Barely released iOS 10.2, watchOS 3.1.1 and tvOS 10.1, and then macOS Sierra 10.12.2, Apple is starting testing today iOS 10.2.1 (compilation 14D10), from macOS Sierra 10.12.3 (16D12b) and the tvOS 10.1.1 (14U707) with developers.
As soon as we know if there is something new / visible in the new versions (in addition to the traditional bug fixes and general improvements), we will notify you here on the site.
In parallel, Apple is also testing the Safari 10.0.3 (compilation 602.4.2) in independent version for OS X El Capitan and OS X Yosemite. Soon, as always, iOS 10.2.1 and macOS Sierra 10.12.3 should also be painted in the Apple Beta Software Program.
Update · 12/15/2016 s 17:07
As planned, the first test builds for iOS 10.2.1 and macOS Sierra 10.12.3 are now also available on Apple Beta Software Program.