Update MSTest v1 to v3 migration guide (#50206)

* Update MSTest v1 to v3 migration guide

* Update docs/core/testing/unit-testing-mstest-migration-from-v1-to-v3.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Youssef1313

docs/core/testing/unit-testing-mstest-migration-from-v1-to-v3.md

@@ -3,7 +3,7 @@ title: MSTest migration to v3
 description: Learn about migrating from legacy MSTest (MSTest v1) to latest MSTest (MSTest v3).
 author: engyebrahim
 ms.author: enjieid
-ms.date: 11/06/2024
+ms.date: 11/28/2025
 ---
 
 # MSTest v3 migration guide
@@ -21,9 +21,9 @@ If your project relies on MSTest for unit testing and includes the above referen
 
 ### Why migrate to MSTest v3?
 
-Even if you’re satisfied with your current MSTest setup, upgrading to MSTest v3 unlocks substantial advantages that improve both the quality and future-readiness of your tests. Here’s why making the switch now can be a valuable step forward:
+Even if you're satisfied with your current MSTest setup, upgrading to MSTest v3 unlocks substantial advantages that improve both the quality and future-readiness of your tests. Here's why making the switch now can be a valuable step forward:
 
-- **Enhanced security**: MSTest v1 has known security vulnerabilities. With MSTest v3, we’ve implemented extensive security improvements to safeguard your testing environment.
+- **Enhanced security**: MSTest v1 has known security vulnerabilities. With MSTest v3, we've implemented extensive security improvements to safeguard your testing environment.
 - **Immediate Performance Boosts**: MSTest v3 significantly reduces test execution time and optimizes resource usage. This is particularly beneficial in CI/CD pipelines, where faster tests can shorten deployment cycles and cut infrastructure costs.
 
 - **Future-Proofing Your Tests**: MSTest v3 offers robust support for modern .NET versions, including .NET 8, and future iterations, along with cross-platform compatibility. This means your tests will be more adaptable and ready for upgrades, avoiding the technical debt of outdated testing frameworks.
@@ -36,7 +36,10 @@ Even if you’re satisfied with your current MSTest setup, upgrading to MSTest v
 
 - **Greater Flexibility and Extensibility**: MSTest v3 supports advanced testing scenarios, including dynamic data sources and in-assembly parallel execution. This flexibility enables more sophisticated testing approaches and speeds up test suites without complex configurations.
 
-By upgrading, you’re setting up your tests to be faster, more reliable, and adaptable to future .NET developments, positioning your project for long-term success and easier maintenance.
+By upgrading, you're setting up your tests to be faster, more reliable, and adaptable to future .NET developments, positioning your project for long-term success and easier maintenance.
+
+> [!TIP]
+> After migrating to MSTest v3, consider taking a further step and migrate to MSTest v4. For more information, see [Migrate from MSTest v3 to v4](./unit-testing-mstest-migration-v3-v4.md).
 
 ## Migration steps
 
@@ -54,7 +57,7 @@ In non-SDK style projects, these references are often added through Visual Studi
 4. Inside the **References** folder, **find and select** the MSTest DLL references, `Microsoft.VisualStudio.QualityTools.UnitTestFramework`
 5. **Right-click** the selected reference(s) and choose **Remove** from the context menu.
 
-    ![image](https://github.com/user-attachments/assets/7aff1afb-e26b-4450-bc2e-903a577e3df2)
+    ![Context menu of the assembly reference](https://github.com/user-attachments/assets/7aff1afb-e26b-4450-bc2e-903a577e3df2)
 
 6. **Save the project** to apply changes.
 
@@ -65,20 +68,20 @@ You can update your project to MSTest v3 in one of two ways:
 - **Update Packages**: If you have NuGet package references to the [MSTest.TestFramework](https://www.nuget.org/packages/MSTest.TestFramework) and the [MSTest.TestAdapter](https://www.nuget.org/packages/MSTest.TestAdapter/), update them using the NuGet Package Manager in Visual Studio or by running the following command in the NuGet Package Manager Console:
 
     ```shell
-    Update-Package MSTest.TestFramework -Version 3.6.2
-    Update-Package MSTest.TestAdapter -Version 3.6.2
+    Update-Package MSTest.TestFramework -Version 3.11.1
+    Update-Package MSTest.TestAdapter -Version 3.11.1
     ```
 
 - **Or Install MSTest Package**: Install the latest [MSTest](https://www.nuget.org/packages/MSTest) package using the NuGet Package Manager in Visual Studio or by running the following command in the NuGet Package Manager Console:
 
     ```shell
-    Install-Package MSTest -Version 3.6.2
+    Install-Package MSTest -Version 3.11.1
     ```
 
 - **Or update the project file directly** (for SDK-style projects): Update your `.csproj` file to specify the MSTest SDK version.
 
     ```xml
-    <Project Sdk="MSTest.Sdk/3.6.2">
+    <Project Sdk="MSTest.Sdk/3.11.1">
       <PropertyGroup>
         <TargetFramework>net8.0</TargetFramework>
       </PropertyGroup>
@@ -140,7 +143,7 @@ The DataRowAttribute constructors in MSTest v3 have been simplified to enforce t
 public void MyTestMethod(int number, string text) { ... }
 ```
 
-In cases where types don’t match exactly, MSTest v3 will now raise an error rather than attempting a conversion.
+In cases where types don't match exactly, MSTest v3 will now raise an error rather than attempting a conversion.
 
 ### Timeout settings