Working with snapshots of the same version you have to manually keep track of new options added to the config files since automatic config migration isn't triggered.

Sine we know about all usable config options in code we can initially parse each config file and check for existence of each option. Maybe we can also find a way to check for matching types (e.p. equals map of strings) to be safe for possible future type changes.

I'd like to get some comments about if this will also work for conversions like the past one for synchronization groups & roles into etc. Also feel free to note everything else which could probably trouble us.