Apple has released new public beta versions:

Apple Releases First iOS 10.1 Beta to Public Beta Testers With Portrait Mode for iPhone 7 Plus
Apple Releases First macOS Sierra 10.12.1 Beta for Public Beta Testers

Apple Releases First iOS 10.1 Beta to Public Beta Testers With Portrait Mode for iPhone 7 Plus

Apple today seeded the first beta of an upcoming iOS 10 update to public beta testers for testing purposes, just under two weeks after releasing iOS 10 to the public and one day after providing the iOS 10.1 beta to developers.

Beta testers who have signed up for Apple's beta testing program will receive the iOS 10 beta update over-the-air after installing the proper certificate on their iOS device.

Read full article @ MacRumors

Apple Releases First macOS Sierra 10.12.1 Beta for Public Beta Testers

Apple today seeded the first beta of an upcoming macOS Sierra update to public beta testers, one day after seeding the beta to developers and two days after releasing the first version of macOS Sierra to the public.

Beta testers who have signed up for Apple's beta testing program will receive the macOS Sierra beta through the Software Update mechanism in the Mac App Store.

Read full article @ MacRumors