We're starting to see a lot of preparation for Qt6 porting API which we know will be deprecated.
One place where this is problematic is Breeze + Oxygen QStyles where we currently provide Qt4 builds. I don't want this to hold us back and be a problem later. It's also a problem for some shadow cleanup happening now (D26475) I propose that we completely drop the Qt4 builds from Breeze+Oxygen after Plasma 5.18. We're seeing distros phase Qt4 out, even Debian - and if a distro does still want to package these, they will still have the option of building the Plasma 5.18 tarball for Qt4 even after Plasma moves to a new revision. CC'ing packagers to give them a chance to shout. David
