The new beta can be downloaded both via OTA or through the Apple Developer Center for developers and beta testing site for registered users. iOS 9.2 brings some changes in Safari View Controller (which allows apps to use all third-browser extensions) and the ability to use the NumberSync, now available in the US only.
iOS 9.2 continues to expand language support for Siri and added the Arabic, which until now was not cmpatibilidad wishlist. The company has opened new stores in Abu Dhabi and Dubai, so this move is key to its expansion strategy in the UAE. Finally, and as befits any update, iOS 9.2 contains performance enhancements as a more fluid interface and a 3D Touch multitasking faster, especially in the iPhone 6s Plus, where some users had complained of his slowness. The solution package bug is also present, with some patches for bugs and improved interface audio playback via Bluetooth. So far Apple has not given a release date for iOS 9.2, but it should not take long.
The third beta of iOS 9.2 fixes some bugs and improves overall performance. Apple also released the second beta of tvOS 9.1, which allows you to also use Siri on Apple Music.