Downgrading / reverting to a lower version

[ts678]

@AimoE

For one, if no errors come up, I can then safely use the downgraded version.

As downgrade is not tested, no guarantees. As it so far seems to work if DB does, it might continue to.

This might also be a good time to point out that Duplicati at its current best only has beta-level safety…

If you like safety, you should avoid canary because it’s the first outside chance to catch breakage, e.g.:

broken Release: 2.0.4.13 (canary) 2019-01-29

It’s also safest practice to never rely on a single backup, but to use multiple done in different programs.

@AimoE

For second, if an error does come up, I can upgrade back to the version I started with, and continue using it, assuming that the failed downgrade has not corrupted my databases or the backup files in the target filesystem.

Sounds about right. Again, not tested.