I am using Azure IoT Update, the MS Tutorial Simulator, and I can successfully send updates to my Linux device.

I am now expanding on learning the update process by adding additional compatibility information to both the manifest file and the du-config.json file.

When I add compatibility key/value pair into both the manifest and du-config file, the update isn’t recognised as valid against the group with my device in. When I remove the compatibility information from the du-config file, my group does match a different manifest without the additional compatibility information.
(I have two updates pending, one with the additional compatibility information in, one without)

How do I utilise additional compatibility information in Azure IoT Update?

Manifest File

Notice the “a”: “a”

{
    "updateId": {
        "provider": "Contoso",
        "name": "Yocto-Image",
        "version": "1.7"
    },
    "isDeployable": true,
    "compatibility": [
        {
            "deviceModel": "Video",
            "deviceManufacturer": "contoso",
            "a": "a"
        }
    ],
    "instructions": {
        "steps": [
            {
                "type": "inline",
                "description": "Update the device image to version 0.8.0003.0",
                "handler": "microsoft/swupdate:1",
                "files": [
                    "adu-update-image-raspberrypi3.swu"
                ],
                "handlerProperties": {
                    "installedCriteria": "0.8.0003.0"
                }
            }
        ]
    },
    "files": [
        {
            "filename": "adu-update-image-raspberrypi3.swu",
            "sizeInBytes": 112739328,
            "hashes": {
                "sha256": "wPdNKUSmWTZkR6Pum9oR/EIzdn5AvON4dsXME+/gHVw="
            }
        }
    ],
    "createdDateTime": "2022-02-02T06:56:51.2002204Z",
    "manifestVersion": "4.0"
}

du config

{
    "schemaVersion": "1.1",
    "aduShellTrustedUsers": [
        "adu",
        "do"
    ],
    "iotHubProtocol": "mqtt",
    "compatPropertyNames": "manufacturer,model,a",
    "manufacturer": "Contoso",
    "model": "Video",
    "agents": [
        {
            "name": "aduagent",
            "runas": "adu",
            "connectionSource": {
                "connectionType": "string",
                "connectionData": "HostName=xxx.azure-devices.net;DeviceId=xxx;SharedAccessKey=xxx="
            },
            "manufacturer": "Contoso",
            "model": "Video",
            "additionalDeviceProperties": {
                "a": "a"
            }
        }
    ]
}

Device in Group showing the correct compatibility attributes

Update showing correct compatibility attributes