ONBOARD DEVICE, INFORMATION GENERATING METHOD, NON-TRANSITORY STORAGE MEDIUM, AND VEHICLE

An onboard device configured to communicate with one or more other onboard devices in an onboard network, and configured to execute processing for updating of software of an own device while communicating with the other onboard devices, the onboard device includes an electronic control unit. The electronic control unit is configured to generate, when not performing the processing, information to transmit to the other onboard devices by executing the software, as first information, and generate, when performing the processing, information to transmit to the other onboard devices without executing the software, as second information.