Modify repo file to the version you want to upgrade
Edit File: /etc/yum.repos.d/mariadb.repo
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.2/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
Check which version of MariaDB is installed on your server
MariaDB Repository Changes
Modify repo file to the version you want to upgrade
Edit File: /etc/yum.repos.d/mariadb.repo
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.2/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
Modify 10.2 with the version you want to upgrade
Example for upgrade to MariaDB 11.3.2
[mariadb] name = MariaDB
baseurl = https://mirror.mariadb.org/yum/11.3.2/centos7-amd64/
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
Stop and remove the old version of MariaDB (Databases will not be removed)
service mysql stop
service mariadb stop
systemctl disable mariadb
rpm --nodeps -ev MariaDB-server
Install the new version of MariaDB
yum clean all
yum -y update "MariaDB-*"
yum -y install MariaDB-server
systemctl enable mariadb
service mariadb start
mysql_upgrade