macOS Sierra has been used by developers and public beta testers all summer, and today the Mac software update is available in GM form as Apple prepares it for primetime. The latest release is available now through the Mac App Store. macOS Sierra’s headlining feature is Siri on the Mac with other features like Auto-Unlock which lets Apple Watch users skip the password login screen.
Apple Pay is also coming to Safari with macOS Sierra, although we haven’t seen the feature live on the web yet. Testing macOS Sierra currently requires a new promo code for registered developers that you redeem through the Mac App Store. If you’re just jumping in to macOS Sierra testing with the GM or you’ve already been testing Sierra betas, head to Apple’s developer page to find the promo code associated with your account.