Apple has today seeded the first beta of tvOS 9.2.1 to developers. This comes only a few weeks after the release of tvOS 9.2 to the public. We’re not sure what’s new in this version. However, we’re guessing that it’s likely bug fixes and other minor improvements. Apple usually doesn’t seed betas this small to developers so there must be some changes that may affect developers’ apps.
To get this version you can download it from the Apple Developer Center After that you will need to connect the Apple TV to your Mac via the USB-C cable. Finally, you will be able to install the beta via iTunes.