I had a white screen rather than 500 error after upgrade.
Move plugin dir for SNAP to temp dir, site comes back to life.
Implemented the fix above and put the snap plugin directory back – white screen again.
Anyone got any other suggestions?
Equally worried about API auto updates if this can happen – if I do a manual update and it goes down immediately I have some idea what the cause was. If you update when I don’t know about it, then site can be down for hours or days (in this case about 21 hours) before I find out, and then I have no idea what the cause is and it takes far longer to narrow it down and fix it.