public function gitHubUpdater() {
		static $updater = null;
		if ( $updater === null ) {
			$updater = \Puc_v4_Factory::buildUpdateChecker(
				'https://github.com/pressbooks/pressbooks/',
				untrailingslashit( PB_PLUGIN_DIR ) . '/pressbooks.php', // Fully qualified path to the main plugin file
				'pressbooks',
				24
			);
			$updater->setBranch( 'master' );
			$updater->getVcsApi()->enableReleaseAssets();
		}
	}