Document recent dotnet test SDK changes

docs/core/testing/microsoft-testing-platform-run-and-debug.md

@@ -3,7 +3,7 @@ title: Run and debug tests with Microsoft.Testing.Platform (MTP)
 description: Learn how to run and debug MTP test projects from CLI, Visual Studio, Visual Studio Code, and CI pipelines.
 author: Evangelink
 ms.author: amauryleve
-ms.date: 06/16/2026
+ms.date: 09/12/2026
 ai-usage: ai-assisted
 ---
 
@@ -73,12 +73,14 @@ For more information on `dotnet exec`, see [dotnet exec](../tools/dotnet.md#opti
 
 ### Use `dotnet test`
 
-MTP offers a compatibility layer with `vstest.console.exe` and [`dotnet test`](../tools/dotnet-test.md) ensuring you can run your tests as before while enabling new execution scenario.
+Starting with the .NET 10 SDK, [`dotnet test`](../tools/dotnet-test-mtp.md) has a dedicated MTP mode. Select MTP through `global.json`, or use the `DOTNET_TEST_RUNNER` environment variable with .NET 11 Preview 6 or later. The dedicated mode supports projects, solutions, built test modules, and additional input types in newer SDK versions.
 
 ```dotnetcli
-dotnet test Contoso.MyTests.dll
+dotnet test --test-modules Contoso.MyTests.dll
 ```
 
+For runner selection and migration from the VSTest-compatible mode, see [Testing with `dotnet test`](./unit-testing-with-dotnet-test.md).
+
 ## [Visual Studio](#tab/visual-studio)
 
 The MTP tests can be run (and debugged) in Visual Studio, they integrate with Test Explorer, and can also be run directly as startup project.
@@ -189,3 +191,5 @@ To run a test, navigate to **Test Explorer**, select the test (or tests) to run.
 - [MTP overview](./microsoft-testing-platform-intro.md)
 - [MTP CLI options reference](./microsoft-testing-platform-cli-options.md)
 - [Testing with `dotnet test`](./unit-testing-with-dotnet-test.md)
+- [`dotnet test` with MTP](../tools/dotnet-test-mtp.md)
+- [Run tests with MSTest](./unit-testing-mstest-running-tests.md)

docs/core/testing/unit-testing-mstest-running-tests.md

@@ -3,7 +3,7 @@ title: Run tests with MSTest
 description: Learn about how to run MSTest tests using VSTest or Microsoft.Testing.Platform (MTP).
 author: Evangelink
 ms.author: amauryleve
-ms.date: 08/06/2026
+ms.date: 09/12/2026
 ai-usage: ai-assisted
 ---
 
@@ -22,6 +22,8 @@ MSTest supports running tests with both VSTest and [Microsoft.Testing.Platform (
 
 The MSTest runner is open source and builds on the [MTP](./microsoft-testing-platform-intro.md) library. You can find `Microsoft.Testing.Platform` code in the [microsoft/testfx](https://github.com/microsoft/testfx/tree/main/src/Platform/Microsoft.Testing.Platform) GitHub repository. The MSTest runner comes bundled with `MSTest in 3.2.0` or newer.
 
+With the .NET 10 SDK and later versions, select the dedicated MTP mode of `dotnet test` in `global.json`. Starting with .NET 11 Preview 6, you can override that selection for the current process with the `DOTNET_TEST_RUNNER` environment variable. For the supported inputs, SDK-version requirements, and MTP-specific options, see [`dotnet test` with MTP](../tools/dotnet-test-mtp.md).
+
 ## Enable MTP in an MSTest project
 
 Use [MSTest SDK](./unit-testing-mstest-sdk.md) to greatly simplify your project configuration, version management, and alignment of MTP and its extensions.
@@ -152,6 +154,9 @@ Contoso.MyTests.exe --filter "FullyQualifiedName~UnitTest1|TestCategory=Category
 ## See also
 
 - [Testing with `dotnet test`](unit-testing-with-dotnet-test.md)
+- [`dotnet test` with MTP](../tools/dotnet-test-mtp.md)
+- [`dotnet test` with VSTest](../tools/dotnet-test-vstest.md)
+- [MTP CLI options reference](microsoft-testing-platform-cli-options.md)
 - [Test WinUI 3 apps with MSTest and MTP](unit-testing-mstest-winui.md)
 - [Filter tests](selective-unit-tests.md)
 - [Order unit tests](order-unit-tests.md)

docs/core/testing/unit-testing-with-dotnet-test.md

@@ -3,7 +3,7 @@ title: Testing with 'dotnet test'
 description: Learn more about how 'dotnet test' works and its support for VSTest and Microsoft.Testing.Platform (MTP)
 author: Youssef1313
 ms.author: ygerges
-ms.date: 08/31/2026
+ms.date: 09/12/2026
 ai-usage: ai-assisted
 ---
 
@@ -129,6 +129,8 @@ To enable this mode, add the following configuration to your `global.json` file:
 }
 ```
 
+Starting with .NET 11 Preview 6, you can instead set the `DOTNET_TEST_RUNNER` environment variable to `Microsoft.Testing.Platform`. A recognized environment variable value overrides `global.json` for the current process. For accepted values and precedence, see [Choose a test runner](../tools/dotnet-test.md#choose-a-test-runner).
+
 > [!IMPORTANT]
 > The `dotnet test` experience for MTP is only supported in `Microsoft.Testing.Platform` version 1.7 and later.