Public Beta of macOS Sierra Now Available
Apple's public beta program for macOS Sierra is now live following this morning's announcement that both iOS 10 and macOS Sierra would be made available today. macOS Sierra will include a number of changes and new features such as Siri integration, Apple Pay for Safari, Auto Unlock via Apple Watch, and improvements for Photos, Messages, and Apple Music.
As with iOS 10, users interested in testing out macOS Sierra should visit Apple's Beta Software Program website for more details and to register for the program. Once accepted, you should be able to access a redemption code and download link to allow you to access the Sierra installer in the Mac App Store. Make sure you have a complete backup of your system before upgrading.