@Tize,
For maximum stability and reliability one should use the official supported software with Plesk.
However I wanted to let you know that I have been running MariaDB 10.1 for some time now with no issues, also the upgrade procedure to MariaDB 10.1 is described by
@Lloyd_mcse, and states to use it on some systems as well.
If you require it you may go this way, but at your own risk. Maybe
@Lloyd_mcse can give some feedback on this.