Manager::getVersion

static function getVersion()
{
	static $arModuleVersion = null;

	if ($arModuleVersion === null)
	{
		$arModuleVersion = [];
		include self::getDocRoot() . '/bitrix/modules/landing/install/version.php';
	}

	return isset($arModuleVersion['VERSION']) ? $arModuleVersion['VERSION'] : null;
}