In a rapid change of Office 365, Microsoft sends to Tenant Admin’s the news about what is changing and what is coming in Office 365.

This is the 468th email that Microsoft has sent to Tenant Admin’s Newsletter with Office 365 changes.


Resume “Summary” from Microsoft 365 Copilot:

Microsoft 365 Message center shared a weekly digest covering major updates and new features across Microsoft 365, Teams, Outlook, SharePoint, Dynamics 365, Power Platform, and Copilot, with rollout dates ranging from May to August 2026.

Key updates include new Copilot features (AI-driven summaries, chat enhancements, scheduled prompts, and structured document generation), Teams enhancements (meeting controls, file sharing, AI notes, interpreter improvements, recap access, and event resiliency), and Outlook improvements (S/MIME certificate support, external email tag, and reaction handling).

Security and compliance changes involve faster DLP policy sync, updated BitLocker mitigation guidance, Purview enhancements for AI observability, insider risk management, and auto-labeling for Azure data sources.

Admins are advised to review new controls for app and agent management, data sharing, and agent security, as well as prepare for upcoming retirements (Power Platform Security Score, legacy PDF viewer) and billing changes (High Volume Email).

Important deadlines include the retirement of external access tokens for actionable messages by May 15, 2026, blocking of Exchange Web Services requests starting October 1, 2026, and new PDF viewer default rollout in October 2025 with legacy viewer retirement in September 2026.

Unresolved issues include paused rollouts for some features (Planner integration, Edge Rewrite, Purview DLP OCR, auto-labeling), postponed Dynamics 365 AI scheduling, and the need for admins to update scripts or review documentation for several upcoming changes.


This Weekly digest is intended to reach the Administrators of Microsoft Office 365 within the latest changes that are happening to Office 365.

 

Below is an example that can be applied to your tenant, because these emails are based on the services that you have in your Tenant and subscription.

 

View a summary of the updates.

 

Microsoft  

Message center announcements

May 18, 2026 – May 24, 2026

 

 

Major updates

 

Microsoft Teams: Proximity join support for presenters in Teams events from Teams Rooms on Windows and Android

MC1319213 | May 22 – Proximity join support for presenters in Microsoft Teams events using Teams Rooms on Windows and Android will roll out worldwide in June 2026. It enables quick connection from personal devices to nearby Teams Rooms, simplifying presentations without policy changes. No action is required; inform users and update training.
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Take action: Mitigation guidance updated with a new script for CVE 2026 45585

MC1318295 | May 21 – Microsoft has updated the mitigation guidance in CVE-2026-45585, a Windows BitLocker security feature bypass vulnerability. The updated guidance replaces previously documented manual mitigation steps with a script that helps reduce exposure…
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(Updated) Microsoft Teams: A refreshed in-meeting experience with simpler controls and a smarter share panel

MC1317197 | May 21 – Microsoft Teams is updating its meeting experience with simplified, center-aligned controls, a redesigned share panel featuring live previews and two-step share confirmation, and user customization options. Rollout begins July 2026, affecting Windows, Mac, and web users. No tenant-level disable option; communication and policy updates recommended.
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Action Required: Update active Exchange Web Services Applications

MC1318047 | May 21 – In 2018,we announcedthat we were no longer making feature updates to Exchange Web Services (EWS) in Exchange Online, and we advised developers to move to Microsoft Graph. In September 2023, we announced that on October 1, 2026, we will start blocking EWS requests to Exchange…
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(Updated) Retirement of external access token for actionable messages – moving to Microsoft Entra authentication

MC1189663 | May 21 – External access tokens for actionable messages will be retired by May 15, 2026, replaced by Microsoft Entra authentication to enhance security. Organizations must update integrations before this date, as messages using legacy tokens will fail. The phase-out completes by June 8, 2026.
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Microsoft Teams: Attend Microsoft webinars from Teams Rooms on Android

MC1317839 | May 21 – Microsoft Teams Rooms on Android with Teams Rooms Pro will support joining webinars and structured meetings as attendees starting late June 2026. Rooms can use attendee features like chat and reactions without needing personal devices, optimized for various room setups and large events.
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(Updated) 2026 Microsoft 365 Packaging Update

MC1304290 | May 20 – Starting mid-June 2026, Microsoft 365, Office 365, and EMS suites will receive enhanced security features like Microsoft Defender Plan 1, URL time-of-click protection, Intune improvements, and +50GB Exchange Online storage. Rollout completes by August 1, 2026, with new alerts and policy controls for admins.
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(Updated) Microsoft Purview eDiscovery: Naming and description fields will restrict certain special characters

MC1282562 | May 20 – Starting mid-June 2026, Microsoft Purview eDiscovery will restrict special characters (+, =, @, /, *) in naming and description fields for new or edited cases, holds, searches, and review sets. Existing entities remain unaffected. No admin action is required, but users should update naming practices accordingly.
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Microsoft Teams: Front-of-room view control for Webinars and structured meetings in Teams Rooms on Android

MC1316231 | May 19 – Microsoft Teams Rooms on Android will default front-of-room displays to attendee view during webinars and structured meetings starting June 2026. Presenters keep full control via the console, while in-room participants see a clearer view. The feature requires a Teams Rooms Pro license and is enabled by default with no impact on remote attendees.
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Updated Secure Boot status report in Windows Autopatch

MC1315905 | May 19 – The Secure Boot status report in Windows Autopatch has been updated to offer deeper, device-level insights into Secure Boot certificate status, trust configuration, and readiness. New insights—such as confidence level, alerts, and detailed certificate reporting—can help you make more informed, targeted decisions…
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M365 and Microsoft Teams: Unified management of app and agent availability in Teams, Outlook, and the Microsoft 365 app

MC796790 | May 19 – Microsoft is unifying app and agent availability management across Teams, Outlook, and Microsoft 365 admin centers to ensure consistent settings. The rollout begins September 2025 in phases, with automatic unification later. Admins can manage availability from either portal, streamlining app policies and improving efficiency.
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Outlook on the web: New setting to use data classification services for DLP evaluation

MC1315220 | May 18 – Outlook on the web will gain a new organization-level setting to switch DLP evaluation from Exchange-based to Data Classification Services (DCS)-based, enabling enhanced features like improved policy tips and “Wait to send.” Rollout starts mid-May 2026, with admins controlling the change via PowerShell.
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Microsoft Copilot Studio – Classic agent creation moves from Teams to web experience, retiring June 30, 2026

MC1315217 | May 18 – Classic agent creation in Microsoft Copilot Studio is moving from the Teams app to the web app, retiring Teams-based creation on June 30, 2026. Existing agents remain functional, and users will be redirected to the web app. No compliance or security changes; organizations should prepare by transitioning users and updating documentation.
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Additional updates

 

Microsoft Teams: In‑meeting toggle to turn Meeting AI on or off

MC1319216 | May 22 – Microsoft Teams will add an in-meeting toggle for licensed organizers and presenters to turn Meeting AI (Copilot, Facilitator, recap) on or off during live meetings, respecting tenant policies. This feature rolls out June 2026 and links AI use with transcription settings for flexible control.
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Interact with your favorite apps on Teams using Slash ( / ) Commands

MC1319214 | May 22 – Microsoft Teams will roll out slash (/) commands for apps in the compose box from late May to late July 2026, allowing users to invoke app functions inline. This affects all Teams users and app developers, requires no admin changes, and apps must update manifests to support commands.
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Learning Agent in Microsoft 365 Copilot to become generally available

MC1319212 | May 22 – The Learning Agent in Microsoft 365 Copilot is becoming generally available in June 2026, enhancing AI-driven upskilling with personalized learning plans, skill assessments, and role play scenarios. It integrates across Microsoft 365 apps, requires specific licenses, offers admin controls, and provides usage reporting for enterprise deployment.
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Microsoft Outlook: External email tag now supported in Inbox Rules

MC1319208 | May 22 – Outlook Inbox Rules now support the External email tag from the ExternalInOutlook feature, allowing users to organize and prioritize external emails automatically. This rollout begins in June 2026 for all Outlook platforms with no required user action, enhancing rule management and productivity.
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(Updated) Microsoft 365 Copilot: Ground Chat in SharePoint Lists using Context IQ

MC1235746 | May 22 – Microsoft 365 Copilot will allow users to search and insert SharePoint Lists into chat prompts via Context IQ, improving response accuracy. This feature, enabled by default, rolls out worldwide from late March to early June 2026 and requires a Copilot license. No admin action is needed.
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PowerPoint for the web: Create a presentation with Copilot directly from the PowerPoint web app

MC1311972 | May 22 – Starting mid-May 2026, PowerPoint for the web will let users with a Microsoft Copilot license create presentations directly using Copilot. This feature is enabled by default, requires no admin changes, and is immediately available upon opening the app. No action is needed to prepare.
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(Updated) Microsoft 365 Copilot: Session persistence enhancement for Copilot chat

MC1174856 | May 22 – Microsoft 365 Copilot chat will preserve conversations by creating session entries in the navigation pane upon prompt submission, allowing users to return without losing progress. This update, rolling out from December 2025 to June 2026, requires no admin action and improves chat reliability across all environments.
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SharePoint Online: Storage quota enforcement updated to align with license limits

MC1310684 | May 22 – SharePoint Online will update storage quota enforcement by late May to June 2026, aligning user quotas with license limits. Users exceeding licensed storage will enter read-only mode. Admins should identify over-quota users, take corrective actions, and inform support teams. No changes occur for users within limits.
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(Updated) Microsoft 365 Copilot: Schedule prompts in Agent Builder

MC1302906 | May 22 – Microsoft 365 Copilot’s Agent Builder will allow users to create scheduled workflows that run prompts automatically on various recurrence patterns. This feature, paused for rollout, enables automation of routine tasks per user, respects existing policies, and offers full user control over workflows. No admin action is needed.
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(Updated) Introducing Surveys Agent and Copilot Chat in Microsoft Forms

MC1229954 | May 22 – Microsoft Forms will integrate Microsoft 365 Copilot Chat and Forms Agent by late May 2026, providing AI-driven form creation, refinement, invitation drafting, and result analysis for users with a Copilot license. The feature is on by default, requires no action, and aligns with existing Copilot policies.
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Microsoft Viva Glint: Custom confidentiality statements

MC1318856 | May 22 – Microsoft Viva Glint will allow Company Admins to replace the default confidentiality statement with custom, multilingual messages starting June 2026. This optional feature helps align survey messaging with internal policies without changing data processing. Admins control the configuration; no action is required.
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PowerPoint for Mac: ‘Prepare for Questions’ skill in Copilot

MC1318854 | May 22 – The “Prepare for Questions” skill in Copilot for PowerPoint for Mac will launch worldwide in late May 2026. It helps users anticipate audience questions to improve presentations. Enabled by default, IT admins cannot disable individual skills. No action is required, but informing users and updating documentation is recommended.
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PowerPoint for Windows Desktop: ‘Prepare for Questions’ skill in Copilot

MC1318852 | May 22 – PowerPoint for Windows Desktop will introduce the “Prepare for Questions” Copilot skill in late May 2026, helping users anticipate audience questions and improve presentations. It is enabled by default for eligible users, with no admin control over individual skills. No action is required from organizations.
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PowerPoint for Web: ‘Prepare for Questions’ skill in Copilot

MC1318851 | May 22 – The “Prepare for Questions” skill in Copilot for PowerPoint for Web helps users anticipate audience questions and improve presentations. It will roll out worldwide in late May 2026, is enabled by default, and requires no action from IT admins. Users should be informed about this feature.
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(Updated) Microsoft Teams: Select multiple messages to forward

MC1199767 | May 21 – Microsoft Teams will introduce Multi-Select Forward, allowing users to forward up to five messages together in one message, preserving context. Rolling out from January to June 2026 across desktop and web, this feature is on by default, requires no admin action, and enhances message sharing and collaboration.
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New file download manager in Teams

MC1318249 | May 21 – Microsoft Teams will introduce a new file download manager starting June 2026, with notifications auto-dismissing after about 4 seconds. Users can still open or locate files easily. The update applies to all users by default, requires no action, and does not change file permissions or security.
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Microsoft Purview | Data Security Posture Management: New data security agent in DSPM

MC1318248 | May 21 – Microsoft Purview’s Data Security Posture Management (DSPM) is now generally available, offering admins centralized insights, risk identification, and remediation guidance across Microsoft 365. The new data security posture agent enhances data analysis without disrupting existing configurations. No action is required, but reviewing DSPM features is recommended.
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(Updated) New Outlook for Windows: LDAP support for S/MIME certificate lookup

MC1310680 | May 21 – New Outlook for Windows supports LDAP directories for S/MIME certificate lookup, enabling secure encrypted email with external partners. Admins configure LDAP via Exchange Online PowerShell; users add directories in Outlook settings. Rollout starts late May 2026 worldwide, early June in GCC. Feature enabled by default, no authentication supported.
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(Updated) Microsoft Teams: Distinguish invites among Attendee, Presenter, and Co-organizer emails

MC1009930 | May 21 – Microsoft Teams will send separate event invites based on participant roles—attendee, presenter, or co-organizer—starting mid-2026. Organizers will receive emails explaining roles, enabling distinct invites for town hall attendees. The rollout requires no admin action but notifying users is recommended.
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Microsoft Teams: Quick Share for images

MC1318125 | May 21 – Microsoft Teams will introduce a Quick Share option for images, enabling faster sharing or copying of image links from chats, channels, and tabs. This feature, respecting existing permissions, rolls out worldwide from early to late June 2026, is enabled by default, and requires no admin controls or user action.
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Microsoft Teams: New search experience for cloud files in the file attach picker

MC1318124 | May 21 – Microsoft Teams will enable searching for cloud files directly in the attach file picker, improving quick sharing in chats and channels. This rollout starts June 2026 for Windows, Mac, and web users, showing only files users have permission to access, with no changes to sharing policies.
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Microsoft Copilot Studio – Use code interpreter on SharePoint sources in agent conversations

MC1318109 | May 21 – We are announcing the ability to use code interpreters on SharePoint sources in agent conversations in Microsoft Copilot Studio. This feature will be available in general availability on May 31, 2026. How does this affect me? This feature enables Copilot Studio agents to generate and execute Python code to respond to user prompts. Code interpreter supports tasks such as data preparation, statistical analysis, table joins, forecasting, and chart generation. These tasks…
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Dynamics 365 Customer Service- Generate optimized schedule and shift plans using AI for workforce management (Preview)

MC1310420 | May 21 – Update: Release of this feature has been postponed; we will announce a new date in the future. We are announcing the ability to generate optimized schedule and shift plans using AI for workforce management in Dynamics 365 Customer Service. This feature will reach public preview on May 31, 2026. How does this affect me? With this feature, the Scheduling Agent automates and optimizes contact center scheduling, reducing manual work for supervisors and ensuring…
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(Updated) Microsoft 365 Copilot: Copilot chat pane and Summary feature in OneNote Mobile (Android)

MC1309746 | May 21 – Microsoft 365 Copilot (Premium) users on OneNote Mobile (Android) will get a new Copilot chat pane with a Summary feature to generate concise summaries and ask questions about notes. Rollout starts late May 2026, completing by late June, with existing Copilot policies applying.
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(Updated) Outlook: Support for storing S/MIME certificates in contacts in new Outlook

MC1302908 | May 21 – The new Outlook for Windows will support storing S/MIME certificates directly in Contacts, enabling encrypted emails and continuity from classic Outlook. This feature rolls out worldwide late-May 2026, requires no admin setup, and improves secure communication for organizations using S/MIME encryption.
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Microsoft Teams: Unblock users to send message while file is uploading in the background

MC1317836 | May 21 – Microsoft Teams will allow users to send messages while files upload asynchronously in the background, improving real-time collaboration. This update, rolling out worldwide in June 2026, affects all platforms and requires no action. Compliance and file-sharing policies remain unchanged.
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(Updated) Microsoft Purview for agents: AI observability and insider risk management now generally available

MC1280556 | May 21 – Microsoft Purview for agents, including DSPM – AI Observability and Insider Risk Management, will be generally available worldwide from mid-June to end of July 2026. It enables Microsoft 365 E7 or Agent 365 admins to monitor AI agent activity, assess risks, enforce governance, and manage insider risks with privacy controls.
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Microsoft Purview | Data Loss Prevention: Faster policy sync (2 hours to 30 minutes)

MC1317834 | May 21 – Microsoft Purview Data Loss Prevention policy sync time will improve from up to 2 hours to 30 minutes, enabling faster enforcement across Microsoft 365 services. The change, rolling out worldwide from late May to late June 2026, requires no admin action and is enabled by default.
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(Updated) Microsoft Purview | Insider risk management- Insider risk management for risky agents

MC1200579 | May 21 – Microsoft Purview’s Insider Risk Management now extends to AI agents, enabling detection and remediation of risky agent activities. Features include integration with Copilot Studio and Azure AI Foundry, risky AI usage policies, and agent workflow governance. Public preview starts December 2025; general availability by July 2026.
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(Updated) High Volume Email for Microsoft 365 now generally available

MC1243552 | May 21 – High Volume Email (HVE) for Microsoft 365 is now generally available with billing starting June 1, 2026, at $42 per million recipients. Admins must configure billing to avoid service disruption. HVE supports large-scale internal emails via dedicated SMTP endpoints and includes new management and reporting features.
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Power Platform admin center – Manage agent security with enhanced admin controls

MC1317198 | May 20 – We are announcing the ability to Manage agent security with enhanced admin controls in Power Platform admin center. This feature is available in public preview.How does this affect me?This feature introduces advanced governance controls that allow administrators to configure security and compliance settings at the environment or environment group level within the Power Platform admin center.These controls work by configuring new settings for agent sharing, turning off…
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Microsoft Purview | Data Security Investigations: Proactive AI insights in Data Security Posture Management

MC1317196 | May 20 – Microsoft Purview’s Data Security Investigations (DSI) now integrates AI-powered insights directly into Data Security Posture Management (DSPM) to analyze potential data exfiltration risks across sensitive data categories, enhancing early risk detection, investigation efficiency, and response. Rollout begins June 2026, requiring DSI and DSPM configuration.
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Microsoft Copilot Notebooks: Introducing Infographics

MC1317195 | May 20 – Microsoft Copilot Notebooks will introduce Infographics, enabling users to create visual summaries from notebook content using grounded references. Rolling out from May to July 2026, this default-enabled feature enhances clarity and productivity without disrupting workflows. No action is required, but informing users and reviewing policies is recommended.
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(Updated) Use Copilot to explain selected slide content in PowerPoint Live

MC1280558 | May 20 – Starting mid-June 2026, Microsoft Teams PowerPoint Live will let attendees select slide text for private, on-demand Copilot explanations of terms and acronyms without disrupting the presenter. This feature is on by default for tenants with Microsoft 365 Copilot (Premium) and requires no admin action.
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Microsoft Copilot Studio – See evaluation results in real time

MC1317168 | May 20 – We are announcing the ability to see evaluation results in real time in Microsoft Copilot Studio. This feature will reach general availability on May 31, 2026.How does this affect me?This feature enables real-time processing and visualization of evaluation results while an evaluation run is in progress. Seeing results in real time improves visibility into long-running evaluations and allows users to monitor execution, validate behavior early, and iterate faster. During…
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Dynamics 365 Contact Center – Enable AI-assisted time-off and swap requests

MC1317126 | May 20 – We are announcing the ability to enable AI-assisted time-off and swap requests in Dynamics 365 Contact Center. This feature will reach public preview on May 30, 2026.How does this affect me? This feature enables an AI-assisted solution that provides automation for workforce schedules and approvals, and governance across time-off requests, shift bidding, and shift swapping. Supervisor oversight is supported throughout, along with configurable approval rules, and agent-driven…
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(Updated) Microsoft Purview | Information Protection: Auto-labeling for Microsoft Azure Storage and Azure SQL

MC933531 | May 20 – Auto-labeling for Microsoft Azure Storage and Azure SQL has paused its GA release. It allows extending sensitivity labels to various Azure and non-M365 data sources via auto-labeling policies. Public preview was planned for July 2025. Admins can configure labeling by default; some older labeling methods will be deprecated.
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(Updated) Microsoft 365 Copilot: Copilot chat pane and Summary feature in OneNote Mobile (iPhone)

MC1307979 | May 20 – Microsoft 365 Copilot (Premium) is adding a Copilot chat pane with a Summary feature to OneNote Mobile on iPhone, enabling users to generate summaries and ask questions about notes. Rollout begins late May 2026, completing by late June, with existing Copilot policies applying. No admin action required.
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(Updated) PowerPoint for Windows desktop: “Review this presentation” skill in Copilot

MC1309735 | May 20 – The “Review this presentation” skill in PowerPoint Copilot for Windows desktop is now generally available. It analyzes slides and offers improvement suggestions for structure, clarity, and storytelling without applying changes automatically. No admin setup is needed, and availability respects existing Copilot access controls.
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(Updated) PowerPoint for Windows desktop: “Visualize this slide” skill in Copilot

MC1309731 | May 20 – The “Visualize this slide” skill in Copilot for PowerPoint on Windows desktop, launching mid-May 2026, transforms text slides into polished visuals. Enabled by default for eligible users, no admin action is needed. Users can choose to apply visualizations, but admins cannot disable the skill itself.
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(Updated) PowerPoint for the web: “Review this presentation” skill in Copilot

MC1309737 | May 20 – The “Review this presentation” skill in PowerPoint for the web Copilot is now generally available. It analyzes slides and suggests improvements for structure, clarity, and storytelling without applying changes automatically. No admin setup is needed, and availability depends on existing Copilot and Anthropic model access.
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(Updated) PowerPoint for Mac: “Visualize this slide” skill in Copilot

MC1309732 | May 20 – The “Visualize this slide” skill in Copilot for PowerPoint on Mac, launching mid-May 2026, transforms text slides into polished visuals. Enabled by default, it respects existing policies. No admin action is needed, but admins can control related AI model access. Users can choose to apply the feature.
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(Updated) PowerPoint for the web: “Visualize this slide” skill in Copilot

MC1309733 | May 20 – The “Visualize this slide” skill in Copilot for PowerPoint for the web, launching mid-May 2026, transforms text slides into visually rich layouts. Enabled by default for eligible users, no admin action is needed. Users can choose to apply the feature, which respects existing compliance and admin controls.
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(Updated) PowerPoint for Mac: “Review this presentation” skill in Copilot

MC1309736 | May 20 – The “Review this presentation” skill in PowerPoint for Mac Copilot is now generally available. It analyzes slides to suggest improvements in structure, clarity, and storytelling without applying changes automatically. No admin setup is needed, and availability depends on existing Copilot and Anthropic model access.
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(Updated) Microsoft Purview Data Loss Prevention: Optical character recognition for images in Office and PDFs on Windows

MC1310681 | May 20 – Microsoft Purview DLP on Windows now supports OCR to scan embedded images in Office documents and PDFs for sensitive data, closing a detection gap. Rollout is paused, resuming late May 2026. Enabling OCR incurs Azure AI service costs and requires specific client versions, updates, and admin configuration.
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Power Automate – Create and visualize custom KPIs in the process intelligence experience

MC1310386 | May 20 – We are announcing the ability to create and visualize custom KPIs in the process intelligence experience in Power Automate. This feature will reach public preview on June 31, 2026.How does this affect me?The process intelligence experience allows flexible metric creation with seamless visualization integration. You can create custom metrics using configurable formulas that can incorporate existing process data, standard KPIs, and mathematical operations. Key…
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New flexibility and choice for sharing organizational data across Microsoft 365 and Viva apps

MC1316232 | May 19 – Microsoft 365 tenant admins can now control which public organizational attributes are shared with Microsoft 365 Profile and specific Viva apps. Six core attributes remain shared by default. This rollout starts May 2026 with no impact on existing configurations, allowing more flexible, attribute-level data sharing via MODIS.
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Microsoft Purview Data Security Investigations: Notifications and enhanced search

MC1316229 | May 19 – Microsoft Purview Data Security Investigations will add notifications for key events and improved query building, reducing manual monitoring and speeding investigations. These AI-enhanced features roll out worldwide from early to late June 2026, require no admin action, and improve compliance visibility and investigation efficiency.
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Keyboard shortcut dialog has search functionality

MC1316228 | May 19 – Microsoft Teams is adding search functionality to the Keyboard shortcuts dialog, allowing users to find shortcuts by action name or key combination. This feature, enabled by default, will roll out worldwide from June to July 2026 for Windows, Mac, and web versions, improving shortcut discoverability and customization.
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Dynamics 365 Commerce – Display distance in kilometers on the Store Commerce app

MC1301490 | May 19 – Update: This feature will now reach general availability on June 16, 2026.We are announcing the ability to enable distance units (in kilometers or miles) in the Store Commerce store locator and inventory lookup for metric-region retailers. in Dynamics 365 Commerce. This feature will reach general availability on June 5, 2026.How does this affect me?Store Commerce will now display distances in the correct unit (kilometers or miles) based on each…
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(Updated) Microsoft 365 Copilot: User-day export for Copilot dashboard metrics in public preview

MC1222978 | May 19 – Microsoft 365 Copilot dashboard adds a public preview of a user-day export option for de-identified, daily aggregated usage metrics over 28 days, enabling more granular insights. Available mid-May 2026 with a minimum of 50 licenses, it requires company-level access and uses existing Viva Feature Access Management controls.
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Microsoft Power Automate – Support for normalized schema import for data ingestion

MC1296281 | May 19 – We are announcing the ability to ingest data in a normalized data structure format for process mining in Power Automate. This feature will reach general availability on June 30, 2026. How does this affect me? With this feature, Power Automate Process Mining supports the case-event entity-based data structure in addition to a normalized form of attributes. This accelerates the ingestion process and reduces storage capacity needed for the transformation and import to process…
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Dynamics 365 Customer Service – Enable enhanced screen recording controls for admins

MC1302880 | May 19 – We are announcing the ability to enable enhanced screen recording controls for admins in Dynamics 365 Customer Service. This feature will reach general availability on June 30, 2026.How does this affect me?This enhanced version of screen recording provides greater flexibility and control for organizations that require more granular recording behavior. It expands support for manual start and stop recording in non-voice scenarios such as chat, case-in-focus, and queue-presence…
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Microsoft Copilot Studio – Group and analyze the performance of user questions by themes

MC1295106 | May 19 – Update: Release of this feature has been updated.We are announcing the ability to group and analyze the performance of user questions by themes in Microsoft Copilot Studio. This feature will reach general availability on July 29, 2026.How does this affect me?With this feature, makers can get a more granular level understanding of how their agent performs with AI-generated lists that analyze all user questions that trigger generative answers and group them to…
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(Updated) Product transitions to the cloud.microsoft domain – September 2025

MC1162275 | May 19 – Microsoft Teams now uses the secure cloud.microsoft domain to enhance trust and prevent spoofing. Users are auto-redirected with no action needed. Admins should update references, educate users, and ensure network access to *.cloud.microsoft and *.static.microsoft. Redirects can be disabled via Teams Admin portal.
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(Updated) Rewrite with Microsoft 365 Copilot Chat coming soon to Edge for Business users

MC1146821 | May 19 – Microsoft Edge for Business will soon include the Rewrite feature powered by Microsoft 365 Copilot Chat, enabling AI-assisted text drafting and rephrasing via right-click. Release is paused currently. Admins can manage it with the InlineComposeEnabled policy, and DLP restrictions may block its functionality. No immediate admin action needed.
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(Updated) Microsoft Teams: Meeting organizers can automatically start transcription without recording

MC1283816 | May 19 – Microsoft Teams now lets meeting organizers automatically start transcription without recording by selecting “Transcribe only.” This feature, rolling out from late April to early June 2026, supports compliance and accessibility, requires transcription enabled in meeting policies, and needs no extra licensing.
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(Updated) Microsoft Viva Copilot Analytics: Daily Copilot usage snapshot with fresh data

MC1314949 | May 19 – Microsoft Viva Insights introduces a new Power BI report, “Microsoft 365 Copilot latest usage snapshot,” providing daily updated Copilot usage data with three months’ history for analysts. Available from July 2026 (preview) and November 2026 (general), it requires at least 50 Copilot licenses and the Insights Analyst role, enabling detailed adoption analysis without admin setup.
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(Updated) Microsoft Teams introduces efficiency mode to improve app responsiveness

MC1287373 | May 19 – Microsoft Teams will roll out Efficiency Mode by late May 2026 to improve performance on hardware-constrained devices. Enabled by default, it adjusts video resolution and app behavior to enhance responsiveness. Users can opt out via settings. No action is needed unless customization is desired.
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(Updated) Microsoft Teams: Sharing recap access

MC1289724 | May 19 – Microsoft Teams will enhance recap sharing by allowing meeting organizers to grant access to recordings, transcripts, AI summaries, and notes when sharing recap links. Rollout begins late May 2026, with no admin action required. Attendees can share links, but non-meeting recipients must request access.
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(Updated) Microsoft Teams frontline BYOD onboarding wizard

MC1184994 | May 19 – Microsoft is introducing a dynamic onboarding wizard for frontline workers using personal Android or iOS devices with Microsoft Teams. It supports MFA and adapts to security policies to simplify BYOD setup. Public preview starts late November 2025; general availability begins mid-August 2026. Preparation includes reviewing admin documentation.
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Dynamics 365 Sales – Get sales operations insights in Sales Research Agent

MC1315879 | May 19 – We are announcing the ability to get sales operations insights in Sales Research Agent in Dynamics 365 Sales. This feature reached general availability on April 30, 2026. How does this affect me? With the sales operations business function, you get an AI-powered experience designed specifically for sales and revenue operations scenarios. It enables unified analysis from data across multiple data sources, including Dynamics 365 Sales data and operational data from Fabric…
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(Updated) Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding

MC1187682 | May 18 – Microsoft Edge for Business will add Microsoft 365 Copilot Chat support for summarization and contextual grounding across browser tabs, Microsoft 365 documents, and YouTube videos, rolling out worldwide from late April 2026. The feature is off by default, respects DLP policies, and requires Entra ID sign-in and Copilot access.
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(Updated) Microsoft Purview: Data Security Investigations – analyze files tied to endpoint DLP alerts

MC1258000 | May 18 – Microsoft Purview’s Data Security Investigations (DSI) will integrate endpoint Data Loss Prevention (DLP) events as a queryable data source, enabling admins to analyze associated files automatically. Rollout begins early June 2026 with no user impact or required admin action. This enhances investigation efficiency using AI tools.
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(Updated) Microsoft Purview | Microsoft Foundry integration with Microsoft Purview for AI

MC1202976 | May 18 – Microsoft Foundry integrates with Microsoft Purview to enable secure access, processing, and storage of AI prompt and response data. This supports compliance, risk management, auditing, and data lifecycle management. Public preview starts mid-December 2025; worldwide rollout completes mid-June 2026. Admins must opt-in and enable the feature.
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Update to agents in SharePoint: Simpler launch experience and new site AI settings

MC1315219 | May 18 – SharePoint updates simplify agent management with new Site AI settings, letting site owners control highlighted agents. Approved agents won’t appear in the Agent Picker and should be placed on pages. Rollout starts mid-November 2024, completing by June 2026, affecting all SharePoint Online tenants.
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SharePoint Pages: Heading 1 (H1) option now available in web part title areas

MC1315218 | May 18 – SharePoint Pages will add Heading 1 (H1) as an optional heading level in web part title areas to enhance accessibility and semantic structure. The rollout starts mid-May 2026 for Targeted Release and late May 2026 for General Availability. No admin action is needed; existing pages remain unchanged.
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Dynamics 365 Contact Center – Secondary audio device for notifications in Digital Messaging conversations

MC1315214 | May 18 – We are announcing the ability for Customer service representatives (CSRs) to configure a secondary audio device for their sound setting personalization on the Digital Messaging channels in Dynamics 365 Contact Center. This feature will be available in public preview on May 22, 2026. How does this affect me? Customer service representatives (CSRs) can set up a secondary audio device to help ensure they don’t miss assigned conversations on digital messaging channels….
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(Updated) Planner is now available in Outlook and Microsoft 365 Copilot

MC1309747 | May 18 – Planner is now integrated into Outlook (web and new Windows) and Microsoft 365 Copilot, allowing users to manage tasks alongside email and calendar. Rollout is paused, with no admin action needed. Users can access Planner by default without a Copilot license, and existing permissions remain unchanged.
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(Updated) Outlook: Improved handling of disallowed and failed email reactions

MC1261593 | May 18 – Outlook Classic for Windows now disables the Reactions button and reverts failed reaction attempts when the x-ms-reactions: disallow header is used, ensuring consistent behavior across clients. This update, rolled out in version 2904 (build 19929), requires no action but may prompt helpdesk updates.
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Power Platform admin center – Information regarding the retirement of Power Platform Security Score (Preview)

MC1310690 | May 18 – On May 29, 2026, we are retiring the Security Score (Preview) feature from the Security > Overview page in the Power Platform admin center. The security score and its qualitative rating (Low, Medium, High) will no longer be available. How does this affect me? The Security Score (preview) provided a qualitative measurement (Low, Medium, High) of your organization’s security posture across Power Platform and Dynamics 365 environments. It calculated a…
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Microsoft Dataverse – Solution-aware tables and metadata in Dataverse now classified as file storage

MC1314979 | May 18 – In April 2026, we updated how storage is reported in Dataverse, moving solution-aware components and metadata from the database tier to the file tier. This change has no impact on apps, flows, solutions, or integrations.How does this affect me?Within the Power Platform admin center, under Resources and then Capacity:Database storage is lower by the amount previously attributed to this content.File storage is proportionally higher.Total tenant…
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(Updated) Microsoft 365 Copilot: Structured document generation with Forms

MC1218000 | May 18 – Microsoft 365 Copilot now enables structured document generation in SharePoint via Forms, requiring a Copilot license. Public preview is on by default from June 15, 2026, with general availability in July 2026. It ensures consistent, compliant documents using approved templates without admin action needed.
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(Updated) Microsoft Purview | Insider Risk Management: Policy tuning analysis for priority content only policies

MC1059679 | May 18 – Microsoft Purview Insider Risk Management will roll out real-time policy tuning analysis for priority content policies worldwide from late June to August 2025, postponed for GCC, GCC High, and DoD. Admins can enable Analytics to predict user matches, adjust thresholds, and optimize insider risk alerts efficiently.
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(Updated) Microsoft Teams: AI-powered notes for in-person meetings with Facilitator in Teams Rooms on Android

MC1307888 | May 18 – Microsoft Teams is expanding AI-powered meeting notes with the Facilitator agent to Teams Rooms on Android, enabling real-time note-taking during in-person meetings. Notes are securely stored in tenant-owned SharePoint and accessible via meeting recap. Rollout begins early July 2026, requiring Teams Rooms Pro licenses and specific tenant settings.
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(Updated) Microsoft Edge for Business: New PDF viewer powered by Adobe engine now available for testing in Edge Beta

MC1072406 | May 18 – The Adobe-powered PDF viewer is now available in Microsoft Edge Beta (v136) for organizational testing, with default rollout planned for October 2025 and legacy viewer retirement in September 2026. It offers improved performance, accessibility, compatibility, and enhanced features for protected PDFs and digital signatures. Organizations should test workflows and provide feedback.
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(Updated) New PDF Viewer Enabled by Default in Microsoft Edge Starting October 2025

MC1154300 | May 18 – Starting October 2025, Microsoft Edge on Windows will default to an Adobe-powered PDF viewer for enterprise users, enhancing performance and features. Rollout completes by March 2026. Admins can manage or opt out via policies until September 2026, after which the new viewer becomes mandatory.
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(Updated) Viva Engage Communities and Storylines in Teams – Individual enablement controls

MC1302904 | May 18 – By May 26, 2026, Microsoft Teams will offer separate admin controls to independently enable or disable Viva Engage Communities and Storylines within Teams via messaging policies. Both are enabled by default, remain available in Viva Engage if disabled in Teams, and admins should review settings before rollout.
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(Updated) Microsoft Teams: Ad-hoc room reservation from Teams Rooms on Windows console

MC1245225 | May 18 – Microsoft Teams Rooms on Windows will support ad-hoc room reservations directly from the console starting early July 2026, requiring a Teams Rooms Pro license. Users can reserve rooms on the spot with selectable end times. The feature is enabled by default, with admin controls available for management and no compliance issues identified.
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(Updated) Microsoft Teams: AI Interpreter (simultaneous) quality improvements and new Traditional Chinese support

MC1267977 | May 18 – Microsoft Teams AI Interpreter will improve real-time interpretation accuracy, recognize names and industry terms better, use your organization’s Custom Dictionary, and add Traditional Chinese support. The update requires Microsoft 365 Copilot licenses, rolls out from late April to early June 2026, and needs no admin action before deployment.
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(Updated) Microsoft Teams town halls now support backup Real-Time Messaging Protocol (RTMP) streams

MC1261595 | May 18 – Microsoft Teams town halls will support a backup RTMP stream to enhance reliability for large live events. If the primary stream fails, Teams will automatically switch to the backup without affecting attendees. This feature rolls out worldwide from late April to mid-June 2026 and requires no admin action.
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(Updated) Consult and merge into a meeting or group call via Dual-Tone Multi-Frequency (DTMF)

MC1183611 | May 18 – Microsoft Teams will enable consulting and merging PSTN callers into meetings via DTMF navigation through IVR or auto-attendants. Rolling out April to June 2026, this feature requires no admin action, is enabled by default, and allows seamless integration of external callers into active meetings.
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(Updated) Microsoft Teams: Automatic removal of EXIF data from shared images

MC1217997 | May 18 – Microsoft Teams will automatically remove EXIF metadata from images shared in chats and channels starting early 2026 to enhance privacy. The image content remains unchanged, no admin action is needed, and users can share images with EXIF data via OneDrive links. Rollout completes by mid-June 2026.
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(Updated) Microsoft Teams: Restart Event feature for Town Hall with unrecoverable failures

MC1194079 | May 18 – Microsoft Teams will roll out a Restart Event feature for live events starting early January 2026, enabling organizers to restart events after unrecoverable failures. The feature is enabled by default, causes brief attendee interruptions, requires no admin changes, and aims to improve event resiliency and continuity.
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(Updated) Microsoft Purview | Data lifecycle Management cmdlet connectivity change

MC1213770 | May 18 – Starting April 30, 2026, admins using Data Lifecycle Management cmdlets must use Exchange Online PowerShell v3.9.0+ and include the -EnableSearchOnlySession parameter with Connect-IPPSession for improved security. This change affects specific cmdlets but not portal users. Update scripts accordingly.
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