Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

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From Innovation to Enterprise Trust with Microsoft Agent 365
Nov 18, 2025
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From Innovation to Enterprise Trust with Microsoft Agent 365

Nirav Shah
Nirav Shah

Agent 365 serves as the control plane for agents, providing organizations with a centralized location to manage agent identity, policies, observability, and lif...

Microsoft 365 DeveloperMicrosoft 365 Copilot

Latest posts

Microsoft Teams App Development Challenge Winners!  
May 24, 2021
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Microsoft Teams App Development Challenge Winners!  

Microsoft Teams team
Microsoft Teams team

We would like to congratulate the four winning partners on their awards and publishing their innovative new Microsoft Teams apps.

Announcing new file components, MSAL 2 Provider, and SharePoint Framework library in Microsoft Graph Toolkit 
May 20, 2021
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Announcing new file components, MSAL 2 Provider, and SharePoint Framework library in Microsoft Graph Toolkit 

Microsoft Graph team
Microsoft Graph team

New Microsoft Graph Toolkit release includes enhanced features that makes your integration with Microsoft Graph even easier than before.

Publish your apps to the Microsoft Teams store
May 18, 2021
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Publish your apps to the Microsoft Teams store

Microsoft Teams team
Microsoft Teams team

When you publish your SaaS offering to the Microsoft Teams store, you can reach more than 500,000 organizations, including small and large corporations and educational institutions.

Add custom keyboard shortcuts to your Office Add-ins in Excel
May 13, 2021
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Add custom keyboard shortcuts to your Office Add-ins in Excel

Office Add-ins team
Office Add-ins team

Today, we are excited to announce general availability for custom keyboard shortcuts for Office Add-ins in Excel.

Microsoft Graph .NET SDK v4 adds enhanced features – now in preview
May 12, 2021
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Microsoft Graph .NET SDK v4 adds enhanced features – now in preview

Microsoft Graph team
Microsoft Graph team

Leverage new modern development features when integrating your application with Microsoft through Microsoft Graph .NET SDK v4

Five new features enhancing Adaptive Cards in Microsoft Teams
May 12, 2021
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Five new features enhancing Adaptive Cards in Microsoft Teams

Ojasvi Choudhary
Ojasvi Choudhary

Learn about the new Adaptive Cards features that will simplify workflows and user interaction models for your bots and work across multiple platforms including Microsoft Teams, Outlook, Windows and more.

New renewal offering for your app’s Publisher Attestation and Microsoft 365 Certification
May 11, 2021
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New renewal offering for your app’s Publisher Attestation and Microsoft 365 Certification

Microsoft 365 Platform team
Microsoft 365 Platform team

The Microsoft 365 App Compliance Program now offers an annual renewal process for app developers to update their existing Publisher Attestation questionnaire and documentation required for certification.

Microsoft Graph Mailbag – Azure AD applications and users for testing
May 11, 2021
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Microsoft Graph Mailbag – Azure AD applications and users for testing

Microsoft Graph Mailbag
Microsoft Graph Mailbag

Learn best practices to configure Azure AD applications and users in your development environment for testing Microsoft Graph queries.

Understanding the Office Add-ins runtime
May 5, 2021
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Understanding the Office Add-ins runtime

Office Add-ins team
Office Add-ins team

Learn about the latest changes in Office's use of web runtimes as well as the runtimes that we've used on various platforms in the past.Â