Snapshotting for rollback after updates was[ Re: Drawing lessons from fatal SELinux bug #1054350]

[Kevin Kofler]

Chris Murphy wrote:
> I wouldn't ever expect this with a minor version or security update. I'd
> consider it a complete betrayal of software versioning to do this. In fact
> in certain instances of major version changes, downward compatibility of
> the file format is expected.

The compatibility is often only one way, i.e. newer versions can read older 
config files just fine, but not the other way round.

        Kevin Kofler