I am trying to test the beta of osCommerce 4 and ran into a problem because its database uses DEFAULT CURRENT_TIMESTAMP on DATETIME fields which MariaDB didn't support until version 10. I have the beta in an ibay named osc4 and have installed the MariaDB 10.5 contribution. The problem is osCommerce 4 doesn't have a setting for the mySQL port and socket but just uses the PHP defaults and I'm not sure how to set up MariaDB 10.5 as the default version of mySQL used by any version of PHP I might choose to run on the osc4 ibay. I suspect that I will need to set up a custom template for php-fpm.d but I'm not quite sure how I would need to word it.
After looking at the MariaDB 10 contributions and noticing that the end of life for version 10.1 was in 2020 before SME10 was released, I must admit that I'm wondering why SME10 comes with MariaDB 5.5.8 rather than some version of MariaDB 10 in the first place.