> I don’t necessarily agree with Jeff Johnson’s conclusion that major software upgrades are impossible on an annual schedule.

Snow Leopard was a refinement of Leopard, and both releases had unusually long durations as the newest release of Mac OS X, totaling 4 years. It then continued getting security updates until late 2013, another 2 years after Lion replaced it. I can see how people would treat the later point releases of Snow Leopard as a high point for stability because of the years of bug fixes that had gone into the system by then.

> As I age I realize you need to entice the user with more value and service - anew features. It cannot just be quality, but quality is table stakes and the minimum expectation.

I don't know anybody who's switched to Mac because of a feature they added in the latest OS release. It's always because of the better price-performance, the better battery life, or because Windows got too glitchy and annoying. The only new Mac OS feature from the past few years that I can even name off the top of my head is when they finally added window snapping with Sequoia.