With the release today of Plasma 5.11.95 (5.12 Beta) it is time again to use kde-next for the next 3 weeks or so.
Packages are up:
No new additions this time, though lots of changes to the build of KWin (closer to fully usable Wayland).
As always add kde-next as the first option in your pacman.conf and make sure the build repo is also enable.
If you do not know how to adjust for that, then please don't try to use kde-next, adjusting pacman.conf is by far the easiest part of helping with testing. Just wait a few weeks until is stable and well tested, then it will land in the regular apps repo.