Merge pull request #197434 from rwike77/adaldep3

adal deprecation

Author: PRMerger7

articles/iot-hub/iot-hub-rm-rest.md

@@ -38,6 +38,8 @@ To complete this tutorial, you need the following:
 3. In NuGet Package Manager, check **Include prerelease**, and on the **Browse** page search for **Microsoft.Azure.Management.ResourceManager**. Select the package, click **Install**, in **Review Changes** click **OK**, then click **I Accept** to accept the licenses.
 
 4. In NuGet Package Manager, search for **Microsoft.IdentityModel.Clients.ActiveDirectory**.  Click **Install**, in **Review Changes** click **OK**, then click **I Accept** to accept the license.
+    > [!IMPORTANT]
+    > The [Microsoft.IdentityModel.Clients.ActiveDirectory](https://www.nuget.org/packages/Microsoft.IdentityModel.Clients.ActiveDirectory) NuGet package and Azure AD Authentication Library (ADAL) have been deprecated. No new features have been added since June 30, 2020.   We strongly encourage you to upgrade, see the [migration guide](/azure/active-directory/develop/msal-migration) for more details.
 
 5. In Program.cs, replace the existing **using** statements with the following code:
 

articles/iot-hub/iot-hub-rm-template.md

@@ -41,6 +41,8 @@ To complete this tutorial, you need the following:
 3. In NuGet Package Manager, check **Include prerelease**, and on the **Browse** page search for **Microsoft.Azure.Management.ResourceManager**. Select the package, click **Install**, in **Review Changes** click **OK**, then click **I Accept** to accept the licenses.
 
 4. In NuGet Package Manager, search for **Microsoft.IdentityModel.Clients.ActiveDirectory**.  Click **Install**, in **Review Changes** click **OK**, then click **I Accept** to accept the license.
+    > [!IMPORTANT]
+    > The [Microsoft.IdentityModel.Clients.ActiveDirectory](https://www.nuget.org/packages/Microsoft.IdentityModel.Clients.ActiveDirectory) NuGet package and Azure AD Authentication Library (ADAL) have been deprecated. No new features have been added since June 30, 2020.   We strongly encourage you to upgrade, see the [migration guide](/azure/active-directory/develop/msal-migration) for more details.
 
 5. In Program.cs, replace the existing **using** statements with the following code: