oleg_antonyan [1] filed a request to merge mpz-qt5 [2] into mpz [3]: 2.1.4 is the latest version that ships Qt5 AUR package. In fuure releases Qt5 will be removed entirely as support burdain piles up
[1] https://aur.archlinux.org/account/oleg_antonyan/ [2] https://aur.archlinux.org/pkgbase/mpz-qt5/ [3] https://aur.archlinux.org/pkgbase/mpz/
