Apple has moved on to its third round of developer betas, but it has started quietly with a trial of tvOS 18.3’s third beta, along with HomePod OS 18.3.
Apple TV 4K
The third beta for tvOS 18.3 follows after the second, which surfaced on January 7. The first round was issued on December 16.
It’s also accompanied by the third developer beta of HomePod OS 18.3, which is used by the HomePod and HomePod mini.