Learn Editor: Update device-update-tls-download.md

Author: andrewbrownmsft

articles/iot-hub-device-update/device-update-tls-download.md

@@ -15,27 +15,12 @@ ms.subservice: device-update
 
 # How to understand and use the Transport Layer Security (TLS) download feature in Device Update for IoT Hub (Preview)
 
-When a device downloads an update from the Device Update service, the connection between the Device Update service and the device is HTTP-based. If a TLS connection (HTTPS) between the Device Update service and the device is preferred, this capability can be enabled upon request.
-
->[!NOTE]
->The TLS download feature is currently in [public preview](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).
-
-## How to enable the TLS download feature
-
-Obtain your Azure Subscription ID and your Device Update for IoT Hub *account*, *instance*, and *Azure region* information. Here's how to find that information:
-
-- Azure Subscription ID:
-  - See this article: [https://aka.ms/get-subscription-id](https://aka.ms/get-subscription-id)
-    
-- Device Update for IoT Hub information:
-  - Go to the [Azure portal](https://portal.azure.com/).
-  - Search for "Device Update for IoT Hubs" and select the **Device Update for IoT Hubs** option.
-  - Select your Device Update account. The *account name* is at the top of the screen.
-  - Select the **Overview** view from the left-hand navigation pane. Look for the "Location" field (such as "West US 2"). This field is your *Azure region*.
-  - Under the **Instance Management** heading in the left-hand navigation bar, select **Instances**. You'll see your *instance name*.
-  - Use [this link](https://nam.dcv.ms/dBgKOpqIL7) to submit the information. You'll receive a reply when your Device Update instance is enabled for the preview TLS download feature.
-    
-## Additional changes if using FreeRTOS
+When a device downloads an update from the Device Update service, the connection between the Device Update service and the device is HTTP-based. If a TLS connection (HTTPS) between the Device Update service and the device is preferred, this capability is currently under consideration.
+
+> [!NOTE]
+> The TLS download feature preview is currently closed. This page is being maintained for existing preview customers. The page will be updated if the preview is re-opened for additional customers.
+
+## Additional considerations if using FreeRTOS
 
 If you're using FreeRTOS, the [Azure IoT Middleware for FreeRTOS](https://github.com/Azure/azure-iot-middleware-freertos) and [FreeRTOS samples](https://github.com/Azure-Samples/iot-middleware-freertos-samples) available from Microsoft currently support HTTP URLs and need to be modified for TLS (HTTPS) URLs: