Apple has just seeded the third beta of tvOS 9.2.1 to developers, the operating system designed to run on the fourth-generation Apple TV. Today’s beta comes one week after tvOS 9.2.1 beta 2. tvOS 9.2.1 has been in testing since April 6.
The new software is smaller in scale than the previous release, focused on behind-the-scenes tweaks and improvements. tvOS 9.2.1 comes more than a month after the launch of tvOS 9.2, a significant update introducing features like Bluetooth keyboard support, dictation, Siri search for the App Store, app folders, and more.
To install the new beta on the fourth-gen Apple TV, you’ll need to connect the set-top box to a computer via a USB-C to USB-A cable. Once that is done, download the beta software and install it on the Apple TV through iTunes or Apple Configurator.