.NET Blog Free. Cross-platform. Open source. A developer platform for building all your apps.
- Routing and Failover for Microsoft.Extensions.AI
by Joshua Yue on August 13, 2026 at 7:30 pmRoute 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.Extensions.AI appeared first on .NET Blog.
- Instructions Hygiene – What Frontier Models Still Need You to Say
by Wendy Breiding (SHE/HER) on August 12, 2026 at 5:05 pmGet 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.
- .NET 11 Preview 7 is now available!by .NET Team on August 11, 2026 at 6:30 pm
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.
- .NET and .NET Framework August 2026 servicing releases updatesby Rahul Bhandari (MSFT), Tara Overfield on August 11, 2026 at 6:28 pm
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.
- Test reporting in Microsoft.Testing.Platform: from red build to root cause
by Amaury Levé on August 6, 2026 at 5:05 pmMicrosoft.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 .NET Blog.
- Beyond Chat: live Speech-to-Text with Foundry Local and C#
by Bruno Capuano on August 4, 2026 at 9:00 pmBuild 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.
- Strengthening NuGet Supply Chain Security: Reducing API Key Lifetimeby .NET Team on August 3, 2026 at 6:10 pm
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.
- From generated code to trusted code with a unit-test agent
by Amaury Levé on July 31, 2026 at 3:00 pmMeet 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.
- Announcing v2.0 of the official MCP C# SDK
by Jeff Handley on July 28, 2026 at 10:00 pmMCP 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.
- Analyze MSBuild Binary Logs with Copilot in VS Code
by Yuliia Kovalova, Jan Krivanek on July 27, 2026 at 5:00 pmMeet 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 appeared first on .NET Blog.
