Microsoft
Developer Blogs

Azure MCP Server is now available as an MCP Bundle (.mcpb), enabling one-click installation into Claude Desktop and other MCP-compatible clients.

When people talk about building AI agents, they usually focus on models, tools, and prompts. In practice, one of the most important architectural decisions is much simpler: where does the conversation history live? Imagine a user asks your agent a complex question, clicks “try...

But maybe it's not worth it.

On March 31, 2026, malicious versions of the widely used JavaScript HTTP client library Axios were briefly published to the npm registry as part of a supply chain attack. The affected versions — 1.14.1 and 0.30.4 — included a hidden malicious dependency that executed during...

Ubuntu 26.04 (Resolute Raccoon) ships today with .NET 10. Here's how to install .NET 10 from the archive, use the new -resolute container tags, build Native AOT apps, and install .NET 8 and 9 from the dotnet-backports PPA.

Want to build AI agents with JavaScript that go beyond basic chat completions? Agents that reason, call tools, and pull from knowledge bases on their own? We put together a free, open source course to help you get there. LangChain.js for Beginners is 8 chapters and 70+ runnable...

We’re excited to announce the General Availability (GA) of Single Sign-On (SSO) from Native Apps to Embedded Web Views for Microsoft Entra External ID (EEID) Native Authentication. This release marks a major milestone in delivering end-to-end seamless authentication experiences for...

Modern AI agents often aren't bottlenecked by model quality, they are bottlenecked by orchestration overhead. When an agent chains together many small tool calls, each step typically requires a new model turn, driving up latency and token usage. With CodeAct support in Agent...

Inadvertently destroying a staircase while standing on it.

Key insights from the EDA and Ground Truth journey for solving well identity resolution in the Energy industry—challenges that extend to any entity matching problem across distributed systems.

The 2026 ISO C++ developer survey is now open: 2026 Annual C++ Developer Survey "Lite" : Standard C++ It takes about 10 minutes and directly informs the standardization committee and tooling vendors so the C++ ecosystem can continue evolving the right way. Please share your feedback...

We recently brought C++ code understanding tools to GitHub Copilot in Visual Studio and VS Code. These tools provide precise, semantic understanding of your C++ code to GitHub Copilot using the same IntelliSense engine that powers code navigation in the IDE. Until now, these capabilities...

Learn what's new in Visual Studio Code 1.117 Read the full article

Hooks are one of the most popular features in azd, and now you can write them in Python, JavaScript, TypeScript, or .NET, not just Bash and PowerShell. What's new? The Azure Developer CLI (azd) hook system now supports four more languages beyond Bash and PowerShell. You can write hook...

AI apps and agentic workloads expose inefficiencies in your data layer faster than any previous generation of apps. You’re storing embeddings, serving low-latency retrieval, handling bursty traffic from chat and orchestration, and often operating across regions. Done right, Azure Cosmos...

Available in Public Preview Today   Toolbox is a new way to curate, configure, and reuse tools across all of your AI agents without rewiring them every time from Foundry.  Today, teams build agents across different frameworks and runtimes. Each agent often wires tools directly,...

When we launched Microsoft Agent Framework last October, we made a promise: building production-grade AI agents should feel as natural and structured as building any other software. Today, we’re delivering on that promise — with the v1.0 release of Microsoft Agent Framework and the...

Agents are already transforming how developers solve problems. Whether it's a coding agent that refactors your repo overnight, a research agent that synthesizes hundreds of documents into a brief, or an ops agent that monitors and remediates infrastructure — the pattern is clear....

With just a single improvement in the REST API of Azure DevOps, we achieved a massive reduction in CPU usage and execution time when managing Git policies: 2x less CPU and 10-15x faster execution! This change is already available to all users of Azure DevOps, and it's time to share a bit...

The Model Context Protocol (MCP) is quickly becoming a common way for AI agents to discover and use tools. It provides a consistent interface to databases, APIs, file systems, and third-party services, which makes it easier to plug capabilities into agent workflows. However, MCP...

Windows App Development CLI v0.3 is here! This release brings some of our best features yet including a full run-and-debug experience outside Visual Studio and built-in UI Automation from the command line. With v0.3, we've unlocked a whole class of agentic and automation scenarios....

So-called "fractal page mapping".

We're excited to announce the public preview of the highly anticipated Actual Result (AR) feature for manual testing in Azure Test Plans! This feature has been one of the top requests of the community, and we're thrilled to make it available for you. Why use the Actual Result...

~1,900 lines of Python. Zero dependencies. Saves you an hour a day. GitHub → · pip install auto-memory Now give Copilot CLI enhanced context recall. Point it at deploy/install.md and let it cook. 🍳 Are you tired of using the slash /compact command every 10 min? The...

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

This post is the first in a 3-part series: Foundations (this post) Start shipping (context engineering, MCP servers, orchestration) App modernization (Java, .NET, PHP, microservices) Bookmark this post for quick reference as you start exploring Agentic DevOps. It will be...

The Agent-Ready Database: Security, Backup, and MCP Part 4 of 4 – The Multi-Model Database Series This is the final post in a four-part series on multi-model databases in SQL Server 2025 and Azure SQL - exploring how the optimizer, storage engine, and security layer treat each data...

We are releasing .NET 10.0.7 as an out-of-band security update to address CVE-2026-40372.

Today we are absolutely thrilled to announce the release of TypeScript 7.0 Beta! If you haven't been following TypeScript 7.0's development, this release is significant in that it is built on a completely new foundation. Over the past year, we have been porting the existing TypeScript...

Protecting sensitive data is a foundational requirement for modern applications. As organizations scale their use of Azure Cosmos DB across teams, environments, and workloads, controlling who can see sensitive information becomes increasingly important. Today, we are excited to...

Aspire 13.2 keeps the JavaScript story moving with Bun for Vite, more predictable containers, and small but meaningful fixes across debugging and builds.

Somehow xor became the most popular version.

This update brings a set of improvements and changes across both local and remote Azure DevOps MCP Servers. Here’s a summary of what’s changed. Query work items with WIQL We’ve introduced a new wit_query_by_wiql tool that enables users to construct and run work item WIQL queries....

The Azure Developer CLI (azd) now integrates with GitHub Copilot for AI-assisted project scaffolding and intelligent deployment error troubleshooting, helping you resolve common Azure errors like MissingSubscriptionRegistration, SkuNotAvailable, and StorageAccountAlreadyTaken without leaving the terminal.

The C# Dev Kit team replaced C++ Node.js addons with C# and Native AOT, removing a dependency on Python. This post walks through building a Node.js native addon entirely in C# using N-API, LibraryImport, and UnmanagedCallersOnly.

You still have to use aligned accesses, even though the pixels might not be aligned.