pocketmine\updater\AutoUpdater::checkUpdate PHP Метод

    protected function checkUpdate()
    {
        if ($this->updateInfo === null) {
            return;
        }
        $currentBuild = $this->server->getPocketMineBuild();
        $newBuild = $this->updateInfo["build"];
        if ($currentBuild < $newBuild) {
            $this->hasUpdate = true;
        } else {
            $this->hasUpdate = false;
        }
    }