Members of Apple’s free Public Beta Software Program can now download and install a second public beta of tvOS 11 on their fourth-generation Apple TV. tvOS 11 public beta 2 has the same features as tvOS 11 beta 3 that was seeded to developers two days ago.
tvOS 11 includes minor improvements such as the ability to synchronize your Home screen layout across multiple Apple TVs via iCloud, automatic switching between Light and Dark mode based on local time, new background multitasking modes, notification support, custom sound support, layered image improvements, right-to-left language support and other tidbits.
Next, go to Settings → Accounts on your Apple TV and sign in with the same Apple ID that you used to register for the public beta program into at least one of the account options (iCloud, iTunes and App Store or Game Center).
Now go to Settings → System → Software Update and turn on the option labeled Get Public Beta Updates, then follow the onscreen instructions to complete enrollment.
The Software Update mechanism on your Apple TV will put up a prompt when a new tvOS 11 public beta is available for download. To manually check for tvOS public beta updates, go to Settings → System → Software Updates → Update Software.
To submit feedback and report bugs to Apple, use the Feedback Assistant app on your iPhone, iPad or iPod touch with the iOS 11 public beta.
tvOS 11 will release for public consumption this fall.