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How we built the Microsoft Learn MCP Server
When we launched the Microsoft Learn Model Context Protocol (MCP) Server in June 2025, our goal was simple: make it effortless for AI agents to use trusted, up-to-date Microsoft Learn documentation. GitHub Copilot and other agents are increasingly common, and they need to be able to...
Read moreClick to read more about this post.NET 11 Preview 1 is now available!
Find out about the new features in .NET 11 Preview 1 across the .NET runtime, SDK, libraries, ASP.NET Core, Blazor, C#, .NET MAUI, and more!
Read moreClick to read more about this postHow did Windows 95 get permission to put the Weezer video Buddy Holly on the CD?
Asking nicely, and asking a lot of people.
Read moreClick to read more about this postLatest posts
Feb 2, 2026
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Studying compiler error messages closely: Input file paths
Are you even compiling the correct file?
The Old New Thing
Jan 30, 2026
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Build AI Agents with Claude Agent SDK and Microsoft Agent Framework
Microsoft Agent Framework now integrates with the Claude Agent SDK, enabling you to build AI agents powered by Claude's full agentic capabilities. This integration brings together the Agent Framework's consistent agent abstraction with Claude's powerful features, including file editing,...
Semantic Kernel
Jan 30, 2026
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Why not store the SAFEARRAY reference count as a hidden allocation next to the SAFEARRAY?
The case of "Bring your own
SAFEARRAY."The Old New Thing
Jan 30, 2026
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Azure Developer CLI (azd) - January 2026: Configuration & Performance
This post announces the January 2026 release of the Azure Developer CLI (`azd`).
Azure SDK Blog
Jan 29, 2026
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Standardizing Dimensions: Completing the Unified Data Model
Anirudh,
Nitin,
Suresh
Standardizing Dimensions: Completing the Unified Data Model
Introduction
A Unified Data Model is only as strong as the consistency of its dimensions. This article explains why standardizing dimensions is the critical final step in completing the Unified Data...
Unified Data Model at Microsoft
Jan 29, 2026
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Azure SDK Release (January 2026)
Azure SDK releases every month. In this post, you'll find this month's highlights and release notes.
Azure SDK Blog
Jan 29, 2026
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Azure Cosmos DB TV Recap - From Burger to Bots – Agentic Apps with Cosmos DB and LangChain.js | Ep. 111
Jay,
Mark
In Episode 111 of Azure Cosmos DB TV, host Mark Brown is joined by Yohan Lasorsa to explore how developers can build agent-powered applications using a fully serverless architecture. This episode focuses on a practical, end-to-end example that demonstrates how transactional application...
Azure Cosmos DB Blog
Jan 29, 2026
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How can I retain access to the data in a SAFEARRAY after my method returns?
Find a way to take ownership.
The Old New Thing
Jan 29, 2026
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Dev Proxy v2.1 with configuration hot reload and stdio proxying
Waldek,
Garry
Introducing Dev Proxy v2.1 with configuration hot reload and stdio proxying
Microsoft 365 Developer Blog