Update local dev accounts doc

Author: scottaddie

docs/azure/sdk/authentication/local-development-dev-accounts.md

@@ -2,7 +2,7 @@
 title: Authenticate .NET apps to Azure using developer accounts
 description: Learn how to authenticate your application to Azure services when using the Azure SDK for .NET during local development using developer accounts.
 ms.topic: how-to
-ms.date: 03/14/2025
+ms.date: 11/25/2025
 ms.custom:
   - devx-track-dotnet
   - engagement-fy23
@@ -122,4 +122,35 @@ Connect-AzAccount -UseDeviceAuthentication
 
 ---
 
-[!INCLUDE [Implement DefaultAzureCredential](<../includes/implement-defaultazurecredential.md>)]
+## Authenticate to Azure services from your app
+
+The [Azure Identity library](/dotnet/api/azure.identity?view=azure-dotnet&preserve-view=true) provides *credentials*&mdash;implementations of <xref:Azure.Core.TokenCredential> that support different scenarios and Microsoft Entra authentication flows. The steps ahead demonstrate how to use <xref:Azure.Identity.DefaultAzureCredential> or a specific development tool credential when working with user accounts locally.
+
+### Implement the code
+
+Complete the following steps:
+
+1. Install the [Azure.Identity](https://www.nuget.org/packages/Azure.Identity) and the [Microsoft.Extensions.Azure](https://www.nuget.org/packages/Microsoft.Extensions.Azure) packages in your project:
+
+    ```dotnetcli
+    dotnet add package Azure.Identity
+    dotnet add package Microsoft.Extensions.Azure
+    ```
+
+1. In `Program.cs`, complete the following steps:
+    1. Add `using` directives for the `Azure.Identity` and `Microsoft.Extensions.Azure` namespaces.
+    1. Register the Azure service client using the corresponding `Add`-prefixed extension method.
+
+       Azure services are accessed using specialized client classes from the Azure SDK client libraries. Register these client types so you can access them through dependency injection across your app.
+
+    1. Pass a `TokenCredential` instance to the `UseCredential` method. A couple common `TokenCredential` examples include:
+        - A `DefaultAzureCredential` instance optimized for local development. This example sets environment variable `AZURE_TOKEN_CREDENTIALS` to `dev`. For more information, see [Exclude a credential type category](credential-chains.md#exclude-a-credential-type-category).
+
+            :::code language="csharp" source="../snippets/authentication/local-dev-account/Program.cs" id="snippet_DefaultAzureCredentialDev":::
+
+        - An instance of a credential corresponding to a specific development tool, such as `VisualStudioCredential`.
+
+            :::code language="csharp" source="../snippets/authentication/local-dev-account/Program.cs" id="snippet_VisualStudioCredential":::
+
+        > [!TIP]
+        > If your team uses multiple development tools to authenticate to Azure, use `DefaultAzureCredential` instead of a specific development tool credential.

docs/azure/sdk/includes/implement-defaultazurecredential.md

@@ -7,9 +7,9 @@
     <PackageVersion Include="Azure.AI.OpenAI" Version="2.1.0" />
     <PackageVersion Include="Microsoft.Extensions.AI" Version="9.3.0-preview.1.25114.11" />
     <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="9.3.0-preview.1.25114.11" />
-    <PackageVersion Include="Microsoft.Extensions.Azure" Version="1.13.0" />
-    <PackageVersion Include="Azure.Identity" Version="1.17.0" />
-    <PackageVersion Include="Azure.Identity.Broker" Version="1.3.0" />
+    <PackageVersion Include="Microsoft.Extensions.Azure" Version="1.13.1" />
+    <PackageVersion Include="Azure.Identity" Version="1.17.1" />
+    <PackageVersion Include="Azure.Identity.Broker" Version="1.3.1" />
     <PackageVersion Include="Azure.Security.KeyVault.Secrets" Version="4.8.0" />
     <PackageVersion Include="Azure.Storage.Blobs" Version="12.26.0" />
     <!-- ASP.NET Core packages -->

docs/azure/sdk/snippets/authentication/Directory.Packages.props

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

docs/azure/sdk/snippets/authentication/local-dev-account/UserAssignedIdentityClientId.csproj renamed to docs/azure/sdk/snippets/authentication/local-dev-account/LocalDevAccount.csproj

@@ -1,11 +1,10 @@
-using Azure.Identity;
-using Microsoft.Extensions.Azure;
+using Microsoft.Extensions.Azure;
 using Azure.Storage.Blobs;
-using Azure.Core;
+using Azure.Identity;
 
 var builder = WebApplication.CreateBuilder(args);
 
-registerUsingServicePrincipal(builder);
+registerUsingUserPrincipal(builder);
 
 var app = builder.Build();
 
@@ -43,22 +42,30 @@
 
 app.Run();
 
-void registerUsingServicePrincipal(WebApplicationBuilder builder)
+void registerUsingUserPrincipal(WebApplicationBuilder builder)
 {
-    #region snippet_DefaultAzureCredential_UseCredential
+    #region snippet_VisualStudioCredential
     builder.Services.AddAzureClients(clientBuilder =>
     {
         clientBuilder.AddBlobServiceClient(
             new Uri("https://<account-name>.blob.core.windows.net"));
+
+        VisualStudioCredential credential = new();
+        clientBuilder.UseCredential(credential);
     });
-    #endregion snippet_DefaultAzureCredential_UseCredential
+    #endregion snippet_VisualStudioCredential
 
-    #region snippet_DefaultAzureCredential
-    builder.Services.AddSingleton<BlobServiceClient>(_ =>
-        new BlobServiceClient(
-            new Uri("https://<account-name>.blob.core.windows.net"),
-            new DefaultAzureCredential()));
-    #endregion snippet_DefaultAzureCredential
+    #region snippet_DefaultAzureCredentialDev
+    builder.Services.AddAzureClients(clientBuilder =>
+    {
+        clientBuilder.AddBlobServiceClient(
+            new Uri("https://<account-name>.blob.core.windows.net"));
+
+        DefaultAzureCredential credential = new(
+            DefaultAzureCredential.DefaultEnvironmentVariableName);
+        clientBuilder.UseCredential(credential);
+    });
+    #endregion snippet_DefaultAzureCredentialDev
 }
 
 internal record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)