MCP Apps now available in Copilot chat - Microsoft 365 Developer Blog Agents bring rich, app powered UI experiences directly into Microsoft 365 Copilot chat, via MCP Apps or the OpenAI Apps SDK. Read about what customers and partners are building.

MCP Apps now available in Copilot chat

Breaking Change Ahead: Graph API Updates to Sensitive Email Properties - Microsoft 365 Developer Blog Starting 12/31/2026, we'll restrict sensitive email properties updates on non-draft messages. Add Mail-Advanced.ReadWrite to avoid failures.

Breaking Change Ahead: Graph API Updates to Sensitive Email Properties

SharePoint Framework (SPFx) roadmap update – March 2026 - Microsoft 365 Developer Blog SPFx is powering the future of Microsoft 365 with AI driven portals and deep integrations across SharePoint Teams and Viva. The March 2026 update shares new features and the roadmap for the next evolution...

SharePoint Framework (SPFx) roadmap update – March 2026 devblogs.microsoft.com/microsoft365...

Changes to attachment IDs for inline images in Outlook add-ins - Microsoft 365 Developer Blog Read how inline image attachments are handled when they’re programmatically added to a mail item's signature or body in Outlook on the web and the new Outlook for Windows

Changes to attachment IDs for inline images in Outlook add-ins

Build business understanding with Dataverse in Microsoft 365 Copilot - Microsoft 365 Developer Blog Microsoft 365 Copilot is now embedded as an in-app sidecar within Power Apps, Dynamics 365 Sales, and Dynamics 365 Customer Service—removing the need to switch between apps to find context or complete...

Build business understanding with Dataverse in Microsoft 365 Copilot

Prepare your add-in for Outlook ribbon improvements - Microsoft 365 Developer Blog Explore the latest Outlook ribbon update to enhance how add-ins appear in Outlook and streamline your workflow.

Prepare your add-in for Outlook ribbon improvements

SharePoint Framework (SPFx) roadmap update – February 2026 - Microsoft 365 Developer Blog We move towards spring 2026 with strong momentum across the SharePoint Framework and an increasing sense of excitement across the ecosystem. SPFx continues to be a foundational platform for building intelligent,...

SharePoint Framework (SPFx) roadmap update – February 2026

Increased control over Office Add-in user experiences - Microsoft 365 Developer Blog Explore how enhanced user control improves the Office Add-in experience and addresses customer feedback on launch behavior.

Increased control over Office Add-in user experiences

Handling Legacy User Settings in SharePoint Framework - Microsoft 365 Developer Blog Introduction The SharePoint Framework (SPFx) has undergone some important changes in how it handles Entra ID app registration and security models. Here you can find additional details about what was updated...

Handling Legacy User Settings in SharePoint Framework

Mastering User Settings in SharePoint Framework - Microsoft 365 Developer Blog User preferences and settings are fundamental components of modern web applications. When developing SharePoint Framework (SPFx) solutions, the ability to store and manage user-specific configurations...

Mastering User Settings in SharePoint Framework

Deprecation notice: Teams Live Events meeting creation via Microsoft Graph - Microsoft 365 Developer Blog Creating Teams Live Events via the Microsoft Graph isBroadcast API is deprecated. We encourage developers to use Virtual Event APIs instead.

Deprecation notice: Teams Live Events meeting creation via Microsoft Graph

Consuming an authenticated MCP server with a declarative agent in Copilot Chat In this post, we'll learn how to create a declarative agent using the Microsoft 365 Agents Toolkit that consumes an Entra-authenticated MCP server.

We’ve built an Entra-authenticated MCP server—now let’s actually use it 👀

Here’s how to connect it to a declarative agent in Copilot Chat using the Microsoft 365 Agents Toolkit and the new MCP support:

👉 www.developerscantina.com/p/mcp-declar...

#Microsoft365 #Copilot

Nordiques didn't get any better, heh? 😉

Dev Proxy v2.1 with configuration hot reload and stdio proxying - Microsoft 365 Developer Blog Introducing Dev Proxy v2.1 with configuration hot reload and stdio proxying

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

Introducing the Microsoft Graph User Configuration API (preview) - Microsoft 365 Developer Blog The User Configuration API is now available in the beta endpoint in Microsoft Graph. Use it to create, read, update, and delete user configuration objects in Exchange Online mail folders.

Introducing the Microsoft Graph User Configuration API (preview)

SharePoint Framework (SPFx) roadmap update – January 2026 - Microsoft 365 Developer Blog SPFx is powering the future of Microsoft 365 with AI driven portals and deep integrations across SharePoint Teams and Viva. The January 2026 update shares new features and the roadmap for the next evolution...

SharePoint Framework (SPFx) roadmap update – January 2026

No apologies needed here. I absolutely understand the concern!

Starting today, you can have your MCP servers return interactive components ✨

That's right, you can now put full-blown UI experiences inside your chat - supported in @anthropic.com Claude and @vscode.dev (more clients soon) 🚀

Blog post: blog.modelcontextprotocol.io/posts/2026-0...

I'm very curious about that thread now 😁

VS Code just announced MCP Apps support! 🔥

Here's one I just made that visualizes git commit history. You can also multi-select commits and have Copilot generate release notes for you!

Check out how to get started with MCP Apps in VS Code here: code.visualstudio.com/blogs/2026/0... #vscode

Introducing the Evals for Agent Interop starter kit - Microsoft 365 Developer Blog Explore Agent365 Evals Agent Interop for realistic evaluation of AI agents across Microsoft systems and tools.

Introducing the Evals for Agent Interop starter kit

That is cool! We prototyped something really similar in the past but never made it to the finish line. Happy to chat and make it native within ATK!

Bringing work context to your code in GitHub Copilot - Microsoft for Developers This week we shipped the GitHub Copilot SDK which takes the agent loop from the Copilot CLI and makes it easy to embed in other applications. We’ve been using, improving, and extending Copilot CLI for...

Developing isn't only about writing the code, there's work context and team decisions that come with it.

Work IQ now brings this missing piece directly to GitHub Copilot, and you can leverage it all without leaving your terminal using the Copilot CLI 🔥

devblogs.microsoft.com/blog/bringin...

I asked GitHub Copilot with Work IQ to compare my PowerToys search spec in SharePoint to the implementation on the GitHub repo and it worked seamlessly.

Being able to pair work context with code in the repo using Copilot is an absolute game changer for development💥💥💥

Copilot Studio Extension for Visual Studio Code Is Now Generally Available - Microsoft 365 Developer Blog Explore the Copilot Studio VS Code extension for building agents with ease. Enhance your development workflow today.

Copilot Studio Extension for Visual Studio Code Is Now Generally Available

Oh... I was going to try that specific feature tomorrow for our TypeSpec-based Copilot agents... Bummer.

Hey! It's me! That was a fun SPS!

SharePoint Framework (SPFx) roadmap update – December 2025 - Microsoft 365 Developer Blog 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...

SharePoint Framework (SPFx) roadmap update – December 2025

Unlock your email potential with Schema.org - Microsoft 365 Developer Blog Discover how email can streamline your business travel experience and ensure you never miss important details.

Unlock your email potential with Schema.org

Build declarative agents for Microsoft 365 Copilot with MCP - Microsoft 365 Developer Blog With introduction of MCP support, it’s now much easier for developers to integrate their business workflows, SaaS, and LoB systems into Copilot via declarative agent.  

Build declarative agents for Microsoft 365 Copilot with MCP