https://wccftech.com/apple-releases-firmware-update-1a276d-for-airtag-how-to-download/

Apple released its AirTag item-tracking accessory in April of this year alongside the new M1-powered iPad Pro, iMac, and Apple TV 4K. The company has now released a new firmware update version 1A276D for AirTags a month after the launch of the item-tracking accessory.

The new firmware update is the first update for AirTag that comes with privacy features. Since the launch of the accessory, the AirTags have been received pretty well. However, there have been some privacy concerns with the accessory and Apple has addressed these issues by releasing new privacy features, The new feature alters the unknowing tracking beep sound from 'random' time to an 8 to 14-hour time frame.