Apple today seeded the third beta of an upcoming tvOS 11.2.5 update to developers for testing purposes, two weeks after seeding the second beta and three weeks after the release of tvOS 11.2.1, an update that introduced a fix for a HomeKit vulnerability.
Designed for the fourth and fifth-generation Apple TV models, the tvOS 11.2.5 developer beta can be downloaded onto the Apple TV via a profile that's installed using Xcode.
We don't yet know what features or changes might be included in the tvOS 11.2.5 update, but it likely focuses primarily on bug fixes and performance improvements rather than major outward-facing changes.
There were no outward-facing changes discovered in the first two developer betas, but we'll update this post should new features be found in the third beta.
Update: Apple has also made a public beta available for public beta testers.