CENTER, OTA MASTER, SYSTEM, DISTRIBUTION METHOD, NON-TRANSITORY STORAGE MEDIUM, AND VEHICLE

A center includes: one or more processors configured to transmit, to an over-the-air (OTA) master, update data of software of a plurality of electronic control units mounted on a vehicle and information on an update sequence defining a procedure of processing for updating the software, the OTA master including one or more second processors configured to control an update of the software.