.NET Foundation

Independent foundation fostering open development and collaboration around the growing collection of open source technologies for .NET.

[.NET Foundation @dotnetfdn]

📣Want to amplify your .NET project? Submit your blogs and videos to the .NET Foundation content repo! We’ll help share your technical brilliance with the community.
Go here: https://t.co/Za8RCiIndJ #dotnet #OSS

[.NET Foundation @dotnetfdn]

Announcing v2.0 of the official MCP C# SDK
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.

https://t.co/Jk3M8WCej6

[.NET Foundation @dotnetfdn]

ICYMI - What Every .NET Developer Actually Needs to Know in 2026

https://t.co/aoH73dw6uk via @mjovanovictech #dotnet

[.NET Foundation @dotnetfdn]

Analyze MSBuild Binary Logs with Copilot in 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.

https://t.co/4IIhdUXSeh #dotnet

[.NET Foundation @dotnetfdn]

.NET meetups are a great and fun way of meeting other like-minded developers, and joining one couldn't be easier. Learn about tricks & tips, discover the latest .NET has to offer, or just come to be inspired.
Learn more: https://t.co/us2UhcAxLJ #dotnet #OSS

[.NET Foundation @dotnetfdn]

Stop writing code someone already perfected. From Polly and BenchmarkDotNet to Roslyn, the .NET Foundation backs the open-source tools keeping your stack alive: https://t.co/KoXciESoPm #dotnet

[.NET Foundation @dotnetfdn]

Auditing and Telemetry for the Agent Governance Toolkit.
We've entered an era where AI agents autonomously invoke tools — reading and writing files, calling APIs, querying databases.

https://t.co/9ZgRbJTfnl #dotnet #dotnetcore

[.NET Foundation @dotnetfdn]

MCP for Beginners
.NET dev perks:
One protocol → universal tools
C# MCP servers
Sampling + roots + elicitation
13‑lab real‑world capstone
A must‑learn for AI‑powered .NET apps

https://t.co/nv4hJHFRbS #dotnet

[.NET Foundation @dotnetfdn]

A Python & A Viking warlord: How computer stuff got named.

https://t.co/dl7h6dPbsj #dotnet

[DeeDee Walsh ⛷🎿❄️ @ddskier]

ICYMI: We went live with Jeff Fritz @csharpfritz for a Hands-On AI Workshop vibe coding a real AI app from empty editor to running agent.

Catch the recap here: https://t.co/cwMiwkwnEX #AI #agenticai #copilot

[.NET Foundation @dotnetfdn]

ICYMI .NET and .NET Framework July 2026 servicing releases updates - .NET Blog
A recap of the latest servicing updates for .NET and .NET Framework for July 2026.

https://t.co/X7D7LxLe8Q #dotnet

[.NET Foundation @dotnetfdn]

ICYMI: Announcing TypeScript 7.0. A 10x faster native port of TypeScript.

https://t.co/ByLdqsnY3a #dotnet

[.NET Foundation @dotnetfdn]

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

https://t.co/r8gfDYuplV #dotnet

[.NET Foundation @dotnetfdn]

HTTP/3 is the newest HTTP version in .NET—but is it always the fastest? Not so fast.
I benchmarked HTTP/1.1, HTTP/2, and HTTP/3 across real scenarios, and the results might surprise you.
Enable HTTP/3, but don’t ditch fallback.

https://t.co/ueDOUxN3KD @RealDotNetDave

[.NET Foundation @dotnetfdn]

API Key Authentication Middleware In ASP NET Core - A How To Guide
Want to add API key authentication middleware into your #ASPNETCore application? Check out this article for a simple code example that shows you how!

https://t.co/BPzbjRQCKd @devleader #dotnet

[.NET Foundation @dotnetfdn]

ICYMI - .NET 8 and .NET 9 will reach End of Support on November 10, 2026 - .NET Blog
.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).

https://t.co/1PSXEKUd0X #dotnet

[.NET Foundation @dotnetfdn]

Ever wonder why “.NET Host” shows up in Task Manager—or why BenchmarkDotNet sometimes hangs? David breaks it down what happens before Main() runs: dotnet, apphost, hostfxr, hostpolicy, CoreCLR, & how to diagnose stuck host processes.
https://t.co/6kGhtocaaX @RealDotNetDave

[.NET Foundation @dotnetfdn]

Agent Skills for .NET Is Now Released | Microsoft Agent Framework
You can now give your .NET agents reusable packages of domain expertise - instructions, reference documents, and scripts they load only when a task needs

https://t.co/B9FO1BtUdr #dotnet

[.NET Foundation @dotnetfdn]

ICYMI - Combining API versioning with OpenAPI in .NET 10 applications - .NET Blog
Learn how to implement API versioning in your .NET 10 applications using OpenAPI for better API management and documentation.

https://t.co/7NwBWOmXjt
@sandertenbrinke

[.NET Foundation @dotnetfdn]

It compiled on the first try... said no developer ever.

Join @csharpfritz for a live deep dive into the AI tools changing how .NET developers build software.

Live demos 📅 July 17 🎥 Live on YouTube & Twitch Reserve your free spot today.

Register here: https://t.co/Bhks3tre8p