Note that Jerboa 0.50 which is still the latest in the Play Store is broken with Lemmy 0.19. The newly released 0.53 should work but it's not on the stores yet.
Suggestion:
Check that the compatible Jerboa version is on the Play Store before upgrading Lemmy. That way non-technical users like my wife won't see breakage. Or alternatively upgrade several days after the official Lemmy release.
I'd just delay the update for a few days up to a week. That would give a chance for most maintained apps to release updates via their respective channels. Then I wouldn't have to care and check for specific apps.
The app developers were warned like a month ago that this would be a breaking change, they had lots of time to release patches and there's been a few large instances on the beta of 0.19 for well over a week.
IMHO It's not really sensible for us to go test the apps and then hold back on upgrading just because one of the dozen apps isn't compatible yet.
Importantly, the signatures of the F-Droid build is different than the one from Github, is different than the one for the Play Store. As a result, you can't update an app installed from one of these sources with a build from another. 😮💨