Updated models with AMD graphics options expected in early 2017.
Apple Releases Second iOS 9.2 Beta for Public Beta Testers
Beta testers who have signed up for Apple’s beta testing program and have will receive the second iOS 9.2 beta as an over-the-air update.
Those who want to be a part of Apple’s beta testing program can sign up to participate through the beta testing website, which gives users access to both iOS and OS X betas. As iOS 9.1 was recently released, it will likely be several weeks before we see the public release of iOS 9.2.
According to the release notes for the first iOS 9.2 beta, the Safari View Controller (the view of Safari you see within apps) is being updated with support for third-party Action Extensions that will let it more closely mirror the Safari app. It also includes options to reload content and request a desktop site, as in Safari, and iOS 9.2 beta 2 improves Safari View Controller further, introducing support for dismissing it with an edge swipe.
Along with improvements to Safari View Controller, iOS 9.2 also introduces support for AT&T's NumberSync Wi-Fi Calling feature and includes bug fixes for iCloud Keychain, Apple Watch syncing and pairing, audio quality when streaming to stereo systems, and more.