How to upgrade MySQL 5.5 to 5.6 : 5.7 or MariaDB 5.5 to 10.x on Linux?
To find out your Linux distribution, run 1: plesk version | grep “OS version” Or: 2: cat /etc/*-release Note: MySQL will not be upgraded on CentOS/RHEL-based operating systems if it was installed from the Webtatic Yum repository: 3: rpm -qa | grep -i mysql mysql55w-server-5.5.57-1.w6.x86_64 follow this link https://support.plesk.com/hc/en-us/articles/213403429–How-to-upgrade-MySQL-5-5-to-5-6-5-7-or-MariaDB-5-5-to-10-x-on-Linux-