Microsoft 365 Developer Blog
A developer platform for building collaborative apps for hybrid work
Latest posts

Introducing the Microsoft 365 Agents Toolkit

Read how the Microsoft 365 Agents Toolkit, an evolution of Microsoft Teams Toolkit, is designed to help developers build agents and apps for Microsoft 365 Copilot, Microsoft Teams, and Microsoft 365.

Introducing Microsoft 365 Copilot APIs

Learn how Microsoft 365 Copilot APIs allow you to build solutions grounded in your organization’s content, context, and permissions, without needing to relocate or duplicate data.

Exchange Web Services code analyzer and usage report
We are less than 18 months away from the retirement of Exchange Web Services. Start planning your migration from EWS to Microsoft Graph.

Nested App Authentication: Now generally available across Microsoft 365

Get started with Nested App Authentication, a modern protocol for simplifying authentication for Personal Tab Teams apps that run across Microsoft 365.

Announcing the updated Teams AI Library and MCP support
Discover the new and improved Teams AI Library, designed to help developers create even more powerful agents for Microsoft Teams.

Dev Proxy v0.27 with generating TypeSpec files and configuring using natural language


Dev Proxy v0.27 is even more developer-friendly, helping you generate API specs faster, improving suggestions while editing, and laying the foundation for more flexible AI integrations.

Microsoft 365 Certification control spotlight: HIPAA

Learn how Microsoft 365 Certification verifies that ISVs have established protocols for managing health information, dealing with emergencies and service disruptions, and complying with key HIPAA regulations.

Announcing SharePoint Framework 1.21 with updates on building enterprise extensibility within Microsoft 365

We are excited to announce general availability for the SharePoint Framework 1.21. This time focus is primarily on technical platform updates and new UX options in SharePoint and in Viva Connections.

Exciting updates coming to the Microsoft 365 Developer Program

We are excited to share a preview of upcoming updates to the Microsoft 365 Developer Program.