macOS Sierra 10.12.1 Beta 4 Released
Apple has released the fourth beta version of macOS Sierra 10.12.1 to users enrolled in the beta testing programs.
No major new features are expected to be included in Mac OS 10.12.1, as the release is likely to focus on patching bugs and system refinement, hopefully resolving some of the known albeit rare problems with Sierra discussed here.
For users in the developer beta or public beta programs, you can download the macOS Sierra 10.12.1 beta 4 version now from the Mac App Store Updates section now.
Anyone can choose to enroll in the macOS beta program, though typically beta system software releases are best reserved for advanced users to run on their non-primary hardware.
Apple usually goes through several beta releases before unveiling the final version to the public. There is some speculation that the final version of macOS Sierra 10.12.1 will be released near the end of the month, perhaps alongside updated MacBook Pro hardware.