Microsoft 365 Developer Blog
A developer platform for building collaborative apps for hybrid work
Latest posts
Microsoft 365 Certification control spotlight: Data in transit
Ensure your Microsoft Teams app, Microsoft 365 add-in, or agent meets the latest compliance standards with Microsoft 365 Certification.
Changes on SharePoint Framework (SPFx) permission grants in Microsoft Entra ID
Changes on the SPFx permission management model in the Microsoft Entra ID.
Public preview of SharePoint Framework 1.21 – First release of upcoming features
We are excited to announce the first preview of the upcoming SharePoint Framework 1.21. This release will have updates for SharePoint, Viva Connections and Microsoft Teams experiences.
Dev Proxy v0.25, now available, with automatic shut down and simplified configuration management
Read more about the latest Dev Proxy release featuring significant improvements to configuration management, plugin support, and usability.
Introducing the Adaptive Cards documentation hub and new Adaptive Cards updates
Discover how Adaptive Cards can transform your app with rich, interactive experiences that boost productivity and streamline workflows, in our new Adaptive Cards documentation hub.
Unified manifest support for Word, Excel, and PowerPoint now available for preview
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.
Introducing the Microsoft Graph Export-Import APIs for Exchange in public preview
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.
Dev Proxy v0.24 with improved generating OpenAPI specs
Try the latest version of Dev Proxy to simulate APIs and test your applications under real-world conditions
Automate app compliance with ACAT
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.