Question MariaDb-Galera 10.4.27 to 10.11.6

[homecineplexx]

Server operating system version

Rocky Linux 8.8

Plesk version and microupdate number

18.0.54 Update #3

Hello
Does anybody know how to update a MariaDb Galera Cluster from 10.4.27 to 10.11.6?
Or is it possible to upgrade only one site of the Cluster to 10.11.6 and the other side will run with 10.4.27 for a while, because of testing and finding some troubles - is there a incompatibility between 10.4.27 and 10.11.6?
big thanks for helping
regards

 

[Ohya]

Hi

I recomend you read changes from boht mariadb version

Then you can check galera versión: What is MariaDB Galera Cluster?

And of course, try upgrade in non production server version first

In any case, in wsrep version is same you may not have issues in sync, but may get issues in configuration of mariadb.