Generally available: Device update for IoT Hub

Device Update has the following new functionality: * Automatic group provisioning will automatically create groups of devices based on their compatibility properties and device tags, so you can easily deploy updates to your devices without the additional overhead. * Improved troubleshooting features such as agent check and device sync help you troubleshoot and repair your devices with ease. * Automatic rollback enables you to define a fallback version for your managed devices if they meet the rollback criteria that can be easily set from the cloud. * Azure CLI Support enables you to create and manage Device Update resources, groups and deployments using command line functions. * Support for OS platforms such as Ubuntu 18.04 and Ubuntu 20.04\. * Support in all Azure Hero regions. [Read the blog for more details.](https://aka.ms/DeviceUpdateGA) * Azure IoT Hub * Features * Services * [ Azure IoT Hub](https://azure.microsoft.com/en-gb/products/iot-hub/)