document interoperability between versions / version requirements

This is more a question than a bug report, only I couldn't find a mailing list or similar.

Does btrbk support running different versions on the local and remote end, and if so, to what extent and with what caveats? I suppose the question not only applies to btrbk itself, but also btrfs-progs and the btrfs kernel support. Any minimum requirements or recommendations? (I'd prefer to stick with packages provided and supported by the respective distribution where possible, esp. on the destination side, currently on Debian buster.)