Andrea Scarpino wrote: A new `qt4` package in [extra]. This replaces the current `qt` package. All packages depending on `qt` need to be rebuilt to depend on `qt4`. We have done this for all official packages, but you will need to rebuild packages installed from the AUR that depend on `qt`. Qt 5.x is now also available in [extra]. When you install both `qt5-base` and `qt4` any Qt tool will refer to the 5.x version. We provide *-qt4 symlinks so you can explicitly force the 4.x version when you need it. URL: https://www.archlinux.org/news/qt4-replaces-qt/