How Uno Platform built two Model Context Protocol servers in C# so AI agents can ground themselves in real documentation and then see and drive a running cross-platform .NET app. The post How Uno Platform uses .NET, MCP, and AI to build high quality apps appeared first on .NET Blog.

.NET Conf returns November 10-12, 2026, with three days of sessions, community, and the launch of .NET 11. The post .NET Conf 2026 appeared first on .NET Blog.

You built an agent with Microsoft Agent Framework and it works great on your machine. Now what? Turns out deploying it to production takes 1 NuGet package, 3 lines of C#, and 2 commands. Let's do it. The post From dotnet run to Foundry Hosted Agent in 3 lines of C# appeared first on .NET Blog.

C# 15 ships with .NET 11. It adds union types, closed hierarchies, a preview of the updated unsafe model, and a few smaller changes that remove everyday ceremony. The post Explore new features available in C# 15 preview appeared first on .NET Blog.

Route requests across models and providers natively in Microsoft.Extensions.AI with RoutingChatClient, SemanticRoutingChatClient, and FailoverChatClient — new experimental primitives for content-based routing, failover, and custom routing policies. The post Routing and Failover for Microsoft.Extensi...

Get the most out of the latest models by providing the right level of instructions The post Instructions Hygiene – What Frontier Models Still Need You to Say appeared first on .NET Blog.

Find out about the new features in .NET 11 Preview 7 across libraries, runtime, SDK, C#, ASP.NET Core, .NET MAUI, Entity Framework Core, F#, and Windows Forms. The post .NET 11 Preview 7 is now available! appeared first on .NET Blog.

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

Microsoft.Testing.Platform brings failures into GitHub Actions and Azure DevOps, uses pipeline history to separate regressions from flakes, and preserves usable reports when a test host crashes. The post Test reporting in Microsoft.Testing.Platform: from red build to root cause appeared first on .NE...

Build a live speech-to-text app in C# with Foundry Local, a compact Nemotron model, and local model lifecycle management. The post Beyond Chat: live Speech-to-Text with Foundry Local and C# appeared first on .NET Blog.

NuGet API key durations will be reduced to 30 days starting August 17th. This change will significantly strengthen the integrity of the NuGet supply chain. The post Strengthening NuGet Supply Chain Security: Reducing API Key Lifetime appeared first on .NET Blog.

Meet the open-source polyglot testing agent that learns from a repository, writes unit tests, and checks that they build and pass. The post From generated code to trusted code with a unit-test agent appeared first on .NET Blog.

MCP C# SDK v2.0 implements the 2026-07-28 specification with a stateless-first protocol, standardized HTTP headers, and Multi Round-Trip Requests for interactive tools, all while staying backward compatible. The post Announcing v2.0 of the official MCP C# SDK appeared first on .NET Blog.

Meet the MSBuild Binlog Analyzer for VS Code - a Copilot-powered way to read MSBuild binary logs, explain and fix build failures with one click, compare builds, and catch regressions, backed by the Microsoft.AITools.BinlogMcp MCP server. The post Analyze MSBuild Binary Logs with Copilot in VS Code a...

A free, open-source, hands-on course that walks you through modernizing a real legacy ASP.NET application all the way to .NET 10 using the GitHub Copilot modernization agent, step by step. The post Announcing .NET Modernization for Beginners appeared first on .NET Blog.

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

CoreCLR is now the only runtime for .NET MAUI mobile apps in .NET 11 Preview 6. Here is where we are, and why we need you to test today. The post CoreCLR Progress and the Mono Timeline for .NET MAUI appeared first on .NET Blog.

Find out about the new features in .NET 11 Preview 6 across runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, F#, and container images. The post .NET 11 Preview 6 is now available! appeared first on .NET Blog.

Modernize .NET applications in the GitHub Copilot app. Follow your upgrade from assessment through execution in an interactive upgrade canvas. The post Modernize .NET applications in the GitHub Copilot app appeared first on .NET Blog.

A practical tour of the Model Context Protocol tools for .NET build diagnostics - the full Binlog MCP toolset, how those tools run inside a GitHub Actions workflow, and what the evaluation data says about the efficiency gains. The post MCP Beyond the Chat Window: Build Diagnostics in CI appeared fir...

.NET 8 and .NET 9 will both reach end of support on November 10, 2026. Learn what this means and how to upgrade to .NET 10 (LTS). The post .NET 8 and .NET 9 will reach End of Support on November 10, 2026 appeared first on .NET Blog.

SkiaSharp 4.148.0 is the first stable release of SkiaSharp v4. Learn what is new, why you should be excited, and join the SkiaSharp live event on June 30. The post SkiaSharp 4.0 is here: announcing the first stable release appeared first on .NET Blog.

Use the WinApp CLI to add identity to and package .NET desktop applications, enabling deeper integration to Windows and easier distribution. The post Packaging and Package Identity for .NET apps with WinApp CLI on Windows appeared first on .NET Blog.

Diagnose MSBuild build failures and performance issues with AI using the new Microsoft Binlog MCP Server - 15 specialized tools that let your AI assistant investigate binary logs. The post AI-Powered MSBuild Investigation with the Microsoft Binlog MCP Server appeared first on .NET Blog.

Announcing the .NET Day of Agentic Modernization Livestream The post Join us for .NET Day on Agentic Modernization Livestream appeared first on .NET Blog.

Find out about the new features in .NET 11 Preview 5 across the .NET runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and more! The post .NET 11 Preview 5 is now available! appeared first on .NET Blog.

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

Catch up on all the .NET sessions from Microsoft Build 2026 covering .NET 11, union types in C#, AI building blocks, the agentic web, .NET MAUI, and more! The post .NET at Microsoft Build 2026: Must watch sessions appeared first on .NET Blog.

Want to get more out of your GitHub Copilot experience? Here are some easy ways to get started. The post Doing More with GitHub Copilot as a .NET Developer appeared first on .NET Blog.

Material 3 (a.k.a. Material You) support is now available for .NET MAUI apps on Android. Here is how to enable it, what changes today, and what is still on the way. The post Give Your .NET MAUI Android Apps a Material 3 Makeover appeared first on .NET Blog.