Showing archive results for September 2026

Build Agentic UI with the new Blazor AI components for streamed content, tools, approvals, shared state, and generative experiences.

The new AG-UI .NET SDK enables .NET services to expose and consume interoperable agent endpoints using Microsoft.Extensions.AI.

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.

Learn how to create a memory dump in C# to capture the state of your application for debugging purposes.

I am building a complete C# agent live, from a single call around an IChatClient to a production-ready, observable, governed agent, using the Microsoft Agent Framework harness in a 4-part Microsoft Reactor series.

Take a tour through hundreds of performance improvements in .NET 11.

Share how your team uses .NET to solve real problems and help us bring more community stories to .NET Conf 2026 and other .NET channels.

Learn how C# unions and closed hierarchies work with System.Text.Json across ASP.NET Core Minimal APIs, MVC, SignalR, Blazor, and OpenAPI.

.NET 11 Release Candidate 1 is available with improvements across libraries, runtime, SDK, MSBuild, NuGet, C#, F#, ASP.NET Core, .NET MAUI, and Windows Forms.

Submit your session proposal for the community-led .NET Conf 2026 Community Days by October 6, 2026.