Apple today seeded the second release candidate version of an upcoming tvOS 17.2 to developers for testing purposes, with the update coming several days after the first tvOS 17.2 RC.
Registered developers are able to download the tvOS 17.2 update by opting in to the beta through the Settings app on the Apple TV. A registered developer account is required.
tvOS updates are often minor in scale compared to other operating system updates, focusing primarily on bug fixes and smaller improvements rather than notable outward-facing changes, but tvOS 17.2 introduces an overhauled Apple TV app.
