Second macOS Sierra GM Seed Available for Testers
Apple has released a new GM candidate seed of macOS Sierra to Mac users running the beta version of system software.
The new macOS Sierra GM build is versioned as 16A323 and can be downloaded now from the Mac App Store. Presumably the small revision includes bug fixes to be included before the widespread release.
Currently the updated GM build is only available to Mac users in the Developer testing program, but traditionally Public Beta testing users get the same software updates soon after. Presumably that will apply here as well.
Major new features in macOS Sierra include the inclusion of Siri, enhanced iCloud integration, the ability to unlock a Mac with an Apple Watch, improved compatibility with iOS 10 devices, along with many other small feature improvements to the Mac operating system.
MacOS Sierra 10.12 is set to be available to everyone on the wide release day next week on September 20. Most Macs that were built after late 2009 will support Sierra, but you can check the macOS Sierra compatible Macs list here if you are uncertain if your Macintosh can use the upcoming system software release.