Frameworks 5.22.0 & KDE Applications 16.04.1 were released to the packagers today and yesterday. These are not final tars so if you find issues report them here, NOT upstream at KDE. Since these are not released you can't file bug reports anyway, these builds are intended for internal testing.

Release by KDE of these will be later next week.

Kwayland has now moved from Plasma to Frameworks, for the rest you should not notice any real changes

Kwallet not work.

Confirmed, hopefully a kwalletmanager rebuild will fix this.

Upstream bug, faulty commit broke 5.22.0 kwallet:

I'll wait 1-2 days for a new tar/fixed commit, otherwise do a reverse patch of this broken commit.

In the meantime use apps kwallet: sudo pacman -S apps/kwallet and logout/login to have kwallet work again.