The latest version 3.1.13 compatible with php 8.0.x, 8.1.x, 8.2.x (and maybe with 8.3.x)

Read more how to upgrade from a previous version.

Tip: for dynamic environment you can use (in the main index.php)

PHP:

define('ENVIRONMENT', (isset($_SERVER['SERVER_ADDR']) && in_array($_SERVER['SERVER_ADDR'], ['127.0.0.1','::1'])) ? 'development' : 'production');

Downlaod