Apple today released tvOS 27.2.1, an update to the tvOS 27 operating system that launched in September. tvOS 27.2.1 comes nearly three weeks after Apple released tvOS 27.2. tvOS 27.2.1 brings Siri AI support to the 2nd- and 3rd-generation Apple TV 4K models, but it is available for all Apple TV 4K models that support tvOS 27. Apple announced Siri AI for the Apple TV when debuting the 4th-generation Apple TV 4K.