MarsSeed [1] filed a request to merge ktechlab-qt5-git [2] into ktechlab-git [3]:
Eliminating duplication. Both are abandoned, broken builds, but as upstream is already on Qt5, no need to keep separate packages. 'ktechlab-git', which is now an orphan, should be updated by using ktechlab-qt5-git's PKGBUILD as a starting point. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ktechlab-qt5-git/ [3] https://aur.archlinux.org/pkgbase/ktechlab-git/
