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How to test agent skills without hitting real APIs

Your agent skill calls an API. The moment you start evaluating it, every run either costs money or mutates production data. Learn how to mock APIs transparently so you can run evals without changing your skill or hitting real endpoints.
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Jul 14, 2026
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.NET and .NET Framework July 2026 servicing releases updates

Rahul,
Tara
A recap of the latest servicing updates for .NET and .NET Framework for July 2026.
.NET Blog
Jul 14, 2026
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CoreCLR Progress and the Mono Timeline for .NET MAUI

David Ortinau
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.
.NET Blog
Jul 14, 2026
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.NET 11 Preview 6 is now available!

.NET Team
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.
.NET Blog
Jul 14, 2026
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Built-in Agent Skills Bring .NET and Azure Expertise into Visual Studio

Simona,
Wendy,
Yun
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...
Visual Studio Blog
Jul 14, 2026
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Package Status

Howard Kapustein
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...
Inside MSIX
Jul 14, 2026
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Building Agents for Teams: Turning conversations into outcomes

Joey Glocke
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...
Microsoft 365 Developer Blog
Jul 14, 2026
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Microspeak: Double-click and drill down

Raymond Chen
Please, tell me more.
The Old New Thing
Jul 13, 2026
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How a Large Enterprise Migrated 47 TB and 7,000+ Collections to Azure DocumentDB in Under 48 Hours

Sandeep S. Nair
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...
Azure DocumentDB Blog
Jul 13, 2026
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Pure Virtual C++ 2026 [Meet the Speakers, Part 2]: The AI-Native C++ Developer Workflow

Marian Luparu
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...
C++ Team Blog