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Highlights
.NET AI Essentials - The Core Building Blocks Explained
Learn how Microsoft.Extensions.AI provides a unified API for building intelligent .NET applications with any LLM provider - one interface, endless possibilities, with built-in middleware, telemetry, structured outputs and more.
Read moreClick to read more about this postBuild AI Agents with GitHub Copilot SDK and Microsoft Agent Framework
Microsoft Agent Framework now integrates with the GitHub Copilot SDK, enabling you to build AI agents powered by GitHub Copilot. This integration brings together the Agent Framework's consistent agent abstraction with GitHub Copilot's capabilities, including function calling, streaming...
Read moreClick to read more about this postLatest posts
Feb 3, 2026
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Deprecation notice: Teams Live Events meeting creation via Microsoft Graph
Creating Teams Live Events via the Microsoft Graph isBroadcast API is deprecated. We encourage developers to use Virtual Event APIs instead.
Microsoft 365 Developer Blog
Feb 3, 2026
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Part 2: Building a Python CRUD API with Azure Functions and Azure Cosmos DB
Series: Building Serverless Applications with Azure Functions and Azure Cosmos DB
In the first post of this series, we focused on establishing the fundamentals of serverless architecture by building and deploying a simple HTTP API using Azure Functions and FastAPI. The post centred on...
Azure Cosmos DB Blog
Feb 3, 2026
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Performance improvements to MEF-based editor productivity extensions
Tina,
Amadeus
If you use editor productivity extensions for Visual Studio 2026, there's good news—they can now load faster! Extension developers with existing MEF-based editor productivity extensions should read this blog to learn about recent changes and how they might be affected.
We...
Visual Studio Blog
Feb 3, 2026
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Some small stories about the giant satellite dish antenna that was behind Microsoft Building 11
A little trivia.
The Old New Thing
Feb 2, 2026
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Java OpenJDK January 2026 Patch & Security Update
Hello Java customers!
We are happy to announce the latest January 2026 patch & security update release for the Microsoft Build of OpenJDK. Download and install the binaries today.
OpenJDK 25.0.2
OpenJDK 21.0.10
OpenJDK 17.0.18
OpenJDK 11.0.30
Check our release...
Microsoft for Java Developers
Feb 2, 2026
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Azure Cosmos DB Data Explorer now supports Dark Mode
If you spend time in the Azure Portal’s using Azure Cosmos DB Data Explorer, you know it’s a “lots of screens, lots of tabs, lots of work happening” kind of place. So I’m excited to share a small upgrade that makes a big difference: Dark Mode is now supported in Cosmos DB Data...
Azure Cosmos DB Blog
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