Showing results for Office Add-ins - Microsoft 365 Developer Blog

May 20, 2025
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Introducing the Microsoft 365 Agents Toolkit

Zhidi Shang
Zhidi Shang

Read how the Microsoft 365 Agents Toolkit, an evolution of Microsoft Teams Toolkit, is designed to help developers build agents and apps for Microsoft 365 Copilot, Microsoft Teams, and Microsoft 365.

Microsoft 365 CopilotMicrosoft 365 Developer
Aug 14, 2024
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Updates on deprecating legacy Exchange Online tokens for Outlook add-ins

David Chesnut Paul Inverso
David,
Paul

In April, we announced that Exchange tokens will be turned off by default for all tenants in October 2024. This has been updated and you should have more time to move your Outlook add-ins from Exchange tokens to NAA.

Microsoft 365 DeveloperOffice Add-ins
Apr 3, 2024
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Update on the future of the Script Lab Office add-in

Alexander Jerabek
Alexander Jerabek

Script Lab is now officially owned and maintained by Microsoft, will no longer be open source, and the GitHub repository will be archived.

Microsoft 365 DeveloperOffice Add-ins
Nov 15, 2023
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Ignite 2023: Ushering in the era of Microsoft Copilot extensibility

Ben Summers
Ben Summers

We’re very excited to announce the public preview of Copilot extensibility and other updates about our features and capabilities from across the Microsoft 365 platform.

Microsoft GraphMicrosoft TeamsOffice Add-ins