In addition to today’s new iOS 9.3 beta 4, Apple has seeded the fourth beta release for tvOS 9.2 to developers. Today’s tvOS 9.2 beta 4 comes two weeks after Apple released the third beta of tvOS 9.2 and a month after the release of tvOS 9.1.1, a minor update to tvOS 9.1. tvOS 9.2 has been in testing since January 11. 
According to the release notes, there’s a firmware update for the Apple TV Remote. It includes improved motion sensor performance and support for additional sound bar and receiver hardware. The new software also includes support for U.S. Spanish (for those in the U.S. only), French Canadian (for those in Canada only), UK English (for the United Kingdom) Australian (U.S. English) for Siri, redesigned app switcher, and MapKit support.
Along with Bluetooth keyboard support, the tvOS 9.2 update introduces support for grouping apps into folders on the Home screen like on iOS devices, plus it includes a new look for the App Switcher interface and it brings support for iCloud Photo Library and Live Photos.
tvOS betas are more difficult to install than beta updates for iOS and OS X. Installing the tvOS beta requires the Apple TV to be connected to a computer with a USB-C to USB-A cable, with the software downloaded and installed via iTunes or Apple Configurator. Those who have already installed the first three tvOS 9.2 betas will be able to download the fourth update over the air.
We’ll update this post with any new features that are discovered in the fourth beta of tvOS 9.2.
Apple Seeds of tvOS 9.2 Beta 4 to Developers