Azure Digital Twins control-plane preview API retirement (2021-06-31)

From 2 May 2023, Azure Digital Twins control plane API [2021-06-30-preview](https://github.com/Azure/azure-rest-api-specs/tree/main/specification/digitaltwins/resource-manager/Microsoft.DigitalTwins/preview/2021-06-30-preview) will be retired. Before that date, please migrate to the latest GA stable API version (2022-10-31) which additionally introduces user-assigned managed identities. ## Required action To avoid service disruption, please update to the [2022-10-31 stable API version](https://github.com/Azure/azure-rest-api-specs/tree/main/specification/digitaltwins/resource-manager/Microsoft.DigitalTwins/stable/2022-10-31) by 2 May 2023,which is backward compatible with the 2021-06-30-preview API version. We recommended that users of the affected associated SDKs of the 2021-06-30-preview API update to the latest version SDKs and follow additional migration guidance from the old to new Azure SDK. For more details, please reference [this guide](https://aka.ms/ADTPreviewAPIRetirement) on migrating from the retiring control plane preview API to the latest generally available stable API and their associated SDKs. ## Support options If you have a support plan and you need technical help, create a [support request](https://portal.azure.com/). On the portal page of your Azure Digital Twins instance, select “_New Support Request_” in the “_Support+troubleshooting_” tab: 1. For _Issue type_, select Technical. 2. For _Subscription_, select your subscription. 3. For _Service_, select My services, then select Azure Digital Twins. 4. Select the Azure resource that you are creating a support request for. 5. For _Summary_, type a description of your issue. 6. For _Problem type_, select Digital Twins APIs. 7. For _Problem subtype_, select My issue not listed here. * Azure Digital Twins * Retirements * [ Azure Digital Twins](https://azure.microsoft.com/en-gb/products/digital-twins/)