Microsoft
Developer Blogs

Creating Teams Live Events via the Microsoft Graph isBroadcast API is deprecated. We encourage developers to use Virtual Event APIs instead.

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...

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...

A little trivia.

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...

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...

Are you even compiling the correct file?

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,...

The case of "Bring your own SAFEARRAY."

This post announces the January 2026 release of the Azure Developer CLI (`azd`).

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...

Azure SDK releases every month. In this post, you'll find this month's highlights and release notes.

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...

Find a way to take ownership.

Introducing Dev Proxy v2.1 with configuration hot reload and stdio proxying

The User Configuration API is now available in the beta endpoint in Microsoft Graph. Use it to create, read, update, and delete user configuration objects in Exchange Online mail folders.

Modern infrastructure work is increasingly agent driven, but only if your AI actually understands the platform you’re deploying. This guide shows how to turn GitHub Copilot CLI into an Azure Cosmos DB aware infrastructure expert by loading the Azure Cosmos DB Agent Kit. In under a...

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.

SPFx is powering the future of Microsoft 365 with AI driven portals and deep integrations across SharePoint Teams and Viva. The January 2026 update shares new features and the roadmap for the next evolution built for the AI era. This is a transparent community driven journey that we shape together.

You have to use the original pointer, but even that won't be good enough.

With the launch of Visual Studio 2026, we announced a Private Preview of GitHub Copilot app modernization for C++, which reduces the cost of adopting the latest version of the MSVC Build Tools. We used the feedback we received from our many Private Preview participants to make...

We're excited to announce the latest 1.22 release of the CMake Tools extension for Visual Studio Code. This update brings a host of new additions, including project outline updates for filtering and bookmarking CMake targets in large CMake projects and expanded CTest support to customize...

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...

Productivity Improvements This month, we are bringing you a series of small yet long requested and popular features to let you better control and customize your editor. These features are currently only available in the Insiders channel and will be available in Release soon. Fast...

The concerns when adding a feature to an existing API.

When developers hear "cloud" and "AI," their first thought is often about cost. "How much will this cost me to learn? Can I build something meaningful without racking up a surprise bill?"   Budget Bytes is a new series is designed to inspire developers to build affordable,...

Meet the .NET team at NDC London 2026 to explore the latest in .NET 10, Azure, and AI-powered development through sessions and 1:1 meetups.

We’re launching Evals for Agent Interop, a starter evaluation kit that provides curated scenarios and representative data that emulate real digital work, and an evaluation harness that organizations can use to self-run their agents across Microsoft 365 surfaces.

Two ways of preserving the data.

VS Code now supports MCP Apps, enabling AI agents to display interactive UIs for richer developer workflows. Read the full article

In Episode 110 of Azure Cosmos DB TV, host Mark Brown is joined by Sajeetharan Sinnathurai to explore how the Azure Cosmos DB MCP Toolkit is changing the way developers build, deploy, and scale AI agents using real application data. As agentic AI systems evolve, one challenge continues...

This week we shipped the GitHub Copilot SDK which takes the agent loop from the Copilot CLI and makes it easy to embed in other applications. We’ve been using, improving, and extending Copilot CLI for the last few months and it’s sparked new ideas about what it means to have the right...

You can wrap it in an IDisposable.

Learn how to streamline AI development by using Microsoft Devtunnels to connect local services with Azure Machine Learning evaluation pipelines, eliminating deployment delays while maintaining comprehensive cloud-based validation.

The Azure Cosmos DB Agent Kit is an open-source collection of skills that teaches your AI coding assistant (GitHub Copilot, Claude Code, Gemini CLI) expert-level Azure Cosmos DB best practices. Install with one command, get production-ready guidance instantly. The Challenge Every...