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  • Introducing dotnetup: A toolchain manager for .NET
    by Chet Husk on October 15, 2026 at 4:50 pm

    Learn how the new dotnetup tool helps macOS and Linux developers install, manage, and update user-local .NET SDKs and runtimes. The post Introducing dotnetup: A toolchain manager for .NET appeared first on .NET Blog.

  • Announcing .NET 11 Release Candidate 2
    by .NET Team on October 13, 2026 at 7:40 pm

    .NET 11 Release Candidate 2 is available with improvements across libraries, runtime, SDK, MSBuild, NuGet, F#, ASP.NET Core, .NET MAUI, and Windows Forms. The post Announcing .NET 11 Release Candidate 2 appeared first on .NET Blog.

  • .NET and .NET Framework October 2026 servicing releases updates
    by Rahul Bhandari (MSFT), Tara Overfield on October 12, 2026 at 8:00 pm

    A recap of the latest servicing updates for .NET and .NET Framework for October 2026. The post .NET and .NET Framework October 2026 servicing releases updates appeared first on .NET Blog.

  • Durable Task in the Real World: What Problems Does It Actually Solve?
    by Tamir Dresher on October 12, 2026 at 4:30 pm

    Five practical examples of when durable execution makes sense, when it does not, and what it means for AI agents. The post Durable Task in the Real World: What Problems Does It Actually Solve? appeared first on .NET Blog.

  • A faster, lighter C# Dev Kit
    by Drew Noakes on October 6, 2026 at 5:05 pm

    C# Dev Kit has been rebuilt to open solutions in about a second and run on a fraction of the memory, and this post walks through what changed for you. The post A faster, lighter C# Dev Kit appeared first on .NET Blog.

  • UWP and WinUI 3 apps: UI testing with MSTest
    by Amaury Levé on October 5, 2026 at 5:05 pm

    Learn how to test UWP and WinUI 3 apps with MSTest and Microsoft.Testing.Platform across packaged, unpackaged, and AppContainer hosts. The post UWP and WinUI 3 apps: UI testing with MSTest appeared first on .NET Blog.

  • Build Agentic UI with the new Blazor AI components
    by Daniel Roth on September 28, 2026 at 5:05 pm

    Build Agentic UI with the new Blazor AI components for streamed content, tools, approvals, shared state, and generative experiences. The post Build Agentic UI with the new Blazor AI components appeared first on .NET Blog.

  • AG-UI Protocol now has a first-class .NET SDK
    by Daniel Roth on September 25, 2026 at 5:05 pm

    The new AG-UI .NET SDK enables .NET services to expose and consume interoperable agent endpoints using Microsoft.Extensions.AI. The post AG-UI Protocol now has a first-class .NET SDK appeared first on .NET Blog.

  • Microsoft is updating its author-signing certificate starting September 23, 2026
    by The NuGet Team on September 23, 2026 at 8:00 pm

    Starting September 23, 2026, Microsoft is updating the author-signing certificate used for NuGet packages. Customers using trusted signer policies or certificate fingerprint verification should add the new certificate as soon as possible. The post Microsoft is updating its author-signing certificate starting September 23, 2026 appeared first on .NET Blog.

  • Creating a memory dump in C#
    by Aaron Powell on September 22, 2026 at 5:05 pm

    Learn how to create a memory dump in C# to capture the state of your application for debugging purposes. The post Creating a memory dump in C# appeared first on .NET Blog.

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