We know OS X is now macOS, and the first major version is macOS Sierra. So what new features does it have? SVP of Software Engineering Craig Federighi is on stage at Apple's WWDC keynote running through the new additions and improvements in the software, and there are some great ones.
The main focuses for this update are going to be Continuity, iCloud and "the fundamentals of the Mac experience." The first big new feature for the group is Auto Unlock, which allows you to automatically unlock your Mac with your Apple Watch—meaning, if you have your Watch on, you don't need to type in your password.