Can I convert MariaDB 10.3 to MySQL 8?
At this time, through cPanel & WHM's MySQL or MariaDB Upgrade, there is no current method in which we support converting from MariaDB 10.X to MySQL 8. The system considers MariaDB to be an upgrade from MySQL. If you change the database engine to MariaDB, you cannot change back to MySQL.
More details on Incompatibilities and Feature Differences Between MariaDB 10.x and MySQL 8.0:
Additionally, we have in-depth documentation found here: