Apple today released a new update for tvOS 11, the operating system designed to run on fourth and fifth-generation Apple TV models. tvOS 11.2.5 comes more than a month after the release of tvOS 11.2.1, an update that introduced a fix for a HomeKit bug.
tvOS 11.2.5 can be downloaded over the air through the Settings app on the Apple TV by going to System -> Software Update. Apple TV owners who have automatic software updates turned on will be upgraded to the tvOS 11.2.5 automatically.
As a minor 11.x.x update tvOS 11.2.5 focuses on performance improvements and bug fixes to address issues that were discovered following the release of tvOS 11.2 and tvOS 11.2.1.
During the beta testing process, no major outward-facing changes were discovered and Apple does not typically provide detailed release notes for tvOS 11.2.5, but security fixes will be listed in Apple's Security Updates support document.