We currently have a 4-node master-3slaves MariaDB 10.1.40 setup. We forced the version to 10.1.40 because replication would no longer work on 10.1.41 (which is a known problem).
We would like to upgrade to 10.2 or 10.3 at some point in the near future.
How should I do this? Does CluCo have any functionality to help with this?
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