> I guess an architecture change was as good a reason as any to revert back to a normal, sane versioning system where the first number increments like most programs. But it's just weird how "unannounced" or unacknowledged it is.
There are many ways to version software.
They changed the major version from 9 to 10 when they went from classic Mac OS to the NeXTSTEP-based Mac OS X.
Arguably they could have bumped the major version a couple of times between them and now, for example when they dropped support for the PPC architecture back in 10.6 Snow Leopard. Likewise, when they deprecated Carbon in 10.8 Mountain Lion (alternatively, with the release of macOS 10.15 Catalina when Carbon was officially discontinued and removed entirely). And probably they could have had other major version bumps along the way too.
Nonetheless, the fact that they didn’t hasn’t really seemed that strange to me for a long while, given like I said, that there are a lot of ways to version software.
Choosing Big Sur as the name for the first major version bump in a long while seems like no coincidence to me.
From the Wikipedia article about Big Sur, California:
> It is frequently praised for its dramatic scenery. Big Sur has been called the "longest and most scenic stretch of undeveloped coastline in the contiguous United States," a "national treasure that demands extraordinary procedures to protect it from development" and "one of the most beautiful coastlines anywhere in the world, an isolated stretch of road, mythic in reputation."
> The stunning views, redwood forests, hiking, beaches, and other recreational opportunities have made Big Sur a popular destination for about 7 million people who live within a day's drive and visitors from across the world. It is among the top 35 tourist destinations world-wide.
> The region receives about the same number of visitors as Yosemite National Park [...]
Seems to me that the release of this version of macOS is a big deal to Apple, and I would agree that it is. With the introduction of their upcoming computers that will be running ARM CPUs, I can see how they would want to signify that this is something really worth noting both in the version number and in the name.
Personally I am really excited to see these new upcoming computers, and to use them and the macOS 11 Big Sur.