That said I also don’t think it’s a reasonable expectation for old binaries to continue to work …
… That said I also don’t think it’s a reasonable expectation for old binaries to continue to work indefinitely. Maintenance is a reality of life of a software developer, and personally speaking if I found myself unable or unwilling to do quick spot checks on each platform my apps run at least once a year, I’d just drop support for those platforms or discontinue the app. That’s not to say that Apple is blameless here, but I think Microsoft has set an unrealistic standard (while also making some things much more difficult for themselves… Windows on ARM for example will never materialize so long as developers expect to be able to toss a binary over the wall and abandon it for a decade, because no matter how good an x86 compat layer is, it’s still significantly worse than native).
Original discussionApple announces ability to download apps directly from websites in EU1,390 source comments · at import