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![Announcing .NET 9](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2024/11/dotnet9ga.jpg)
Announcing .NET 9
![.NET Team](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2023/01/dotnet-logo-96x96.png)
Announcing the release of .NET 9, the most productive, modern, secure, intelligent, and performant release of .NET yet. With updates across ASP.NET Core, C#, .N...
Latest posts
![Microsoft.Testing.Platform: Now Supported by All Major .NET Test Frameworks](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/02/mstestplatformeverywhere.jpg)
Microsoft.Testing.Platform: Now Supported by All Major .NET Test Frameworks
![Amaury Levé](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2024/01/profile-pic-10-96x96.png)
All major .NET testing frameworks are now supporting Microsoft.Testing.Platform. Whether you are using Expecto, MSTest, NUnit, TUnit, or xUnit.net, you can now leverage the new testing platform to run your tests.
![.NET 9 Networking Improvements](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/02/networkingdotnet9.jpg)
.NET 9 Networking Improvements
![Máňa](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2020/12/IMG-20180331-WA0000-e1607970876397-130x150.jpg)
![Natalia Kondratyeva](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2021/12/MicrosoftTeams-image-7-96x96.jpg)
Introducing new networking features in .NET 9 including HTTP space, HttpClientFactory, security and more!
![ASP.NET Core on .NET Framework servicing release advisory: ASP.NET Core 2.3](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/02/servicing-release-advisory-aspnetcore-23.jpg)
ASP.NET Core on .NET Framework servicing release advisory: ASP.NET Core 2.3
ASP.NET Core 2.1 has been reshipped as ASP.NET Core 2.3 to help users on the unsupported ASP.NET Core 2.2 move to a supported version.
![Build Intelligent Apps with .NET and DeepSeek R1 Today!](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/01/deepseek-meai.jpg)
Build Intelligent Apps with .NET and DeepSeek R1 Today!
Learn how to easily integrate DeepSeek R1 with .NET applications using the Microsoft.Extensions.AI library.
![WinForms: Analyze This (Me in Visual Basic)](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/01/winforms-analyzers.jpg)
WinForms: Analyze This (Me in Visual Basic)
![Klaus Loeffelmann](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2022/01/klloeffe_HeadShot-96x96.jpg)
Your WinForms code might have issues—maybe an Async call picked the wrong overload, or it’s leaking data into resource files. Time to call in a code-shrink! So, WinForms, Analyze This!
![Meet the .NET Team at NDC London 2025](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/01/dotnet-ndc-london-2025.jpg)
Meet the .NET Team at NDC London 2025
![Mehul Harry](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2022/09/MHProfileMS2-96x96.jpg)
Meet the .NET team at NDC London 2025 to explore the latest in .NET 9, Azure, and AI-powered development through keynotes, sessions, and 1:1 meetups.
![.NET and .NET Framework January 2025 servicing releases updates](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/01/jan2025updates.jpg)
.NET and .NET Framework January 2025 servicing releases updates
![Tara Overfield](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2018/10/WP_20170704_14_34_24_Pro-150x150.jpg)
![Rahul Bhandari (MSFT)](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2021/11/me-96x96.jpg)
Welcome to our combined .NET servicing updates for January 2025. Let's get into the latest release of .NET & .NET Framework, here is a quick overview of what's new in these releases: Security improvements This month you will find several CVEs that have been fixed this month: .NET January 2025 Updates Below you will find a detailed list of everything from the .NET release for January 2025 including .NET 9.0.1 and .NET 8.0.12: .NET Improvements Share feedback about this release in the Release feedback issue. ....
![.NET Aspire Quick Tip – Managing Container & Data Lifetime](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2025/01/aspire-container-lifetime.jpg)
.NET Aspire Quick Tip – Managing Container & Data Lifetime
![James Montemagno](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2021/11/VwJrc4QB_400x400-96x96.jpg)
.NET Aspire 9 adds new control over the lifetime of containers on your local developer environment. Let's look at how to manage them with the new APIs!
![Top .NET Videos & Live Streams of 2024](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2024/12/topvideos2024.jpg)
Top .NET Videos & Live Streams of 2024
![James Montemagno](https://devblogs.microsoft.com/dotnet/wp-content/uploads/sites/10/2021/11/VwJrc4QB_400x400-96x96.jpg)
Let's take a look back at the amazing .NET videos, events, and live streams from 2024!