CENTER, DISTRIBUTION CONTROL METHOD, AND NON-TRANSITORY STORAGE MEDIUM

A center is configured to distribute, to a vehicle, update data of software of a control device mounted on the vehicle. The center includes one or more processors configured to make a determination on whether to distribute, as the update data, update software or difference data between current software and the update software based on first information on the software of the control device mounted on the vehicle. The center then transmits the determined update data to the vehicle.