I need to downgrade my cluster to a lower version of Singlestore.
As stated in our documentation, downgrading from your current version is not possible. Newer versions introduce changes, rendering databases no longer compatible with older versions of the engine.
To downgrade to an older version of the engine, export all the user data (ie. using `mysqldump` or using sdb-admin dump command). It is important to export the data rather than taking a regular backup as you can't successfully restore a backup taken on a newer version of the engine to an older version of the engine.
Once the data is exported, destroy the cluster and re-deploy it with the desired version of the Singlestore engine (see https://docs.singlestore.com/db/v7.8/en/deploy.html)