I am reading the documentation about Vault upgrade process and see this disclaimer:
" Important: Always back up your data before upgrading! Vault does not make backward-compatibility guarantees for its data store. Simply replacing the newly-installed Vault binary with the previous version will not cleanly downgrade Vault, as upgrades may perform changes to the underlying data structure that make the data incompatible with a downgrade. If you need to roll back to a previous version of Vault, you should roll back your data store as well."
Am I right that Vault does not provide built-in tools for performing a downgrade? E.g. a tool which rolls back breaking changes from a newer version.
Could you please describe somewhere in the documentation step by step, how the downgrade process should be performed? Could I perform a downgrade without a downtime?
Thanks in advance!