Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Latest posts

Feb 11, 2025

Unified manifest support for Word, Excel, and PowerPoint now available for preview

Luyi Han

The unified manifest is a key component of the Microsoft 365 ecosystem providing a single model for distributing and managing Teams apps, Outlook add-ins, as well as Copilot agents which work across Microsoft 365 apps.  We've released it for Outlook, and now it is available for Word, PowerPoint, and Excel.

Jan 30, 2025

Introducing the Microsoft Graph Export-Import APIs for Exchange in public preview

Cameron,

Surya

We are happy to announce the launch of Export-Import APIs in limited Public Preview (Beta), a set of Microsoft Graph APIs that empower applications to discover, export and import contents from Exchange Online mailboxes in full fidelity.

Jan 29, 2025

Dev Proxy v0.24 with improved generating OpenAPI specs

Waldek,

Garry

Try the latest version of Dev Proxy to simulate APIs and test your applications under real-world conditions

Jan 16, 2025

Automate app compliance with ACAT

Yan Jin

Learn how you can define the compliance boundary for your Microsoft 365 application on Azure and AWS with the App Compliance Automation Tool (ACAT) for Microsoft 365.

Jan 9, 2025

Teams Toolkit for Visual Studio Code update – January 2025

Junjie Li

We’re kicking off the new year with exciting updates to Teams Toolkit for Visual Studio Code including a refreshed user interface for getting started and more!

Dec 23, 2024

Announcing the Office Add-ins Development Kit GA

Mingjia Liu

The Office Add-ins Development Kit for Visual Studio Code is now generally available! After months of public preview, we've gathered invaluable feedback from the community and improved the experience.