_type . '_structure', array( __CLASS__, 'queue_flush_rules' ), 10, 2 );
		}
		add_action( 'update_option_no_taxonomy_structure', array( __CLASS__, 'queue_flush_rules' ), 10, 2 );
	}