Apple today provided developers with the first beta of an upcoming 9.2.1 update to tvOS, the operating system designed to run on the fourth-generation Apple TV. tvOS 9.2.1 is a minor update that comes two weeks after the launch of tvOS 9.2, a significant update that introduced a range of features from Bluetooth keyboard support and dictation to Siri search for the App Store and app folders.
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.
As a minor 9.x.x update, tvOS 9.2.1 likely focuses on bug fixes and performance updates to address issues discovered since the release of tvOS 9.2. Any new changes found in the tvOS 9.2.1 update will be listed below.