Hi Guido, I've seen you have already started updating the packge for 0.7.0. If there is anything I can do to help, feel free to say so! I would not now how to handle the soname bump though- the so_version was changed from 3.4.1 to 3.5.1...
FYI I've also created a team on tracker (team+swa...@tracker.debian.org) and started to set the maintainer address to the team address. If you want to do that for wlroots to, feel free to do so ;) cheers, Birger