Confirming 4.72 will NOT work with mysql/mariadb 5.5?

Based on the server requirements doc, it appears Kayako no longer runs on the version of MySQL/Mariadb that comes with RHEL 7, which would be MariaDB 5.5. It seems odd that an enterprise application would have a requirement that makes you select amongst run a non-enterprise OS release (Fedora), build the db server your helpdesk runs on from source and then deal with recompiling every time an update comes out, or use some random person's rpm and hope they don't screw up.

Is there no way to use...

Confirming 4.72 will NOT work with mysql/mariadb 5.5?