Microsoft
Developer Blogs

Who goes first?

In the new year, we’ll be retiring the Global Personal Access Token (PAT) type in Azure DevOps. Global PATs allow users to authenticate across all accessible organizations. While this can feel convenient, a single credential with broad reach creates a concentrated security risk —...

If they don't match, then the 8-bit strings are basically broken already.

As someone who lives and breathes in the command line, I love making my terminal feel like home. Windows Terminal is full of personalization options that really allow for a custom experience. Additionally, I can stay within my terminal for my development with GitHub Copilot with the...

Aspire provides a *batteries included* approach through **integrations**

The Azure Cosmos DB Linux-based vNext emulator (preview) is a local version of the Azure Cosmos DB service that runs as a Docker container on Linux, macOS, and Windows. It provides a cost-effective way to develop and test applications locally without requiring an Azure subscription or...

For years, “Database” and “Search systems" (think Elastic Search) lived in separate worlds. While both Databases and Search Systems operate in the same domain (storing, indexing and querying data), they prioritized different aspects. OLTP Databases prioritized Structured and...

What's new in the Visual Studio Code November 2025 Release (1.107). Read the full article

We are excited to announce general availability for the SharePoint Framework 1.22. This time focus is primarily on updating the build toolchain and to address npm audit issues.

You’re a .NET developer with a busy morning, and an Azure DevOps ticket drops: “Login endpoint 500s under load.” You’ve got to fix it, review a teammate’s feature branch, and keep your repo clean - all before lunch. Visual Studio’s Git tools turn this everyday Git workflow of...

Getting it from a place that might have been obvious in the past, but maybe not today.

A robust agent onboarding process is the backbone of scalable, reliable multi-agent AI systems—enforcing uniqueness, rigorous evaluation, and responsible AI practices at every step.

We’re thrilled to announce that Azure DevOps Server is now generally available (GA)! This release marks the transition from the Release Candidate (RC) phase to full production readiness, delivering enterprise-grade DevOps capabilities for organizations that prefer self-hosted...

A recap of the latest servicing updates for .NET and .NET Framework for December 2025.

Learn how to implement blue-green deployment in Azure Container Apps using Azure Developer CLI (azd) revision-based deployment strategy.

Learn how to implement in-app purchases in your .NET MAUI apps with our new cross-platform billing sample for Android, iOS, Mac Catalyst, and Windows.

Keeping JavaScript/TypeScript projects up-to-date can be a challenge, especially when it’s time to upgrade a bunch of npm packages or adopt the latest frameworks. We’ve heard from many JS/TS developers that modernizing an older app (upgrading dependencies, fixing breaking changes,...

Let's ask the locale.

We’re thrilled to introduce Microsoft Entra PowerShell v1.1.0 available on PowerShell Gallery. The headline feature is No more version pinning to Microsoft Graph PowerShell v2.25.0. You can now use the latest Graph modules without restrictions, giving you unmatched flexibility and...

We’ve heard you and we’ve made it happen! One of the most requested changes from our community has been greater flexibility when working with Microsoft Graph PowerShell. Previously, Entra PowerShell pinned its dependency to Microsoft Graph PowerShell v2.25, which limited...

Azure Backup for Azure Cosmos DB is a new option that lets you securely protect and recover your Azure Cosmos DB data for compliance, audit, and ransomware protection scenarios. It leverages Azure Backup’s vault isolation and Azure Cosmos DB’s native backup streams to deliver...

Explore how the Learn MCP server enhances the developer experience with Copilot, showcase practical examples, and provide straightforward integration instructions for Visual Studio, Visual Studio Code, the Copilot Command Line Interface, and the Copilot Coding Agent

Introducing new networking features in .NET 10 including HTTP space, WebSockets, security and more!

Building AI agents with the Model Context Protocol (MCP) is powerful, but when it comes to hosting your MCP server in production, you need a solution that's reliable, scalable, and cost-effective. What if you could deploy your regular Node.js MCP server to a serverless platform that...

Aspire 13 introduces first-class Python support with dedicated APIs for hosting Python applications, modules, and ASGI web apps alongside your .NET services.

Starting with the easy case, or at least it looks easy.

Build enterprise-grade RAG agents with Foundry IQ Knowledge Bases in ~20 lines of Python. Learn how the Azure AI Search Context Provider brings intelligent, multi-hop retrieval to the Microsoft Agent Framework—no fragmented pipelines, just plug in the knowledge your agent needs.

2025 was a year of incredible progress for AI and our industry as a whole. At Microsoft and GitHub, we've innovated beyond isolated chats and prompts to building systems that collaborate with connected workflows and operational intelligence. This shift can be seen across the stack,...

You'll have to trick yourself before anybody notices, which may not be possible.

Ever since MCP launched, every customer has asked the same thing: “How does a private MCP registry actually work, and how do we configure it for our enterprise?”. So today, on a snowy, freezing Friday in Zurich, I grabbed a coffe, opened the GitHub docs, dove into Azure API...

.NET Conf 2025 is over, but you can catch up with all the announcements and fun with video recordings, slides, demos, and more.

As artificial intelligence continues to reshape industries and redefine the boundaries of innovation, Microsoft is proud to announce a leap forward in secure, high-performance computing in our Secret and Top Secret clouds: the integration of NVIDIA H200 Tensor Core GPUs into Azure’s AI...

You can't. You'll have to do it before the process starts.

There are many scenarios where Copilot Chat can feel limited by the built-in model training data. Maybe you want guidance on the latest web framework, documentation, or project-specific resources—but Copilot’s responses just aren’t specific enough. For developers who...

Introducing Dev Proxy v2.0 with improved AI telemetry, and small breaking changes.

MCP (Model Context Protocol) is a standard protocol that enables AI agents to securely connect with apps, data, and systems, supporting easy interoperability and seamless platform expansion. At Ignite, Microsoft Foundry introduced Foundry Tools, which serves as a central hub for...

Announcing the preview of open, modular data ingestion building blocks in .NET, empowering developers to build scalable AI pipelines with seamless integration, extensibility, and easy getting started experiences across the .NET ecosystem.

Visual Studio 2026 is here! If you haven’t heard the news yet, we’re excited to share with you that Visual Studio 2026 is now generally available! This new version can better assist you with several performance improvements, a redesigned user experience, and a major leap in...

A straight look at what’s behind the keys We’ve all tried unlearning a keyboard shortcut - it feels like forgetting how to breathe. Muscle memory doesn’t mess around. We wrestle with this every time someone suggest a “quick” shortcut change. It’s not just editing a keybinding...

Request the directory security attributes that correspond to your proposed operation.

A deep dive into the evolution of Aspire Pipelines from basic callbacks in version 9.4 to the sophisticated pipeline execution model in Aspire 13, covering deployment orchestration, concurrency, and state management.

The VS Code Insiders Podcast is your insider's guide to the features, decisions, and people shaping the future of Visual Studio Code. Read the full article

A new release of the Microsoft build of Go including security fixes is now available for download.

Join us for AI Dev Days, a two-day virtual event exploring the latest Microsoft Azure, Foundry and GitHub innovations. Whether you’re modernizing legacy apps, building with agents, or exploring the newest AI models, this is your moment to skill up, ship faster, and connect with experts.

Discover how treating AI agents as collaborators, not automation, transforms engineering workflows and accelerates complex projects

We’re excited to share all DirectX Graphics Samples have been updated to use the latest DirectX 12 Agility SDK. What’s New: Agility SDK Integration: All samples now leverage the latest Agility SDK for improved compatibility and faster adoption of new DirectX capabilities. ...

Mobile security goes beyond verifying user identity. If an attacker steals a valid token, how will your backend distinguish a legitimate request from one reproduced in an emulator or cloned environment? This is a gap in traditional authentication flows when applied to the mobile...

Earlier this year, the TypeScript team announced that we've been porting the compiler and language service to native code to take advantage of better raw performance, memory usage, and parallelism. This effort (codenamed "Project Corsa", and soon "TypeScript 7.0") has been a significant...

With Azure DocumentDB, Tata Neu delivers seamless authentication for millions of users, accelerates credit card onboarding across partners, unifies loyalty programs for hundreds of millions of members, and powers AI-driven support experiences across more than 60 brands. This...

In Visual Studio 2026 we introduced Copilot Profiler Agent, a new AI-powered assistant that helps you analyze and optimize performance bottlenecks in your code. By combining the power of GitHub Copilot with Visual Studio's performance profiler, you can now ask natural language questions...

The large obstacles.

This guide covers setting up Claude Code CLI and VS Code extension with Microsoft Foundry, configuring CLAUDE.md for project context, integrating Spec Kit for structured development, and running Claude Code in GitHub Actions. Prerequisites Azure subscription with Foundry access ...

Background  The  Property parameter introduced in Version 0.10.0-preview allowed customers to select specific properties they would want to return in the response and is used in these 2 main scenarios:   To request extra properties that are not returned by...

Data API builder (DAB) provides REST and GraphQL endpoints over SQL Server, Azure Cosmos DB, PostgreSQL, MySQL, and SQL Data Warehouse. The request-body-strict configuration value controls how REST endpoints treat unknown JSON properties in the payload: When set to true...

December 10, 2025 8 am - 10 am Pacific Registration: https://aka.ms/OSSAISummitRegistration Overview AI development is moving at a pace that leaves most teams reacting instead of leading. The next generation of applications will be built by people who understand how to design...

In the explosive era of Agentic AI, we're not just seeking more powerful models—we're searching for a development experience that lets developers actually get some sleep. When building Agents locally, we've traditionally faced three major challenges: Black-Box Execution: What is...

Visual Studio 2026 introduces new GitHub Copilot capabilities to support C++ developers in three development tasks:  Performing large-scale C++ refactors  Improving C++ build performance   Upgrading Microsoft C++ (MSVC) Build Tools  These experiences are...

Remembering some old APIs.

This blog post shares real-world experiences from Microsoft's ISE team using GitHub Copilot to accelerate AI development workflows, demonstrating how AI tools can significantly speed up tasks like creating documentation, class diagrams, data visualizations, and demo scripts when used by experienced developers.

You can ask for its handle and mark it read-only.

We're thrilled to announce the release of ASP.NET Core OData 10.0.0 Preview 1, a major modernization update that embraces .NET's native System.DateOnly and System.TimeOnly types! This release upgrades to .NET 10.0 and replaces OData's proprietary Edm.Date and Edm.TimeOfDay CLR wrapper...

Key Observability Trends Around GitHub Security Modern enterprises are increasingly adopting DevSecOps practices, integrating security into every phase of the development lifecycle. Key observability trends include: Unified Security Dashboards: Organizations seek a single...

If you want to host UI, use a real window (possibly hidden).

Join us live on December 9 to explore the newest, most practical ways to modernize your .NET apps with Azure, AI, and powerful agentic tooling.

The translation team sets the deadline.

We're excited to announce that OData Model Builder 3.0.0 Preview 1 has been officially released and is available on NuGet: Microsoft.OData.ModelBuilder 3.0.0 Preview 1 This is a major release that brings the library up to date with the latest .NET and OData ecosystem, featuring...

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

Managing containers can be one of the most repetitive parts of modern development. Between remembering CLI commands, switching contexts, and digging through logs, it’s easy to lose focus on the actual code you’re building. The latest release of the VS Code Container Tools extension...

Celebrates Aspire 13.0 community contributions, highlighting key PRs that improved App Service, Kusto workflows, dashboards, and cross-language support.

Give your agents the power to remember  Imagine your agent never asks the same question twice. Until now, most agents have been stateless. Each conversation resets to zero, forgetting what users said just minutes ago or weeks ago. Developers tried to bridge this gap with homegrown...

Across industries, organizations are moving from experimenting with single agents to running AI at the center of their business operations. While single agents excel at focused tasks, customers quickly discover that real enterprise work stretches across multiple steps, involves different...

Introduction Translation isn’t just converting words—it’s enabling global communication. Yet for businesses operating worldwide, achieving accuracy, speed, and domain-specific terminology has been a persistent challenge. Market trends show that 70% of consumers prefer content in...

At Microsoft Ignite this year, we’re excited to announce that Azure Content Understanding in Foundry Tools is now generally available (GA). Over the past months, we’ve seen preview usage across industries, from large consultancies to healthcare leaders, with invaluable customer...

Accelerate your trustworthy AI journey with the enhanced AI Red Teaming Agent in Microsoft Foundry. Empower developers to automate adversarial testing for both models and agentic systems—covering risks like prompt injection, prohibited actions, sensitive data leakage, and task adherence. Integrate red teaming into your CI/CD pipelines using the Foundry SDK and no-code UI wizard, enabling continuous safety evaluation and rapid prototyping. With PyRIT’s open-source attack strategies and customizable risk definitions, you can systematically probe vulnerabilities, benchmark improvements, and ensure robust safeguards as agentic solutions move into production. Start today by exploring the docs, trying out sample workflows, and embedding red teaming into your development lifecycle.

We’re excited to announce that TypeSpec for Microsoft 365 Copilot is now generally available! This milestone marks the first stable release of the domain-specific language (DSL) designed to streamline how developers build and extend Microsoft 365 Copilot. Whether you’re creating...

SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This monthly blog series kicks off our journey into the next evolution - transparent, community-driven, and built for the AI era. Let’s shape what’s next, together.

Challenge accepted.

Starting with Visual Studio 2026, we are introducing a new support lifecycle for the Microsoft C++ (MSVC) Build Tools. We are also updating the MSVC release cadence. As Visual Studio moves to a Modern Lifecycle with monthly feature updates and an annual new version, decoupling the...

Overview Working with table data is an essential part of database development — whether you’re validating behavior, debugging issues, or quickly seeding data. But switching between tools or writing repetitive T-SQL statements can slow down your workflow. We are excited to announce...

Visual Studio will adopt the Modern Support Lifecycle as a continuously updated IDE designed to deliver innovation as soon as it is ready, while maintaining the reliability and stability you count on every day with control over your build tools choices.

You've far exceeded the design goals and have even exceeded the expressive ability of a float.

The SharePoint team is excited to (finally) bring Site Collection creation to Graph! Starting in Microsoft Graph beta you can now create new site collections!

We’re happy to announce that OData .NET (ODL) 9 Preview 3 has been officially released and is available on NuGet: Microsoft.OData.Core 9.0.0 Preview 3 Microsoft.OData.Edm 9.0.0 Preview 3 Microsoft.Spatial 9.0.0 Preview 3 Microsoft.OData.Client 9.0.0 Preview 3 What’s...

Ignite 2025 brought many innovations for developers building agents for Microsoft 365. From new capabilities in Declarative Agents and Custom Engine Agents to the introduction of Microsoft Agent 365, the platform now enables organizations to architect intelligent solutions that are...

I don't see it.

Developers can now move from idea to Azure-ready code in minutes with VS Code for the Web – Azure. This browser-based environment removes setup time, reduces friction, and gives you immediate access to pre-configured runtimes, GitHub tools, and Azure integrations. As a result, you can...

Azure DevOps or GitHub Enterprise ? Today, in the Microsoft ecosystem, two Software Development Lifecycle management platforms coexist: - Azure DevOps is designed from the ground up for enterprise with advanced planning features through Azure Boards, build and release automation with...

An exploration of how .NET evolved from a distributed build system to Unified Build, dramatically reducing complexity and build times while improving flexibility and predictability for shipping .NET releases.

At Build 2025, we introduced the Microsoft 365 Copilot APIs to help developers bring grounded AI into their solutions without rebuilding indexes or compromising security. The response has been encouraging, and your feedback continues to guide the direction of the...

Introduction As cloud-native architectures scale across thousands of containers and virtual machines, Java performance tuning has become more distributed, complex, and error-prone than ever. As highlighted in our public preview announcement, traditional JVM optimization relied on expert,...

Today we are announcing the Public Preview of the Azure Command Launcher for Java, a new tool that helps developers, SREs, and infrastructure teams standardize and automate JVM configuration on Azure. The goal is to simplify tuning practices and reduce resource waste across Java...

Today, we’re introducing a powerful new way to bring AI directly to your mobile apps: Foundry Local on Android. Starting now, you can build Android applications that run AI on-device—no cloud round trips required. Sign up for the gated preview here:...

Today marks a big step forward with the public preview of Dynamic Data Masking (DDM) for Azure Cosmos DB. This feature helps organizations protect sensitive data without requiring changes to application logic or database interactions. What is Dynamic Data Masking? Dynamic Data Masking...

We’re excited to announce the Azure Cosmos DB SRE Agent built on Azure SRE Agent; a new capability designed to simplify troubleshooting and improve reliability for your applications running on Azure Cosmos DB. Some key features of Azure Cosmos DB SRE Agent are:  Sub-Agent...

Account Key Usage Metadata is a new security and observability feature that helps Azure Cosmos DB customers avoid service disruptions during key rotations. It provides visibility when each account key was last used, allowing teams to make informed decisions before rotating or migrating to...

Have you ever faced a situation where two different workloads share the same container, and one ends up slowing down the other? This is a common challenge for many of our customers running applications on Azure Cosmos DB. Imagine these scenarios: A background job consumes most of...

We are excited to announce the preview of Online Copy Jobs, a powerful new feature designed to make data migration between containers seamless and efficient with minimal downtime. With this feature, you can replicate data from a source to a destination container in real time without...

TL;DR Learn the best practices to evaluate and optimize the RAG quality of your agent using evaluations in Foundry Observability. This tutorial demonstrates these 2 best practices before deploying your RAG agent: 1. Evaluate and optimize end to end your RAG agent using reference-free...

How to get started with Azure OpenAI's next-generation GPT-4o audio models for transcription and text-to-speech applications.

In today’s rapidly evolving AI landscape, developers are seeking reliable, secure, and predictable language capabilities to power the next generation of enterprise-grade agents. As agentic architecture becomes central to modern applications, teams need tools that deliver stronger...

The access violation exceptions will continue until commit improves.

Learn how we migrated all Aspire docs from Learn to the new website aspire.dev learn

Read about new and exciting features now available in the Office Add-ins ecosystem for Ignite 2025. Learn about platform updates, developer experience improvements, and store enhancements.

Boost your testing workflow with GitHub Copilot testing for .NET, available now in Visual Studio. Automatically generate, build, and run high-quality unit tests for files, projects, or entire solutions.

This post shares how to work with the new Azure Developer CLI (`azd`) agents extension.

Agent 365 Interoperability equips any agent with apps and data to simplify human-agent workflows.

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

Shared memory is the copy-free solution.

Microsoft Ignite 2025 kicked off with a wave of announcements for Azure Cosmos DB and Azure DocumentDB, setting the tone for a week of innovation in cloud databases and AI. Here’s your one-stop summary of everything unveiled—and what to watch for in the sessions ahead. Major...

We are back with a fresh PowerToys release! This month brings a redesigned Advanced Paste experience with support for multiple AI model endpoints, a wave of improvements to Command Palette, and plenty of smaller upgrades across the utility suite. Grab the update by checking for updates...

At the start of this year, we released a new set of T-SQL AI features for embedding your relational data for AI applications. Today, we have brought those features to Azure SQL and SQL database in Microsoft Fabric. This post will help you get started using the new AI functions of Azure...

Learn how Visual Studio 2026 and GitHub Copilot app modernization upgrade .NET versions and frameworks, fix build issues, and migrate apps to Azure with less manual effort

In May, we talked about the evolution of GitHub Copilot from a coding assistant into an AI powered peer programmer. Since then, GitHub has taken a major step forward - becoming an open platform for agentic development, where Agent HQ enables developers to orchestrate any agent, anytime,...

Discover the new and improved Teams SDK, designed to help developers create even more powerful agents for Microsoft Teams.

In the past, moving to the next major version of Visual Studio could take hours, sometimes days, to recreate your dev environment the way you like it. Visual Studio 2026 makes it easier than ever to stay current with the latest productivity features, performance improvements, and security...

Agent 365 serves as the control plane for agents, providing organizations with a centralized location to manage agent identity, policies, observability, and lifecycle. 

The MSSQL Extension for VS Code continues to evolve, delivering features that make SQL development more integrated, more consistent, and more developer-friendly. In version v1.37.0, we’re announcing the Public Preview of Edit Data, Data-tier Application (DACPAC/BACPAC) export &...

GitHub Copilot is taking a major step forward with expanded, deeply integrated support for JetBrains and Eclipse — bringing a new generation of agentic, intelligent capabilities directly into your favorite Java IDEs. This release strengthens Copilot’s cross-IDE experience, unifies...

We are happy to share that DiskANN vector indexing is now in public preview across Azure SQL Database, Azure SQL Managed Instance, and SQL database in Microsoft Fabric. DiskANN is a cutting-edge algorithm for efficient vector similarity search, making it ideal for powering recommendation...

We’re excited to announce the public preview of Index Advisor for Azure DocumentDB (with MongoDB Compatibility). It is a built-in AI powered performance tuning assistant that helps you understand slow queries, diagnose inefficiencies, and automatically generate optimized index...

We’re thrilled to announce the general availability (GA) of the Azure Cosmos DB extension for Visual Studio Code! This powerful extension brings enterprise-grade database management directly into your development environment, making it easier than ever to build, test, and deploy...

We’re excited to announce two updates to Azure Cosmos DB fleets: Fleet pools – now generally available Fleet analytics – now in public preview Azure Cosmos DB fleets enables developers to build scalable, isolated, and cost-effective multi-tenant or Software as a Service...

We’re excited to announce the Public Preview of a significant enhancement to the Azure DocumentDB (with MongoDB compatibility) Migration extension for Visual Studio Code—introducing online migration capability! This update makes it easier than ever to migrate MongoDB workloads to...

  Azure DocumentDB, a fully managed MongoDB-compatible database service based on the open-source DocumentDB governed by the Linux Foundation, is now generally available. It was formerly known as vCore-based Azure Cosmos DB for MongoDB. Azure DocumentDB gives developers a...

We’re excited to announce that Cosmos DB in Microsoft Fabric and Cosmos DB Mirroring are now Generally Available, uniting your operational and analytical data in one platform. You can now analyze live Cosmos DB data directly in Fabric—no complex or costly ETL required....

We're excited to announce the Azure Cosmos DB MCP Toolkit in public preview. This open-source implementation of the Model Context Protocol (MCP) gives AI agents and LLMs direct, secure access to Azure Cosmos DB. The toolkit bridges intelligent applications and globally distributed...

SQL Server 2025 marks a major milestone in database innovation by introducing native support for VECTOR data types and vector functions. These are now fully available in the freshly released SQL Server 2025 RTM. This means you can store and process high-dimensional embeddings directly...

We’re excited to announce the General Availability (GA) of native Regex support in SQL Server 2025 and Azure SQL — a long-awaited capability that brings powerful pattern matching directly into T-SQL. This release marks a significant milestone in modernizing string operations and...

We’re excited to introduce new capabilities and performance improvements for vector and full-text search in Azure Cosmos DB. These updates make it easier for developers and architects to build semantic search experiences and generative AI applications on the world’s most scalable...

After a successful public preview, we’re excited to announce the General Availability (GA) of online migration from RU-based Azure Cosmos DB for MongoDB to Azure DocumentDB (with MongoDB compatibility). This capability makes migration fast, simple, and cost-free—all through the Azure...

What we've added for PQC, and how we got there.

Harkening back to a very old mail program.

This article is authored by Gurvinder Singh, Principal Cloud Engineer at The Kraft Heinz Company. ICYMI: Hear how Kraft Heinz built an AI-powered data lineage solution leveraging Azure DocumentDB hybrid search and graph querying capabilities - watch the Ignite session here: Move...

GitHub Copilot is evolving again—this time with deep, native integration for Xcode. We’re introducing a new generation of agent-driven capabilities designed to streamline workflows, accelerate development, and keep you focused on building great apps for Apple platforms. This update...

Private Marketplace for VS Code extensions now generally available. Read the full article

We are pleased to announce AddressSanitizer (ASan) support for the Microsoft C++ (MSVC) Build Tools for ARM64 targets. ASan is a runtime memory error detector that identifies difficult-to-find bugs with zero false positives and improves memory safety. More technical information on...

How Windows 365 extends Aspire to streamline multi-repo microservice development using microservice resources, emulators, automated seed data, and cloud-based end-to-end validation.

Learn about new F# 10 language features, performance upgrades, and tooling improvements shipping with .NET 10.

Learn what features are in C# 14, which ships as part of .NET 10.

Doing it on hard mode.

This guide shares a series of videos that walk you through setting up GitHub and GitHub Copilot end-to-end for your company. These are especially useful for organizations starting from scratch who want to leverage GitHub Copilot and are looking to get started. These videos were recorded...

They can send it back with their own WM_COPY­DATA message, or they can put it in an agreed-upon shared location.

Managing cloud resources often means juggling multiple tools, writing custom scripts, and switching contexts between your IDE and cloud management portals. These extra steps slow development and make it harder to build intelligent, secure applications efficiently. We’re excited to...

A celebratory announcement of what is new in OpenAPI.NET v2 and v3.

The November 2025 release brings new Pylance features including improvements to Copilot Hover Summaries and a Code Action to convert wildcard imports to explicit imports. Keep on reading to learn more!

Visual Studio 2026 introduces a refreshed user experience, thoughtfully crafted for clarity, accessibility, and a clean interface that feels right at home on Windows. This update is the result of extensive collaboration with developers and incorporates valuable feedback from the...

Not directly, but maybe indirectly.

Using AI‑generated tools like Stagehand with Microsoft's Playwright helps ensure a smooth user experience during modernization efforts such as Hyper Velocity Engineering and monolith-to-microservices migrations.

Refactoring a C++ codebase can often require tracking updates across various sections of multiple files to ensure accuracy and relevancy.  Historically, developers have relied on manual searches across a codebase and refactoring tools to perform these types of edits. However, with...

Long build times are one of the top pain points for C++ projects. If you’ve ever waited too long for a C++ build to finish, you know how much it can slow down your productivity. In past years, we introduced C++ Build Insights to help you analyze traces and find bottlenecks. However, we...

A few problems have reared their heads at every company where I’ve worked on C++ as a Software Engineer over the past 20 years. For the most part, those problems have nothing to do with the language and how it is used, but instead all the “other” stuff, like dealing with long...

Learn what is new in the Visual Studio Code October 2025 Release (1.106). Read the full article

Microsoft Ignite 2025 is the ultimate opportunity for developers to dive deep into what’s new with Azure AI Foundry. We curated the top sessions designed for hands-on learning, practical demos, and expert insights. Whether you’re building AI apps, orchestrating multi-agent systems, or...

Faster responses, a lower chance of rate limiting, and 10% off premium requests for paid users - auto picks the best available model for each request based on current capacity and performance. With auto, you don't need to choose a specific model. Copilot automatically selects the best one...

Preserving in-order while linearizing.

It's no surprise that Arm64 PCs hit a sweet spot for music creation and live performance. They are thin and light, have excellent battery life (I used a Surface Laptop 7 at the entire NAMM show and never had to charge it despite giving presentations and demos), great screens, USB-4 ports...

Get ready to level up your C++ productivity, because Visual Studio 2026 version 18.0 is now generally available! You can take advantage of the new features, bug fixes, and performance improvements in your production environment. This post describes what’s new for C++ developers,...

Aspire 13 is here with revamped JS and Python experiences, new AI-focused grations, and a new iteration of deployment tooling.

Today we are releasing patches that impact our self-hosted product, Azure DevOps Server. We strongly encourage and recommend that all customers use the latest, most secure release of Azure DevOps Server. You can download the latest version of the product, Azure DevOps Server 2022.2 from...

Dear developers, We’re thrilled to announce that Visual Studio 2026 is now generally available! This is a moment we’ve built side by side with you. Your feedback has helped shape this release more than any before. Since the introduction of the Insiders Channel in September, more...

Announcing the release of .NET 10, the most productive, modern, secure, intelligent, and performant release of .NET yet. With updates across ASP.NET Core, C# 14, .NET MAUI, Aspire, and so much more.

A recap of the latest servicing updates for .NET and .NET Framework for November 2025.

Replacing bytes with the greatest of care.

The trouble with disambiguation.

Azure Cosmos DB is engineered from the ground up to deliver high availability, low latency, throughput, and consistency guarantees for globally distributed applications. As mission-critical systems increasingly rely on Cosmos DB for performance at scale, understanding and configuring...

The USB MIDI 1.0 specification was released in the late 90s around the same time that PCs were starting to move from rectangular beige boxes to things like fake-silvered bulbous plastic shapes. At this point, some of the code in Windows to support USB MIDI 1.0 has become intergenerational...

A new release of the Microsoft build of Go is now available for download.

Reducing latency by 50% and scaling intelligent CX for SMBs This article was co-authored by Sergey Galchenko, Chief Technology Officer, IntelePeer, and Subhash Ramamoorthi, Director, IntelePeer AI Hub. ICYMI: Discover how IntelePeer enhances agent intelligence and powers their...

Changing the tree structure to make it easier to delete.

Practical patterns for designing scalable, high-performing multi-agent systems—grounded in real implementation experience.

vcpkg, an open-source C/C++ package manager maintained by Microsoft, is increasingly recognized as a leading dependency management solution. As an enterprise-grade tool, it enables organizations to streamline library imports, reduce duplication, and support flexible, reproducible builds...

Microsoft Ignite 2025 is your opportunity to explore how Azure Cosmos DB, Cosmos DB in Microsoft Fabric, and DocumentDB power the next generation of intelligent, planet-scale applications. Whether you’re building real-time analytics pipelines, optimizing MongoDB-compatible...

If you are on Windows 11 (or Windows 10 for the UAD issue) and recently had either of these two issues, please read on: You use a Universal Audio (UAD) device and found that all or most of your MIDI devices are no longer recognized in your DAW in Windows 11 or Windows 10 You have a new...

Making one as you go.

Ghost text suggestions are now open source as part of the Copilot Chat extension - the second milestone in making VS Code an open source AI editor. Read the full article

Today, we’re excited to share our public roadmap, which outlines the next steps in evolving Visual Studio with AI-powered agentic experiences. With every month, we aim to deliver smarter, faster, and more intuitive tools that enhance your coding experience. Disclaimer: The items...

Learn how Microsoft Copilot Studio uses .NET to provide a consistent AI agent execution across platforms, including on the web via WebAssembly.

First assume that you have a parent pointer.

Azure Cosmos DB’s geospatial capabilities just got even better! We're excited to announce that you can now sort query results by distance using an ORDER BY ST_DISTANCE(...) clause in the NoSQL query language while leveraging a spatial index. Why is this important? Previously,...

Azure Cosmos DB for NoSQL now features Query Advisor, designed to help you write faster and more efficient queries. Whether you’re optimizing for performance, cost, or scalability, Query Advisor provides actionable recommendations to help you get the most out of your data. Why Query...

Agents took over VS Code in 2025. We released agent mode for VS Code, integration for the Copilot coding agent, and the new GitHub Copilot CLI. But Copilot is not the only agent game in town. There are now more coding agents than ever, including options from OpenAI and Anthropic. ...

This blog post summarizes changes to the vcpkg package manager as part of the 2025.10.17 registry release, the 2025-10-10 and 2025-10-16 tool releases, as well as changes to vcpkg documentation throughout October. This month’s updates includes partial support for Visual Studio 2026 and...

This post walks through how to implement "build once, deploy everywhere" patterns using Azure Container Apps with the new azd publish and layered infrastructure features in Azure Developer CLI v1.20.0. You'll learn how to deploy the same containerized application across multiple...

The path from prototype to production for AI/ML workloads is rarely straightforward. As data pipelines expand and model complexity grows, teams can find themselves spending more time orchestrating distributed compute than building the intelligence that powers their products. Scaling from...

The biggest .NET event of the year is just one week away! Join us November 11-13 for .NET 10 and Visual Studio 2026, plus a Student Zone on November 14th.

Technology is accelerating faster than ever, and developers are once again at the helm, shaping the future of applications, intelligence, and enterprise systems. With the rise of large language models (LLMs), agent-oriented architectures, and AI-driven development paradigms, Java...

Reportedly Microsoft's first hardware product.

Microsoft has long provided interoperability information, interfaces, and tools to help our vibrant ecosystem of partners integrate their products and services with Microsoft 365 productivity applications. This ecosystem includes communication and collaboration solution providers...

Microsoft is launching a centralized developer resource page that consolidates interoperability and data portability information, tools, and feedback channels to help partners and customers use Microsoft 365 more effectively.

Designed for its original use case.

Unlock 360° Success with the Cosmos DB Engineering Team Are you ready to elevate your cloud data practice and drive innovation for your customers? The Azure Cosmos DB Partner Acceleration Program—spearheaded by the Cosmos DB Engineering Team—offers a unique, end-to-end journey for...

Why Financial Services Organizations Should Consider Expanding to Other Azure Regions for New Workloads As a Cloud Architect, I work closely with financial services organizations to help them unlock the full potential of Azure innovations. One of the most impactful strategies I recommend...

Another year and another CppCon is all wrapped up! Microsoft was pleased to once again be an exhibitor and to have several of our employees present sessions at the conference. Here are my major takeaways from the keynotes, sessions, conversations, and the general vibe. AI tooling is...

At this year’s GitHub Universe, we set out to answer a simple question: What would it take to go from an idea to production in under 30 minutes – using only natural language, your editor, and AI? On stage, we built a cloud-native, intelligent app from scratch using Visual...

Aspire goes polyglot. Explore the new Aspire.dev — a unified, open-source platform for building, observing, and deploying distributed apps in any language.

We're thrilled to invite you to one of the most exciting events in the .NET ecosystem: .NET Conf. It runs from November 11th through the 13th and you’re invited! This annual virtual conference is a must-attend for developers, architects, and enthusiasts looking to level up their...

To disappear, such as for the year-end holidays.

This blog outlines best practices for optimizing Speech-to-Text (STT), Text-to-Speech (TTS), and Custom Keyword Recognition in Azure Speech Services, helping developers build more accurate and responsive voice-enabled applications.

With Visual Studio 2026 version 18.0 getting closer to General Availability (GA), we want to share with you how you can upgrade your projects from your current versions of Visual Studio and the Microsoft C++ (MSVC) Build Tools to the latest versions. The new IDE ships with the v145...

In this blog, we'll discuss how Azure Cosmos DB is engineered for resilience and how it ensures high availability when failures happen in the cloud. Why does it matter ? The only thing that’s constant in distributed systems is failures. No cloud platform is immune to failures —...

This post shares how to set up the GitHub Copilot coding agent integration with Azure resources and services by using the Azure Developer CLI (`azd`) extension.

An unfortunate error code collision, but the explanatory text leads the way.

SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This blog series kicks off our journey into the next evolution—transparent, community-driven, and built for the AI era. Let’s shape what’s next, together.

The October 2025 update for Visual Studio 2022 (v17.14) is now available. In this month, we are bringing you improvements to model choices and agentic flows.  New Models  We now have Claude Sonnet 4.5  and Claude Haiku 4.5 available in the chat window. This means the latest...

Introducing Dev Proxy v1.3 with new plugins for inspecting and debugging API requests, along with enhanced permissions analysis and improved OpenAPI spec generation for complex testing scenarios.

Yesterday at GitHub Universe, GitHub announced support for custom agents. Custom agents are specialized configurations with custom prompts and context that focus Copilot on specific development tasks. On the C++ team, we have a similar goal: Provide differentiated capabilities that...

Hello Java customers! We are happy to announce the latest July 2025 patch & security update release for the Microsoft Build of OpenJDK. Download and install the binaries today. OpenJDK 25.0.1 OpenJDK 21.0.9 OpenJDK 17.0.17 OpenJDK 11.0.29 Check our release notes...

In the next few months, Microsoft will be removing the legacy authentication protocol known as IDCRL (Identity Client Run Time Library) in SharePoint.

AI is changing how we build software, but it also introduces new challenges: how do you know if your AI application is giving the right answers and producing the right outcomes? Evaluations (often referred to simply as ‘evals’) provide a structured way to measure quality so you can...

The previewImageUrl property is no longer returned for file attachment items.

You don't have to understand it, but you should be able to extract data from it.

We’re excited to announce that MCP Registry and Allowlist Controls in GitHub Copilot for Xcode are now available in public preview in pre-release builds. These capabilities help Xcode developers discover, install, and manage Model Context Protocol (MCP) servers directly in the IDE,...

Introducing C# Expert and WinForms Expert: experimental custom agents that help .NET developers write better code with GitHub Copilot.

Today marks a major milestone for agentic development on Azure: the stable release of the Azure MCP Server 1.0!

MCP registry and allowlist controls for GitHub Copilot in JetBrains IDEs and Eclipse are now available in public preview in nightly/pre-release builds. What’s new MCP Registry An MCP Registry is a directory of Model Context Protocol (MCP) servers. For users of JetBrains IDEs and...

If you're looking for a clear, no-nonsense path into generative AI on Java, this series is for you.  Microsoft's Java and AI for Beginners video series is a set of short tutorials that introduce the concepts, tooling, and patterns you need to get started at a pace that respects your...

This article was co-authored by Zack Rossman, Staff Software Engineer, Veeam; Ashlie Martinez, Staff Software Engineer, Veeam; and James Nguyen, Senior Principal Cloud Solution Architect, AI/ML, Microsoft. ICYMI: See how Veeam built their AI-powered data discovery solution with...

Ported bit by bit.

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

I mean, it's what you asked it to do.

👋everyone! Shree here. I'm sure many of you have had a similar chat with someone you know. We often hesitate to celebrate our achievements because of social perceptions around self-promotion. I believe it’s time to challenge that mindset. Building a personal site is about...

It used to be there because PropertyValue started out as the fundamental variant type before shifting focus to being the fundamental boxed type.

Announcing Sponsorship on NuGet.org - An easy way to recognize package maintainers and grow the NuGet community stronger!

Step-by-step review on how to upgrade your .NET AI chat app to Microsoft Agent Framework for better architecture, tool integration, and intelligent reasoning.

If all you're doing is setting properties, you can do it any way you like.

The Architectural Imperative: Why Multi-Agent Orchestration is Essential In modern enterprise AI systems, the scope and complexity of real-world business challenges quickly exceed the capabilities of a single, monolithic AI Agent. Facing tasks like end-to-end customer journey management,...

How to leverage Testcontainers for integration testing

Developers love GitHub Copilot for its instant, intelligent code suggestions. But what if those suggestions could also reflect your specific database and workload patterns? That’s now possible with a new feature in Azure Cosmos DB for VS Code. Starting today, when you connect to...

Quick prompts are great for small fixes, but they fall short on big projects. You end up rewriting instructions, tweaking them constantly, and hoping the model stays on track. It gives Copilot a visible, structured path to follow, one that updates as it works and keeps you in control at...

Introduction Leveraging OpenAI for semantic searches on structured databases like Azure SQL enhances search accuracy and context-awareness, providing more relevant and insightful results. This example showcases the use of Azure SQL for storing and searching data with AI. By...

It's quite a bit faster, though maybe you don't care.

Learn how the new Language Model Chat Provider API in VS Code is enabling more model choice and extensibility for chat experiences via the Bring Your Own Key experience. Read the full article

We have great news for extension users and developers: Visual Studio 2026 is introducing an extension compatibility model designed specifically to make your life easier. Our top priority is to ensure that your extensions continue to work seamlessly across Visual Studio releases - with no...

You're always a year away.

We’ve made a small but important change in the Azure portal for Azure Cosmos DB to make it easier to manage your account-level throughput. The “Cost Management” section has been renamed to “Account Throughput” and can now be found under the Settings section of your Azure...

Just for fun.

We're thrilled to announce the stable release of Azure Cosmos DB Python SDK version 4.14.0! This release brings together months of innovation and collaboration, featuring ground-breaking capabilities that have been battle-tested in production environments. Many of these features were...

Whether you’re a machine learning practitioner, app developer, or just curious about the latest in AI, this guide shows how you can quickly boost image classification accuracy using cutting-edge Vision-Language Models (VLM) on Azure—no deep learning expertise required. In this...

To ensure our hosted agents in Azure Pipelines are operating in the most secure and up-to-date environments, we continuously update the supported images and phase out older ones. In October 2024, we announced support for Ubuntu-24.04. Soon, we plan to update the ubuntu-latest image to map...

Azure Cosmos DB is Microsoft’s globally distributed, multi-model database service, trusted for mission-critical workloads that demand high availability, scalability, and low latency. In this post we will discover how to maximize the full potential of Azure Cosmos DB using Azure Advisor...

We’re excited to introduce a new capability that simplifies Dev Box setup—enabling platform engineers and project admins to specify images and SKUs directly when configuring Dev Box pools, without needing to create Dev Box definitions at the Dev Center level. 🔄What’s...

If the callback requires copyability.

We are excited to share updates on the Microsoft 365 Developer Program with new capabilities and upcoming changes.

NASA’s vast archive of Earth observation data has long been a cornerstone for scientific discovery, environmental monitoring, and global sustainability efforts. Now, Microsoft has made it even easier for researchers, developers, and decision-makers to access and utilize this critical...

Passing the obligation onward.

Cloud and Infrastructure teams can manage secrets on Azure KeyVault with a Tagging strategy to perform automations.

New month, new release! This one’s packed with quality-of-life improvements, performance boosts, and a bunch of long-standing community requests finally checked off the list — all while keeping the focus on fundamentals like speed and reliability! Get the update by checking for...

Microsoft works with the fsspec open-source community to enhance adlfs. This update delivers faster file operations and improved reliability for AI workloads that connect to Azure Blob and Data Lake Storage.

It's more important to clean up when you leave.

A recap of the latest servicing updates for .NET and .NET Framework for October 2025.

.NET 10 Release Candidate 2 focuses on final quality, reliability, and stabilization across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more.

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

Azure AI Foundry makes fine-tuning smarter, faster, and more accessible than ever. Whether you’re building agents that reason, tools that adapt, or workflows that scale, this is your launchpad for customizing models to solve real business challenges. Dive in to discover best practices,...

Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with Microsoft.

A new release of the Microsoft build of Go is now available for download.

As part of our ongoing commitment to security and modernization, we’re updating outdated authentication mechanisms used by older versions of clients reliant on our older Visual Studio client libraries. For full details on all known impacted clients, refer to the official announcement...

You copied the green screen.

Remove it from the equation.

Today we are excited to take our local MCP Server for Azure DevOps out of preview 🥳. Since the initial preview announcement, we've worked closely with early adopters and the community to incorporate feature suggestions and feedback. We’ve improved login and authorization, added and...

The October 2025 release of the Python and Jupyter extensions for Visual Studio Code are now available. This release includes improvements to the Python Environments extension, Copy Test ID functionality, and enhanced environment activation when using Copilot Chat. Keep on reading to learn more!

The fact that a property has been set does not by itself trigger functionality.