Microsoft
Developer Blogs

Learn what is new in the Visual Studio Code November 2025 Release (1.107). Read the full article

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.

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.

Previewing the JavaScript/TypeScript Modernizer for VS Code Insiders 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...

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, from...

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...

Learn how to implement age verification in your .NET MAUI apps with our new cross-platform sample supporting Google Play Age Signals, Apple Declared Age Range, and Windows Age Consent APIs.

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.