M365 Message Center

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27.08.2026

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Microsoft Copilot (Microsoft 365)

Updated August 27, 2026: We have updated the content. Thank you for your patience. [Introduction] We’re introducing a new drafting experience in Outlook that enables users to collaborate directly with Microsoft 365 Copilot while composing email. This experience helps users move from a blank message to a polished draft more efficiently by allowing them to iterate with Copilot in chat next to the compose view, while staying in full control of the final content. [When this will happen] General availability (Worldwide): Rollout will begin in early March 2026 and is expected to complete by late April 2026. Initial availability includes Outlook on the web and the new Outlook for Windows, with Outlook for iOS, Android, and Mac following shortly. Support for classic Outlook for Windows will arrive later in 2026. A new update for draft collaboration is rolling out (available on Outlook iOS/Androi

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26.08.2026

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Microsoft Viva · Microsoft Copilot (Microsoft 365)

Updated August 26, 2026: We have updated the timeline. Thank you for your patience. [Introduction] Intelligent summaries in Copilot Dashboard help you quickly understand what’s driving Copilot adoption in your organization. These AI‑generated insights highlight key usage trends, areas of success, and opportunities where focused attention can accelerate value. Suggested prompts guide deeper exploration of underlying drivers and adoption patterns. This message is associated with Microsoft 365 Roadmap ID 557681. [When this will happen] General Availability (Worldwide): Rollout will begin in mid-August 2026 (previously early July) and is expected to complete by late September 2026 (previously mid-September). [How this will affect your organization] Who is affected Admins using the Microsoft 365 Copilot Dashboard in Microsoft Viva and Microsoft 365 What will happen Intelligent summaries will

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24.08.2026

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Microsoft Purview

Updated August 24, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re introducing endpoint Data Loss Prevention (DLP) events as a queryable data source in Data Security Investigations (DSI) in Microsoft Purview. With this update, administrators can build endpoint DLP queries directly in DSI using filters such as date range, and DSI will automatically pull files associated with those events into the investigation for analysis. This integration helps security teams examine endpoint DLP activity at scale, reducing time and effort spent triaging individual alerts and improving the ability to identify patterns and potential data exfiltration scenarios. This message is associated with Microsoft 365 Roadmap ID 558547. [When this will happen] Public Preview: Rollout begins in early June 2026 (previously late April) and completes in late June 2026 (previously ea

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17.08.2026

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Microsoft Defender XDR · Microsoft Purview

Updated August 17, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re introducing Data Security Triage Agent summaries and categorizations for Data Loss Prevention (DLP) alerts directly within the Microsoft Defender XDR portal. This update helps security analysts triage DLP alerts more efficiently by surfacing AI-generated summaries and categorizations created by the Microsoft Purview Data Security Triage Agent. Screenshot 1: Data Security Triage Agent outputs and summaries now available in DLP alerts in Microsoft Defender XDR This message is associated with Roadmap ID 558860. [When this will happen:] Public Preview: We will begin rolling out early April 2026 and expect to complete by mid-April 2026. General Availability (Worldwide): We will begin rolling out August 2027 (previously August 2026). [How this affects your organization:] Who is affected: Se

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14.08.2026

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SharePoint Online · Microsoft Copilot (Microsoft 365)

Updated August 14, 2026: We have updated this post as a reminder. We’re ready to begin the General Availability (GA) rollout of the new SharePoint experience on June 15, with deployment continuing over the subsequent months. Based on feedback from users in the preview program, we are simplifying item-keeping experiences across SharePoint and aligning on a single Favorites gesture that is consistent with the rest of Microsoft 365. As part of this change: Followed Sites will become Favorite Sites. Saved for Later for pages and news posts will become Favorites. This is a naming and experience update that will be reflected across all SharePoint surfaces where these experiences appear, providing a more consistent and streamlined experience for users across Microsoft 365. Existing followed sites and saved content will be preserved and automatically transition to the Favorites experience. Addit

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04.08.2026

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Exchange Online

Updated August 4, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re improving the RSVP experience in Outlook Mobile by visually highlighting the response a user has selected (Yes, Maybe, or No). This makes it easier for users to quickly see how they’ve responded to a meeting invitation. [When this will happen:] General Availability (Worldwide, GCC, GCC High): Rollout begins mid-September 2026 (previously August) and is expected to complete by mid-October 2026 (previously end of August). [How this affects your organization:] Who is affected: All users who access Outlook Mobile on iOS or Android Applies to Worldwide, GCC, and GCC High tenants What will happen: The selected RSVP option (Yes, Maybe, or No) will be visually highlighted Users can quickly confirm how they responded to a meeting invitation and edit as needed The feature is enabled by default N