MacRumors published a story that Apple has released the fourth beta of tvOS 17.6.

Apple Seeds Fourth Beta of tvOS 17.6 to Developers [Update: Public Beta Available]

Apple today seeded the fourth beta of an upcoming tvOS 17.6 to developers for testing purposes, with the update coming a week after the release of the third beta.

Registered developers are able to download the tvOS 17.6 update by opting in to the beta through the Settings app on the Apple TV. A registered developer account is required.

Apple Seeds Fourth Beta of tvOS 17.6 to Developers [Update: Public Beta Available]