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

Microsoft 365 Certification control spotlight: Privacy

Discover how Microsoft 365 Certification ensures ISVs use the latest privacy and personally identifiable information (PII) management controls to protect customer data.

Introducing the agent debugging experience in Microsoft 365 Copilot

Learn how to debug your agents within Microsoft 365 Copilot to streamline your workflow using the agent debugging experience, now generally available.

Removal of deprecated DISCO & WSDL aspx pages from SharePoint Online
We are removing DSICO and WSDL pages from the SharePoint Online by mid September 2025.

Microsoft 365 Certification control spotlight: Data access management

Read how Microsoft 365 Certification ensures data access management best practices for Microsoft 365 apps, add-ins, and Copilot agents.

Dev Proxy v0.26 with improved mocking, plugin validation, and Docker support


The latest version of Dev Proxy brings improved validation, plugin reliability, a brand-new Docker image and more.

Microsoft Graph APIs for permanent deletion of mailbox items now available
We’re happy to announce the general availability (GA) of the permanent delete APIs for contacts, messages, and events as well as for contact folders, mail folders, and calendars.

Microsoft 365 Certification control spotlight: Data retention, back-up, and disposal

Learn how Microsoft 365 Certification validates data retention, back-up, and disposal controls for Microsoft 365 apps.

Teams Toolkit for Visual Studio Code update – March 2025
We’re excited to announce the latest updates for Teams Toolkit for Visual Studio Code featuring tenant switching, new capabilities for declarative agents, and more.

Removal of Deprecated SharePoint & OneDrive Permission Resource Properties
We are announcing the phased rollout of an update to remove the grantedTo and grantedToIdentities properties from the Permission resource type in Microsoft Graph.