Earlier quoted context omitted.
From what I could find, the first announcement of dropping support for 32 bit apps was in 2017, and the support dropped in 2019. Why would an app maker update their old apps before an announcement was made that they would be deprecated?
> Why would an app maker update their old apps before an announcement was made that they would be deprecated? Almost immediately after 64-bit support was added in 2005, it was the recommended path, not only for new apps but for existing ones to migrate to. For example, an document called "64-bit Transition Guide for Cocoa" [1] was first published in 2007. A few years later, another document [2] was more explicit: > S…
Not to mention, for better or worse, games in particular were 32bit through 2018 at least. I imagine this must have had something to do with cross platform compatibility, although I can't imagine what.