Notes for Downgrading Local Edition 5.4.1 to an Earlier Version

Kubernetes Notes

In place upgrade of a supported Local Edition cluster to Local Edition 5.4.1 is not possible on Kubernetes deployments, due to the fact that the group replication is ON with the MySQL and the upgrade involves configurations on the my.cnf.

In place upgrade, in case of Kubernetes, is not limited to DDLs and DMLs alone, hence the limitation. However, in case of Swarm deployment of Local Edition 5.4.1, it is possible to perform an in-place upgrade because MySQL group replication is OFF in that form factor.

As a corollary, in place rollback from Local Edition 5.4.1 to an earlier supported version is also not possible on Kubernetes deployment. It is possible with Swarm deployment.

MySQL Notes

For MySQL rollback, roll back from Local Edition 5.4.1 to 5.4.0, then roll back from 5.4.0 to 5.3.1, and then roll back from 5.3.1 to 5.3.0.