Apple today released a new 7.2.1 software update for the third-generation Apple TV. It is not clear what is new in the update, as Apple has not provided release notes, but it includes several security improvements.

The update is available for all versions of the third-generation Apple TV. It can be installed through the software update mechanism in Settings, or delivered automatically for customers who have automatic updates turned on.

The third-generation Apple TV has been available since 2012 and continues to be sold alongside the fourth-generation Apple TV. The older device does not run tvOS and does not include features like Siri support and access to the App Store, but it offers content through dozens of channels like Netflix, Hulu Plus, and more.