I’ve always seen MacOS releases like a UNIX distribution release, encompassing more than just the OS, including userland applications and development tools. It

I’ve always seen MacOS releases like a UNIX distribution release, encompassing more than just the OS, including userland applications and development tools. It seems that by locking their userland application release cadences to that of the rest of the distribution they lower the number of unique configurations of userland applications and OS components they have to support in the wild. I’d imagine this has implications with regards to the cost of support.