Microsoft
Developer Blogs

A recap of the latest servicing updates for .NET and .NET Framework for July 2026.

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.

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.

Visual Studio now includes built-in Agent Skills, created by experts from the .NET and Azure teams, to help you better customize your agentic workflow and complete development tasks more efficiently, starting with the 18.8 Release. Agent Skills are reusable capabilities that enable your...

Every package has a set of status flags describing its current health and availability. These can be queried via the Package.Status property. A package may report more than one status value at a time if multiple conditions apply. Package Status Groups The various states fall into three...

The Microsoft Teams platform mission is to build the best collaborative platform in the world. We want to make it easy for developers to build agents that participate seamlessly in chats, channels, and meetings, helping teams turn ideas into action in real time. By bringing agents...

Please, tell me more.

Large database migrations are where good planning either pays off or falls apart. In a MongoDB-compatible estate with thousands of collections, the hard part is not only moving data. It is deciding what to move, what to defer, how to sequence the work, and how to keep the system stable...

Pure Virtual C++ 2026 streams Tuesday, July 21, 2026 at 9:00 AM PT, a free, one-day virtual conference for the whole C++ community, live on YouTube (Microsoft Reactor) and Twitch, with on-demand recordings on the Visual Studio YouTube channel afterward. Register now → Welcome...

One of the best parts of a Visual Studio Subscription is discovering benefits that can make your day-to-day development work easier and more cost effective. One benefit that deserves more attention is Azure Dev/Test pricing. In fact, it's one of the most valuable benefits...

Guard pages all the way down?

A new release of the Microsoft build of Go is now available for download.

Decoding where those integer came from.

TL;DR We bundled an internal Azure Pipelines task extension into a single bundled JavaScript file using esbuild. The task package dropped from tens of megabytes and thousands of files to three files per task ( script.js ,  task.json , and  icon.png ). The change took about 20 lines...

Microsoft Agent Framework for Go is entering public preview, bringing Agent Framework concepts to Go developers building agents and multi-agent workflows.

Meet the speakers behind Pure Virtual C++ 2026. In part one, Ryan Shepherd and David Li show how to build faster and smaller with C++20 modules and GitHub Copilot build performance.

Modernize .NET applications in the GitHub Copilot app. Follow your upgrade from assessment through execution in an interactive upgrade canvas.

SharePoint Copilot Apps are now in public preview, introducing a new way to bring guided, action-oriented business experiences into Microsoft 365 Copilot. By combining natural language reasoning with structured UX, validation, permissions, and deterministic operations, organizations can help users move from intent to trusted outcomes directly in the Copilot flow.

You need to rebuild everything that was dependent on the change.

Part 3 of Build your own claw and harness with Microsoft Agent Framework. In Part 2 our personal finance assistant learned to work with your data safely: it reads your portfolio, asks before it trades, and remembers what matters across sessions. It's useful - but everything it knows is...

These June updates add a vcpkg-tool switch to skip installation when packages are already cached, OpenHarmony (OHOS) platform support, and major library updates including curl 8.21, CGAL 6.2, and Graphviz 15.

How query decomposition separates metadata filters from visual intent to significantly improve media asset retrieval quality.

Learn what's new in Visual Studio Code 1.129 (Insiders) Read the full article

Learn what's new in Visual Studio Code 1.128 Read the full article

A new release of the Microsoft build of Go including security fixes is now available for download.

Join us for a free online event series kicking off July 16 to learn how to get started with the GitHub Copilot App!

Today we are proud to announce the availability of TypeScript 7, a 10x faster native port of TypeScript! Since its early days, TypeScript has promised to deliver on JavaScript that scales. By bringing strong type-checking and rich tooling to the world of JavaScript, TypeScript made it...

Most "AI agent" demos forget everything the moment the process exits. That's fine for a toy project, but useless for anything real. An agent that helps you write, triage, or support needs two things a language model alone can't give it: durable state and the ability to recall the right...

A two-in-one package.

This is the seventh article in a series about Agent Experience (AX): the practice of making AI coding agents work correctly with your technology. The series covers what you can and can't control in the agent stack, how to measure whether your extensions are helping or hurting, and how to...

Python's agent-framework-orchestrations package is now 1.0.0. That puts Microsoft Agent Framework's orchestration layer at 1.0 across Python and .NET. Sequential, concurrent, group chat, handoff, and magentic orchestration are now stable in both SDKs. You can pick the coordination...

Applications are not packages. Let me repeat. Applications are not packages. This is a common misconception due to the (too) often blurring of concepts and terminology. Packages and applications are different and distinct things, so it's important to understand what those words mean...

It used some heuristics.

There's advice making the rounds: replace your CLI args with a single --json payload so agents can use your tool more effectively. The thinking being, that agents already think in structured formats, and nested data maps cleanly to JSON. Flat args on the other hand, force awkward...

You can now give your .NET agents reusable packages of domain expertise - instructions, reference documents, and scripts they load only when a task needs them - through a stable, production-ready API. Agent Skills for .NET in Microsoft Agent Framework has moved out of experimental preview...

Claude is now generally available in Microsoft Foundry. Here's everything else that shipped between Build 2026 and the end of June — autopilot agents, expanded Toolboxes and Routines, Agent Optimizer's private preview, and more.