Message center announcements
September 21, 2026 – September 27, 2026
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Microsoft Teams: File sharing enabled by default in external (federated) chats
MC1479514 | September 25 – Microsoft Teams will enable file sharing by default in external (federated) chats starting late October 2026, simplifying cross-organization collaboration by removing manual permission steps. Admins can disable this via PowerShell. Files are stored in the sender’s OneDrive with existing security controls applied.
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Microsoft Teams: Updates to Teams Events licensing for business, frontline, and education customers
MC1479512 | September 25 – Microsoft Teams Events licensing is updated into foundational and advanced features, with advanced features requiring Teams Enterprise licenses. Teams Premium no longer includes Teams Events capabilities. Event attendee limits vary by license, with capacity packs needed for over 3,000 attendees. Changes roll out in September 2026.
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Microsoft Planner: Meeting-created plans will expire after 180 days of inactivity
MC1479508 | September 25 – Meeting-created Microsoft Planner plans from Teams expire and delete after 180 days of no task activity, starting October 2026. Organizers get advance email notices and can extend plans by selecting “Keep plan.” Tasks in Loop and meeting notes remain unaffected. Deleted plans recoverable within 30 days via admin request.
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(Updated) Unified management of app and agent availability and installation in Teams, Outlook, and the Microsoft 365 app
MC796790 | September 25 – Microsoft is unifying app and agent availability and installation management across Teams, Outlook, and Microsoft 365 admin centers to ensure consistent policies. The rollout begins late September 2025 in phases, with full installation unification by September 2026. Admins can manage apps from either portal with synchronized settings.
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Microsoft Defender for Office 365: Teams user reporting enabled by default
MC1478463 | September 25 – Microsoft Defender for Office 365 will enable Teams user reporting by default starting late October 2026 for licensed organizations. Users can report suspicious Teams content to improve threat detection. Admins can review or opt out via a dedicated Defender portal page before October 25, 2026.
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(Updated) Microsoft Teams Rooms: Identify in-room participants with IntelliFrame people labels
MC1419798 | September 24 – Microsoft Teams Rooms on Windows will introduce IntelliFrame people labels by mid-November 2026, displaying names and contact cards of enrolled in-room participants to improve hybrid meeting clarity. The feature enables automatic labeling based on voice and face recognition, requires Teams Rooms Pro licenses, and respects existing enrollment policies.
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Microsoft Defender for Endpoint: Support for Amazon Linux 2 (ARM64) retiring October 31, 2026
MC1392568 | September 23 – Support for Microsoft Defender for Endpoint on Amazon Linux 2 (ARM64) will retire on October 31, 2026. After this date, no updates or support will be provided. Organizations must identify affected devices, prevent upgrades beyond version 101.25122.0004, and migrate to a supported Linux distribution before the deadline.
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Microsoft Word for the web: Retirement of the “@” entity insertion experience on the document canvas
MC1478006 | September 23 – Microsoft is retiring the CIQ-based “@” entity insertion on Word for the web’s document canvas by late October 2026, aligning it with other Microsoft 365 apps. Users cannot invoke this menu anymore, but @mentions in comments remain unaffected. No admin action is required; users should be informed.
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Microsoft Teams: Removing Copilot from the chat list
MC1477999 | September 23 – Starting October 2026, Microsoft Teams will remove the Copilot chat list entry point, directing users to access Copilot solely through the Copilot app in the Teams app bar for a streamlined experience. Mobile users are unaffected, and no data will be lost. No action is required.
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(Updated) Microsoft Teams: A refreshed in-meeting experience with simpler controls and a smarter share panel
MC1317197 | September 23 – Microsoft Teams is updating meeting controls and the share panel to simplify use, reduce accidental actions, and improve sharing confidence. Changes include center-aligned controls, a separated Leave button, customizable controls, and a redesigned share panel with live previews and two-step sharing. Rollout spans July 2026 to January 2027 across desktop and web platforms. No tenant-level disable option; users can temporarily opt out during rollout. Organizations should review app pinning policies and update training materials.
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Microsoft Agent 365: Simplified Agent 365 CLI setup experience
MC1477186 | September 22 – Agent 365 CLI setup is simplified with a Microsoft-managed enterprise application, removing the need for tenant-owned client apps. Existing setups remain unchanged. The update respects security controls, requires no action for current users, and recommends updating to the latest CLI version and reviewing authentication guidance.
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Microsoft OneDrive: New pay-as-you-go storage billing option
MC1477185 | September 22 – Microsoft OneDrive introduces a pay-as-you-go storage billing option, allowing admins to let selected accounts exceed licensed storage quotas with automatic usage-based billing. Public preview is available now; general availability starts November 2026. No action is required unless opting in. Compliance impact is minimal.
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(Updated) Microsoft Teams: Front-of-room view control for Webinars and structured meetings in Teams Rooms on Android
MC1316231 | September 22 – Microsoft Teams Rooms on Android will default front-of-room displays to attendee view during webinars and structured meetings starting mid-June 2026, enhancing in-room participant experience. Presenters keep full control via console. The feature requires a Teams Rooms Pro license, is enabled by default, and needs no user action.
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(Updated) Default visibility of additional profile card properties in Microsoft 365 profile cards
MC1438571 | September 22 – Microsoft 365 will change the default visibility of 11 profile card properties to display by default when populated, starting late October 2026. Administrators can review and hide specific properties using Microsoft Graph APIs before rollout. Visibility management remains available via the Microsoft 365 admin center.
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(Updated) Microsoft Teams: New chat sections for muted and meeting chats
MC1269864 | September 21 – Microsoft Teams will introduce two new chat sections—Muted chats (enabled by default) and Meeting chats (disabled by default)—to organize conversations. Rollout starts mid-October 2026, completing by mid-November. Users can enable, disable, and reorder these sections; no admin action is required.
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Microsoft SharePoint: Changes to the FAQ web part authoring experience
MC1476319 | September 21 – The SharePoint FAQ web part will shift AI-assisted FAQ creation to Copilot in SharePoint, while retaining manual FAQ editing in the web part. Rollout starts late October 2026. Existing content remains unchanged, requiring no migration. No admin action needed; inform authors and update training accordingly.
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Microsoft 365 Copilot: Updates to the Researcher experience
MC1476269 | September 21 – Microsoft 365 Copilot is updating Researcher to use shared Copilot components, retiring specific controls and tabs by December 30, 2026. Core research functions remain, but users must adapt to new navigation. No admin action is needed; admins should update documentation and inform users.
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(Updated) Surveys agent retirement and transition to Copilot in Microsoft Forms
MC1421920 | September 21 – Microsoft is retiring the Surveys agent by August 31, 2026, transitioning users to a unified Copilot-powered experience within Microsoft Forms. Existing users lose access by December 2026. No licensing changes are needed; workflows continue seamlessly with enhanced AI features. Users should be informed and documentation updated accordingly.
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(Updated) Microsoft Teams: AI meeting archive file generation
MC1429018 | September 21 – Microsoft Teams will generate AI meeting archive files starting early November 2026 to improve Copilot and Facilitator responses while ensuring privacy. Archives are stored in tenant-owned SharePoint, accessible only to meeting participants, and governed by configurable retention policies. Admin controls will be available before rollout.
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Agents and Skills in CIQ
MC1479519 | September 25 – Starting mid-September 2026, CIQ will support inserting Agents and Skills directly into prompts via @ or /. This feature enhances discovery and use of specialized capabilities within workflows, requires no user action, and is enabled by default where supported. Informing users and updating training is recommended.
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SharePoint: HTML pages
MC1479517 | September 25 – SharePoint will support creating, uploading, editing, and publishing HTML pages, including Copilot-assisted page creation. Rollout starts October 2026 (preview) and completes December 2026 (general availability). Pages are stored in the Site Pages library with existing permissions. No admin action is required before rollout.
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Microsoft Outlook: Link preview retirement
MC1479516 | September 25 – The link preview feature in new Outlook for Windows and Outlook on the web has been retired worldwide. Links will remain clickable but no longer show preview cards. No action is needed, but users should be informed about this change.
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Outlook: Insert Symbols
MC1479513 | September 25 – Outlook will allow users to insert symbols into emails via the Insert tab, rolling out worldwide from October to December 2026. No admin action is needed, but users should be informed, and training materials updated. This affects new Outlook for Windows, Outlook on the web, and Exchange Online.
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Spell check before sending emails in new Outlook
MC1479509 | September 25 – New Outlook will offer automatic spell check before sending emails, rolling out worldwide from mid-October to mid-December 2026. Users can enable this feature to reduce spelling errors without manual checks. No admin action is needed; update user guidance accordingly. No compliance issues identified.
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Video recap in Microsoft Teams supports more languages
MC1479506 | September 25 – Microsoft Teams Video recap, which uses AI to create narrated highlight videos from meetings, now supports 23 languages and 31 locale variants. Available to Microsoft 365 Copilot license users, it requires meetings to be 10–90 minutes, recorded, and transcribed. Rollout begins late September 2026.
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ADO MCP in Copilot
MC1479505 | September 25 – The Azure DevOps MCP Connector integrates Azure DevOps with Microsoft 365 Copilot Deep Work, enabling natural-language queries on work items and project data. Rolling out worldwide in October 2026, it supports multi-step workflows, admin controls, and user-confirmed write actions, enhancing project analysis and automation.
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Microsoft Defender for Cloud Apps: Permission changes for select App Governance Entra roles
MC1479503 | September 25 – Microsoft Defender for Cloud Apps is updating App Governance permissions for select Microsoft Entra roles to align with Defender XDR Unified RBAC. Changes affect Cloud App Security, Compliance Administrator, and Compliance Data Administrator roles starting mid-October 2026. Admins should review and adjust role assignments accordingly.
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Microsoft Purview | DLP-Create Purview network data security policies without pay-as-you-go configuration
MC1478970 | September 25 – Microsoft Purview network data security policies can now be created without pay-as-you-go configuration, using Entra Global Secure Access Internet Access with appropriate licensing. Non-Microsoft integrations still require pay-as-you-go. Rollout begins late September 2026, enabling policy creation to protect sensitive data in network traffic automatically.
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(Updated) Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding
MC1187682 | September 25 – Microsoft Edge for Business now supports Microsoft 365 Copilot Chat for summarizing and contextualizing multiple browser tabs, YouTube videos (available), and Microsoft 365 documents (rolling out mid-October 2026). The feature is off by default, respects DLP and policy settings, and requires Entra ID sign-in and proper licensing.
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Interim time zone guidance for Alberta, British Columbia, and Morocco
MC1479468 | September 25 – What and why:Three time zone changes affect Windows devices in Alberta, British Columbia, and Morocco, with Windows releasing fixes across September and October 2026. Alberta and affected Northwest Territories locations are permanently moving to UTC-6 on November 1, 2026. Most of View more
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(Updated) Microsoft Teams: Proximity join support for attendees in Teams events from Teams Rooms on Windows and Android
MC1461157 | September 25 – Microsoft Teams Rooms on Windows and Android will support attendee proximity join for Teams events, enabling users to quickly connect to nearby room systems. Rollout starts November 2026, completing by December. No action is needed; the feature will be enabled automatically to simplify joining meetings.
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Microsoft Copilot: New ways to work across Microsoft Copilot and Microsoft 365
MC1479277 | September 25 – Microsoft Copilot is evolving with a new Home experience, enhanced Office capabilities, Code and Autopilot features, and an enterprise-grade Managed Runtime platform. Updates include improved Chat, usage-based billing, admin controls for spending policies, Copilot in SharePoint and OneDrive, and integration with Dynamics 365 and Power Platform. Rollouts begin in October.
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(Updated) Microsoft Teams: Enhanced IntelliFrame with AI data channel for intelligent cameras
MC1442614 | September 25 – Microsoft Teams Rooms on Windows will gain enhanced IntelliFrame AI features via certified intelligent cameras, enabling faster speaker framing, participant recognition, and smoother views, especially in low bandwidth. AI processing occurs on-device with metadata sent through a dedicated channel. Rollout begins mid-January 2027, enabled by default, requiring no admin action.
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(Updated) Create interactive slides in PowerPoint with Copilot skill (Windows and Mac)
MC1461152 | September 25 – PowerPoint is introducing “Create interactive slides” for Windows, Mac, and web, enabling users to make interactive visuals for complex concepts and data. Available first to Microsoft 365 Insider Beta and Frontier users, rollout completes by October 2026. No action required; admins should prepare support and training.
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Dynamics 365 Sales -Streamline Quick Campaigns for confident, one-time bulk email outreach
MC1479296 | September 25 – We are announcing the ability to streamline Quick Campaigns for confident, one-time bulk email outreach in Dynamics 365 Sales. This feature will reach public preview on September 25, 2026. How does this affect me? This feature allows you to use an enhanced Quick Campaign experience that keeps one-time bulk emails, post-meeting follow-ups, event or webinar recaps, policy updates, or announcements to many customers at once in a single, streamlined flow. Sellers can create,…
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Microsoft Copilot: Evolving the Copilot pricing model and new FinOps capabilities for AI
MC1479276 | September 25 – Microsoft is evolving Copilot’s pricing with a user subscription license for everyday AI and usage-based billing (UBB) for advanced AI via Copilot Credits. New FinOps tools enable admins to manage costs, spending policies, and monitor usage. UBB rolls out in Q4 2026; admins must set policies to enable credit use.
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Microsoft 365 Copilot: Use Microsoft Agent 365 agents as connected agents in declarative agents
MC1478975 | September 25 – Microsoft 365 now supports Microsoft Agent 365 agents using the Agent2Agent protocol as connected agents in declarative agents, enhancing AI interactions and workflows. Administrators manage and approve these agents via the Microsoft 365 admin center. Rollout begins late August 2026, expanding flexibility and governance for developers and users.
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Deprecation of Citrix mVPN Support in Microsoft Edge for Android
MC1478969 | September 24 – Microsoft Edge for Android will retire Citrix Mobile VPN (mVPN) integration starting mid-September 2026 due to compatibility issues. Organizations using this integration must identify affected users, assess dependencies, plan migration to alternative solutions, and communicate changes before support ends. Other Edge features remain unaffected.
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SharePoint: Improved site metadata size reporting
MC1478966 | September 24 – SharePoint will improve site metadata size reporting by including document library field data, providing a more complete usage view. The 1 TB metadata limit remains, but reported sizes may increase, potentially blocking new metadata additions if exceeded. Rollout starts October 20, 2026, with no content changes.
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Microsoft Purview: Data Lifecycle Management – Retention for Copilot Memory
MC1478965 | September 24 – Microsoft Purview Data Lifecycle Management will support retention of inactive Microsoft 365 Copilot memory versions for compliance and investigation. Historical memory items are stored in users’ Exchange mailboxes, accessible via eDiscovery. Rollout begins late September 2026. No immediate action is required; organizations should review retention policies and governance.
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Microsoft 365 Copilot in PowerPoint for Windows: Organization skill support
MC1478961 | September 24 – Microsoft 365 Copilot in PowerPoint for Windows will support organization skills that admins can upload and share tenant-wide via the Microsoft 365 admin center, enabling centralized governance and consistent user experiences. Rollout begins September 2026, with no immediate action required unless publishing skills.
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Microsoft 365 Copilot in PowerPoint for Mac: Organization skill support
MC1478960 | September 24 – Microsoft 365 Copilot in PowerPoint for Mac will support organization skills that admins can upload and share tenant-wide via the Microsoft 365 admin center, enabling centralized governance and consistent user experiences. Rollout begins September 2026, with no immediate action required unless publishing skills.
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Microsoft SharePoint Online: Select page canvas elements for Copilot-assisted editing
MC1478958 | September 24 – 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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Microsoft 365 profile card: View dotted-line managers in the organization panel
MC1478957 | September 24 – Microsoft 365 profile cards will show dotted-line managers in the organization panel starting October 2026, helping users understand complex reporting structures. This additive update requires organizations to provide dotted-line manager data via HR systems like SAP SuccessFactors or Workday. No action is required unless enabling this feature.
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Microsoft Windows Autopatch: enhancements to update approval control and management capabilities
MC1478956 | September 24 – Windows Autopatch enhancements, rolling out Sept 1–Oct 15, 2026, offer improved control over Windows quality, .NET Framework, and quick machine recovery updates. Features include customizable automatic/manual approvals, deferral settings, update pausing, and detailed per-device reporting for better update management.
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Final reminder: Microsoft Project Online retires on September 30, 2026
MC1478955 | September 24 – Microsoft Project Online will retire on September 30, 2026. Users must migrate to alternatives like Microsoft Planner, Project Server Subscription Edition, or Project Operations before then to avoid data loss. Organizations should contact a Microsoft partner immediately to plan the transition and notify users accordingly.
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Breakout Rooms for Microsoft Teams Webinars now support up to 1,000 participants and 100 rooms
MC1478949 | September 24 – Breakout Rooms in Microsoft Teams webinars now support up to 1,000 participants and 100 rooms, enabling large-scale interactive sessions like training and workshops. No admin action is needed; organizers should be informed and guidance updated accordingly. No compliance issues identified. Available now.
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Microsoft 365 Apps: Cloud Update – Extended rollback support for Monthly Enterprise Channel
MC1478946 | September 24 – Microsoft 365 Apps Cloud Update will allow Monthly Enterprise Channel devices to roll back to releases from two versions prior with security updates, maintaining that state until updates resume. Rolling out worldwide in September 2026, this feature enhances recovery options without automatic changes to devices.
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Windows Deployment Services (WDS) deprecation in the next Windows Server release
MC1478819 | September 24 – What and why:Microsoft plans to deprecate the Windows Deployment Services (WDS) server role beginning with the next release of Windows Server. This includes the inbox WDS role, WDS services, management tools, and interfaces, and WDS-provided Preboot Execution Environment (PXE) boot functionality. Begin planning your migration to alternatives. For example,…
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Power Pages – Power Pages version 9.8.9.17 Early Upgrade Release
MC1478813 | September 24 – Maintenance window start: September 26, 2026, at 6:00 PM UTC Maintenance window end: September 27, 2026, at 3:00 AM UTC This is the early upgrade 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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(Updated) Microsoft Purview | Data Lifecycle Management: New integration with Adaptive protection
MC791110 | September 24 – Microsoft Purview is introducing a public preview of Adaptive protection integration with Data Lifecycle Management, automatically retaining deleted content from elevated risk users for 120 days. Rollout begins June 2024, with general availability in late 2026. Admins can enable this feature via the Purview compliance portal.
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Migrate Copilot Studio agents to Microsoft Entra Agent ID
MC1478488 | September 24 – On August 24, 2026, we initiated the gradual roll out of self-service migrations to Microsoft Entra Agent IDs for Copilot Studio agents in Power Platform Advisor. Beginning on September 2026, automatic migrations of agents without Entra Agent ID to Microsoft Entra Agent ID were also initiated. Copilot Studio agents created before May 2026 may still use legacy app-registration identities. We recommend migrating any of your remaining agents to Microsoft Entra Agent ID. How does this…
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(Updated) Microsoft Teams: AI-powered notes for in-person meetings with Facilitator in Teams Rooms on Android
MC1307888 | September 24 – 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 November 2026, requiring Teams Rooms Pro licenses and specific tenant settings.
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Microsoft Purview | Data Loss Prevention: Admin-configurable compliance URL in M365 Copilot data access messages
MC1478467 | September 24 – Microsoft Purview DLP now lets admins configure the destination URL for the “Learn about access restrictions” link in Microsoft 365 Copilot data access messages. This directs users to organization-specific compliance guidance instead of Microsoft’s public documentation. The feature rolls out worldwide in late September 2026 and requires admin configuration.
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Microsoft Defender for Endpoint: Update to Linux connectivity requirements with new service URLs to allowlist
MC1388718 | September 23 – Microsoft Defender for Endpoint on Linux now requires allowlisting new service URLs specific to tenant types for delivering internal configuration updates, feature rollouts, and critical issue mitigations. This update is available worldwide, with no change to user experience, and ensures devices receive the latest features and optimizations.
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Microsoft Defender for Office 365: View approver details for remediation actions in Advanced Hunting
MC1478005 | September 23 – Microsoft Defender for Office 365 added an ApproverUpn column to the EmailPostDeliveryEvents table in Advanced Hunting, showing who approved remediation actions. This enables faster investigations without using Action Center. The feature is available worldwide, enabled by default, and requires no action from administrators.
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Microsoft 365 Copilot: Retirement of the Sites control in Researcher
MC1478004 | September 23 – The Sites control in Microsoft 365 Copilot Researcher for Frontier users will be retired by late September 2026. Users can still specify preferred websites directly in prompts. No admin action or new settings are needed; existing web search controls remain unchanged. Inform users and update documentation accordingly.
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Microsoft Teams: Admins can control profanity filtering in meeting transcripts
MC1478003 | September 23 – Microsoft Teams will let admins control profanity filtering in meeting transcripts via a new meeting policy setting, on by default. Turning it off allows profane words to appear in live and saved transcripts. This affects meeting policies, not participant caption preferences, and rolls out October 2026.
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Retirement of Viva Insights (personal insights) and Viva Learning usage reports
MC1477996 | September 23 – Viva Insights personal insights and Viva Learning usage reports will be retired from the Microsoft 365 admin center by mid-November 2026. Admins should access Viva Learning metrics directly in the app and update documentation and communications accordingly.
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(Updated) Microsoft Teams: Facilitator can join channel meetings
MC1461165 | September 23 – Microsoft Teams will allow adding Facilitator to channel meetings starting early November 2026. Facilitator can take notes, manage agendas, answer questions, and handle tasks. No action or compliance changes are required. The rollout completes worldwide by early December 2026.
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Microsoft Defender for Cloud Apps: Retirement of EWS detections in App Governance
MC1477180 | September 23 – Exchange Web Services (EWS) in Exchange Online will be retired starting October 1, 2026, with related Microsoft Defender for Cloud Apps app governance detections ending October 15, 2026. Organizations not using EWS need no action; those continuing EWS use will lose related alerts and should migrate away from EWS.
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Microsoft Purview | Data Lifecycle Management: Retention based on “last accessed” for OneDrive and SharePoint files
MC999442 | September 23 – Admins can apply retention policies in OneDrive and SharePoint to delete Office files based on their last accessed date, starting preview in late November 2026 and general availability in January 2027. This improves data relevance for Microsoft 365 Copilot. No admin action is needed before rollout.
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(Updated) Microsoft Viva Engage: New left navigation controls for collapsing, resizing, and managing favorites
MC1470424 | September 23 – Microsoft Viva Engage is updating its left navigation with features to collapse, resize, reorder, and favorite unlimited communities. These user-initiated enhancements improve organization and efficiency across web, Teams, and Outlook platforms, rolling out worldwide by October 2026 with no admin action required.
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(Updated) Microsoft OneNote: Copilot notebook available in OneNote on Mac
MC1409042 | September 23 – Copilot Notebook, a new AI-powered workspace in OneNote on Mac, helps users organize and analyze notes using Microsoft 365 Copilot. It requires a Copilot license, is enabled by default, and will roll out worldwide from late August to mid-October 2026. No admin action is needed.
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(Updated) Enhanced security and access controls for Outlook attachments
MC1472591 | September 23 – 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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Updates available for Microsoft 365 Apps for Current Channel
MC1477282 | September 23 – We’ve released updates to the following update channel for Microsoft 365 Apps: Current Channel
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Microsoft OneDrive: OneDrive sync supports up to 1 million items on macOS
MC1477187 | September 22 – OneDrive sync on macOS will increase its item limit from 300,000 to 1 million per device, starting with a Public Preview in mid-October 2026 for Insiders ring users. Devices not meeting hardware requirements will remain at the current limit, with no disruption expected.
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Microsoft 365 admin center: Agent Registry consolidates duplicate agent entries and adds version history
MC1477184 | September 22 – The Microsoft 365 admin center’s Agent Registry will consolidate duplicate agent entries into single records with version history, simplifying management. This change, rolling out worldwide in September 2026, affects admins and may alter agent counts and related reports. No action is required, but review of dependent processes is recommended.
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Microsoft Purview: Data Loss Prevention for Microsoft Cowork
MC1477182 | September 22 – Microsoft Purview Data Loss Prevention (DLP) is expanding to cover Microsoft Cowork, applying existing and new DLP policies from Microsoft Copilot automatically. This includes sensitivity label grounding, prompt blocking, and web search DLP for sensitive data. Rollout begins late September 2026 with no required user action.
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Microsoft Purview | Information Protection: Apply default SharePoint library sensitivity labels to data at rest
MC1477181 | September 22 – Microsoft Purview will enable an auto-labeling policy to apply default SharePoint library sensitivity labels to existing files, improving labeling coverage without user action. This opt-in feature, rolling out in October 2026, requires administrator configuration and supports up to 10 SharePoint sites per policy.
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(Updated) The September 2026 Windows non-security preview update is now available
MC1477005 | September 22 – (Updated 9-22-2026: Added a note indicating the September 2026 non-security preview update is the final preview update for Windows 11, version 24H2.)The September 2026 non-security preview update is now available for Windows 11, versions 26H1, 25H2, and 24H2. Information about the contents of this update is available in the release notes, which are accessible from the…
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(Updated) Microsoft Teams: Enhanced live captions settings and right-side panel view
MC1447682 | September 22 – Microsoft Teams is enhancing live captions with a new right-side panel view and a consolidated settings menu for easier configuration. Users can auto-enable captions, submit feedback, and benefit from synchronized translation settings. Rollout begins mid-August 2026, completing worldwide by October 2026, with no admin action required.
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(Updated) Microsoft Teams: Specify who has control of production tools in meetings and webinars
MC1443520 | September 22 – Microsoft Teams will introduce a default meeting option allowing organizers to specify who controls production tools in meetings and webinars, improving event management by assigning production roles separately from presenters. Rollout starts mid-August 2026, completing by October 2026, with no admin action required.
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(Updated) Microsoft Teams: Enhanced delegated calling with delegate call access restrictions and join notifications
MC1429012 | September 22 – Microsoft Teams is enhancing call delegation with a new “Lock an Ongoing Call” feature to restrict delegate participation and an optional warning tone notifying when a delegate joins or resumes a call. These updates improve privacy and transparency during delegated calls, rolling out globally from August to October 2026.
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(Updated) Scoped SharePoint search in Teams (SharePoint app, also called Viva Connections)
MC1332816 | September 22 – Starting end of June 2026, Teams’ SharePoint app (Viva Connections) search will scope results to SharePoint content, showing suggestions in Teams and opening results in SharePoint. The feature is default-enabled, respects permissions, requires no admin changes, and aims to improve search relevance within Teams.
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(Updated) Assign open shifts in Microsoft Teams Shifts
MC1324280 | September 22 – Microsoft Teams Shifts introduces “Assign open shifts,” enabling managers to automatically assign open shifts based on availability, time off, historical patterns, and rules. Rolling out worldwide from mid-June to October 2026, the feature is optional, reviewable before publishing, and controlled by existing scheduling permissions.
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(Updated) Microsoft Teams: Unblock users to send message while file is uploading in the background
MC1317836 | September 22 – Microsoft Teams will allow users to send messages while files upload asynchronously in the background, improving real-time collaboration. This update, rolling out from August to October 2026, affects all platforms and requires no action. Compliance and file-sharing policies remain unchanged.
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(Updated) Microsoft Teams: Secure Reliable Transport (SRT) support for Teams meetings and events
MC1323270 | September 22 – Microsoft Teams will support Secure Reliable Transport (SRT) for town halls and live events starting June 2026, alongside existing RTMP. SRT offers improved reliability with backup streams and automatic failover. IT admins must enable SRT via policy. No impact on attendees; existing workflows remain supported.
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(Updated) Microsoft Teams: Identify external bots joining your Teams meetings
MC1251206 | September 22 – Microsoft Teams will detect and label external meeting assistant bots joining meetings, giving organizers control to approve, deny, or remove them. A new admin policy will manage bot handling. Rollout begins mid-May 2026, completing by October 2026, enhancing meeting security and compliance.
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(Updated) Microsoft Teams: Building‑level insights on the Teams Rooms Pro Management portal recommended actions page
MC1257308 | September 22 – Microsoft is adding building-level insights to the Teams Rooms Pro Management portal’s recommended actions page, highlighting buildings with high Teams Rooms usage and BYOD rooms to improve consistency. This feature, enabled by default for eligible licenses, will roll out from mid-June to October 2026 worldwide. No action is required.
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Dynamics 365 Project Operations – Enable on-account category in Dataverse
MC1472252 | September 22 – We are announcing the ability to sync transaction categories for retainers and milestones between Microsoft Dataverse and Dynamics 365 in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026.How does this affect me?This feature enables categorization of retainers, milestones, and advances for accurate revenue posting in Dynamics 365 Finance. This feature will introduce the following capabilities:Expose Transaction Category…
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(Updated) Microsoft Teams town halls now support backup Real-Time Messaging Protocol (RTMP) streams
MC1261595 | September 22 – Microsoft Teams town halls will support backup RTMP streams to improve live event reliability, automatically switching to a secondary stream if the primary fails. This feature, available by default with no admin setup needed, rolls out worldwide from late April to October 2026, affecting organizers using RTMP workflows.
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(Updated) Microsoft Teams: Recently used emojis sync across devices
MC1256307 | September 22 – Microsoft Teams will sync recently used emojis and reactions across all devices by late July 2026 (general availability). The feature is enabled by default, requires no user action, and maintains existing admin settings without impacting data flow or compliance. Admins may update documentation or inform support teams.
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(Updated) Microsoft Teams: New user setting to view incoming calls in a small window
MC1045221 | September 22 – Microsoft Teams will introduce a new default setting allowing users to view incoming calls in a small, resizable window to reduce disruption. The feature will roll out from May 2025 to October 2026 across all platforms, requiring no admin action but user notification is recommended.
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Power Automate – Create and manage custom dashboard tiles
MC1472191 | September 22 – Update: Release of this feature has been postponed; we will announce a new date in the future. We are announcing the ability to create and manage custom dashboard tiles in Power Automate. This feature will reach public preview on September 30, 2026. How does this affect me? This feature enables users to monitor the metrics that matter most to their role or team without relying on external tools. By allowing personalized visualizations directly within Automation…
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(Updated) Notice: New file policy creation in Microsoft Defender for Cloud Apps is ending
MC1469552 | September 22 – Microsoft Defender for Cloud Apps will stop new file policy creation on October 1, 2026, and retire existing file policies by January 6, 2027. Customers should migrate DLP file policies to Microsoft Purview for continued protection and unified data loss prevention management.
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Skills in Declarative Agents becoming generally available
MC1476977 | September 22 – Skills in Declarative Agents, modular reusable capabilities for Microsoft 365 Copilot, will be generally available worldwide by end of September 2026. They enhance scalability, security, and governance without requiring action. Organizations using Information Barriers are currently unsupported. Existing governance and compliance controls remain in effect.
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Customized PowerBI reports behavior after major report updates
MC1476322 | September 21 – Microsoft Viva Insights customized Power BI reports will remain tied to their original report versions and won’t auto-update with major report changes. Users must create new customized reports from the latest versions to access updated data and features. No admin action or policy changes are needed.
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Microsoft 365 Copilot: Federated Copilot connectors support create, update, and delete actions
MC1476316 | September 21 – Microsoft 365 Copilot’s federated connectors will support create, update, and delete actions in third-party services starting October 2026. Actions require user approval and use the user’s permissions. Administrators can review and disable connectors via the admin center. No user action is needed to receive this feature.
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Microsoft Defender for Office 365: Remediation actions from the Teams message entity flyout
MC1476237 | September 21 – Microsoft Defender for Office 365 will enhance the Teams message entity flyout by late September 2026, enabling security admins to submit messages to Microsoft and block senders or domains in one workflow. This streamlines Teams message investigations for Plan 1 and Plan 2 customers without requiring configuration changes.
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Dynamics 365 Field Service – Automate optimizations with Scheduling Operations Agent (Preview)
MC1476008 | September 21 – We are announcing the ability to automatically schedule and run recurring optimizations through the Scheduling Operations Agent in Dynamics 365 Field Service. This feature will reach public preview on September 30, 2026.How does this affect me?This feature enables the following capabilities:Configure recurring optimization schedules: Create optimization plans that automatically run on a defined schedule, eliminating the need to manually start each optimization…
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(Updated) Microsoft Copilot Word: Document summarization experience moving
MC1454113 | September 21 – Starting September 2026, Microsoft Word’s document summarization will move from the Top of Doc experience to other Copilot surfaces, maintaining AI-powered summaries accessible via Copilot prompts. No admin action is needed, but user communication and training updates are recommended.
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(Updated) eSignature for Microsoft 365 – Recipient groups
MC1290821 | September 21 – Microsoft 365 eSignature introduces recipient groups, allowing up to 10 people per recipient slot, with the first signer fulfilling the requirement. This reduces delays in signature workflows. Public preview ends late September 2026; general availability runs December 2026. No admin action needed; feature respects existing policies.
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(Updated) Allow connections to copilot.cloud.microsoft before the Copilot URL redirect
MC1462915 | September 21 – Starting September 2026, Microsoft will redirect users from m365.cloud.microsoft to copilot.cloud.microsoft. Organizations must ensure network and security controls allow connections to *.cloud.microsoft to avoid Copilot access disruptions across web, desktop, and Edge apps. Validate connectivity and update allow lists before October.
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Dynamics 365 Contact Center – Enable AI-assisted time-off and swap requests
MC1475801 | September 21 – We are announcing the ability to enable AI-assisted time-off and swap requests in Dynamics 365 Contact Center. This feature will reach general availability on October 1, 2026. How does this affect me? This feature enables an AI-assisted solution that provides automation for workforce schedules and approvals, governance across time‑off requests, shift bidding, and shift swapping. Supervisor oversight is supported throughout, along with configurable approval rules, and…
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In-app browsing in Copilot app
MC1474455 | September 21 – The Microsoft Copilot app now supports in-app browsing on Windows and Mac, allowing users to open websites side-by-side with chat. Administrators can opt-in selected devices to test this feature, manage policies, and prepare support. Browsing data is stored locally, and users can open links externally if desired.
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Dynamics 365 Project Operations – Perform bulk operations for bookings on schedule board
MC1475456 | September 21 – We are announcing the ability to move or reassign multiple bookings at once, directly from the schedule board in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? This feature eliminates repetitive, manual edits required during common scenarios such as resource replacement, timeline shifts, scope changes, or schedule realignments. The feature significantly reduces administrative effort and helps you respond…
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