Message center announcements
September 28, 2026 – October 4, 2026
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An updated version of the September 2026 Scan Cab is available
MC1486397 | October 3 – IMPORTANT: This notice is only relevant for environments where:Exchange Server Subscription Edition (SE) is usedScan Cab is used to check for update complianceThe September 2026 Scan Cab was deployed before 6:30 PM PDT on October 2, 2026.What and why:An updated version of the September 2026 Scan Cab was made available at 6:30 PM PDT on October 2, 2026. This Scan Cab includes new metadata corresponding…
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(Updated) Microsoft Viva Copilot Analytics launches new agent dashboard
MC1166852 | October 2 – Microsoft Viva Copilot Analytics introduces a new Agent Dashboard for tracking agent adoption trends and Copilot credit usage, rolling out publicly in February 2026. It offers detailed metrics, retention trends, and agent insights, accessible via Viva Insights, with controls for managing access and no identified compliance issues.
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Microsoft Defender for Office 365: Changes to Unified RBAC permission mapping for Microsoft Entra Security Operator role
MC1486293 | October 2 – Microsoft is updating Microsoft Defender for Office 365’s Unified RBAC mapping for the Microsoft Entra Security Operator role, removing default access to email threat policies and Tenant Allow/Block List. This change starts November 2026 and requires manual permission assignment for continued access when Unified RBAC is enabled.
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(Updated) Microsoft Defender for Office 365: Enhancing how we handle promotional mail
MC1279093 | October 2 – Microsoft Defender for Office 365 will tag promotional emails as “promotions” and can auto-move them to a Promotions folder, learning from user actions. Public preview starts mid-April 2026; general rollout completes by late 2026. Admins control settings; users can customize via message moves.
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(Updated) Retirement of SharePoint One-Time Passcode (SPO OTP) and transition to Microsoft Entra B2B
MC1243549 | October 1 – SharePoint One-Time Passcode (SPO OTP) authentication will retire starting mid-October 2026, transitioning external sharing and authentication to Microsoft Entra B2B. This change affects all Microsoft 365 tenants, requiring guest accounts for external users and enabling consistent governance and Conditional Access across SharePoint and OneDrive.
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(Updated) Microsoft Teams: Improved file sharing experience in external chats
MC1479514 | October 1 – Microsoft Teams will enable Attach file and drag-and-drop for external chats by default starting late October 2026, improving file sharing. Files are stored in the sender’s OneDrive with automatic permission assignment, subject to existing OneDrive/SharePoint policies. Admins can disable this via Teams PowerShell settings.
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Microsoft Purview | Data Lifecycle Management – Hard delete OneDrive and SharePoint files with priority cleanup workflow
MC1261587 | October 1 – Microsoft Purview introduces a priority cleanup workflow enabling admins to hard delete specific OneDrive and SharePoint content, even under retention or holds, with required eDiscovery approval. Rolling out from mid-2026, it reduces data exposure while maintaining compliance and requires explicit admin configuration.
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(Updated) Unified management of app and agent availability and installation in Teams, Outlook, and the Microsoft 365 app
MC796790 | October 1 – Microsoft is unifying app and agent availability and installation management across Teams, Outlook, and Microsoft 365 admin centers. Availability unification began in September 2025 in phases, with automatic unification planned. Installation unification starts late September 2026, synchronizing settings without admin action for eligible tenants.
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(Updated) Transitioning Teams Android Device Management from Teams admin Center to the Teams Rooms Pro Management portal
MC1227622 | October 1 – Teams Android device management is transitioning from the Teams admin center to the Teams Rooms Pro Management portal by July 2026, consolidating all Teams device management into one portal. TAC device management will be deprecated by November 2026. Admins should prepare by monitoring updates and updating documentation accordingly.
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Microsoft Copilot: Introducing the Microsoft plugin registry for Microsoft Copilot experiences
MC1484008 | September 30 – Microsoft is introducing a Microsoft plugin registry for Copilot experiences and Microsoft 365 apps, centralizing discovery, publishing, and governance of plugins. The Agents-related buttons will be replaced by a Plugins button by late November 2026, with no action required from admins. Updates to documentation and user preparation are recommended.
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Action Required: Upgrade ExchangeOnlineManagement PowerShell Module to Version 3.10.1 or Later
MC1483974 | September 30 – Upgrade the ExchangeOnlineManagement PowerShell module to version 3.10.1 or later by March 31, 2027, to avoid authentication failures due to new security enhancements. Identify and update older versions, especially if using PowerShell 7 with WAM disabled, and validate related scripts before enforcement.
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(Updated) Microsoft OneNote: Multimodal recording in Copilot Notebooks on Windows
MC1405506 | September 30 – Microsoft is introducing multimodal capture in OneNote Copilot Notebooks on Windows, enabling audio, image, and note capture with AI-generated summaries and action items. Available worldwide by end of October 2026 for licensed Microsoft 365 commercial users, admins can disable it via policy.
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(Updated) Migrate Free/Busy, MailTips, and Calendar Sharing before EWS deprecation
MC1446796 | September 29 – Exchange Web Services (EWS) deprecation starts October 1, 2026, affecting cross-tenant Free/Busy, MailTips, and Calendar Sharing. Migrate to Microsoft 365 Cross-Tenant Access Policy by September–October 2026 to avoid disruptions. Use provided PowerShell commands to check tenant impact and follow migration guidance.
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How to get the Windows 11 2026 Update
MC1482225 | September 29 – What and why:Windows 11, version 26H2, also referred to as the Windows 11 2026 Update, is now generally available. This annual feature update for Windows 11 includes features and enhancements delivered to version 25H2 over the past year in the areas of security, management, accessibility, and user experience.Rollout schedule:Windows 11, version 26H2 is available now for eligible devices running Windows 11,…
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(Updated) Microsoft Viva – Copilot Analytics: Export agent data from the Agent Dashboard
MC1288531 | September 29 – Microsoft Viva will add a feature allowing eligible users with at least 50 Copilot licenses to export de-identified Copilot agent usage data from the Agent Dashboard for analysis. Rollout begins late May 2026 (public preview) and late October 2026 (general availability). Admins can manage or disable this feature.
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Microsoft Purview | Insider Risk Management: Retirement of Data Risk Graph
MC1481317 | September 28 – Microsoft Purview Insider Risk Management is retiring the Data Risk Graph by December 8, 2026. Users must transition to Activity explorer, Content explorer, and User activity experiences for investigations. Existing policies and workflows remain unaffected; no user action is required for the feature removal.
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Microsoft Purview: Retirement of Data Security Posture Management (DSPM) classic and DSPM for AI classic experiences
MC1481315 | September 28 – Microsoft will retire the Microsoft Purview DSPM classic and DSPM for AI classic experiences by December 31, 2026, unifying capabilities into a single current DSPM experience. Organizations using the classic versions must transition workflows to the new experience before retirement.
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Microsoft Purview | DLM: Legacy Teams retention policies that cover Copilot will be treated as Teams-only
MC1481313 | September 28 – Legacy Microsoft Teams retention policies will no longer apply to Microsoft 365 Copilot interactions starting late October 2026. Organizations must configure separate retention policies for Copilot data to maintain compliance, as Teams policies will only govern Teams content going forward. Action is required if Copilot retention is needed.
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(Updated) Microsoft Teams: Updates to Teams Events licensing for business, frontline, and education customers
MC1479512 | September 28 – Microsoft Teams Events licensing is updated to categorize features into foundational (available with eligible Teams licenses) and advanced (requiring Teams Enterprise licenses). Teams Premium no longer includes Events capabilities. Event attendee limits vary by license, with capacity packs needed for over 3,000 attendees. Admins must review organizer licenses accordingly.
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Microsoft OneDrive and SharePoint: Generate smart tables of contents for PDFs on the web with Copilot
MC1486295 | October 2 – Microsoft 365 Copilot users can generate AI-created, hierarchical, clickable tables of contents for PDFs in OneDrive and SharePoint on the web starting December 2026. The feature is user-initiated, respects permissions, supports saving by editors, and may have inaccuracies, especially with scanned PDFs.
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Prompt Column backfill
MC1486292 | October 2 – Bulk generation of AI prompt column values for existing Dataverse records will be generally available November 16, 2026. This asynchronous background job consumes AI credits and requires enabling specific environment settings. Users can review and manage jobs in System Jobs, ensuring historical data gains AI-generated insights.
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Microsoft 365 Copilot: new guided Copilot onboarding experience
MC1486291 | October 2 – Microsoft 365 Copilot introduces an optional, admin-enabled guided onboarding experience for Frontier participants starting late October 2026. It offers personalized role-based training via the Copilot app to boost adoption and confidence, with Starter and Premium journeys, admin controls, and Viva Learning reporting.
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Microsoft Purview |Unified Classification Management Experience
MC1486289 | October 2 – Microsoft Purview is launching a unified Classification Management experience for admins to manage classifiers consistently. Public Preview starts early October 2026; General Availability by late November 2026. It integrates various classifier types and includes admin controls manageable via Entra ID group membership.
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Microsoft Purview | Data Loss Prevention: Administrative Units support for DLP policies for Microsoft Copilot
MC1486284 | October 2 – Microsoft Purview extends Microsoft Entra Administrative Units support to Copilot DLP policies, enabling delegated management within units while maintaining existing RBAC. Rollout starts late October 2026. No action required; organizations using AUs should review structure and assignments. Tenant-wide policies remain unchanged.
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Action required: Update Teams devices to a minimum app version ahead of the retirement of Exchange Web Services (EWS)
MC1486282 | October 2 – Update Microsoft Teams Rooms on Android, phones, and panels to the minimum app version released in February 2026 before October 2026 to avoid losing calendar functionality due to the retirement of Exchange Web Services (EWS). Devices below this version may lose calendar sync and one-touch join features.
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Microsoft Power Platform governance and administration – Secure Dataverse record with column-based filtering
MC1486027 | October 2 – We are announcing the ability for admins to use filtered views to select and manage record-level access securely by defining security based on certain values of a field in Microsoft Power Platform governance and administration. This feature will reach public preview on October 2, 2026.How does this affect me?This enhancement introduces column-based security filtering, enabling records to be secured using attribute values rather than traditional record ownership. This allows…
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(Updated) Teams admin center device state rules and health alerts retire; use Teams Rooms Pro Management portal
MC1469551 | October 2 – Teams admin center’s device state rules and health alerts will retire by late October 2026, moving device health monitoring to the Teams Rooms Pro Management portal. Admins must reconfigure alerts and integrations in the new portal; end-user experience remains unchanged. Existing TAC configurations won’t migrate.
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Microsoft Excel: Excel canvas
MC1485411 | October 2 – Excel canvas, a new Copilot feature in Microsoft Excel, creates dynamic reports with visualizations and insights that update automatically with data changes. Available worldwide by late October 2026, it supports natural language interaction for report customization. No action is required; notify users and update training materials as needed.
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Dynamics 365 Contact Center – Use role-based enforcement for recording and transcription downloads
MC1485169 | October 2 – We are announcing the ability to use role-based enforcement for recording and transcription downloads in Dynamics 365 Contact Center. This feature will reach general availability on October 31, 2026.How does this affect me?This feature helps organizations better protect sensitive customer communications by separating permissions to view recordings and transcripts from permissions to download them. Admins can assign new Dataverse security roles to prevent selected users from…
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Microsoft Outlook: Right-click to customize the classic ribbon
MC1485120 | October 1 – Microsoft Outlook now allows users to customize the classic ribbon by right-clicking on the Home or View tab to select commands and arrange them. This update began rolling out worldwide in late September 2026 and will complete by mid-November 2026, affecting Outlook on various platforms. No action is required.
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Microsoft Exchange Online: Exchange Web Services (EWS) enforcement update for EWSAllowedAppIDs
MC1485116 | October 1 – Starting October 10, 2026, Exchange Online tenants must configure EWSAllowedAppIDs to allow Exchange Web Services (EWS) access; EWSEnabled=True alone will no longer suffice. Microsoft will auto-populate allow lists for some tenants, but organizations must review, maintain, and migrate from EWS to Microsoft Graph.
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(Updated) Viva Engage: Community feeds improvements
MC1187781 | October 1 – Viva Engage communities will default to viewing conversations by recent posts instead of recent activity starting October 2026. Users can still choose their preferred feed and sort order, with settings saved across communities. Unread indicators will appear in both new and all feeds. No action required.
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Upgraded call history in Teams Calls app
MC1485056 | October 1 – Teams Calls app call history is upgraded to consolidate missed calls and voicemails into single entries and expand history from 100 to 3,000 records or 6 months. Rollout occurs worldwide in November 2026. No admin action is needed; users should be informed.
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Microsoft Entra App Gallery: Self-service onboarding for new applications
MC1485054 | October 1 – Microsoft Entra App Gallery introduces self-service onboarding for new applications, allowing ISVs to validate SSO and provisioning integrations, manage submissions, and track status via the Microsoft Entra admin center. Public preview is available now; general availability begins mid-November 2026. No action required.
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(Updated) Microsoft 365: The Next Generation of File & Folder Sharing
MC1454378 | October 1 – Microsoft 365 introduces a third-generation sharing experience with a single “hero link” for files and folders, simplifying access control and updates. Rolling out worldwide in October 2026, it affects SharePoint, OneDrive, and Microsoft 365 sharing. Admins can configure default link audiences per site, with no tenant-wide setting.
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(Updated) Microsoft Viva: Viva Glint: Configure user and survey data retention for deleted users in Viva Glint
MC1457227 | October 1 – Microsoft Viva Glint now has a single admin control to retain or delete survey responses and identifiable user data when users are deleted, effective September 2026. This consolidates prior settings, processes Microsoft Entra deletion signals, and requires admins to review configurations to align with organizational policies.
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Dynamics 365 Contact Center – Use after conversation presence status for wrap-up activities
MC1484604 | October 1 – We are announcing the ability to use after conversation presence status for wrap-up activities in Dynamics 365 Contact Center. This feature will reach general availability on October 30, 2026. How does this affect me? This feature disambiguates the Busy/DND presence state of a representative by letting the supervisor clearly distinguish agents performing after-conversation wrap-up work from representatives who are generally Busy or in DND, reducing operational…
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Power Automate – Enable Process Intelligence Studio in object-centric process mining
MC1484591 | October 1 – We are announcing the availability of Process Intelligence Studio in object-centric process mining in Power Automate Process Mining. This feature will reach general availability on October 31, 2026. How does this affect me? Process Intelligence Studio makes process analysis easier and more intuitive. It gives teams one place to explore data, compare scenarios, and uncover insights faster—without jumping between tools. With support for object-centric process mining, you can…
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Dynamics 365 Contact Center – Certify Contact Center for Windows 365 virtual computers
MC1484511 | October 1 – We are announcing the ability to certify Contact Center for Windows 365 virtual computers in Dynamics 365 Contact Center. This feature will reach general availability on October 31, 2026.How does this affect me?This feature certifies Dynamics 365 Contact Center for use on Windows 365 virtual PCs, ensuring the solution delivers a reliable and supported experience when accessed from cloud-based Windows desktops.The certification validates that core contact center…
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Microsoft Copilot: GPT 6.1 Sol and Claude Sonnet 5.5 beginning to roll out today
MC1483844 | October 1 – Microsoft Copilot is rolling out GPT-6.1 Sol and Claude Sonnet 5.5 AI models starting September 30, 2026, across Cowork, Copilot Studio, Word, Excel, PowerPoint, and Chat. Access requires enabling Anthropic and OpenAI subprocessors. Usage limits apply, with notifications and fallback options available. No action needed to enable.
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Microsoft Teams: Multi-line call history tabs in the Calls app
MC1484013 | September 30 – Microsoft Teams is redesigning the Calls app for multi-line calling users, organizing call history, voicemails, and recordings by phone line in separate tabs. This rollout begins October 2026, automatically enabling the feature for eligible users, with no impact on single-line users and no required action.
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Microsoft Teams: Hide organizer names in calendar view on Teams Panels
MC1484010 | September 30 – Microsoft Teams Panels will add an admin setting to show or hide organizer names in Calendar View, configurable via the Teams Rooms Pro Management portal or panel device. This feature, available with Teams Rooms Pro and Shared Spaces licenses, launches worldwide in early October 2026.
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Microsoft Defender for Office 365: New email submissions data in Advanced Hunting
MC1484009 | September 30 – Microsoft Defender for Office 365 will add two new Advanced Hunting tables, SubmissionEvents and SubmissionResults, providing security teams enhanced visibility into email submissions. Rolling out worldwide in early October 2026, these tables enable tailored detection workflows without requiring immediate action or compliance changes.
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Updated Copilot in Microsoft Edge Experience
MC1484007 | September 30 – Microsoft Edge’s Copilot is updated with a new icon, simplified UX, and enhanced features like Voice and Vision. The rollout begins mid-October 2026, requires no admin action, and maintains existing security, compliance, and admin controls. Users with Copilot enabled will see these changes automatically.
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Microsoft PowerPoint: Temporary removal of the Brand pane
MC1483886 | September 30 – The Brand pane in Microsoft PowerPoint has been temporarily removed to improve the experience based on user feedback. It is unavailable on Windows, Mac, and web versions. Existing Brand Kits remain intact, no admin action is needed, and updates will be communicated when the feature returns.
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Microsoft PowerPoint: Brand Guidelines and Style removed from new Brand Kit creation
MC1483859 | September 30 – Microsoft PowerPoint no longer includes Brand Guidelines and Style when creating new Brand Kits to simplify the process. Existing Brand Kits retain this content. No action or policy changes are needed, but users should be informed and documentation updated accordingly.
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Microsoft Defender for Cloud Apps: Support for enabling disabled File policies is ending
MC1483852 | September 30 – Microsoft Defender for Cloud Apps will retire File policies by January 6, 2027. Disabled File policies cannot be re-enabled after October 9, 2026. Organizations should migrate needed File policies to Microsoft Purview before these dates to maintain governance and enforcement.
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(Updated) Microsoft 365 Copilot: Copilot chat pane and Summary feature in OneNote Mobile (Android)
MC1309746 | September 30 – Microsoft 365 Copilot (Premium) will add a Copilot chat pane with a Summary feature in OneNote Mobile (Android) by end of October 2026, enabling users to generate summaries and ask questions about notes. Existing Copilot controls apply; no admin action is needed before rollout.
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(Updated) Microsoft 365 Copilot: Copilot chat pane and Summary feature in OneNote Mobile (iPhone)
MC1307979 | September 30 – Microsoft 365 Copilot introduces a new chat pane and Summary feature in OneNote Mobile (iPhone) for users with Copilot (Premium) licenses, enabling AI-generated summaries and note interactions. Rollout begins end of October 2026, with existing Copilot controls applying and no admin action required before deployment.
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(Updated) Viva Engage: Email updates for frontline users without an active Exchange mailbox
MC1309743 | September 30 – Starting mid-October 2026, Viva Engage will stop sending email notifications to users without valid mailboxes or routable email destinations, reducing email system load and improving delivery. Users with supported mailboxes and Teams notifications remain unaffected. No action is required, but review mailbox configurations and update support accordingly.
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Updates available for Microsoft 365 Apps for Current Channel
MC1483566 | September 30 – We’ve released updates to the following update channel for Microsoft 365 Apps: Current Channel
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Windows settings backup is now enabled by default for eligible devices
MC1483538 | September 30 – What and whyWith the release of Windows 11, version 26H2, the Windows settings backup policy is now enabled by default for eligible devices (see the Impact section). The new default applies only if admins haven’t explicitly configured the policy. We honor any existing explicit enable or disable setting.This update makes settings backup a baseline resiliency capability. If user devices ever enter recovery, you don’t have to guess whether…
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Dynamics 365 and Power Platform– Information about storage validation for Dataverse-only tenants
MC1483528 | September 30 – Beginning November 9, 2026, we are introducing staged storage validation for supported Dynamics 365 applications. The change gives administrators clearer visibility into storage use, advance notice of potential restrictions, and several ways to remain within capacity, including removing unneeded data, adding capacity, or enabling pay-as-you-go for sandbox environments. When a tenant exceeds its entitled Database, File, or Log capacity, environment creation, copy, restore, and recover…
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Business Skills in Work IQ – Default On
MC1483492 | September 30 – We are announcing the ability to use Business Applications in Work IQ to search and query Dataverse business data, Semantic Modeling, Business Skills, and access to Declarative Agents in Dataverse for all new environments. This feature will be enabled by default on September 30, 2026, for environments where Microsoft Copilot Premium and either Power Apps Premium or Dynamics 365 products are active. How does this affect me? This feature provides the ability to use…
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Dynamics 365 Contact Center – Let representatives set next presence to handle routing of work items
MC1483432 | September 30 – We are announcing the ability to let customer service representatives set their next presence to handle routing of work items in Dynamics 365 Contact Center. This feature will reach general availability on October 30, 2026.How does this affect me?With this feature, customer service representatives can schedule a future presence status, such as Away, Do Not Disturb, or Offline, while they are still handling active customer conversations. When a customer service…
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Power Platform admin center – Update to the Copilot Studio Authors feature name
MC1483430 | September 30 – We are announcing that we have updated the name of the Copilot Studio Authors tenant setting to Copilot Studio pay-as-you-go users in Copilot Studio. This feature controls who can use pay-as-you-go (paygo or PAYG) billing to create items in Copilot studio. The Copilot Studio Authors tenant setting in the Power Platform admin center was not created as a governance feature. It was created as a licensing access-control mechanism, required to make the Copilot Studio…
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Dynamics 365 Contact Center – Let representatives set next presence to handle routing of work items
MC1483419 | September 30 – We are announcing the ability to allow representatives to set next presence to indicate their future availability in Dynamics 365 Contact Center. This feature will reach general availability on October 30, 2026.How does this affect me? Next presence allows service representatives to queue their next availability status and stop receiving new assignments while the next presence status is pending. After all active conversations and work items are completed, the system…
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Power Platform admin center – Support Agent is now generally available; Legacy support experience retired
MC1483417 | September 30 – We are announcing the new Power Platform admin center (PPAC) Support Agent, our AI-powered support experience, which is designed to enable self-service success and streamline the support journey for admins. This feature will be the default support experience in Power Platform admin center on October 1, 2026.How does this affect me?The legacy support experience in PPAC is being retired and replaced with the Support Agent experience. Should the Support Agent experience issues,…
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Dynamics 365 Contact Center – Assign conversation to expert who engaged with the customer previously
MC1483413 | September 30 – We are announcing the ability to assign conversations to experts who engaged with the customer previously in Dynamics 365 Contact Center. This feature will reach general availability on October 30, 2026. How does this affect me? This feature will enable users to assign conversations to a previously engaged or preferred expert, leveraging historical interaction context, queue membership alignment, and expert availability, to ensure customers are reconnected with experts who…
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(Updated) Microsoft Purview: Data Loss Prevention and auto-labeling support for non-Microsoft applications
MC1449180 | September 29 – Microsoft Purview is expanding Data Loss Prevention and auto-labeling support to non-Microsoft apps like Google Workspace, Box, and Salesforce via Microsoft Defender for Cloud Apps connectors. Administrators can create and manage policies directly in Purview starting early October 2026, with global availability by late October.
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(Updated) Enhanced security and access controls for Outlook attachments
MC1472591 | September 29 – Outlook attachments now use a separate application configuration enforcing existing Conditional Access policies for download, preview, and upload. Non-compliant users are blocked from attachment actions. Admins should review policies, update help desk guidance, and notify users. Excluding attachments from policies requires creating a service principal for OwaDownloadAttachments.
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Microsoft 365 Copilot: Use Microsoft Agent 365 agents as connected agents in declarative agents
MC1478975 | September 29 – Microsoft 365 now supports Microsoft Agent 365 agents using the Agent2Agent protocol as connected agents in declarative agents, expanding integration options. Administrators manage and approve these agents via the Microsoft 365 admin center. Rollout began late August 2026, enabling enhanced AI interactions and workflows.
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Microsoft SharePoint Online: Select page canvas elements for Copilot-assisted editing
MC1478958 | September 29 – SharePoint Online now lets page authors with a Microsoft 365 Copilot license select specific page canvas elements for targeted Copilot editing, improving precision and user experience. This feature is generally available worldwide with no action required.
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(Updated) Microsoft Copilot: New ways to work across Microsoft Copilot and Microsoft 365
MC1479277 | September 29 – Microsoft Copilot updates include a new Home experience, enhanced Office integration, Code and Autopilot features with usage-based billing, Copilot Managed Runtime platform, and expanded capabilities in SharePoint, OneDrive, and Work IQ. Admins must configure spending policies for usage-based features; rollout begins in October 2026.
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Microsoft Teams: Users can temporarily pause all notifications
MC1465768 | September 29 – Microsoft Teams will let users temporarily pause notifications for a chosen time to reduce interruptions and improve focus. This feature, available on desktop, web, and mobile, rolls out worldwide from mid-September to late October 2026. No admin action is needed.
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(Updated) Microsoft 365 admin center: Agent Registry consolidates duplicate agent entries and adds version history
MC1477184 | September 29 – Microsoft 365 admin center’s Agent Registry now consolidates duplicate agent entries into single records with version history, simplifying management and governance. Rollout occurs mid-September to mid-October 2026. Admins should update reports and documentation due to changes in agent counts; no action is required.
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(Updated) Microsoft Purview | Insider Risk Management: Policy recommendation panel in IRM
MC1387681 | September 29 – Microsoft Purview Insider Risk Management will introduce a policy recommendation panel by early 2027 to help administrators identify and address gaps in insider risk policies using analytics. The feature is enabled by default, improves risk coverage visibility, and requires no user workflow changes or action.
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(Updated) Microsoft Teams: Personal message reminders for chat and channels
MC1470887 | September 29 – Microsoft Teams will introduce personal message reminders for chat and channel messages starting early November 2026, enabling users to set, manage, and receive notifications for reminders. The feature is private, enabled by default, requires no admin setup, and will roll out globally by December 2026.
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(Updated) Simplified Copilot experience in Microsoft Teams
MC1458472 | September 29 – Microsoft Teams’ Copilot experience will be updated in October 2026 with a simplified, chat-centered design featuring improved navigation, chat layout, agent interaction, and Work IQ controls. The full-screen view adds a Tasks view. No user or admin action is needed; admins should inform users and update documentation.
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(Updated) Simplified Copilot experience in Microsoft Outlook
MC1458470 | September 29 – Microsoft Outlook’s Copilot experience will be updated in October 2026 to a simplified, chat-centered design with improved navigation, chat layout, and Work IQ controls. The full-page and side pane experiences will refresh, with no action or licensing changes required. Administrators should update user communications and documentation accordingly.
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(Updated) Updates to Tenant External Recipient Rate Limit (TERRL) Quotas for New, Trial, and Education Tenants
MC1454397 | September 29 – Starting mid-September to November 2026, Exchange Online updates Tenant External Recipient Rate Limit (TERRL) quotas for new, trial, and education tenants, adjusting limits based on tenant age and license type. Trial quotas reduce to 500 recipients daily; EDU licenses get a new quota formula. No immediate action required.
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Sales in Microsoft 365 Copilot – Link meetings to CRM records automatically with AI
MC1482188 | September 29 – We are announcing the ability to link meetings to CRM records automatically with AI in Sales in Microsoft 365 Copilot. This feature will reach general availability on September 30, 2026.How does this affect me?Users will have upcoming customer meetings automatically matched to the most relevant CRM record using AI. The feature will match to an open opportunity when confidence is sufficient, or to an account when no opportunity meets the confidence threshold. The matched…
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Power Pages – Power Pages version 9.8.9.17 Production Release
MC1482160 | September 29 – Maintenance window start: October 17, 2026, at 6:00 PM UTC Maintenance window end: October 18, 2026, at 3:00 AM UTCThis deployment includes an updated website host and no solution update. This release includes security enhancements, customer-reported fixes, and performance updates. Release notes for this release can be viewed here.How does this affect me?During the update, the Portal…
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Power Pages – Power Pages version 9.8.9.17 Pre-Production Release
MC1481569 | September 29 – Maintenance window start: October 10, 2026, at 6:00 PM UTC Maintenance window end: October 11, 2026, at 3:00 AM UTC This is the pre-production deployment of Power Pages version 9.8.9.17 for Microsoft Dynamics 365. This deployment includes an updated website host and no solution update. This release contains fixes for issues reported by customers as well as performance and security updates. Release notes for this release can be viewed…
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Microsoft SharePoint: Retirement of SharePoint Page Agent (Frontier)
MC1481325 | September 29 – Microsoft will retire the SharePoint Page Agent (Frontier) for SharePoint Online starting mid-October 2026, completing by mid-November 2026. Users must switch to creating and refining pages directly with Copilot in SharePoint. Existing content remains accessible with no migration needed. Organizations should update training and workflows accordingly.
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Microsoft Defender XDR: Detection source support in alert tuning rules
MC1481318 | September 28 – Microsoft Defender XDR will allow alert tuning rules to target specific detection sources for finer control. This feature rolls out in public preview mid-October 2026 and general availability mid-November 2026. Existing rules apply to all sources unless updated. No action is needed unless customization is desired.
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Microsoft Teams: Enable Teams apps and agents for existing applications in your organization
MC1481316 | September 28 – Microsoft Teams will enable admins to discover and recommend Teams apps and agents linked to third-party applications already used in their organization, improving integration and reducing app switching. This feature, rolling out in November 2026, requires admin activation and uses sign-in signals to generate recommendations without automatic changes.
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Pin Copilot app to Windows taskbar for selected user groups
MC1481310 | September 28 – Microsoft 365 admins can now pin the Copilot app to the Windows taskbar for specific Intune-managed user groups via a new M365 admin center option. This rollout starts late September 2026 and requires the app to be pre-installed. Group-based pinning helps target departments or pilot groups.
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Microsoft Entra ID: Enhance protection of the authentication experience by blocking external script injection
MC1481309 | September 28 – Microsoft Entra ID will enhance sign-in security by enforcing a Content Security Policy blocking external script injection starting mid-October 2026. Only trusted Microsoft scripts will run, affecting organizations using script-injecting tools on login.microsoftonline.com. No action needed if such tools aren’t used.
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(Updated) Microsoft Purview | Information Protection: Auto-labeling per-policy coverage report
MC1456609 | September 28 – Microsoft Purview introduces a new auto-labeling policy coverage report to help administrators track labeling progress, identify issues, and assess policy effectiveness. Available after simulations, the report shows labeled, pending, and failed files for 30 days. Rollout begins early October 2026 worldwide. No action required.
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(Updated) Microsoft Copilot for Outlook: New Copilot entry point in Classic Outlook
MC1441784 | September 28 – Microsoft is updating the Copilot entry point in Classic Outlook to a new location next to the ribbon, enhancing visibility and providing AI-powered contextual recommendations. The rollout begins mid-October 2026 worldwide, with no changes to licensing or admin settings. No action is required, but user communication is recommended.
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(Updated) Microsoft Teams: Local Pan-tilt-zoom (PTZ) controls for Microsoft Teams Rooms on Windows
MC1459138 | September 28 – Microsoft Teams Rooms on Windows will add native local Pan-Tilt-Zoom (PTZ) camera controls on the in-room console for compatible cameras, enabling manual adjustments during meetings without extra remotes. Rollout begins September 2026, with automatic enablement on eligible devices and no action required from users.
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(Updated) Microsoft Purview: Auto-expanding archive capacity increases to 3 TB for eligible mailboxes
MC1472592 | September 28 – Microsoft Purview increases auto-expanding archive capacity for eligible Exchange Online mailboxes from 1.5 TB to 3 TB starting mid-October 2026. No extra configuration or charges apply. Administrators should verify license eligibility, monitor growth, and update documentation accordingly. Compliance impact is minimal.
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Connected Platforms – Agent 365 extends observability to third-party agents
MC1480873 | September 28 – Microsoft Agent 365 now integrates observability for third-party agents from Amazon Bedrock Classic, AgentCore, Google Vertex AI, and Anthropic Claude Managed Agents into a unified experience. Administrators can monitor runs, sessions, tool calls, and exceptions across platforms. Rollout begins September 2026, with no action needed for existing connections unless observability is desired.
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New SharePoint Mobile Experience on iOS and Android
MC1480870 | September 28 – The SharePoint mobile app for iOS and Android is redesigned around a personalized Discover experience, launching mid-October 2026 worldwide. It features improved site browsing, file previews, refreshed news, search, dark mode, and better performance, with no admin action or compliance concerns required.
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Microsoft 365 settings enabled by default for newly created Engage communities
MC1480869 | September 28 – Newly created Microsoft Viva Engage communities will have Microsoft 365 group settings enabled by default, subscribing members to community emails and calendar invites. Community owners can adjust these settings in the My Account portal. Rollout completes by mid-October 2026; no admin action is required.
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