Upgrade
This section contains documentation about performing upgrades (and rollbacks) on:
MySQL upgrades (workload)
There are two types of in-place workload upgrades:
- Major upgrades - E.g. MySQL
8.0→ MySQL9.0- Not supported
- Minor upgrades - E.g. MySQL
8.0.33→8.0.34(includes charm revision bump)
This charm only supports in-place minor upgrades.
To upgrade to a major MySQL version, one must install a new cluster separately and migrate the data from the old to the new installation. This documentation will be updated with the migration instructions when a new MySQL version becomes available.
Juju upgrades
New revisions of the charm may require that you do a major or minor Juju upgrade.
See: How to upgrade Juju