We recommend that you use the current long-term support (LTS) version of the MariaDB database for your Plesk server.

An old version of the database server poses a risk because, in this case, the server’s web applications use the old version as well. New versions of MariaDB are more stable, secure, efficient, and have more useful features compared to old versions.

In the Plesk interface, you can upgrade your MariaDB database server to the current long-term support (LTS) version.