biblatex update has caused (as many here are well aware) a problem with mismatched versions of
biblatex, and (sometimes) contributed
biblatex packages. @moewe and I recently traded some comments about creating an artificial question that addresses this since neither of us could point to an already existing question that might serve as a good candidate for this. (That is, I assumed such a question existed, I just didn't want to track it down.) Is this something that would be of use? The idea is that all such questions could be closed with pointer to the 'canonical' question and answer.
Alternatively, we could take an existing question and use it as a starting point. This most recent question, e.g., might serve as a decent candidate.