Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Featured posts

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

Oct 4, 2020
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CLI for Microsoft 365 v3.1

Microsoft 365 PnP Team

We've just published a new version of CLI for Microsoft 365 with commands for managing Microsoft 365 tenants and SharePoint Framework projects on any platform.

Oct 2, 2020
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Microsoft Graph advanced queries for directory objects are now generally available

Office Extensibility team

Developers can query the directory objects with Microsoft Graph using $count, $filter, $search, and $orderBy on more objects, properties, and links.

Sep 24, 2020
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Breaking change to Microsoft Graph Users API: Updates to on-premises sync-enabled user contact numbers are no longer allowed

Microsoft Graph team

Today we're announcing an upcoming breaking change to developers using the Microsoft Graph Users API. The Users API enables admins to get and set properties associated with user objects in Azure AD. This change will be rolling out to all tenants by October 5, 2020. What is the change? This bug fix will prevent Microsoft Graph updates to the mobilePhone property of users who are mastered on-premises and synced to Azure AD. To learn more about user properties, see the user resource topic. Why the change? When using Azure AD Connect to synchronize Active Directory users, groups, and contacts to Azure AD (the cloud),...

Sep 22, 2020
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Change Notifications for Microsoft Teams Messages now Generally Available

Nick Kramer (TEAMS)

Back in February we announced the public preview of change notifications for Teams messages and we are excited to share we have now moved the change notification for Teams to general availability. This was one of the most common requests made in UserVoice, and we heard it from developers who wanted to listen to Teams messages in near-real time, without polling, to enable scenarios such as data loss prevention, enterprise information archiving, and bots that listen to messages that they aren't @mentioned on. We're excited to tell you change notifications for Teams messages are now generally available, and you can ...

Sep 22, 2020
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Ignite 2020: The emergence of Microsoft Graph services

Office Extensibility team

Learn how our engineers are working hard to extend the capabilities and even the definition of Microsoft Graph for developers building the next generation of productivity applications.

Sep 22, 2020
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Microsoft Teams & Microsoft Graph Dev Platform @ Ignite 2020

Office Extensibility team

The way we work is changing faster than ever. At Ignite 2020 we’ll share how the Microsoft 365 platform empowers developers to adapt, innovate, and meet the challenge of that change head-on.

Sep 22, 2020
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Ignite 2020 | Microsoft Teams platform round-up

Office Extensibility team

Read about all the Microsoft Teams announcements at Ignite this year, and get links to the virtual hub for online sessions.

Sep 22, 2020
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Office at Ignite 2020

Microsoft 365 Platform team

Welcome to Ignite 2020! While this year feels different compared to others, we are excited to share our sessions for this year and hear from you. This year we will have open access to everyone – whether you’re sharpening your skills or building your first ever Office integration, we hope that you are able to take away something from our Program Managers, partners, and customers.  

Sep 14, 2020
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Buckle up and get ready for Ignite 2020!

Office Extensibility team

It’s that time of the year again! Are you all ready for Ignite 2020? We are absolutely thrilled to be joining you this year for our all-digital Ignite conference. For those of you who are new, Ignite is our biggest Microsoft conference where, amongst many other things – you can get the latest updates on Microsoft Teams platform, Microsoft Graph, Windows and cross platform development, SharePoint, Office add-ins and more!