M365 Message Center

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22.05.2026

Services

Microsoft Copilot (Microsoft 365) · Microsoft 365 Copilot Chat

Updated May 22, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress.This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users.This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from December 12, 2025 (previously December 3), to end of June 2026 (previously end of April) GCC: Rolling out from January 19, 2026 (previously January 3), to end of June 2026 (previously end of April) GCC High: Rolling out from January 19, 202

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21.05.2026

Handlung bis

30.03.2026

Services

Microsoft 365 apps

Updated May 21, 2026: Phasing out to Legacy Auth Token (EAT) has been initiated and will complete by June 8th 2026. Thank you for your patience. [Introduction]We’re retiring the use of external access tokens for actionable messages and transitioning to Microsoft Entra-based authentication. This update enhances security and aligns with modern identity standards, providing a more robust and compliant experience for actionable messages. [When this will happen]This change takes effect on May 15, 2026. After this date, external access tokens will no longer be supported.[How this affects your organization]Who is affected:Organizations using actionable messages that currently rely on external access tokens.What will happen: Actionable messages that depend on external access tokens will fail after May 15, 2026. All integrations and workflows using actionable messages must adopt Microsoft Entra a

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19.05.2026

Services

Microsoft Teams · Microsoft 365 apps

Updated May 19, 2026: We are updating this post as an informational reminder to help ensure you are informed and can proactively mitigate potential connectivity issues. Please review your configurations. Thank you for your patience. [Introduction] To improve security and trust across Microsoft cloud services, Microsoft introduced the cloud.microsoft domain in early 2023. This unified, dedicated DNS domain space hosts Microsoft’s first-party authenticated SaaS products and experiences. As part of this transition, Microsoft Teams is now available at https://teams.cloud.microsoft, in parallel with its previous domain. This change enhances security by using Microsoft’s exclusive top-level domain, .microsoft, which helps prevent spoofing and builds user trust. Learn more by reading the 2023 blog post Introducing cloud.microsoft: a unified domain for Microsoft 365 apps and services. [When this

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19.05.2026

Services

Microsoft Copilot (Microsoft 365) · Microsoft 365 Copilot Chat

Updated March 20, 2026: We have paused release of this feature at this time. We will update this post when we are ready to move forward. Thank you for your patience. IntroductionMicrosoft Edge for Business will soon support Rewrite, a new feature powered by Microsoft 365 Copilot Chat. This capability helps users draft and rephrase editable text directly within Edge, enhancing productivity and writing quality. Users can access Rewrite by highlighting editable text and right-clicking to open the context menu.This message is associated with Microsoft 365 Roadmap ID 420335.When this will happenGeneral Availability (Worldwide): We will communicate via Message center when we are ready to proceed. How this affects your organizationRewrite will be enabled by default for Edge for Business users. Users can access Rewrite by highlighting editable text and right-clicking to open the context menu.If

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19.05.2026

Services

Microsoft Teams

Updated May 19, 2026: We have updated the timeline. Thank you for your patience.[Introduction] To support frontline workers using personal devices, Microsoft is introducing a dynamic onboarding wizard for Microsoft Teams. This experience is designed to simplify setup on Android and iOS devices, especially in environments with security policies like multi-factor authentication (MFA) and mobile application management. The wizard adapts automatically to your organization’s policies, helping drive secure and efficient Bring Your Own Device (BYOD) adoption.This message is associated with Roadmap ID 523213. [When this will happen:] Public Preview: Rollout begins in late November 2025 and is and expected to complete by mid-January 2026General Availability: Rollout begins in mid-August (previously mid-June) and is and expected to complete by mid-September (previously early July). [How this affec

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18.05.2026

Services

Microsoft 365 suite · Microsoft Copilot (Microsoft 365)

Updated March 9, 2026: We have updated the timeline. Thank you for your patience. [Introduction:] Microsoft Edge for Business will soon support summarization and contextual grounding with Microsoft 365 Copilot Chat. This enhancement enables users to ask Copilot questions about multiple open browser tabs, Microsoft 365 documents (such as Word, Excel, PowerPoint), and YouTube videos directly from the Edge side pane. This message is associated with Microsoft 365 Roadmap ID 496364, 499423, and 499424. [When this will happen:] General Availability (Worldwide): We will begin rolling out in late April (previously mid-March). [How this affects your organization:] Who is affected: Users signed in to Microsoft Edge for Business with their Entra ID and who have access to Microsoft 365 Copilot.What will happen: Users will be able to ask Copilot questions about open browser tabs, Microsoft 365 docume