In late-May of this year, Apple seeded out the first developer beta for not only tvOS 9.2.2, but also the next iteration of OS X El Capitan, version 10.11.6.
What Apple was missing at the time, though, was the first developer beta for the next version of watchOS. Apple has fixed that, though. Following the seed of iOS 9.3.3 to developers, Apple has also seeded the second developer betas for tvOS 9.2.2 and OS X El Capitan 10.11.6. At the same time, Apple has also seeded the first developer beta of watchOS 2.2.2.
The latest beta version for OS X El Capitan 10.11.6 is build 15G12a, and it’s available through the Update tab in the Mac App Store on a computer running the first beta. It’s also available through the Apple Developer Center.
For developers that want to install the new tvOS 9.2.2 beta, the fourth-generation Apple TV must be plugged into a computer with a USB-C to USB-A cable. Once the set-top box is connected to the computer, the beta software must be downloaded from iTunes and installed on the device directly.
To install the first developer beta of watchOS 2.2.2, the Apple Watch’s battery must be at least 50 percent, and also charging. The Watch must also be in range of the iPhone. The software can be downloaded through the dedicated Apple Watch app available on the iPhone.
As it stands right now, each of the new beta seeds are meant to bring new improvements to performance, and fix other behind-the-scenes issues.