MacRumors reports that Apple has released the sixth beta of tvOS 13.4 to registered developers.
Apple Seeds Sixth Beta of Upcoming tvOS 13.4 Update to Developers [Update: Public Beta Available]
Apple today seeded the sixth beta of an upcoming tvOS 13.4 update to developers for testing purposes, one week after seeding the fifth beta and over a month after the release of tvOS 13.3.1.
Apple Seeds Sixth Beta of Upcoming tvOS 13.4 Update to Developers [Update: Public Beta Available]