This needs to be tested on a wide range of distros, not just Debian, and not just Gnome, Cinnamon, XFCE, etc and Windows.
I don't think it needs to be tested on all thinkable distributions (just tried briefly on macOS and it seems to work), it should work the same way everywhere.
On the other hand it's not just a few functions renaming and a few strings renaming as I thought it would be and we are just too close to the release (and too close to the midnight - at least those of us living in the correct hemisphere and time zone ;-) so I'd say better to postpone this after 2.0.