I'm currently investigating how much effort we would need to port the Ubuntu Unity-2D, from Qt4 to Qt5.
I know that Qt5 aren't ready yet and I don't expect to find that they're stable nor without bugs.
But I suppose that the base is already there and I could start understanding which kind of changes our code will need to be compatible with Qt5.
We can just run something written for Qt4 using Qt5 libraries?
We can recompile it with Qt5?
What are the main differences of Qt5 to pay attention to when porting from Qt4?
Thanks for your help!