M365 Message Center

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20.07.2026

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Microsoft Copilot (Microsoft 365) · Microsoft 365 Copilot Chat

Updated July 20, 2026: We have updated the timeline. This feature will be enabled for en-US only initially. Thank you for your patience. [Introduction:]Read Aloud is evolving from a passive listening tool into an interactive experience. By integrating Copilot Q&A, users can now ask questions and refine their understanding of document content in real time—without interrupting their workflow. This enhancement supports accessibility, improves comprehension, and helps users stay focused while gaining insights faster.A Microsoft 365 Copilot license is required to use this feature.This message is associated with Microsoft 365 Roadmap ID 523205.[When this will happen:]General Availability (Worldwide): Rollout will begin in early February 2026 (previously early January) and is expected to complete by end of July 2026 (previously early July).[How this affects your organization:]Who is affected: A

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17.07.2026

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SharePoint Online · Microsoft OneDrive

Updated July 17, 2026: Phase 1, which enables Entra B2B for new external sharing, is now fully rolled out for Production environments. To ensure a smooth transition, Phase 2, the retirement of SharePoint Online OTP, has been rescheduled to begin on October 1 and is expected to complete by October 31 for Production environments.Both Phase 1 and Phase 2 roll outs exclude GCC, GCCH & DoD. New dates for these environments will be communicated via Message center when we are ready to proceed. Thank you for your patience.[Introduction]We are retiring SharePoint One‑Time Passcode (SPO OTP) authentication in OneDrive and SharePoint starting October 2026. Beginning in May 2026, new external sharing invitations and authentication will start using Microsoft Entra B2B instead of SPO OTP. This transition simplifies external collaboration, aligns authentication with Microsoft identity standards, and en

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17.07.2026

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Microsoft Purview

Updated July 17, 2026: We have updated the timeline. Thank you for your patience. [Introduction] To help organizations better protect sensitive files in transit, we're introducing a public preview for extending Microsoft Purview Data Loss Prevention (DLP) policies to the network through integration with Entra Global Secure Access Internet Access. Through this integration, organizations can intercept and inspect file traffic at the network layer and enforce actions based on DLP policy conditions. It helps prevent sensitive files from being shared with untrusted cloud applications through browsers, apps, APIs, add-ins, and more—including generative AI platforms, cloud storage, and content-sharing services—while managing alerts and incidents through Purview and Microsoft Defender.This message is associated with Roadmap ID 522096. [When this will happen:] Public preview: Rollout begins mid-N

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16.07.2026

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Exchange Online

Updated July 16, 2026: We have updated the timeline. Thank you for your patience. [Introduction]We’re introducing a new Follow option for meetings in Outlook Mobile. This feature helps users stay informed when they cannot attend by prompting organizers to record the meeting and by ensuring followers receive key updates and follow‑up items.[When this will happen]General Availability (Worldwide): Rollout will begin in early August 2026 (previously mid-July) and is expected to complete by late August 2026 (previously mid-August).[How this affects your organization]Who is affectedAll users who schedule or respond to meetings in Outlook Mobile. Attendees will only see the option to respond with Follow if a meeting has two or more participants and when the organizer has requested responses.What will happenA new Follow option will appear as the third option in the mobile RSVP menu. To select “M

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15.07.2026

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Exchange Online

Updated July 15, 2026: We have updated the timeline. Thank you for your patience. [Introduction] Microsoft is retiring the -Credential parameter used when connecting to Exchange Online PowerShell. Starting with module versions released in December 2026 and later, the -Credential parameter will be removed from both Connect-ExchangeOnline and Connect-IppsSession cmdlets. Organizations using this parameter in automation scripts must migrate to a supported authentication method before that date. This change improves security by moving away from legacy authentication methods that do not support modern protections such as multifactor authentication (MFA). [When this will happen:] The -Credential parameter will be removed from Connect-ExchangeOnline and Connect-IppsSession cmdlets in Exchange Online PowerShell module versions released beginning end of year 2026 (previously July). A separate ser

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14.07.2026

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Microsoft Purview

Updated July 14, 2026: We have updated the timeline. Thank you for your patience.[Introduction] Microsoft Purview is introducing Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. This new capability allows admins to test and validate custom classifiers on production data before publishing. Simulation Mode enables admins to optimize classifier logic before deployment, helping in reducing false positives, scanning latency, and noisy matches. Admins will access simulation controls and classifier health insights directly in the Microsoft Purview compliance portal, making it easier to monitor and improve classifier performance in one centralized location.This message is associated with Roadmap ID 523201.[When this will happen:] Public Preview: Rollout begins mid-October 2026 (previously late June), completes by early November 2026 (previously en