To upgrade your SMS Gateway to the latest version, ensure your server is running PHP 8.3 or higher. Follow the steps below to complete the upgrade:
config.php and the uploads folder.SMS-Gateway.zip into your SMS Gateway directory.upgrade.php script or visit the login page to finalize the process.Upgrading directly from v1.x.x or v2.x.x to v9.x.x is not supported. If you are using v1.x.x or v2.x.x, a fresh installation is required.