Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Link unfurling and search based message extensions in Outlook generally available

November 21, 2023 Nov 21, 2023 11/21/23

Namrata Khubchandani

Extend your existing search based message extensions and link unfurling in Microsoft Teams to Outlook without any new technical investments.

Ignite 2023: Ushering in the era of Microsoft Copilot extensibility

November 15, 2023 Nov 15, 2023 11/15/23

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.

Test and debug securely with Dev Tunnels

November 8, 2023 Nov 8, 2023 11/8/23

Carolina Uribe-Gosselin, Utsa Santhosh, Jason Ginchereau

Dev Tunnels is a security-first, developer-optimized tunneling service designed to allow you to securely expose your local endpoint to the internet. This is helpful for sharing in-progress work, testing, and debugging web APIs and webhooks, experimenting on other devices, and testing integrations with cloud services. Dev Tunnels is cross-...

Announcing SharePoint Framework 1.18.1 with updates for Microsoft Viva Connections

November 7, 2023 Nov 7, 2023 11/7/23

Vesa Juvonen

We are excited to announce a new public version of the SharePoint Framework, v1.18.1, with new mobile theming support for the Microsoft Viva Connections extensibility.

Eliminate digital drag: Move your organization into the modern work and generative AI fast lane

November 1, 2023 Nov 1, 2023 11/1/23

Sebastian Holst

A Forrester Consulting survey commissioned by Microsoft reveals the challenges and opportunities for enterprises in today’s world of modern work and generative AI.

Update to Exchange callback tokens for Outlook add-ins

October 26, 2023 Oct 26, 2023 10/26/23

Akhilesh Shah

Learn how to prepare for the upcoming change to Exchange callback tokens and avoid any disruptions in your Outlook add-ins.

Boost your app’s visibility and engagement in Microsoft 365

October 25, 2023 Oct 25, 2023 10/25/23

Nnamdi Onuorah, Daniel Carrasco

Get familiar with the latest features that can help you boost your app's visibility and engagement across Microsoft 365.

Bring your app across Microsoft 365: Outlook extensions, meeting apps, and more

October 19, 2023 Oct 19, 2023 10/19/23

Nnamdi Onuorah, Daniel Carrasco

Create engaging and productive experiences for Outlook and Teams users leveraging the same code base and capabilities across both applications.

Teams Toolkit update – October 2023

October 17, 2023 Oct 17, 2023 10/17/23

John Miller

This update brings searchability to the sample gallery, improvements to sample contribution, and the capability to create message extensions using your APIs.