MacRumors published a story that Apple has released the third beta of tvOS 13.4.5 to registered developers.
Apple Seeds Third Beta of tvOS 13.4.5 Update to Developers
Apple today seeded the third beta of an upcoming tvOS 13.4.5 update to developers, two weeks after seeding the second beta and a month after releasing tvOS 13.4. Designed for the fourth and fifth-generation Apple TV models, the tvOS 13.4.5 developer beta can be downloaded onto the Apple TV via a profile that's installed using Xcode. tvOS updates are typically minor in scale, focusing on under-the-hood bug fixes and improvements rather than major outward-facing changes.
Apple Seeds Third Beta of tvOS 13.4.5 Update to Developers
