[shmerl]

Usually, but it's not the case here. In the case you described, you'll see the new upload in unstable, that didn't get to testing yet. In this case, it's simply not there at all:

https://tracker.debian.org/pkg/plasma-desktop

So I wonder if there is some kind of other blocker.

[zozbot234]

Looks like it's being kept out of unstable until other transitions are complete. E.g. see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919218

[shmerl]

Interesting. Hopefully once this is resolved, new Plasma will follow.

And regarding KDE and Qt. I wish Qt already would have Vulkan options instead of OpenGL, and KWin would use it as well.