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Highlights

Build your own claw and agent harness with Microsoft Agent Framework
What does it take to build your own "claw" - a capable, CLI-style agent that can plan, use tools, remember things, and safely act on your behalf? Coding agents and assistants like these can feel like magic, but underneath they are an agent harness: a loop around a language model wired up...
Read moreClick to read more about this postIn memory of the man who put red and green squiggles under words
Starting in Word and expanding to nearly every other word processor, and even things that aren't word processors.
Read moreClick to read more about this postStop overloading your skills
You built a skill for your technology. API references, authentication flows, SDK patterns, error handling, version info, all packed into one skill. The agent calls it, gets all that context, and generates code. The kicker? You've just wasted a lot of tokens.
It already knows
Models have...
Read moreClick to read more about this postLatest posts

Jun 24, 2026
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Visual Studio Code 1.126

Learn what's new in Visual Studio Code 1.126 (Insiders)
Read the full article
VS Code Blog
Jun 24, 2026
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Azure Functions MCP Extension: What's New at Build 2026

A roundup of what shipped in the Azure Functions MCP extension since preview: resource and prompt triggers, MCP Apps, built-in MCP authentication, structured and rich content, fluent .NET configuration APIs, and what is coming next.
Azure SDK Blog

Jun 24, 2026
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When the model has never seen your code

This is the fifth article in a series about Agent Experience (AX): the practice of making AI coding agents work correctly with your technology. The series covers what you can and can't control in the agent stack, how to measure whether your extensions are helping or hurting, and how to...
Microsoft for Developers

Jun 23, 2026
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Streamline C++ Code Intelligence Setup in Copilot CLI

C++ developers can now bring IDE-style semantic intelligence into Copilot CLI with less setup. The C++ language server plugin supports richer code navigation, diagnostics, symbol understanding, and code changes by using the same build context your compiler does.
That build context...
C++ Team Blog

Jun 23, 2026
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Add vs Stage and Register
As previously mentioned to 'install' a package, as people think of the term, Windows actually performs two separate operations: staging and registration.
To oversimplify:
Staging puts the package content on disk. At this point the package is present, but inert and unused.
Registering...
Inside MSIX

Jun 23, 2026
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Microspeak elaborated: Isn't escrow just a release candidate by another name?

Yes, but the name is a psychological trick.
The Old New Thing

Jun 23, 2026
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Going beyond text in Microsoft 365 Copilot - Introducing SharePoint Copilot Apps

Microsoft 365 Copilot is brilliant with words - but work isn't only words. Introducing SharePoint Copilot Apps: bring rich, interactive UX components straight into the Copilot canvas, built with any JavaScript stack your team already knows. Reuse your existing SPFx investments across Copilot, SharePoint, and Teams - no new platform, no infrastructure, no lock-in.
Microsoft 365 Developer Blog

Jun 22, 2026
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Azure SDK Release (May 2026)
Azure SDK releases every month. In this post, you'll find this month's highlights and release notes.
Azure SDK Blog

Jun 22, 2026
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Meet your agent harness and claw
Part 1 of Build your own claw and agent harness with Microsoft Agent Framework.
In the overview we said a "claw" is really just an agent harness: a loop around a model, wired up with tools, planning, memory, and more. In this first post we stand up that loop and give our personal...
Microsoft Agent Framework

Jun 22, 2026
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Build your own claw and agent harness with Microsoft Agent Framework
What does it take to build your own "claw" - a capable, CLI-style agent that can plan, use tools, remember things, and safely act on your behalf? Coding agents and assistants like these can feel like magic, but underneath they are an agent harness: a loop around a language model wired up...
Microsoft Agent Framework

Jun 22, 2026
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Models don't have preferences, they have context

You open a fresh chat, type "What framework should I use for a web app?", and the model says "React." You screenshot it, share it, and write "Claude prefers React." It gets engagement. People nod along. A few reply with their own results. And now we have a consensus: Claude prefers React....
Microsoft for Developers

Jun 22, 2026
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In memory of the man who put red and green squiggles under words

Starting in Word and expanding to nearly every other word processor, and even things that aren't word processors.
The Old New Thing

Jun 22, 2026
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How to Use Deep Agents with Azure Cosmos DB – Plan, act, and verify against operational data

Deep Agents is an agent harness built on LangGraph, for agents that need to work through a task over many steps instead of a single LLM call. The agent runs tools, looks at the results, and uses that to pick the next one, keeping a todo list as it goes. On top of that loop the harness...
Azure Cosmos DB Blog

Jun 22, 2026
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Retirement of Azure DevOps issuer in Workload identity federation service connections

We are announcing the deprecation of the Azure DevOps issuer in workload identity federation (WIF) service connections, with planned retirement on July 1, 2027. The Azure DevOps issuer uses the https://vstoken.dev.azure.com prefix in federated credentials. This change is part of...
Azure DevOps Blog

Jun 21, 2026
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Copilot 在 JetBrains IDE:功能更新与 Claude 作为 Agent 提供方预览

本次更新为 GitHub Copilot for JetBrains IDEs 带来了对来自 GitHub 的组织和企业级 agent 的支持,让你可以在 Copilot CLI 会话中排队和引导消息,引入了全新的 agent 调试日志摘要视图,并将 Claude 作为 agent...
Java Blog in Chinese

Jun 19, 2026
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What does it mean when the bottom bit of my HMODULE is set?

A special kind of
HMODULE.The Old New Thing

Jun 19, 2026
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Separating Deterministic Extraction from AI Inference in Industrial Summarization
When 100% of our prototype outputs were valid JSON but 0% met the data contract, we discovered the LLM was doing work that software should own. A field classification exercise and 4-pass pipeline brought schema compliance from 0% to 100%.
ISE Developer Blog

Jun 18, 2026
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Meet the Agent Academy Hackathon Winners

From May 12 to June 2, 2026, builders from around the world put their Agent Academy learning to the test by designing, building, and shipping real, working AI agents with Copilot Studio. After two weeks of judging, we’re thrilled to announce the Agent Academy Hackathon winners.
🏆...
Power Platform Developer Blog

Jun 18, 2026
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Outcome-driven learning systems: Enterprise RL with OpenEnv and Foundry

We shipped a lot at Build 2026: hosted agents, Toolboxes, Foundry IQ, Memory, Managed Compute, fine‑tuning, Frontier Tuning, and a new evaluation and optimization stack. Read as a feature list, it is a lot to hold in your head. So here is a simpler way to see it: these are the parts...
Microsoft Foundry Blog

Jun 18, 2026
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DirectX Dump Files Preview Now Available!

At this year’s GDC, we shared our vision for bringing console‑level GPU developer tools to Windows. As part of that announcement, we introduced DirectX Dump Files as a major step forward in GPU crash debugging on Windows.
Today, we’re excited to make our DirectX Dump Files public...
DirectX Developer Blog

Jun 18, 2026
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PIX 2606.18-preview: DirectX Dump Files and more

Today we released PIX 2606.18-preview, available here.
This PIX release coincides with the preview availability of DirectX Dump Files (.dxdmp). The PIX UI can open DirectX Dump Files directly for analysis, and the PIX API can be used to analyze them programmatically. Please visit the...
PIX on Windows

Jun 18, 2026
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Stop overloading your skills

You built a skill for your technology. API references, authentication flows, SDK patterns, error handling, version info, all packed into one skill. The agent calls it, gets all that context, and generates code. The kicker? You've just wasted a lot of tokens.
It already knows
Models have...
Microsoft for Developers

Jun 18, 2026
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Why doesn't GetLastInputInfo() return info for the user I'm impersonating?

It doesn't care about impersonation, says so on the tin.
The Old New Thing

Jun 18, 2026
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Announcing TypeScript 7.0 RC

Today we are excited to announce the Release Candidate of TypeScript 7.0!
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...
TypeScript

Jun 18, 2026
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Use your own language model key in VS Code

Learn how to use bring your own key (BYOK) in VS Code to add models from providers like Azure, Anthropic, Gemini, OpenAI, Huggingface, OpenRouter, or use a local model with Ollama, Foundry Local, and more.
Read the full article
VS Code Blog

Jun 17, 2026
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Visual Studio Code 1.125

Learn what's new in Visual Studio Code 1.125
Read the full article
VS Code Blog

Jun 17, 2026
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Intelligent Terminal 0.1.1 is here: bash support, new slash commands, and more customization

We're back with the first servicing release of Intelligent Terminal! This update brings auto error detection to Bash and WSL, a new /fix command for on-demand help, an on-the-fly /model picker, a customizable agent pane, and Windows 10 support, along with a round of bug fixes and...
Windows Command Line

Jun 17, 2026
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AI-Powered MSBuild Investigation with the Microsoft Binlog MCP Server
Yuliia,
Jan
Diagnose MSBuild build failures and performance issues with AI using the new Microsoft Binlog MCP Server - 15 specialized tools that let your AI assistant investigate binary logs.
.NET Blog

Jun 17, 2026
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When your agent extensions fight each other

This is the fourth article in a series about Agent Experience (AX): the practice of making AI coding agents work correctly with your technology. The series covers what you can and can't control in the agent stack, how to measure whether your extensions are helping or hurting, and how to...
Microsoft for Developers

Jun 17, 2026
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Windows stack limit checking retrospective, follow-up

Choosing the register to use to pass the desired stack allocation size.
The Old New Thing

Jun 17, 2026
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Azure Backup for Azure Cosmos DB Public Preview Adds Immutable Backups and Long-Term Retention
Hans,
Jay
Azure Backup for Azure Cosmos DB Public Preview Adds Immutable Backups and Long-Term Retention
Picture the first few hours after a serious data incident. A production application is down. Security teams are still trying to understand what happened. Application owners need to know...
Azure Cosmos DB Blog

Jun 17, 2026
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Improving token efficiency for GitHub Copilot in VS Code

Learn how we're improving token efficiency for GitHub Copilot to reduce costs and latency for VS Code users.
Read the full article
VS Code Blog

Jun 16, 2026
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Boosting Adobe Photoshop’s Performance with MSVC and SPGO
Boosting Adobe Photoshop’s Performance with MSVC and SPGO
Adobe and Microsoft worked together to improve Photoshop performance and responsiveness on Windows by combining MSVC’s peak-performance build settings with Sample-based Profile-Guided Optimization (SPGO). The collaboration...
C++ Team Blog

Jun 16, 2026
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Aspire in VS Code: the 13.4 developer loop

Aspire 13.4 brings more of the local development loop into VS Code: AppHost CodeLens actions, live resource state, dashboard shortcuts, typed resource command prompts, TypeScript AppHost support, and multi-language debugging.
Aspire Blog

Jun 16, 2026
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Third Rule of MSIX
MSIX has several core principles underlying its design and implementation. Engineers half-jokingly call these The Rules of MSIX. The Third Rule of MSIX is arguably the most important and certainly the most foundational:
Package identity is unique across space and...
Inside MSIX

Jun 16, 2026
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Competing against yourself

You shipped a new CLI: better developer experience, modern architecture, and optimized for agents. You deprecated the old one, updated the docs, and blogged about it. Developers are migrating. Then someone asks an AI coding agent to scaffold a project, and the agent... uses the old...
Microsoft for Developers

Jun 16, 2026
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Retrofitting the WM_COPYDATA message onto Windows 3.1

It was carefully designed to be trivial.
The Old New Thing

Jun 16, 2026
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Announcing General Availability of the Azure Cosmos DB Built-in Connector for Logic Apps Standard

Today, we're excited to announce the general availability of the Azure Cosmos DB built-in connector for Azure Logic Apps Standard. This connector gives you a native, high-performance way to integrate Azure Cosmos DB into your Standard logic app workflows, with better throughput, lower...
Azure Cosmos DB Blog

Jun 15, 2026
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GitHub Copilot for JetBrains is moving to Copilot CLI as the default agent harness
Copilot CLI is becoming the default agent harness in GitHub Copilot for JetBrains, and our local harness will be deprecated.
This change provides greater consistency across all GitHub Copilot surfaces and is an important step toward faster feature parity and higher-quality results in...
Microsoft for Java Developers

Jun 15, 2026
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Make Visual Studio look the way you want

Themes are personal. Some of us live in dark mode, some swear by high contrast, and some of us have very strong opinions about that one shade of blue from years ago. The new themes in Visual Studio 2026 are built on Fluent, which gives us a much more consistent and accessible foundation,...
Visual Studio Blog

Jun 15, 2026
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The time the x86 emulator team found code so bad that they fixed it during emulation

Offensive content in the eyes of a software engineer.
The Old New Thing

Jun 12, 2026
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GitHub Copilot modernization for C++ is out of preview

GitHub Copilot modernization for C++ is out of preview as of Visual Studio 2026, helping you upgrade your MSVC Build Tools with an AI-guided workflow.
C++ Team Blog

Jun 12, 2026
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How can I schedule work on a thread pool with low latency?

The thread pool is designed for throughput, not latency.
The Old New Thing

Jun 12, 2026
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Orchestration Patterns for Multi-Agent Systems: Performance and Trade-offs
Real-world lessons from evolving a production chatbot into a coordinator-based multi-agent architecture, including performance trade-offs for enterprise-scale agent reuse.
ISE Developer Blog

Jun 11, 2026
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MSVC Build Tools Preview updates - June 2026
Try the latest updates to MSVC Build Tools Preview
C++ Team Blog

Jun 11, 2026
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June Patches for Azure DevOps Server

We are releasing new patches for our self‑hosted product, Azure DevOps Server. We strongly recommend that all customers stay up to date with the latest, most secure version of Azure DevOps Server.
The most recent release, Azure DevOps Server, is available on the download page.
The...
Azure DevOps Blog

Jun 11, 2026
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Migrating EWS notifications to Microsoft Graph
Migrating from the Exchange Web Services (EWS) notification framework, which supports push, pull, and streaming notification types — to the Microsoft Graph subscription model represents a fundamental transition toward a unified, stateless, and event-driven framework.
Microsoft 365 Developer Blog

Jun 11, 2026
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Your agent just scaffolded a project from 2020

Your agent ran a scaffold command. Project generated, dependencies resolved, no errors. Everything looks fine. Except it's based on the project structure from 2020, and neither you nor the agent noticed.
How npx picks the right-but-wrong version
When an agent scaffolds a project or runs...
Microsoft for Developers

Jun 11, 2026
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Windows App Development CLI v0.3.2 — bundling support, smarter initialization, and more

Windows App Development CLI v0.3.2 is here! This release brings MSIX bundle support for multi-architecture packaging, a smarter winapp init experience that auto-detects your projects, higher quality UI screenshots, and a handful of reliability fixes across the board. Get the update by...
#ifdef Windows

Jun 11, 2026
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Review pull requests without leaving Visual Studio

Pull request integration in Visual Studio has been one of the most requested Git features. Developers have been asking for a way to open a PR, inspect the changes, discuss feedback, and finish the review without switching to the browser. The feedback on that request has played a big role...
Visual Studio Blog

Jun 11, 2026
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Copilot Autofix for GitHub Advanced Security for Azure DevOps

Over the last few years, we've encouraged customers to move their repositories from Azure Repos to GitHub, where the newest AI-powered and agentic development experiences land first.
Migrating isn't equally simple for everyone. A move to GitHub can range from straightforward to a...
Azure DevOps Blog

Jun 11, 2026
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Understanding the rationale behind a rule when trying to circumvent it

I mean, technically I didn't do it.
The Old New Thing

Jun 10, 2026
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Agents League Hackathon 2026 - Enterprise Agents

From declarative agents for Microsoft 365 Copilot to fully autonomous multi-agent systems orchestrating complex workflows, developers now have the power to redefine how work gets done. If you're ready to push those boundaries, Agents League Hackathon 2026 is your stage.
What is...
Microsoft 365 Developer Blog

Jun 10, 2026
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Visual Studio Code 1.124

Learn what is new in Visual Studio Code 1.124
Read the full article
VS Code Blog

Jun 10, 2026
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Is your agent extension actually working?

This is the third article in a series about Agent Experience (AX): the practice of making AI coding agents work correctly with your technology. The series covers what you can and can't control in the agent stack, how to measure whether your extensions are helping or hurting, and how to...
Microsoft for Developers

Jun 10, 2026
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Stop skillmaxxing, save your tokens

You built a dozen skills for your technology: authentication, CRUD, error handling, deployment, testing, monitoring. Then you installed a cloud platform bundle with 15 more covering diagnostics, storage, compliance, and cost optimization. A design suite. A marketing pack. Document...
Microsoft for Developers

Jun 10, 2026
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Join us for .NET Day on Agentic Modernization Livestream

Announcing the .NET Day of Agentic Modernization Livestream
.NET Blog

Jun 10, 2026
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Spec-Driven Development: A Spec-First Approach to AI-Native Engineering

AI has made software delivery faster, but speed alone does not guarantee better outcomes. As teams adopt AI-native development, the real challenge is keeping requirements, design, implementation, and validation aligned so the final result still reflects the original intent. Spec-Driven...
Microsoft for Developers

Jun 10, 2026
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What's the opposite of ClipCursor that lets me exclude the cursor from a region?

There is no such feature, but you can just exclude it virtually.
The Old New Thing

Jun 9, 2026
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PowerToys 0.100 is here: new Shortcut Guide, Command Palette improvements and much more!

We're back with a fresh PowerToys release! This month introduces the brand-new Shortcut Guide, a major Command Palette update with the new Extension Gallery and multi-monitor Dock support, and a wave of improvements to Power Display. We've also upgraded PowerToys to .NET 10, improved...
Windows Command Line

Jun 9, 2026
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.NET 11 Preview 5 is now available!

Find out about the new features in .NET 11 Preview 5 across the .NET runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and more!
.NET Blog

Jun 9, 2026
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.NET and .NET Framework June 2026 servicing releases updates
Rahul,
Tara
A recap of the latest servicing updates for .NET and .NET Framework for June 2026.
.NET Blog

Jun 9, 2026
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Distributed multi-agent systems with Aspire and Microsoft Agent Framework

Learn how Aspire, Microsoft Agent Framework, and Microsoft Foundry model, run, observe, and publish a distributed multi-agent AlpineAI ski resort demo.
Aspire Blog

Jun 9, 2026
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ICYMI: Inside the Microsoft Agent Framework: How we designed a layered SDK

In case you missed it, the Command Line blog was launched last week and has a great article (by yours truly) about our SDK design philosophy with Microsoft Agent Framework. Check it out: Inside the Microsoft Agent Framework: How we designed a layered SDK
Developers are...
Microsoft Agent Framework

Jun 9, 2026
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Staging Part 2 - Disk Space Optimization
"Disk space optimizations" is one of the key features of MSIX:
Disk space optimizations. With MSIX there is no duplication of files across apps and Windows manages the shared files across apps. The apps are still independent of each other so updates will not impact other apps that...
Inside MSIX

Jun 9, 2026
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Copilot Code Reviews for Azure Repos
Dan,
Andrew
🚨 Attention: We are accepting a final round of preview requests, with those organizations scheduled for enablement beginning the second week of July.
Requests submitted after July 3 will not be accepted into the preview program.
Over the last several...
Azure DevOps Blog

Jun 8, 2026
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Microsoft Build 2026 recap: vision, launches, and top sessions

Catch up on Microsoft Build 2026 with the vision lead-off, top developer announcements, and must-watch sessions across the Microsoft developer ecosystem.
Microsoft for Developers

Jun 8, 2026
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.NET at Microsoft Build 2026: Must watch sessions

Catch up on all the .NET sessions from Microsoft Build 2026 covering .NET 11, union types in C#, AI building blocks, the agentic web, .NET MAUI, and more!
.NET Blog

Jun 8, 2026
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Enterprise Live Migrations: Moving from Azure DevOps Repo to GitHub with minimal disruption
Soo,
Bhuvan
Over the last several years, we’ve encouraged customers to move their repositories from Azure Repos to GitHub to take advantage of the latest AI-powered and agentic development experiences.
For many enterprise teams, however, migrating at scale comes with real constraints. Traditional...
Azure DevOps Blog

Jun 8, 2026
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Rotation revisited: Shuffling more than three blocks, and other small notes

Generalizing the shuffle to arbitrary numbers of blocks.
The Old New Thing

Jun 5, 2026
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Rotation revisited: Avoiding having to calculate the gcd when doing cycle decomposition

Math is hard. Let's go counting!
The Old New Thing

Jun 4, 2026
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What's New in vcpkg (May 2026)

This release includes major library updates for Boost 1.91, Qt 6.11, and OpenCASCADE 8.0, along with 27 new ports and over 500 port updates.
C++ Team Blog

Jun 4, 2026
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Frameworks only matter when they force decisions
davidwright,
Arnaud,
Suzanne
Frameworks mean nothing, until they change what gets built!
In this article we discuss how Git-Ape turns architecture and governance into delivery controls on Azure because, if frameworks do not shape delivery decisions, they are just decoration.
Cloud teams do not have a...
All things Azure

Jun 4, 2026
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Aspire Multi-repo Rollout at Scale with Agentic AI

This is part 2 blog of the windows 365 integration journey with Aspire. This blog focus to show how Windows 365 scaled Aspire adoption with reliability patterns and an agentic AI rollout system across 50+ repos.
Aspire Blog

Jun 4, 2026
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Rotation revisited: Cycle decomposition in clang's libcxx

Rotating in the minimum number of steps by performing cycle decomposition.
The Old New Thing

Jun 4, 2026
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Accelerate Edge AI Development with Foundry Local
samkemp,
Emma,
Inbal
Why edge AI development is still hard
AI is no longer confined to cloud experiments. Developers are increasingly expected to deliver AI inside apps, devices, and edge systems where responsiveness, privacy, resilience, and local control are essential. But building those experiences for...
Microsoft Foundry Blog

Jun 4, 2026
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How we Decide Between Keyword and Hybrid Search: 5 Enterprise Evaluation Criteria
A data-driven framework we use in enterprise deployments to decide between vector-only keyword and hybrid search, based on five measurable evaluation criteria.
ISE Developer Blog

Jun 3, 2026
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Visual Studio Code 1.123

Learn what's new in Visual Studio Code 1.123
Read the full article
VS Code Blog

Jun 3, 2026
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Build 2026: From observability to ROI for AI agents on any framework

9 min read · June 3, 2026 · Sebastian Kohlmeier
Shipping an AI agent is the easy part. Keeping it accurate, safe, and accountable in production is where teams get stuck. Agents are non-deterministic. Their behavior shifts as models update, tools change, and traffic...
Microsoft Foundry Blog

Jun 3, 2026
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Go 1.26.4-1 and 1.25.11-1 Microsoft builds now available

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

Jun 3, 2026
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How Microsoft is migrating repositories to GitHub

For the past decade, Azure DevOps has powered software development at Microsoft, supporting some of our largest repositories and most complex engineering workflows across Azure Repos, Boards, and Pipelines.
Software development is being reshaped by AI, and where code lives now have a...
Azure DevOps Blog

Jun 3, 2026
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Expanding the Reach of Document Translation - New Capabilities Announced at Microsoft Build

Learn how new Document Translation capabilities in Azure Translator, available in Foundry Tools, help developers translate images, PDFs, Office files, DITA, XLIFF, and future LLM-powered document workflows.
Microsoft Foundry Blog

Jun 3, 2026
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Microsoft Agent Framework at BUILD 2026: Agent Harness, Hosted Agents, CodeAct, and more

Microsoft Agent Framework at BUILD 2026: Agent Harness, Hosted Agents, CodeAct, and more
BUILD 2026 is underway, and the Microsoft Agent Framework team have a round-up of exciting announcements! Microsoft Agent Framework (MAF) is our open-source SDK and runtime for building AI agents...
Microsoft Agent Framework
Jun 3, 2026
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Announcing Foundry Managed Compute: Run open models in Microsoft Foundry

Microsoft Foundry Managed Compute is a new GPU platform-as-a-service for hosting open-source and custom AI models behind the same endpoint, SDKs, and bill as frontier models.
Microsoft Foundry Blog

Jun 3, 2026
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Introducing Agent Optimizer in Foundry Agent Service
Luis,
Victor
With hosted agents, we made it straightforward to build and deploy agents on Foundry. You write your logic, run azd deploy, and your agent is live. But “live” and “production-ready” aren’t the same thing.
The gap shows up quickly. Your customer support agent handles...
Microsoft Foundry Blog

Jun 3, 2026
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Making agent memory more reliable, transparent, and production-ready

Memory has always mattered for personalization and continuity. But as customers move agents from demos into production, another requirement becomes just as important: reliability.
Enterprise teams need agents that not only remember facts, but also apply what they have learned to...
Microsoft Foundry Blog

Jun 3, 2026
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Discovery to Execution: Scaling Agents with Toolboxes and Routines in Microsoft Foundry
Linda,
Maria
Tooling doesn’t break at a small scale—it breaks when teams move to production. AI adoption accelerates, so does the number of tools available to them. Discovering, managing and securing the right tools has quickly become one of the biggest challenges in building production-grade...
Microsoft Foundry Blog

Jun 3, 2026
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From Building Agents to Working with Them: Enterprise Agent Distribution in Microsoft Foundry

The past year was about building agents. The next year is about putting them to work.
Organizations have moved quickly from experimenting with AI agents to building ones that perform complex business processes and execute long-running tasks. But the bottleneck has shifted. The...
Microsoft Foundry Blog

Jun 3, 2026
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Rotation revisited: A shocking discovery about gcc's unidirectional rotation algorithm

We've seen this before.
The Old New Thing

Jun 2, 2026
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Build smarter document workflows: What's new in Azure Content Understanding at Build 2026
Peyton,
Joe,
Ronak
Azure Content Understanding (CU) in Foundry Tools is Microsoft's comprehensive content AI service. It ingests diverse data types — documents, audio, images, and video — and extracts the most critical information to power well-grounded, reliable generative AI and agentic solutions....
Microsoft Foundry Blog

Jun 2, 2026
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Build, scale, and monetize apps and agents with Microsoft Marketplace

At Microsoft Build, we are sharing how Microsoft Marketplace brings development, distribution, and monetization together— so apps and agents move beyond prototyping into real-world usage at scale. Microsoft Marketplace connects tens of thousands of cloud and AI solutions built by...
All things Azure

Jun 2, 2026
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Introducing azure-functions-skills: An AI-Era Workspace for Azure Functions (Preview)

azure-functions-skills gives GitHub Copilot CLI, Claude Code, Codex CLI, and VS Code the skills, MCP configuration, hooks, and instructions needed to create, diagnose, deploy, and validate Azure Functions projects end-to-end.
Azure SDK Blog

Jun 2, 2026
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Announcing the Public Preview of Integrated Embeddings in Azure Cosmos DB: Build AI Apps With Embeddings That Stay in Sync

AI applications built on Azure Cosmos DB depend on embeddings for grounded results. Keeping them in sync with your data is the hard part: it means building and operating a separate data pipeline to track changes, call an embedding model, and write the results back to Azure Cosmos DB. In...
Azure Cosmos DB Blog

Jun 2, 2026
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Introducing OmniVec: An Open-Source Embedding Platform for AI Apps on Azure

Today we are open-sourcing OmniVec, a platform for building and operating the embedding pipelines that keep the vector representation of your operational data in sync as it changes. You register data sources, embedding model(s), vector stores (destination), and OmniVec does the rest:...
Azure Cosmos DB Blog

Jun 2, 2026
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Azure DocumentDB – General Availability of Service-Managed Failovers

We are excited to announce the general availability of service-managed failovers in Azure DocumentDB, eliminating the need for human intervention to recover from a regional outage.
Running a production database means planning for the unlikely. Regional outages are rare, but when they...
Azure DocumentDB Blog

Jun 2, 2026
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Instant Free Tier Clusters in Azure DocumentDB

Feedback from developers using Azure DocumentDB consistently pointed to one small but still impactful item on their wish list: provisioning a free tier cluster took a few minutes. For a developer just getting started, or an agentic workflow spinning up ephemeral clusters to validate a...
Azure DocumentDB Blog

Jun 2, 2026
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Azure Cosmos DB All Versions and Deletes Change Feed Mode is Now Generally Available

Modern applications don't just write data and move on. They react to it. A new order triggers an inventory update. A profile change syncs to a search index. A deleted record kicks off a compliance workflow. Azure Cosmos DB's change feed makes this possible by giving you a real-time stream...
Azure Cosmos DB Blog

Jun 2, 2026
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Change Partition Keys in Azure Cosmos DB is Now Generally Available

We're excited to announce the general availability of Change Partition Key in Azure Cosmos DB for NoSQL, now with online copy support. You can repartition containers directly in the Azure portal with near-zero downtime and without stopping writes to the source container.
Why Partition...
Azure Cosmos DB Blog

Jun 2, 2026
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Change Streams in Azure DocumentDB: Richer Events, Historical Replay, and Multi-Node Change Streams (Public Preview)

Real-time, event-driven applications are now the expectation, not the exception. Teams want dashboards that update the instant something happens, microservices that react the moment data lands, and pipelines that move changes downstream without polling a database on a timer. Since Change...
Azure DocumentDB Blog

Jun 2, 2026
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Graceful Failovers in Azure DocumentDB - Now Generally Available

We are excited to announce the general availability of graceful failovers in Azure DocumentDB.
Not every region switch is because of availability loss. Whether you're migrating your primary workload to a different Azure region or proactively moving ahead of a forecasted...
Azure DocumentDB Blog
Jun 2, 2026
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Public Preview: AI-powered Azure Cosmos DB Migration Assistant for RDBMS to NoSQL
Sergiy,
Anil
Today, we are excited to announce the public preview of the Azure Cosmos DB Migration Assistant for RDBMS to NoSQL, now available in the Azure Cosmos DB extension for Visual Studio Code.
📈 Modernize with confidence
Why migrate from RDBMS to Azure Cosmos DB?
Modernizing...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing the General Availability of Per Partition Automatic Failover for Azure Cosmos DB NoSQL

Today, we are excited to announce the General Availability of Per Partition Automatic Failover (PPAF) for Azure Cosmos DB NoSQL API. PPAF is a significant advancement in how Azure Cosmos DB delivers availability and resilience for mission-critical workloads running on single-write-region...
Azure Cosmos DB Blog

Jun 2, 2026
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Azure Cosmos DB MCP Toolkit Is Now Generally Available — Bringing Your Database to AI Agents at Scale

Since we introduced the Azure Cosmos DB MCP Toolkit at Ignite 2025 in preview, the response has been clear: developers want a straightforward way to connect AI agents to their production databases. Customers asked for stability, broader embedding provider support, and a smoother path from...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing General availability of the Azure Cosmos DB vNext emulator

The Azure Cosmos DB vNext emulator is generally available today. It ships as a Docker image that runs on Linux, macOS, and Windows, on both x64 and ARM64 architectures, giving you a local Cosmos DB instance you can develop and test against. Use it for inner-loop development on your...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing General Availability of Azure Cosmos DB Global Secondary Indexes

Have you ever needed to evolve your read patterns without losing efficiency? Maybe your app started with one access pattern, but now you need three, and the queries that don't hit your partition key are getting slower and more expensive every month. We built global secondary indexes...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing the Public Preview of Semantic Reranker in Azure Cosmos DB for NoSQL

Today we’re thrilled to announce the public preview of Semantic Reranker in Azure Cosmos DB for NoSQL, a new AI-powered capability that improves the relevancy of your search results with just a few lines of code. If you’ve ever run a vector, full-text, or hybrid search and wished the...
Azure Cosmos DB Blog

Jun 2, 2026
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Azure DocumentDB MCP Toolkit: Agentic AI for MongoDB-Compatible Workloads
Developers are moving quickly to build AI-powered experiences, but there is a gap between what an agent can say and what it can actually do. To be useful, an agent needs secure access to live systems, real data, and the same operational context developers already rely on. That is why we...
Azure DocumentDB Blog

Jun 2, 2026
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New Toolkits for Agent Memories and Agentic Retrieval in Azure Cosmos DB

Today we’re thrilled to announce the public preview of two new toolkits for Azure Cosmos DB: the Agent Memory Toolkit and the Agentic Retrieval Toolkit. If you’re building AI agents and retrieval-augmented generation (RAG) apps, these toolkits are designed to take you from prototype...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing Public Preview of Safe Key Rotation in Azure Cosmos DB

In our previous post, we introduced the private preview of Safe Key Rotation, a feature that helps Azure Cosmos DB customers avoid service disruptions during key rotations. By showing when each account key was last used, it helps teams make informed decisions before rotating keys...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing the Public Preview of the Azure Cosmos DB Cost Estimator for NoSQL

Today, we're thrilled to announce the public preview of the Azure Cosmos DB Cost Estimator, a new sizing and pricing experience that takes developers from a blank page to a defensible monthly cost estimate in minutes.
Sizing an Azure Cosmos DB workload has always been one of...
Azure Cosmos DB Blog

Jun 2, 2026
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Announcing Public Preview of Distributed Transactions in Azure Cosmos DB for NoSQL

In modern cloud-native applications, correctness is often hardest to maintain at the exact moment a workflow crosses boundaries. A checkout flow writes an order in one place; decrements inventory in another and emits an audit event somewhere else. A money movement workflow debits one...
Azure Cosmos DB Blog

Jun 2, 2026
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From Intent to Insight: AI Meets Azure Cosmos DB in VS Code (Public Preview)

The Problem Every Developer Knows Too Well
You're building a feature. You know exactly what data you need all orders from the last week over $500, grouped by region. The logic is clear in your head. But between you and that data sits a query language, a documentation tab (or three),...
Azure Cosmos DB Blog

Jun 2, 2026
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Azure Cosmos DB Agent Kit now battle tested for GA

Back in January, we shipped the Azure Cosmos DB Agent kit in preview with 45 rules and a hypothesis: if we package Azure Cosmos DB expertise into a format that AI coding agents understand, developers will stop making the same expensive mistakes. That hypothesis held up. What surprised us...
Azure Cosmos DB Blog

Jun 2, 2026
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Work IQ: Production‑ready intelligence for every agent

Work IQ provides a workplace intelligence layer that enables agents to access and reason over organizational data, context, and tools, continuously building a semantic understanding across Microsoft 365 and external systems with built-in, permission-aware governance.
Microsoft 365 Developer Blog

Jun 2, 2026
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Build collaborative agents where work happens

At Microsoft Build 2026, we're announcing new investments to help your agents become teammates in everyday work, from new interaction patterns to streamlined tooling.
Microsoft 365 Developer Blog

Jun 2, 2026
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Azure DocumentDB Migration Extension for VS Code Is Now Generally Available

We are happy to share that online migration in the Azure DocumentDB Migration extension for VS Code is now Generally Available. Back in November 2025, we launched the Public Preview and since then, many customers have put it through its paces with all kinds of MongoDB workloads. Based on...
Azure DocumentDB Blog

Jun 2, 2026
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Announced at MS Build 2026: Azure Cosmos DB MCP Toolkit, Semantic Reranking, Global Secondary Indexes, and more!

Microsoft Build 2026 has officially started and we’re excited to announce new capabilities for Azure Cosmos DB! We’ve launched new features to help developers build AI-powered applications and agents more easily, improve application resilience, and accelerate developer...
Azure Cosmos DB Blog

Jun 2, 2026
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Azure DevOps and GitHub: Journeying into the AI Era

AI is changing how software gets planned, built, and reviewed. As teams adopt agentic development, the platform underneath those workflows matters more. They need tools that bring planning, coding, security, and collaboration together—and can keep pace with how development is...
Azure DevOps Blog

Jun 2, 2026
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Frontier Tuning: Teaching AI to work the way you do
We're announcing the private preview of Frontier Tuning, a new approach to making AI work the way your business does by applying reinforcement learning inside your compliance boundary with your own data, processes, and conventions.
Microsoft 365 Developer Blog

Jun 2, 2026
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A Developer’s Guide to Managing Models, Cost and Quality in Microsoft Foundry
Learn a practical model lifecycle for Microsoft Foundry: select the right model, evaluate quality, optimize cost, operate safely, and improve as production needs change.
Microsoft Foundry Blog

Jun 2, 2026
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What's Coming Next in Visual Studio: Our Microsoft Build 2026 Announcements

Microsoft Build kicks off today in San Francisco, June 2 and 3. If you cannot make it in person, the sessions are streaming online for free, and I want to walk you through what we are announcing for Visual Studio this week.
One idea tie most of it together. Code is an asset, not just...
Visual Studio Blog

Jun 2, 2026
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Build and run agents at scale with Microsoft Foundry at Build 2026

Learn how Microsoft Foundry helps developers build, deploy, and operate production-ready agents with Agent Framework, Toolboxes, hosted agents, Microsoft 365 distribution, observability, and agent optimization.
Microsoft Foundry Blog

Jun 2, 2026
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Foundry IQ: Build smarter agents faster with unified knowledge and serverless retrieval

Learn how Foundry IQ helps developers ground agents with unified enterprise knowledge, serverless retrieval, improved agentic retrieval quality, and production-ready security.
Microsoft Foundry Blog

Jun 2, 2026
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Build agents you can trust across any framework with open evals and a control standard
Learn how Microsoft helps developers build trustworthy AI agents with open evaluations, portable runtime controls, production observability, and security workflows that work across frameworks.
Microsoft Foundry Blog

Jun 2, 2026
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Azure Translator: Improving Translation Quality with Adaptive Datasets and Few‑Shot Learning

Your healthcare app needs "La médica" not "El médico." Your legal documents need precise terminology, not generic translations. When domain-specific language matters, generic LLM translation falls short.
Azure Translator's adaptive translation lets you teach the model your...
Microsoft Foundry Blog

Jun 2, 2026
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Announcing Intelligent Terminal 0.1

Today we're announcing Intelligent Terminal version 0.1, an open-source experimental fork of Windows Terminal with native agent integration.
Get started
Install from the Microsoft Store: Intelligent Terminal on the Microsoft Store
Install via WinGet:
winget install...
Windows Command Line

Jun 2, 2026
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Azure Translator API Version 2026‑06‑06 (GA): Supporting Multilingual Applications with Flexible Translation Options

Ship multilingual features in hours, not months
Your translation workflow probably looks like this: one vendor for real-time chat, another for document translation, a custom LLM integration for nuanced content, and a spreadsheet tracking which system handles what. Azure Translator's...
Microsoft Foundry Blog

Jun 2, 2026
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What's new in Microsoft Foundry | Build Edition

Microsoft Build 2026 brings a major set of Microsoft Foundry updates for developers building agents: hosted runtimes, Toolboxes, memory, Voice Live, Foundry IQ, new models, managed compute, and trust, evaluation, and observability tools.
Microsoft Foundry Blog

Jun 2, 2026
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What's New in Hosted Agents in Foundry Agent Service
Tina,
Pranav
A few weeks ago, we announced the public preview refresh of hosted agents in Foundry Agent Service — a fundamentally re-imagined agent runtime built for operationalizing production-grade AI agents in enterprise systems. Today at Microsoft Build, we are excited to share several updates...
Microsoft Foundry Blog

Jun 2, 2026
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MSSQL Extension for VS Code: Azure SQL Database Provisioning and More
Yo-Lei,
Carlos,
Tauseef
The MSSQL extension for VS Code v1.43 expands what’s possible inside Visual Studio Code with the General Availability of Schema Designer with GitHub Copilot, Data API builder, and SQL Notebooks. We’re also introducing the Public Preview of Azure SQL Database provisioning, giving...
Azure SQL Dev Corner

Jun 2, 2026
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Rotation revisited: Another unidirectional algorithm

Moving in a straight line, in a different way.
The Old New Thing

Jun 2, 2026
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Staging Part 1 - Sharing is Caring
A key phase in installing a package is staging the package:
var packageUri = new Uri("C:\\Packages\\ContosoParts-v1.2.3.4-x64.msix");
var options = new StagePackageOptions();
var packageManager = new PackageManager();
var result = await packageManager.StagePackageByUriAsync(packageUri,...
Inside MSIX

Jun 1, 2026
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Aspire 13.4 is here

Aspire 13.4 is here with TypeScript apphost GA, typed resource commands with results, server-side CLI log and telemetry search, more mature Kubernetes and AKS deployment, and more.
Aspire Blog

Jun 1, 2026
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The placeholder name for the Windows 8 experience was "modern"

Modern this and that.
The Old New Thing

May 31, 2026
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Microsoft Agent Framework at BUILD 2026

BUILD 2026 begins on Tuesday, June 2, and there will be tons of exciting announcements from the Microsoft Agent Framework team, Microsoft Foundry, and all things Microsoft AI. If you're traveling to San Francisco for BUILD, be sure to stop by the Microsoft Foundry booths to chat with...
Microsoft Agent Framework

May 30, 2026
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What's new in Microsoft Foundry | May 2026

May ships trace-based evaluation for any agent on any cloud, Grok 4.3 and DeepSeek V4 in the model catalog, GPT-5 Reinforcement Fine-Tuning at gated GA, three Microsoft Research on-device agent models, Managed VNET at GA, project-level cost attribution, Content Understanding improvements reaching GA, Foundry Local 1.1 and 1.2 with live audio and vision, and azure-ai-projects 2.2.0 with skills, toolboxes, external agents, and model weight registry — plus a guide to Microsoft Foundry sessions at Microsoft Build.
Microsoft Foundry Blog

May 29, 2026
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Sharing the result of a single Windows Runtime IAsyncOperation among multiple coroutines, part 3

A variation where we try only once.
The Old New Thing

May 28, 2026
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Visual Studio Code 1.122

Learn what's new in Visual Studio Code 1.122
Read the full article
VS Code Blog

May 28, 2026
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SharePoint Framework (SPFx) roadmap update – May 2026

SPFx is powering the future of Microsoft 365 with AI driven portals and deep integrations across SharePoint and Microsoft 365. The May 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 based on your input.
Microsoft 365 Developer Blog

May 28, 2026
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Announcing AgilitySDK 721 Preview and an addition to LinAlg in Shader Model 6.10

Overview
Today, we are pleased to announce Agility SDK 1.721-preview with new D3D features along with DXC 1.10.2605.4 adding VectorAccumulate to LinAlg in the existing Shader Model 6.10 preview. The previous 1.720-preview and SM 6.10 preview blog is still relevant, as all of its...
DirectX Developer Blog

May 28, 2026
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Improve your agentic developer tools by grounding in Microsoft Learn

Development workflows span terminals, IDEs, background agents, and custom assistants. What matters is whether they draw from the same current source. Learn MCP Server gives any MCP-compatible agent direct access to current Microsoft documentation - one endpoint, nothing to install, no...
Microsoft for Developers

May 28, 2026
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PIX 2605.28-preview: previewing new PIX and D3D12 features

Today we released PIX version 2605.28-preview, which can be downloaded here.
This release complements the new D3D12 Agility SDK that was released today, version 721. This PIX release also includes initial preview versions of a lot of the exciting PIX features that we announced in our...
PIX on Windows

May 28, 2026
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How Azure Chaos Studio ships with hermetic Aspire end-to-end tests
Learn how the Azure Chaos Studio team uses Aspire.Hosting.Testing to run hermetic, per-PR end-to-end tests across four services — with emulators, stubs, and no shared environments.
Aspire Blog

May 28, 2026
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Sharing the result of a single Windows Runtime IAsyncOperation among multiple coroutines, part 2

Just let each person take turns trying.
The Old New Thing

May 28, 2026
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SQL + AI, hands-on: Join a free workshop near you

If you work with Microsoft SQL regularly, the AI conversation right now probably feels a little exhausting. Every week brings a new platform, a new pattern, a new opinion about how you’re “supposed” to build AI apps. Most of it assumes you’ll start over.
You don’t have...
Azure SQL Dev Corner

May 28, 2026
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Verification-driven tooling prompts for fast-moving codebases
A practical pattern for using GenAI research agents to produce reliable internal tooling by verifying assumptions with detection classes and a final checklist.
ISE Developer Blog

May 27, 2026
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What's New for C++ Developers in Visual Studio 2026 (18.1 - 18.6)

Visual Studio 2026 versions 18.1 through 18.6 deliver a wave of improvements for C++ developers. For MSVC Build Tools, the v14.51 release is now generally available with runtime performance gains and improved C++23 conformance. We also introduced Sample Profile Guided Optimization to help...
C++ Team Blog

May 27, 2026
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Partial Graphics Programs
Overview
Following the GDC announcement of the partial graphics programs feature, we are pleased to announce that it is available today in the AgilitySDK 1.721-preview. Checkout the release blog for more details about the full release.
This preview serves as a first look to...
DirectX Developer Blog

May 27, 2026
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I'm Starting a New Cosmos DB App. What Security Do I Actually Need?
Sudhanshu,
Iria
You just created a Cosmos DB account. The portal handed you two keys and a connection string, it worked, and you moved on. That's what most developers do, and it causes problems later.
This post is a guide for developers launching a new Cosmos DB app who want a secure default setup...
Azure Cosmos DB Blog

May 27, 2026
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How AI coding agents actually use your technology

You ship an SDK, a CLI, an API, and developers use it. Now AI coding agents use it too, except they use it differently than humans do. Most of the time you have no idea what's actually happening between "developer types a prompt" and "agent generates code with your technology." Is the...
Microsoft for Developers