Teams Chat Archive | Topedia Blog

Adding Copilot as a participant in Teams chats

Copilot can now be added as a participant in Teams 1:1 and group chats, allowing members with a Microsoft 365 Copilot license to ask questions via @mention.

26. May 2026

Microsoft 365

Improvements to Code Blocks in Microsoft Teams

Microsoft is improving code blocks in Teams with line numbers, retained programming language selection, and other enhancements.

17. May 2026

Microsoft 365

Rollout canceled: The option to start Teams chats with anyone by email address has been withdrawn

The feature allowing Business-licensed Teams users to start chats with external contacts by email address has been canceled. The previously announced feature is no longer available, and guest accounts remain the only way to chat with external users.

13. May 2026

Englisch + German / English / Microsoft 365

Users in Teams can now start a chat with anyone using an email address

Eligible Teams users can now start chats with anyone using an email address, even if the recipient is not on Teams. External contacts receive an email invitation and can join the conversation as guests.

28. December 2025

Englisch + German / English / Microsoft 365

Collaborative Notes in Teams Chats and a new SharePoint Embedded container IC3_TeamsContainerType

Microsoft is rolling out Collaborative Notes in Teams Chats, stored in new SharePoint Embedded containers named IC3_TeamsContainerType. Each chat note creates its own container, but the containers seem to be in development and not yet finished.

11. November 2025

Englisch + German / English / Microsoft 365

Attach/share files in Teams chats with external users

Teams is enhancing collaboration by allowing users to attach/share files in chats with external users. This feature will streamline file sharing in 1:1 and group chats, making it easier to work with guests.

19. July 2025

English / Microsoft Teams