Beta Downloads Live: iOS 10, watchOS 3, tvOS 10, macOS 10.12, Xcode 8
Developers betas are now available for iOS 10, watchOS 3, tvOS 10, macOS 10.12 and more.
macOS
App Store Guidelines Page Accidentally Prints ‘macOS’ Instead of OS X
All signs again point to the rebranding of OS X to macOS.
OS X May Be Rebranded as ‘macOS’ at WWDC
Apple's Mac operating system could soon return to the name "macOS".