Apple today seeded the second beta of an upcoming tvOS 11.2.5 update to its public beta testing group, one week seeding the first public beta and one day after providing the beta to developers. The second tvOS 11.2.5 public beta comes just a week after the release of tvOS 11.2.1, an update that fixed a HomeKit vulnerability.
The tvOS 11.2.5 public beta can be obtained by going to the Settings app on the Apple TV and navigating to the Software Updates section under "System." "Get Public Beta Updates" will need to be toggled on, and once it is, the Apple TV will download the beta software.
It's not yet clear what features and changes might be included in the tvOS 11.2.5 update as no outward-facing changes were discovered in the first two developer betas.
It's likely the update features security improvements and fixes for bugs that have been discovered since the release of tvOS 11.2 and tvOS 11.2.1.