Uhm you never actually used a rolling release distro obviously. Why would you have to read change logs? Also what are you referring to with “test my documentation (shell scripts)”? Why would those not work if package xyz is updated? You are not making much sense, but maybe I am lacking the experience in UNIX to understand your point of view.
Your package manager should tell you about conflicts and even if it doesn’t and something is not working like it did before, you do a simple snapshot rollback and wait another week to update or actually read what might cause the issue. And those incidents are like super rare, at least on Opensuse Tumbleweed (e.g. 2-3 times in a year).