Apple has launched the second developer beta for tvOS 9.2.2 for the Apple TV. If you're a developer interested in testing the latest build, you can grab it at the tvOS Developer Resource Center.

Apple releases tvOS 9.2.2 beta 2 to developers

This follows the recent release of tvOS 9.2.1 to the public. Like the previous release, it's likely that tvOS 9.2.2 simply contains bug fixes and performance improvements. However, we'll know more once the full release is here.