[Solved] Problem with apt-get upgrade and kde-style-qtcurve-qt5?

[leszek]

This is a style package basically providing the qtcurve widgets theme. If you don't use it or want to use it you can remove the package. (there is no other way to hide this message)
The reason it isn't updating is because it is incompatible with the newer qt version we provide.
This will be fixed in the future with backports and maui 3.