What on earth are you talking about? Take a look at the repository mirror here, for example: https://github.com/qtproject/qtbase/ https://github.com/qtproject/

What on earth are you talking about? Take a look at the repository mirror here, for example: https://github.com/qtproject/qtbase/ https://github.com/qtproject/qtbase/. You can easily see plenty of commits that change src/widgets. Seriously, please point to where you get these ideas from, because they're just extremely odd and surprising, seemingly coming out of nowhere as if somebody were spreading FUD. (One theory that I have is that there may be confusion about the API and ABI compatibility guarantees that Qt makes. If you're not used to the C++ way of doing things, it's easy to misunderstand their policy. I assure you that there are no artificial limitations to changes in Qt, and if you have concrete grievances with something you should try and get it fixed inside Qt just as with any other open source project.)