OpenSuse’s solution, a rolling release that delays package updates to test and iron out bugs before pushing updated versions out.
Kind of what Manjaro does with the Arch base. Could be called slowroll too, as it is a rolling release with packages holding back and releasing them at once after some time. The idea is to test them before release, but I'm not sure if the Manjaro team does or did a great job at this in the past (years ago when I used it). The big problem with Manjaro was if you used the AUR, which always expected the current and newest packages without holding back. I guess OpenSUSE does not have such a problem, right?