Tried to upgrade from Plesk Onyx 17.5.3 #45 to 17.8 But an error occured regarding needed MariaDB:
Fatal error during packages installation: [u'ERROR with transaction check vs depsolve:',
'mariadb-server >= 5.0.60 is needed by plesk-mysql-server-17.8.11-cos7.build1708180301.19.x86_64']
Trying...