We have added PHP 7.3.x support to all Plesk based servers. This will appear as an additional option in the PHP version selector under the PHP settings in your control panel. PHP 7.3 increases performance even more over previous versions.
Currently, we support PHP versions 5.6.x, 7.1.x, 7.2.x and now 7.3.x. Patch level updates ('.x') are automatically updated on a regular basis. Once a specific PHP version reaches end of support status, it will be removed. Please make sure your applications are updated and compatible with officially supported PHP versions. You can view active support status of specific PHP versions at the following URL: http://php.net/supported-versions.php
Please note that support for PHP 7.0.x has been depreciated and the option has been removed. PHP 5.6 support will also be depreciated in the near future. We do not recommend using PHP 5.6 at this time.