Microsoft 365 Developer Blog
A developer platform for building collaborative apps for hybrid work
Featured posts
SharePoint Framework (SPFx) roadmap update – August 2026
SPFx 1.24 Beta 3 is now available, React 18 support is coming in 1.24, and a new Copilot Components preview program opens for customers and partners.
Building Agents for Teams: Managing the noise of collaboration
Most of us are familiar with one-to-one agent chats: private, direct interactions where rules are relatively simple. With only you and the agent, each moment ha...
Latest posts
Introducing the Evals for Agent Interop starter kit
We’re launching Evals for Agent Interop, a starter evaluation kit that provides curated scenarios and representative data that emulate real digital work, and an evaluation harness that organizations can use to self-run their agents across Microsoft 365 surfaces.
Copilot Studio Extension for Visual Studio Code Is Now Generally Available
If you build agents with the Copilot Studio extension for Visual Studio Code, you already know the fastest way to iterate is to treat your agent like software: version it, review changes, and promote it through environments with confidence. Today, the Microsoft Copilot Studio extension for Visual Studio Code is generally available, so you can build and manage Copilot Studio agents from the IDE you already use. What you can do with the Copilot Studio extension for Visual Studio Code As agents grow beyond a few topics and prompts, teams need the same development hygiene they use for apps: source control, pull...
SharePoint Framework (SPFx) roadmap update – December 2025
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.
Unlock your email potential with Schema.org
Email is a key part of how people get things done, whether it’s booking a reservation, confirming a package delivery, or managing a cab reservation. But as inboxes become increasingly cluttered, important transactional information often gets buried. Users are forced to open multiple emails, search through text, and manually look for key details such as reservation times, delivery status, or order confirmations. Let's think about business travel, When users are flying out for meetings, training, or conferences, they shouldn’t have to dig through a crowded inbox to find flight details, hotel confirmations, or car...
Build declarative agents for Microsoft 365 Copilot with MCP
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.
General Availability of SharePoint Framework 1.22 – A Major Refresh of the Build & Tooling Experience
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.
Dev Proxy v2.0 with improved AI telemetry, and small breaking changes
Introducing Dev Proxy v2.0 with improved AI telemetry, and small breaking changes.
Introducing TypeSpec for Microsoft 365 Copilot – Build declarative agents faster with more confidence
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 an agent to help colleagues find documents, or connecting your service as an API plugin, TypeSpec for Microsoft 365 Copilot makes the process simpler, safer, and more productive. A developer-centric experience – strong typing, IntelliSense and productivity One of the biggest pain points for developers building Copilot extensibility so...
SharePoint Framework (SPFx) roadmap update – November 2025
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.