Continuity, Siri, a new name.
That is essentially everything new about the latest edition of Apple’s desktop OS. Apple’s WWDC 2016 conference took place last night, where Apple introduced a host of new optimisations and features for macOS, of which the highlight has to be the change of name from OS X to macOS. Officially named macOS Sierra, the name of the 16-year-old operating system is being changed to align all Apple operating systems and give them a more unified naming scheme with iOS 10 and other operating systems. Sure, it does not add much functionality to your life with a Macintosh, but Apple wanted to get the big announcement out of the way, before making announcements that do make a difference.