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 462th email that Microsoft has sent to Tenant Admin’s Newsletter with Office 365 changes.


Resume “Summary” from Microsoft 365 Copilot:

Microsoft 365 Message center announced major updates, including a new Microsoft Purview Data Security Posture Management experience (public preview Dec 2025, GA May 2026), and retirement of older Microsoft Defender for Endpoint mobile apps (retiring May 10, 2026) and Outlook Lite app (retiring May 25, 2026).

Key Teams updates include AI meeting recaps without transcripts (mid-2026), increased private channel limits and group compliance migration (migration starts Oct 2025, completes late April 2026), flexible meeting layouts (Jan–Apr 2026), and new features like Drafts quick view, smarter search autosuggest, and annotation on shared windows.

Microsoft 365 Copilot enhancements cover memory and personalization (preview Nov 2025, GA Jan 2026), structured document generation in SharePoint (preview Feb–Mar 2026), RSVP in Copilot chat (Jan–Apr 2026), and Copilot Tuning for large organizations (preview April 2026).

New features for admins include Agent 365 for unified agent management (from May 1, 2026), extended sensitivity label scoping, DLP diagnostics for all roles (late April 2026), and a Security Store for DLP integrations (March–April 2026).

Outlook and OneDrive updates include a new People Hub (late April–mid-May 2026), workweek view for iOS/iPad (mid-May 2026), and improved OneDrive sync for macOS (April–May 2026).

SharePoint now allows site admins to manage Restricted Access Control (by April 2026), and Dataverse will support AI prompt columns (GA May 4, 2026).

Windows updates: Top domain mail flow report retires July 6, 2026


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

April 6, 2026 – April 12, 2026

 

 

Major updates

 

(Updated) New Microsoft Purview data security posture management experience

MC1191257 | April 10 – Microsoft is updating Purview Data Security Posture Management with unified visibility across traditional and AI environments, AI observability, enhanced reporting, and third-party integrations. Public preview starts December 2025; general availability begins May 2026. Existing policies remain unchanged; no admin action required.
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Upcoming retirement of older Microsoft Defender for Endpoint mobile app versions (iOS and Android)

MC1276511 | April 10 – Microsoft will retire Microsoft Defender for Endpoint mobile app versions released before February 2026 on iOS and Android starting May 10, 2026. Older versions will lose cloud connectivity and updates. Administrators must ensure devices update to supported versions to maintain protection and avoid service disruption.
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Complete retirement of the Outlook Lite app

MC1276508 | April 10 – The Outlook Lite app for Android will be fully retired on May 25, 2026, disabling mailbox access but allowing app launch. Users should switch to Microsoft Outlook Mobile, which supports all mailbox features and compliance capabilities. No admin action is required, but users should be notified to transition.
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Windows Deployment Services (WDS): Hands-free deployment hardening (Phase 2)

MC1276259 | April 10 – As announced in January 2026, the unattend.xml file used in hands‑free deployment poses a vulnerability when transmitted over an unauthenticated RPC channel. Beginning with the April 2026 security update, the View more

(Updated) Introducing Workforce Insights agent in Frontier for Microsoft 365 Copilot

MC1187675 | April 9 – The Workforce Insights agent, launching December 8, 2025, in Frontier for Microsoft 365 Copilot, helps leaders analyze staffing, skills, and organizational structure using organizational and people skills data. Available to organizations with 50+ Copilot licenses, it supports deployment control, data setup, and workforce planning insights.
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(Updated) Retirement of the Semi-Annual Enterprise Channel option in the Office Customization Tool

MC1249427 | April 9 – The Semi-Annual Enterprise Channel option will be retired from the Office Customization Tool starting April 15, 2026, completing by April 20, 2026. Existing configurations remain unchanged, but new deployments will only offer Current Channel and Monthly Enterprise Channel options. No admin action is required.
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(Updated) Simplifying agent management with Agent 365

MC1275311 | April 9 – Starting May 1, 2026, Microsoft is retiring the Agent registry and Agent collections blades in the Microsoft Entra admin center. Agent 365 will be the unified platform for agent management, with a new API replacing the existing one. No immediate admin action is required.
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Microsoft Teams: AI meeting recap without transcript to meet compliance policies

MC1275312 | April 9 – Microsoft Teams will offer AI meeting recaps without saving transcripts or recordings, supporting compliance policies. Available mid-2026 for M365 Copilot Premium users, organizers can enable/disable this feature pre- or during meetings. It’s controlled by tenant AI settings and generates summaries using live meeting context only.
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Upcoming change: Microsoft 365 Apps SAEC and MEC will unify

MC1274325 | April 8 – Starting July 14, 2026, Microsoft will unify the Semi-Annual Enterprise Channel (SAEC) and Monthly Enterprise Channel (MEC) for Microsoft 365 Apps into a single enterprise update channel, simplifying update management without changing existing policies or user workflows. No action is required.
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(Updated) Microsoft Teams: Private channels increased limits and transition to group compliance

MC1134737 | April 8 – Microsoft Teams is migrating private channels to use group mailboxes by late April 2026, increasing limits to 1000 channels per team and 5000 members per channel, enabling meetings, and consolidating compliance policies at the team group level. Admins must update policies before migration starting October 2025.
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(Updated) Microsoft Teams: Rule-based enablement of Microsoft 365 third-party apps in the Teams admin center

MC1085133 | April 7 – Starting mid-April 2026, admins can manage Microsoft 365 certified third-party apps in Teams via org-wide settings with rule-based controls for app availability. This feature enhances security by allowing customization based on permissions and publishers. The rollout is automatic, with the new control disabled by default.
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(Updated) Outlook: New and improved People Hub on Web

MC1199768 | April 7 – The new People Hub in Outlook Web offers a modern multi-column layout, faster search, automatic duplicate linking, and enriched contact details. Rolling out globally from late April to mid-May 2026, all users will be migrated automatically with no admin action needed. Training resources will be provided.
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(Updated) Express voice enrollment in Microsoft Teams

MC1197146 | April 6 – Express voice enrollment in Microsoft Teams enables quick voice profile registration for enhanced features like speaker recognition and improved transcripts. Rolling out May 2026 for commercial tenants (excluding Education), it’s on by default but can be disabled by admins via PowerShell. Review and communicate policy changes accordingly.
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Top domain mail flow report in Exchange Online is retiring

MC1272554 | April 6 – The Top domain mail flow report in Exchange Online’s Exchange admin center will retire on July 6, 2026. After this, it will be inaccessible, requiring admins to adopt alternative reporting methods. No other mail flow reports or mail delivery behaviors are affected. Prepare by updating documentation and validating new workflows.
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Upcoming change: Retirement of noise suppression capability for OneDrive and SharePoint video

MC1272549 | April 6 – Microsoft will retire the noise suppression option for video playback in OneDrive and SharePoint between July and August 2026. This change affects only the playback experience; video files remain unchanged. No admin action is required, though updating documentation and notifying helpdesk is recommended.
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Additional updates

 

Engage events: Broadcast, meetings, and custom events with moderated feed and anonymous posting on web and mobile

MC1276513 | April 10 – Engage Events will add Broadcast for large-scale events, Meetings-based Events, moderated feeds, and anonymous posting on web and mobile. A new Events Landing Page will unify event engagement before, during, and after events. Rollout begins late April 2026, enabled by default for all Engage customers.
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(Updated) Microsoft Purview | eDiscovery – Add sample to review set

MC1227079 | April 10 – Microsoft Purview eDiscovery (Premium) will add a feature allowing users to add a statistical sample of search results to review sets, enabling earlier validation and reduced review volume. Rollout begins mid-March 2026 worldwide, with no impact on permissions or other services. No preparation needed.
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(Updated) Microsoft 365 Copilot: Updates to memory and personalization

MC1158329 | April 10 – Microsoft 365 Copilot updates Memory to personalize responses using chat history, with improved user controls for managing Saved Memory. Public preview starts mid-November 2025; general availability begins January 2026. Users can enable or disable personalization, with no changes to admin controls or policies.
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Dynamics 365 Contact Center – Use Admin Agent to simplify setup tasks in contact center

MC1276450 | April 10 – We are announcing Admin Agent in Dynamics 365 Contact Center. This feature will reach public preview on April 24, 2026.How does this affect me?This feature allows administrators to set up channels, routing, queues, AI agents, voice configurations, Teams Phone extensibility, and knowledge sources through a single guided assistant. Key capabilities of the Admin Agent in Copilot Service admin center include:Generate configurationsValidate setupsRun…
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Dynamics 365 Customer Service – Protect sensitive information in emails with data sensitivity labels

MC1276446 | April 10 – We are announcing the ability to protect sensitive information in emails with data sensitivity labels in Dynamics 365 Customer Service. This feature will reach general availability on May 1, 2026.How does this affect me?This feature enables you to add data sensitivity labels to emails to help classify and protect sensitive information.Data sensitivity labels provide the following benefits:Easy classification and protection of sensitive…
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(Updated) Microsoft Purview: Information Protection – Extended scoping capabilities for sensitivity label policies

MC1262573 | April 10 – Microsoft Purview Information Protection now allows admins to exclude modern Microsoft 365 groups and include non-mail-enabled and dynamic security groups in sensitivity label policies. Rollout begins late April 2026 (public preview) and mid-June 2026 (general availability). No user impact unless policies are updated.
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(Updated) Microsoft 365 Copilot: Podcast voice interactions make audio experiences conversational

MC1183009 | April 10 – Microsoft 365 Copilot will enable real-time voice interactions in podcasts starting April 2, 2026, initially for en-US. This feature allows users to ask questions during audio overviews, enhancing engagement without admin changes. It will be on by default for eligible users with Copilot licenses.
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Updates available for Microsoft 365 Apps for Current Channel

MC1275659 | April 10 – We’ve released updates to the following update channel for Microsoft 365 Apps: Current Channel
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Microsoft 365 Copilot: Multimodal capture in Copilot Notebooks in the OneNote mobile app (iOS)

MC1275566 | April 9 – Microsoft 365 Copilot introduces multimodal capture in OneNote mobile (iOS) Copilot Notebooks, combining audio transcription, image capture, and typed notes into one session. Available now in preview, general rollout occurs April–May 2026. It requires appropriate licenses and user consent for transcription.
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Microsoft 365 Copilot: Updated Copilot Notebooks overview page experience

MC1275564 | April 9 – Microsoft 365 Copilot Notebooks will have a redesigned Overview page with AI-generated summaries, key insights, suggested actions, and improved layout. Rolling out from April to May 2026, it will be enabled by default without admin changes, respecting existing permissions. No user action is required.
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Microsoft Purview: DLP diagnostics enabled for all roles with DLP policy access

MC1275563 | April 9 – Microsoft Purview is updating permissions so all roles with DLP policy view access can also run diagnostics, enhancing troubleshooting and visibility without changing enforcement. This rollout begins late April 2026 and affects various admin and compliance roles. No action is required from organizations.
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(Updated) Microsoft Viva Glint: AI-generated survey insights with Copilot highlights

MC1247887 | April 9 – Microsoft Viva Glint will add AI-generated Copilot highlights to survey reports starting April 20, 2026, providing structured summaries of key insights automatically for licensed users. No extra configuration or Microsoft 365 Copilot license is needed, and existing permissions and privacy settings remain unchanged.
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Hardening administrative actions: Windows imaging, cloning, and auth workflows

MC1275343 | April 9 – Administrative actions are undergoing hardening changes that might require operational change to support your organization’s security posture.With theAugust 2025 Windowsnon-security update,deviceswerehardenedagainstunauthorizedattempts to bypass loopback detection.However, ifyou’vecloned machines withoutSysprep, you might see Kerberos and NTLM authentication failures. Thisis by design.The recommended…
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Windows Office Hours: April 16, 2026

MC1275342 | April 9 – If you are an IT admin with questions about managing and updating Windows, we want to help. Every third Thursday of the month, we host a live chat-based event on the Tech Community called Windows Office Hours. Members of the Windows, MicrosoftIntune, Windows Autopilot, Windows Autopatch, and Windows 365 engineering teams will be standing by to answer your questions.Want to attend the April 16 session of Office Hours?View more

(Updated) Microsoft Purview: Data Loss Prevention – Security Store now available to discover DLP integrations

MC1247882 | April 9 – Microsoft Purview DLP now integrates the Microsoft Security Store, enabling admins to discover, purchase, and manage partner security integrations directly within Purview. Rollout begins late March 2026, completing by mid-April. The feature is enabled by default with no impact on existing policies or users unless integrations are activated.
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(Updated) Microsoft Entra: Passkeys in Microsoft registration campaigns

MC1253746 | April 9 – Microsoft has decided to delay the rollout of Passkeys (FIDO2) support in Microsoft Registration Campaigns initially planned for April 2026. When implemented, it will enable admins to nudge MFA-capable users to register Passkeys, changing default settings and targeting. Organizations should review configurations and prepare accordingly.
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(Updated) Microsoft 365 Copilot: Copilot Chat for Teams Chats, Channels, Calling, and Meetings

MC1156360 | April 9 – Microsoft 365 Copilot Chat is now available side-by-side in Teams Chats, Channels, Calling, and Meetings for licensed users on desktop and web. A new in-meeting control lets users stop audio processing to prevent transcription and recording. Admins must enable the Copilot app for access.
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New PDF Viewer Enabled by Default in Microsoft Edge Starting October 2025

MC1154300 | April 8 – Starting October 2025, Microsoft Edge on Windows will default to an Adobe-powered PDF viewer for enterprise users, improving performance, accessibility, and features. Rollout completes by March 2026. Admins can manage this via policies, with opt-out available until June 2026. No action needed if ready.
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Microsoft Copilot Studio – Information regarding the end of support for classic agent creation in Teams

MC1274562 | April 8 – Starting April 1, 2026, classic agent creation in the Microsoft Copilot Studio app for Teams has reached end of support. How does this affect me? Admins and users will be redirected to Microsoft Copilot Studio for classic agent creation in Teams. What action do I need to take? Please notify your users following April 1, 2026, the classic agent creation in Teams will redirect you to the…
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Microsoft Purview | Data Security Posture Management for AI Fabric integration in data risk assessment

MC1274552 | April 8 – Microsoft Purview DSPM (preview) will add a Fabric tab for Data Risk Assessment to detect and manage oversharing of sensitive data in Microsoft Fabric workspaces. Rolling out mid-April to early May 2026, admins must enable scanning and can then view and secure Fabric artifacts like dashboards and reports.
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Microsoft Teams: Book future meetings from Microsoft Teams panels (Android)

MC1274551 | April 8 – Microsoft Teams will allow booking future meetings directly from Android-based Teams panel devices starting early May 2026. This feature, off by default, requires admin activation and supports adding guests. It applies to Teams Rooms Pro and Shared Device licensed rooms, streamlining scheduling without switching devices.
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Microsoft Teams: Quick access to read items while using unread only mode

MC1274550 | April 8 – Microsoft Teams will introduce an eye icon in unread only mode to quickly access read chats and channels without changing filters. Rolling out worldwide from early to mid-May 2026, this feature is enabled by default, requires no admin action, and improves navigation while keeping the unread list visible.
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Extended Security Updates (ESU) available for Windows 10 Enterprise LTSB 2016

MC1274396 | April 8 – If your organization relies on Windows 10 Enterprise LTSB2016, you knowit’snearing end of support on October 13, 2026. While the long-term solution is upgrading to a newer LTSC release, another temporary solution is availableas of April 1, 2026.Extended Security Updates (ESU) are now available for purchase through Volume Licensing or a Microsoft Cloud Solution Provider (CSP).When will this happen:October 13, 2026:…
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ESR management is moving to Windows Backup for Organizations

MC1274349 | April 8 – StartingMay2026,Enterprise State Roaming (ESR) management will transition to Windows Backup for Organizations. Windows Backup for Organizations is the enterprise‑grade solution for backing up and restoring Windows user settings and Microsoft Store applist.It’sdesigned to support device refresh, replacement, and upgrade…
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(Updated) Microsoft 365 Copilot: Content Sources in Copilot Chat

MC1127230 | April 8 – Microsoft 365 Copilot will let licensed users select specific content sources for Copilot Chat responses, improving relevance and control. Rolling out worldwide from May 2026, this feature is enabled by default, requires no admin action, and does not affect existing settings or compliance.
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SharePoint Advanced Management: Delegate management of Restricted Access Control (RAC) to site admins

MC1274323 | April 8 – SharePoint now allows delegation of Restricted Access Control (RAC) management to site admins, requiring justification for changes. This feature, needing a premium license, is off by default and can be enabled by SharePoint admins to reduce overhead while maintaining security and auditability. Rollout completes by April 2026.
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(Updated) Microsoft 365 Copilot: Generate text for a PowerPoint slide using slide context

MC1178510 | April 8 – Microsoft 365 Copilot in PowerPoint will soon generate titles, summaries, and captions using slide context via natural language prompts. Rolling out worldwide from mid-May to June 2026, it requires a Copilot license, appears by default, and affects PowerPoint on Windows, Mac, and web platforms.
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(Updated) Microsoft 365 Copilot: RSVP to meetings directly in Copilot chat

MC1192258 | April 8 – Microsoft 365 Copilot chat will allow users to RSVP to meetings directly with options like Accept, Decline, Tentative, Follow, or Remove canceled meetings. This feature, enabled by default without admin action, will roll out globally from mid-January to end of April 2026.
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(Updated) Microsoft 365 Copilot: Updated handling of entity inserts in the Copilot Chat input box

MC1230892 | April 8 – Microsoft 365 Copilot and Copilot Chat will update entity insertion so entity names no longer appear as text in the input box, creating cleaner prompts. This change rolls out worldwide from mid-February to end of April 2026, is enabled by default, and requires no admin action.
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Microsoft Whiteboard content is now viewable in Microsoft Purview eDiscovery

MC1273444 | April 7 – Microsoft Whiteboard content in Microsoft Purview eDiscovery can now be viewed directly as readable HTML without downloading files. This rollout, completing by April 2026, improves compliance review workflows and applies automatically with existing permissions and controls intact. No user action is required.
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Microsoft Teams: Smarter auto suggestions to help you search faster

MC1273443 | April 7 – Microsoft Teams will introduce smarter, personalized Autosuggest in search by mid-April 2026, showing clearer suggestions for people, channels, and chats to improve search speed and relevance. The feature is enabled by default, requires no admin changes, and enhances user experience without affecting data storage or permissions.
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(Updated) Anthropic Claude Sonnet is now available in Microsoft 365 Copilot

MC1247880 | April 7 – Anthropic Claude Sonnet is now available in Microsoft 365 Copilot Chat in Frontier and rolling out broadly by early April 2026. It offers users with a Copilot license a new AI model choice, except in EU/EFTA, UK, government, and sovereign clouds. Admins can opt in where off by default.
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Power Apps – Microsoft 365 Copilot will be available in model-driven apps

MC1273407 | April 7 – We are announcing the ability to use Microsoft 365 Copilot in model-drive apps in Power Apps. This feature will reach general availability on April 15, 2026.How does this affect me?Users will be able to use copilot as an assistant to help understand and interact with your model-driven app data using natural language. This will enable users to leverage the full capabilities of Microsoft 365 Copilot directly from model-driven apps.What action do I need to…
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(Updated) Improved OneDrive sync experience for macOS users

MC1255404 | April 7 – The OneDrive Activity Center on macOS is redesigned for a cleaner, intuitive sync experience, rolling out globally from April to May 2026. It aligns with macOS conventions, improves accessibility, and requires no admin action. Users get clearer sync status and easier issue resolution.
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(Updated) Viva Engage: Feature conversations to all network members

MC1272652 | April 7 – Featured conversations in public Viva Engage communities can now be promoted to all network members or just community members, while private community features remain member-only. This rollout begins late April 2026, requires no admin action, and maintains existing permissions and moderation rules.
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(Updated) New features coming to Copilot Notebooks for Frontier users

MC1187387 | April 7 – New features for Copilot Notebooks in M365 Copilot apps will roll out from November 2025 to March 2026, enhancing navigation, personalization, and AI capabilities. Updates include a streamlined interface, personalized suggestions, an overview page, and expanded reference types. No admin action is needed; features enable by default.
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(Updated) Microsoft Edge: Copilot new tab page

MC1250274 | April 7 – Microsoft Edge for Business is introducing a Copilot-inspired new tab page combining search, chat, and work content in one box. Rollout starts mid-November 2025 (public preview) and general availability in May 2026. Admins can enable it via Edge Management; users must opt in. No default changes occur automatically.
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(Updated) Microsoft Teams: Channel Agent feature updates

MC1243546 | April 7 – Microsoft Teams is updating Channel Agent features by mid-April 2026, enhancing welcome messages, user control over agent creation, scheduling, member additions, and channel messaging. A Microsoft 365 Copilot license is required. No action needed unless in Targeted Release; admins should enable and inform helpdesk staff.
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(Updated) Microsoft Teams on Windows: Annotate content while sharing a single window

MC1234561 | April 7 – Microsoft Teams on Windows will enable annotation on a single shared application window, enhancing focused collaboration and privacy. Rollout starts early March 2026, completing by mid-April. Presenters and participants can annotate, with the feature enabled by default and no admin action required.
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(Updated) Microsoft Teams: New Drafts quick view

MC1223827 | April 7 – Microsoft Teams will introduce a Drafts quick view feature by mid-April 2026, allowing desktop users to easily find, edit, and send unsent draft messages. The feature is on by default, requires no admin action, and aims to improve productivity. No compliance issues identified.
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(Updated) Microsoft Teams: Restart Event feature for Town Hall with unrecoverable failures

MC1194079 | April 7 – Microsoft Teams is introducing a Restart Event feature for live events to recover from unrecoverable failures, improving resiliency for Town Halls. It will roll out globally from January to mid-April 2026, enabled by default with no admin setup needed. Attendees may face brief interruptions during restarts.
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(Updated) Flexible layout for Teams meetings with resizable divider

MC1190199 | April 7 – Teams meetings will have a new flexible layout with a resizable divider to adjust space between shared content and participant videos. Users can swap positions and customize views, including spotlighted and pinned videos. Rolling out January to April 2026, enabled by default with no admin setup needed.
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(Updated) Co-organizer experience updates in Teams Webinars and Townhalls

MC688109 | April 7 – Co-organizers in Teams Webinars and Townhalls can now fully edit event details, publish, and cancel events like organizers. Rollout starts mid-January 2025 for targeted release and early March 2026 for general availability. No preparation is needed from organizations.
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(Updated) Microsoft Teams: AI Interpreter (simultaneous) quality improvements and new Traditional Chinese support

MC1267977 | April 7 – Microsoft Teams AI Interpreter will improve real-time interpretation accuracy, better recognize names and industry terms, use your organization’s Custom Dictionary, and add Traditional Chinese support. The update requires Microsoft 365 Copilot licenses, rolls out in late April 2026, and needs no admin action before deployment.
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(Updated) Microsoft Teams: Flexible layout for meetings with resizable divider

MC1239934 | April 7 – Microsoft Teams will introduce a flexible meeting layout with a resizable divider to adjust shared content and video gallery space. Rolling out mid-April 2026, it supports spotlighted speakers, pinned videos, and Speaker View. Enabled by default, no admin action is needed; update training and support materials accordingly.
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(Updated) Microsoft 365 Copilot: Structured document generation with Forms

MC1218000 | April 7 – Microsoft 365 Copilot will enable structured document generation in SharePoint via form-driven experiences, requiring a Copilot license. Public preview starts mid-February 2026, completing by March. It ensures consistent, compliant documents with existing governance, requires no admin action, and supports template management and workflow streamlining.
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Microsoft Dataverse – Enable makers to create Dataverse AI prompt columns

MC1273097 | April 7 – We are announcing the ability for makers to create Dataverse AI prompt columns in Microsoft Dataverse. This feature will reach general availability on May 4, 2026.How does this affect me?With this feature, makers can use generative AI prompts to improve data quality so users can efficiently process customer feedback and inquiries. You can prioritize responses based on urgency (sentiment), categorize responses (classify), extract pertinent info such as email addresses and…
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(Updated) Microsoft Purview compliance portal: Data Security Investigations introduces new soft purge mitigation action

MC1249429 | April 7 – Microsoft Purview compliance portal’s Data Security Investigations now includes a soft purge mitigation action, enabling admins to delete sensitive items recoverably during investigations. This feature, rolled out in early April 2026, requires no configuration, preserves existing policies, and does not affect user workflows.
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(Updated) Microsoft 365 Copilot: Customize Copilot for your organization with Copilot Tuning – public preview

MC1222551 | April 6 – Microsoft 365 Copilot Tuning (public preview from April 2026) enables organizations with 5,000+ Copilot licenses to customize AI agents using proprietary data via new templates in Agent Builder. It stores SharePoint snapshots in tenant-isolated environments, with admin controls for access, data privacy, and compliance considerations.
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Workweek view for Outlook on iOS and iPad

MC1272552 | April 6 – Outlook for iOS and iPad will add a Workweek calendar view by mid-May 2026, allowing users to focus on their workdays. iPad users can select it anytime; iPhone users in landscape mode. Users can customize days shown. No admin action is needed to enable this feature.
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Copilot Cowork now available in Frontier

MC1265767 | April 6 – Copilot Cowork is now available in Frontier for Microsoft 365 Copilot Premium users, enabling multi-step task orchestration across apps with user approval and progress tracking. It requires Frontier enrollment, enabled agents, and Anthropic as a subprocessor. EU tenants must enable it explicitly due to data boundary rules.
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(Updated) Microsoft Outlook Mobile adds support for DLP policy tips and enforcement

MC1129716 | April 6 – Microsoft Outlook Mobile will support DLP policy tips and enforcement with new features like custom dialogs, attachment scanning, and Intune controls (default OFF). External recipient rule validation is temporarily removed. Organizations should test rules and train users before enabling DLP on mobile devices.
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(Updated) DLP policies will be able to block Copilot processing of sensitivity‑labeled files in all storage locations

MC1234661 | April 6 – Microsoft Purview DLP policies will block Copilot from processing sensitivity-labeled Word, Excel, and PowerPoint files across all storage locations, including local devices. This rollout begins mid-April 2026, requires no policy changes, and ensures consistent DLP enforcement without altering Copilot capabilities.
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(Updated) New policy to add watermarks to content generated or altered by using AI in Microsoft 365

MC1221451 | April 6 – Microsoft 365 will offer a policy to add visual or audio watermarks to AI-generated or altered video and audio content, available mid-April 2026 via Cloud Policy. This enhances transparency and requires organizations to enable the policy; image watermarking will be user-controlled starting February 2026.
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(Updated) Microsoft 365 Copilot: User-day export for Copilot dashboard metrics in public preview

MC1222978 | April 6 – Microsoft 365 Copilot dashboard will add a public preview export option in mid-May 2026, enabling company-level users to download de-identified, user-day aggregated usage data for the past 28 days. This supports detailed short-term insights and uses existing Viva Feature Access Management controls.
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Quickly access relevant information and functionality from the new home page—The home page has been redesigned with you and your most common tasks in mind—such as adding a user or resetting a password. The new admin center makes these items accessible directly from the home page. The home page also proactively surfaces information important to you, such as notifications from the Message Center.

More news and more information here – https://techcommunity.microsoft.com/t5/microsoft-365-blog/bg-p/microsoft_365blog

If you what to know more about Office 365 here is my book – Office 365 Essentials – https://www.nuno-silva.net/blog/post/11956/office-365-essentials-book-published

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