https://wccftech.com/apple-airtag-tile-like-accessory-confirmed-by-ios-13-2-will-feature-swappable-batteries/

Apple's Tile-like tracker accessory will be called AirTag, as confirmed by the latest software release for iPhones and iPads.

There was no Apple Event this week but Apple surprised everyone with the announcement of the AirPods Pro. Along with that, we also saw the arrival of iOS 13.2, iPadOS 13.2, tvOS 13.2 and iOS 13.2 for HomePod. Even the software updates were packed with certain surprises, as 9to5Mac was able to confirm from the filesystem of iOS 13.2 that Apple's Tile-like accessory has a proper name, and it's called AirTag.