Apple Inc.
Revision locking

Abstract:

A companion device can obtain a new version of a software program (e.g., in portions) from a server at the request of an accessory device, and provide the new version of the software to the accessory device. The software update of the accessory device can be initiated at the companion device. The companion device can communicate with the accessory device before and after the update to determine whether the update was successful. A notification about the update can then be provided to a user.