This is reassuring. I hope that by the time I need to replace that Catalina or its successor will be stable. I keep an eye on refurbished 2015 MBPs because my friends who have them rave about them and don't want to give them up.

BTW, I am still relatively new to HN. This article/thread is marked as 'flagged' for some reason and I have to access it through my own "Comments" link. Can anyone explain why? It seems on-topic. I have not submitted anything yet and am trying to understand the ground rules.