Microsoft 365 Developer Blog
A developer platform for building collaborative apps for hybrid work
Latest posts
New Teams Toolkit for Visual Studio release with exciting features for .NET developers
Learn about the newest capabilities for .NET developers in the latest version of Teams Toolkit for Visual Studio.
AI pair programming: Build a product inventory app with GitHub Copilot and Teams Toolkit
Learn how AI can help you build your first app for Microsoft Teams, specifically designed for a product inventory scenario.
Bring your data into Microsoft 365 with Microsoft Graph connectors
Microsoft Graph connectors help users get relevant results from all their data in the context of the app they search from.
Profile card properties path and permission changes in Microsoft Graph (beta)
Introducing breaking changes to profile card properties APIs on the beta version of Microsoft Graph.
Microsoft 365 Developer Proxy v0.10 with support for batching and improved $select guidance
Microsoft 365 Developer Proxy v0.10 introduces the preview ability to fail and detect minimal permissions in batch requests and improves the $select guidance to help you build more performant applications.
Announcing Microsoft Graph PHP 2.0.0-RC19
Today we are announcing the new RC19 version. Since the RC5 announcement, we have improved many of the common scenarios to give you time back to focus on quality and design.
Teams Toolkit for Visual Studio Code update – July 2023
In this update, we share the latest with Microsoft Teams app development using Teams Toolkit for Visual Studio Code.
Breaking changes in the Microsoft Graph list channels API (beta) 
For quite some time, we’ve offered developers access to our Get List Channels API on the beta endpoint of Microsoft Graph. The Get List Channels API helps in fetching the list of channels for a team. However, as is sometimes the case with pre-production APIs, we’re making a few necessary changes.
Keep your app top of mind and top of chat with message extensions in Microsoft Teams and Microsoft 365 Copilot
In this post, we answer the most common questions about using message extensions in Teams.