Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

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Building Agents for Teams: Managing the noise of collaboration
Aug 13, 2026
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Building Agents for Teams: Managing the noise of collaboration

Lily Du

Most of us are familiar with one-to-one agent chats: private, direct interactions where rules are relatively simple. With only you and the agent, each moment ha...

Microsoft 365 DeveloperMicrosoft Teams
SharePoint Copilot Apps Now in Public Preview: From Intent to Action in Microsoft 365 Copilot
Jul 9, 2026
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SharePoint Copilot Apps Now in Public Preview: From Intent to Action in Microsoft 365 Copilot

Vesa Juvonen

SharePoint Copilot Apps are now in public preview, introducing a new way to bring guided, action-oriented business experiences into Microsoft 365 Copilot. By co...

Microsoft 365 DeveloperSharePoint FrameworkSharePoint

Latest posts

Aug 21, 2020
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The new & improved Microsoft Graph To Do APIs are now in Public Preview

Office Extensibility team

We’re excited to announce that APIs are now available in public preview on the beta endpoint of Graph.

Aug 21, 2020
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What’s new for change notifications and change tracking in Microsoft Graph – August 2020

Vincent Biret

Change notifications uses webhooks to let applications get notified about changes in Microsoft Graph resource data, such as Outlook messages or OneDrive files. Change tracking uses delta queries to let applications discover newly created, updated, or deleted entities without performing a full read of the target resource with every request. Over the last few months, the Microsoft Graph team has delivered new capabilities to unlock new change notification and delta query scenarios for our customers. Change tracking for new entities v1.0 Delta query for service principals, and oAuth2PermissionGrant is now available ...

Aug 12, 2020
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Announcing WebView2 for Office Add-ins Platform – Preview

Office Extensibility team

We're excited to announce that we're taking the next steps in evolving the web viewer control used by the Office Add-ins platform for add-ins running on Windows.

Aug 12, 2020
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Microsoft 365 & SharePoint Ecosystem (PnP) – August 2020 update

Microsoft 365 PnP Team

Microsoft 365 / SharePoint Patterns and Practices (PnP) August 2020 update is out with a summary of the latest guidance, samples, and solutions from Microsoft or from the community for the community. This article is a summary of all the different areas and topics around the Microsoft 365 and SharePoint community (PnP) during the past month.

Aug 5, 2020
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Announcing General Availability of Single Sign-On (SSO) for Office Add-ins

Office Extensibility team

We are excited to announce that the single sign-on (SSO) functionality for Office Add-ins is moving to General Availability with version 2008. This authentication service allows an add-in to automatically and securely sign in a user after being granted consent, providing a more convenient experience by reducing the number of times they are requested to sign in. SSO works with both work and school accounts as well as Microsoft accounts. 

Aug 5, 2020
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Let your users skip sign-in with Single Sign-On support for Microsoft Teams tabs

Office Extensibility team

Developers can now build their apps to sign-in their users using the same account they are using to sign into Microsoft Teams -- giving users a more enjoyable and frustration-free sign-on experience and where they don't have to repeatedly enter their username and password each time they open the app.

Aug 3, 2020
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Frictionless app development and enablement with the Microsoft Teams App Submission API

Office Extensibility team

Streamline Microsoft Teams app staging and publishing with the Teams app staging and submission APIs now generally available on the Microsoft Graph v1.0 endpoint.

Jul 21, 2020
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How to build a Blazor web app with Azure Active Directory authentication and Microsoft Graph

Microsoft identity platform team

This step by step guide will help you build a Blazor web app with Azure Active Directory authentication and Microsoft Graph.

Jul 20, 2020
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MSAL.js 2.0 is now generally available with support for authorization code flow

Microsoft identity platform team

MSAL.js 2.0 supports authorization code flow for single-page applications with PKCE and CORS is now generally available.