This isn't what OS X is doing, though. Some OS X updates are shipped too early, in order to hit a WWDC deadline. Apple is getting better at that though, by ship

This isn't what OS X is doing, though. Some OS X updates are shipped too early, in order to hit a WWDC deadline. Apple is getting better at that though, by shipping major new features in OS updates throughout the year. Previous Windows updates were shipped too slowly, due to having to amass enough updates to justify a three digit price tag. Now, updates to Windows will be shipped to consumers when they're ready. No predetermined release schedule. I would compare this strategy more to evergreen browsers like Chrome.