Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Featured posts

Building Agents for Teams: Turning conversations into outcomes
Jul 14, 2026
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Building Agents for Teams: Turning conversations into outcomes

Joey Glocke

The Microsoft Teams platform mission is to build the best collaborative platform in the world. We want to make it easy for developers to build agents that parti...

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

Feb 11, 2020
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Adaptive Cards 1.2 are GA in Microsoft Teams

Ojasvi Choudhary

Adaptive Cards 1.2 are GA in Microsoft Teams on desktop and mobile! Check out highly requested features such as RichText, visibility toggles, and more!

Feb 10, 2020
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Microsoft 365 & SharePoint Community (PnP) – February 2020 update

SharePoint team

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

Feb 4, 2020
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Microsoft Graph subscriptions to change notifications – deprecating TLS 1.0 and 1.1

Vincent Biret

Starting May 15th, 2020, subscribers who use notification endpoints that only support TLS 1.0 or TLS 1.1 will stop receiving notifications, unless they upgrade their infrastructure to compliance and support TLS 1.2. 

Feb 4, 2020
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New SharePoint CSOM version released for SharePoint Online – January 2020

SharePoint team

We are happy to announce the availability of new SharePoint Client-Side Object Model (CSOM) version targeted for the Office 365 or more specifically for SharePoint and Project Online. January 2020 release.

Jan 29, 2020
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Impact on Authentication from SameSite changes in Chrome 

Microsoft identity platform team

Following the recent updates to the standards of SameSite property in HTTP cookies, Chrome has announced changes to the default behavior of SameSite in an upcoming release of the browser in February. Web application developers are recommended to update their application code to handle different SameSite properties on Chrome and other browsers. 

Jan 29, 2020
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Announcing PnPjs 2.0 JavaScript libraries

SharePoint team

We are excited to announce the release of PnPjs 2. This release is the culmination of months of work to re-architect the PnPjs library to support better modern development standards such as selective imports, to refactor inconsistencies in the implementation, and to update our testing and documentation to provide complete coverage of the entire code base.

Jan 20, 2020
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Microsoft Graph PowerShell Preview – Now on PowerShell Gallery

Darrel Miller

The Microsoft Graph PowerShell Preview 0.1.1 is now available on the PowerShell Gallery.

Jan 13, 2020
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Announcing the Microsoft Teams Meetings Capture solution template

Jeremy Thake

The Meetings Capture app showcases how you can accelerate the development of a canonical business app using the Microsoft 365 platform. 

Jan 13, 2020
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Creating single sign-on add-ins for Office has never been easier

Office Extensibility team

The Office Add-ins developer experience team has been improving single sign-on (SSO) for Node.js Office Add-ins.