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Announcing .NET 10 Release Candidate 1

.NET 10 Release Candidate 1 is available with improvements across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more!
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Microsoft C++ Team at CppCon 2025

  It's that time of year again! We are excited to see you all at CppCon this year, where we'll once again be delivering a variety of presentations, from the latest advancements in debugging technology to extensibility frameworks for AI agents. See the end of this post for a...
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AI-powered hover summaries with Pylance
Sep 15, 2025
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Python in Visual Studio Code - September 2025 Release

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Luciana Abud
The September 2025 release includes pipenv support in the Python Environment Extension, a new experimental hover feature with GitHub Copilot and Pylance, and more!
Microsoft for Python Developers Blog
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Sep 15, 2025
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Application Insights Code Optimizations for .NET Apps

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Chuck Weininger
Learn how Application Insights Code Optimizations helps .NET developers identify performance bottlenecks and get AI-powered recommendations through GitHub Copilot integration.
.NET Blog
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Sep 15, 2025
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Why is the name of the Microsoft Wireless Notebook Presenter Mouse 8000 hard-coded into the Bluetooth drivers?

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Raymond Chen
Is it some sort of favoritism?
The Old New Thing
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Sep 12, 2025
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How can I convert a third party in-process server so it runs in the COM surrogate?

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Raymond Chen
You can put your own object in the surrogate first.
The Old New Thing
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Sep 11, 2025
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Microsoft C++ Team at CppCon 2025

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Michael Price
  It's that time of year again! We are excited to see you all at CppCon this year, where we'll once again be delivering a variety of presentations, from the latest advancements in debugging technology to extensibility frameworks for AI agents. See the end of this post for a...
C++ Team Blog
August 2025 (version 1.104)
Sep 11, 2025
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August 2025 (version 1.104)

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Visual Studio Code Team
Learn what is new in the Visual Studio Code August 2025 Release (1.104) Read the full article
VS Code Blog
DirectX 12 Ultimate
Sep 11, 2025
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Shader Model 6.9 and The Future of Cooperative Vector

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Serena Tang
Direct3D Cooperative Vector is Evolving DirectX continues to evolve to support the growing demands of AI and machine learning workloads. As part of this effort, we plan to introduce an expanded suite of linear algebra capabilities in a future Shader Model release, unlocking even more...
DirectX Developer Blog
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Sep 11, 2025
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Democratizing Performance: The Copilot Profiler Agent in Action on Real Code

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Harshada Hole
We’re excited to announce the Copilot Profiler Agent available in Visual Studio 2026 Insiders, it's an AI-powered performance assistant built directly into Visual Studio. Forget staring at endless call trees or walls of mysterious numbers that leave you asking, “where do I even...
Visual Studio Blog
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Sep 11, 2025
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Why can't std::apply figure out which overload I intend to use? Only one of then will work!

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Raymond Chen
The overload resolution happens before the compiler knows what it's going to be used for.
The Old New Thing