What MySQL versions are supported by Plesk Onyx on CentOS 6?

# rpm -qa | grep -i mysql
plesk-php70-mysql-7.0.32-centos6.18091413.x86_64
mysql-connector-odbc-5.1.5r1144-7.el6.x86_64
mysql-libs-5.1.73-8.el6_8.x86_64
mysql-server-5.1.73-8.el6_8.x86_64
php-mysql-5.3.3-49.el6.x86_64
plesk-mysql-server-17.5.3-cos6.build1705170317.16.x86_64
mysql-5.1.73-8.el6_8.x86_64
plesk-php56-mysql-5.6.38-centos6.18091411.x86_64
plesk-php71-mysql-7.1.23-centos6.18101211.x86_64
perl-DBD-MySQL-4.013-3.el6.x86_64

# cat /etc/system-release
CentOS release 6.10 (Final)

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What MySQL versions are supported by Plesk Onyx on CentOS 6?