> Likely because there's a part of the iCloud stack that was set up by code that's not in Mojave That's my point - if it's a software requirement then it can i

> Likely because there's a part of the iCloud stack that was set up by code that's not in Mojave That's my point - if it's a software requirement then it can in theory be added to say Mojave 10.14.7. > that was never advertised as a feature of Mojave so I fail to see why there would be any expectation that this would be added to Mojave This is software, so I highly doubt that the real reason is technical (why can't the code be added to Mojave?) just that Apple feels they may suffer long term if they reward people for not updating to major releases, or it's too costly to maintain so many forks of macOS. I wouldn't care nearly as much if Catalina didn't drop support for 32-bit apps.