Message center announcements
September 14, 2026 – September 20, 2026
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Retirement of Microsoft 365 Companion apps
MC1474111 | September 18 – Microsoft 365 companion apps (Calendar, People, Files) will retire on December 16, 2026, ceasing support and functionality. Admins must stop new installations and remove existing apps. Core Microsoft 365 features remain unaffected, accessible via Outlook, Teams, and other tools. Users should be informed and guided accordingly.
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Microsoft Entra ID: Follow-up on SMS first-factor sign-in retirement and upcoming changes
MC1474104 | September 18 – Microsoft is retiring SMS first-factor sign-in for Microsoft Entra ID workforce tenants worldwide starting February 1, 2027, to enhance security. Organizations must identify affected users, migrate them to phishing-resistant methods like passkeys, and update policies to avoid sign-in disruptions and comply with new requirements.
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(Updated) Retirement Notice of Learning Coach Agent in M365 Copilot
MC1454391 | September 17 – The Learning Coach Agent in Microsoft 365 Copilot will transition to Learning Agent starting October 2026 and retire by late December 2026. Users must switch to Learning Agent before then. The agent will be removed from user access and admin management by early 2027. Communication and updates are recommended.
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Loading Power Query data to Python in Excel Web: Retirement
MC1473149 | September 16 – Microsoft will retire support for loading Power Query data into Python in Excel for the web on October 16, 2026. This affects users combining Power Query and Python in Excel for the web but not Excel desktop. No admin action is needed; affected users should be notified and workflows reviewed.
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(Updated) Microsoft Entra: Passkeys by default and retirement of Microsoft-provided SMS and voice authentication
MC1426371 | September 15 – Passkeys became the default Microsoft Entra authentication on September 1, 2026. Microsoft-provided SMS and voice authentication will retire February 1, 2027, requiring customers to use telecom providers from the Microsoft Security Store. Transition to passkeys is recommended for stronger, phishing-resistant security.
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Manage who can upload advanced agents and plugins
MC1472007 | September 15 – Starting September 25, Microsoft 365 admins can control who uploads advanced Copilot agents and plugins, limiting access to specific users or Entra ID groups. This governance feature rolls out worldwide by October 2026, with default uploads enabled unless admins configure restrictions by October 25. Basic uploads remain unaffected.
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Support for Office LTSC 2021, and additional apps will end on October 13, 2026
MC1472429 | September 15 – Support for Office LTSC 2021 and related apps ends October 13, 2026, with no further updates or support. Users should upgrade to Microsoft 365 Apps or Office LTSC 2024 to maintain security, compliance, and performance before that date.
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Take Action: Out-of-band update released to address issues from the September 2026 Windows security update
MC1471876 | September 14 – Microsoft has identified issues that affect some devices after installing the September 2026 Windows security update, released September 8, 2026. On affected devices, host folder shares might be unavailable in Hyper-V-based Linux virtual…
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Browser Use Admin Control for Copilot Cowork
MC1474461 | September 19 – Admins can now control browser use in Copilot Cowork via Microsoft 365 admin center, enabling access for specific users or groups. Rolling out worldwide mid to late September 2026, this feature is off by default and requires admin activation. Recommended to pilot with small groups before broader deployment.
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Microsoft Copilot (Microsoft 365): Power BI reports as references in Copilot Notebooks
MC1474458 | September 19 – Copilot Notebooks now support adding Power BI reports as references, enhancing summaries with real business data. Public preview starts late September 2026; general availability begins late October 2026. No extra setup is needed if Power BI and Copilot are already enabled. Organizations without Power BI see no change.
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In-app browsing in Copilot app
MC1474455 | September 19 – Microsoft Copilot app now supports in-app browsing on Windows and Mac, allowing users to open websites side-by-side with chat. Available via admin opt-in now, with broader rollout in late November 2026. Users can manage tabs, toggle full-screen, or open links externally. Data is stored locally, similar to Edge.
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Updates available for Microsoft 365 Apps for Current Channel
MC1474415 | September 19 – We’ve released updates to the following update channel for Microsoft 365 Apps: Current Channel
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(Updated) OneDrive for Business: Improved Windows Desktop sync error messages for max path length
MC1422063 | September 18 – OneDrive for Business on Windows will improve sync error messages for paths exceeding 520 characters, guiding users to rename or move files without stopping sync. This update, rolling out October 2026, reduces confusion and support tickets with clearer, actionable guidance and no admin action needed.
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(Updated) Microsoft Purview DLP: Unmanaged cloud app protection with Microsoft Purview and the Island Enterprise Browser
MC1249424 | September 18 – Microsoft Purview now integrates with the Island Enterprise Browser to extend data loss prevention and network data security to browser-based workflows. Available from late March 2026 (preview) and June 2027 (general availability), admins must enable this feature to inspect and protect data shared via Island-managed browsers using existing Purview policies.
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(Updated) Microsoft Teams: New centralized experience for organizing important resources in chats and channels
MC1473153 | September 18 – Microsoft Teams is introducing a centralized resource management experience in chats and channels, allowing users to pin and organize resources below headers and access them on mobile. The “In this chat” and “In this channel” panes will be removed. Rollout begins late September 2026; no admin action required.
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(Updated) Microsoft Purview | Endpoint Data Loss Prevention now supports a pre‑curated file extension list
MC1384415 | September 18 – Microsoft Purview Endpoint DLP now uses a pre-curated list of supported, scannable file extensions for policy configuration, improving accuracy and enforcement consistency. Free-form file extension entry is removed. Rollout starts mid-December 2026. Existing policies remain unchanged unless edited, requiring unsupported extensions to be removed.
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(Updated) Microsoft Exchange Online: Review and configure EWSAllowedAppIDs before Exchange Web Services access changes
MC1469960 | September 18 – Microsoft is updating how EWSAllowedAppIDs is applied in Exchange Online as part of EWS retirement starting October 1, 2026. Organizations using EWS must review and configure their EWSAllowedAppIDs list to avoid service disruption. Microsoft may generate a list if none exists but won’t overwrite tenant-configured lists.
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Microsoft Copilot: SpaceXAI subprocessor admin setting
MC1474124 | September 18 – SpaceXAI is added as a Microsoft Copilot subprocessor, enabling Grok models in Word, Excel, and PowerPoint for eligible Frontier customers starting September 18, 2026. The SpaceXAI admin setting is disabled by default and must be enabled by admins. Availability excludes EU, EFTA, UK, and government clouds.
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Microsoft Planner: Capacity view
MC1474110 | September 18 – Capacity view in Microsoft Planner, launching October 2026, shows a live staffing timeline from existing task data for Plan 3 users on web/desktop (Teams, Outlook). It helps spot workload distribution without extra reports. No admin action needed; keep task details updated for accuracy.
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Microsoft Purview: Archive file classification behavior change for Endpoint Data Loss Prevention on Windows endpoints
MC1474107 | September 18 – Microsoft Purview Endpoint DLP on Windows will classify archive files (.zip, .rar) as single atomic objects, reporting only the outer archive in events. This change, rolling out from September to November 2026, improves consistency and performance without requiring user or admin action.
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Microsoft Defender for Office 365: New MessageContents table in Advanced Hunting for Microsoft Teams messages
MC1474106 | September 18 – Microsoft Defender for Office 365 introduces a new MessageContents table in Advanced Hunting for Teams messages, enabling authorized security analysts to query message snippets and metadata for threat investigations. It rolls out worldwide from late September to mid-October 2026, requiring appropriate permissions for access.
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(Updated) Microsoft 365 Copilot app: Branded footer customization
MC1238432 | September 17 – Starting August 2026, Microsoft 365 Copilot app admins can add a branded footer with their organization’s logo and a label (Approved by, Provided by, Managed by, or none) via the Microsoft 365 admin center. This feature is off by default and affects all users once enabled.
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Microsoft Edge: IE mode is supported through at least the end of 2029, plan your migration
MC1473151 | September 17 – IE mode in Microsoft Edge is supported through at least the end of 2029. Organizations using it should inventory dependencies, assess modernization options, and plan migrations early to avoid disruption. No immediate action is required if IE mode is not used. Microsoft offers free App Assure support for compatibility issues.
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Dynamics 365 Project Operations – Improve NTE reliability and validation coverage
MC1473656 | September 17 – We are announcing the ability to improve Not-To-Exceed (NTE) reliability and validation coverage in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? This feature provides consistent control over NTE limits across every billable type, so users avoid over-billing, and protect revenue. The core capabilities of this feature include: Extends NTE validation beyond time entries to include…
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Intune: Windows Health Attestation Migration to Microsoft Azure Attestation
MC1473600 | September 17 – What and why:Microsoft Intune will migrate Windows Health Attestation compliance evaluation from the current Device Health Attestation (DHA) service to Microsoft Azure Attestation (MAA). This is an Intune service-side change that will happen automatically.Rollout schedule:We are targeting this migration at the end of Q1 in 2027.Impact on your…
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Power Pages – Power Pages version 9.8.9.15 Pre-Production Release
MC1473557 | September 17 – Maintenance window start: October 3, 2026, at 6:00 PM UTC Maintenance window end: October 4, 2026, at 3:00 AM UTC This is the pre-production deployment of Power Pages version 9.8.9.15 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: Archive SharePoint files under retention policies
MC1472601 | September 17 – Microsoft Purview Data Lifecycle Management will enable admins to archive inactive SharePoint files under retention policies, moving them to Microsoft 365 Archive to reduce storage costs while maintaining compliance. Archived content is excluded from Copilot indexing. This feature rolls out from October to November 2026 and requires admin configuration.
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(Updated) Microsoft Edge: Security Update Alerts in the Edge management service
MC1458480 | September 17 – Microsoft Edge management service will allow admins to set severity thresholds for security update alerts, including zero-day fixes, to reduce unnecessary notifications. The feature rolls out worldwide from mid-October to end of October 2026 automatically, with no admin action required.
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(Updated) Microsoft Copilot Analytics: Data export public preview for Copilot metrics in the Copilot dashboard
MC1173208 | September 17 – Microsoft is introducing a default-on public preview in October 2026 for exporting de-identified, user-level Copilot usage data from the Copilot Dashboard for users with full company-level access. This supports adoption analysis, licensing optimization, and AI strategy, requiring at least 50 Copilot licenses.
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Power Pages – Power Pages version 9.8.9.15 Early Upgrade Release
MC1473393 | September 17 – Maintenance window start: September 19, 2026, at 6:00 PM UTC Maintenance window end: September 20, 2026, at 3:00 AM UTC This is the early upgrade deployment of Power Pages version 9.8.9.15 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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Copilot Studio – Billing for GitHub Copilot harness built agents begins September 1, 2026
MC1461678 | September 17 – Update: The rollout of the usage-based billing model completed on September 15, 2026. Admins will begin to see usage-based billing changes in your environment(s) following this date. Beginning September 1, 2026, the grace period for existing agents and workflows built using the GitHub Copilot harness in Copilot Studio will end. These agents and workflows will begin consuming Copilot Credits under the usage-based billing model.This applies to GitHub Copilot harness agents…
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Dynamics 365 Commerce – Print receipts using Adyen payment terminal printers
MC1473299 | September 17 – We are announcing the ability to print receipts using the built-in printer on supported Adyen payment terminals in Dynamics 365 Commerce. This feature will reach public preview on October 2, 2026.How does this affect me?This feature enables organizations to design and manage receipt formats in Commerce headquarters and print them directly from an Adyen payment terminal, without requiring a separate receipt printer.When this feature is enabled, administrators can…
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Brand Skill support now available in PPT Copilot [Desktop]
MC1473166 | September 16 – Brand managers can now upload custom presentation skills as Markdown files to Brand Kit for use with Copilot in PowerPoint Desktop, enabling consistent, organization-approved presentation guidance. Rollout begins mid-September 2026. Organizations should manage governance, review skills regularly, and ensure compliance with policies.
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Brand Skill support now available in PPT Copilot [Web]
MC1473165 | September 16 – Brand managers can upload custom presentation skills as Markdown files to Brand Kit for use with Copilot in PowerPoint Web, enabling consistent, reusable guidance for presentations. Rolling out worldwide in September 2026, this requires governance, testing, and communication within organizations. Compliance and licensing must be reviewed.
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Brand Skill support now available in PPT Copilot [Mac]
MC1473163 | September 16 – Brand Skill support in PowerPoint Copilot for Mac lets brand managers upload and share custom presentation skills as Markdown files via Brand Kit, guiding consistent presentation creation. Rolling out September 2026, it requires governance, testing, and compliance checks before publishing for organizational use.
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Microsoft Purview: permissions audit log improvements
MC1473155 | September 16 – Microsoft Purview will enhance audit logging for RBAC permission checks starting late September 2026, adding two new audit operations for better access investigation and troubleshooting. This feature is enabled by default, requires no action, and improves administrators’ visibility into role-based access decisions without impacting existing systems.
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Microsoft 365 Usage Reporting Updates (Microsoft Browser and Visio)
MC1473148 | September 16 – Microsoft is updating Microsoft Browser and Visio usage reports on September 21, 2026, improving metric accuracy and including more apps. Active-user counts may rise, but historical data won’t change. Administrators should review reports, note the baseline change date, and validate API integrations.
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(Updated) Viva Engage: Email updates for frontline users without an active Exchange mailbox
MC1309743 | September 16 – Starting end of September 2026, Viva Engage will stop sending email notifications to users without valid mailboxes, reducing email system load and improving delivery. Users with supported mailboxes or Teams notifications remain unaffected. No action is required, but admins should review mailbox configurations and update support resources accordingly.
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Microsoft 365 Copilot in PowerPoint: Guide Presentation Creation with Notes Steering and Strict Brand Adherence
MC1470415 | September 16 – Microsoft 365 Copilot in PowerPoint introduces Strict Brand Adherence and Notes Steering settings, enabling Brand Managers to ensure presentations strictly follow approved templates and embed guidance in speaker notes. These features enhance brand consistency, reduce manual edits, and require no user action but need Brand Manager configuration.
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(Updated) Microsoft 365: Enrich profile cards with custom properties from third-party systems
MC1193692 | September 16 – Starting October 2026, Microsoft 365 admins can add up to 10 custom properties from external systems to profile cards via Microsoft Graph People connectors. This feature is off by default and configurable in the admin center, enhancing user profiles for better collaboration and discoverability.
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Dynamics 365 Project Operations – Speed up time phasing of estimates
MC1472799 | September 16 – We are announcing the ability to use the improved Time Phasing of Estimates experience in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? This update enhances the Time Phasing of Estimates experience by delivering significant performance improvements across loading, recalculation, and user interactions. You can now work more efficiently with large estimates, complex distributions, and multiline quotes…
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Dynamics 365 Project Operations – Set a default booking method for the schedule board
MC1472792 | September 16 – We are announcing the ability to set a default booking method for the Schedule Board and Schedule Assistant in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? When this feature is enabled, administrators can configure a default booking method in the Schedule Board settings. The selected default booking method is automatically applied to bookings created through the Schedule Board or Schedule Assistant,…
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Dynamics 365 Project Operations – Perform bulk reconciliation of bookings from UI
MC1472784 | September 16 – We are announcing the ability to reconcile multiple resources and date ranges in a single action in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? When this feature is enabled, users can select multiple time durations and resources on the Resource Reconciliation grid. This feature allows users to: Select multiple time durations on the grid. Select multiple users on the grid….
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Dynamics 365 Project Operations – View partial cancellation of bookings from schedule board
MC1472778 | September 16 – We are announcing the ability to view partial cancellation of resource bookings from the schedule board, without needing to delete and recreate them in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? This partial booking modification feature provides resource managers with reduced manual effort, improved scheduling accuracy, preserved audit history, and unlocked partially available capacity by letting…
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Dynamics 365 Project Operations – Improve the project quote experience
MC1472751 | September 16 – We are announcing the ability to use the improved project quote experience in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? The improvements to project quote provide usability enhancements designed for users to work more efficiently when creating and managing quotes. The updated interface features an optimized layout and improved use of screen space to provide a cleaner, more efficient workspace…
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Microsoft 365: Find more actions in the suite header menu
MC1472598 | September 15 – Microsoft 365 is moving some suite header actions, including Settings, My Day, and Sync, into the More (…) menu to reduce clutter and improve discoverability. The change, rolling out from September to November 2026, requires no admin action but may need user communication and documentation updates.
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Microsoft Purview: Auto-expanding archive capacity increases to 3 TB for eligible mailboxes
MC1472592 | September 15 – 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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Enhanced security and access controls for Outlook attachments
MC1472591 | September 15 – Outlook attachments now have enhanced security with a separate application configuration enforcing existing Conditional Access policies from Exchange and Office apps. Non-compliant users are blocked from attachment actions. No new policies are needed. Continuous Access Evaluation and user sign-in prompts will be added later. Review policies and update support documentation.
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Microsoft Copilot Studio – Custom Grader Library
MC1472547 | September 15 – We are announcing the ability to create custom graders once and reuse them across multiple evaluations using Custom Grader Library in Microsoft Copilot Studio. This feature will be available in public preview on September 15, 2026. How does this affect me? Users will be able to create custom graders once and reuse them across multiple evaluations. Custom graders will become reusable evaluation assets, making reuse explicit and helping reduce duplicate grading logic. This…
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(Updated) Simplified Copilot experience in Microsoft Outlook
MC1458470 | September 15 – Microsoft Outlook’s Copilot experience will be refreshed by September 2026 with a simplified, chat-centered design in both full-page and side pane views. Enhancements include improved navigation, chat layout, agent interaction, and Work IQ controls. No user or admin action is needed; administrators should update related documentation and inform users.
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(Updated) Simplified Copilot experience in Microsoft Teams
MC1458472 | September 15 – Microsoft Teams’ Copilot experience is updated with a simplified, chat-centered design available in full-page and side pane views starting September 2026. Enhancements include easier navigation, improved chat layout, Work IQ controls, and a new Tasks view in full-screen mode. No user or admin action is needed.
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[Whiteboard] Legacy Whiteboard migration to OneDrive
MC1469957 | September 15 – Updated September 15, 2026: This message does not apply to Government customers. We apologize for the confusion, and you can safely disregard this message. Microsoft Whiteboard is migrating from legacy Azure-based storage to OneDrive-backed storage. Migration must be completed by September 25, 2026; afterward, legacy Whiteboards become read-only and are deleted by October 16, 2026. Admins should inventory, notify users, and ensure migration before these deadlines.
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Power Platform – Multi-Grader Comparison
MC1472451 | September 15 – We are announcing the Multi-Grader Comparison feature in Power Platform. This feature will reach public preview on September 15, 2026. How does this affect me? This feature enables makers to compare the results of multiple graders applied to the same evaluation. Key functionality of this feature includes: Side-by-side grader comparison Score comparison Review of explanations from each grader Analysis of grading…
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60-Day Reminder: Windows 11, version 23H2 Enterprise and Education editions reach end of updates on November 10, 2026
MC1472443 | September 15 – On November 10, 2026, Windows 11, version 23H2 Enterprise and Education editions will reach end of updates. The November 2026 Windows security update will be the last update available for these editions. After this date, devices running these editions will no longer receive monthly security and non-security preview updates containing protections from…
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Sales in Microsoft 365 Copilot – Enrich Sales agent meeting prep with more data sources
MC1472439 | September 15 – We are announcing the ability to enrich Sales agent meeting prep with more data sources in Sales in Microsoft 365 Copilot. This feature will reach public preview on September 30, 2026.How does this affect me?With this feature, meeting prep in Sales agent now supports additional data sources. You can configure which data sources contribute to meeting prep insights through the Sales agent admin experience. This configuration lets your organization decide exactly what context…
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Dynamics 365 Project Operations – View budget details from the project’s left navigation (Preview)
MC1472438 | September 15 – We are announcing the ability to access budget details directly from the left navigation pane with the new Project Budget management experience in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026.How does this affect me?This feature enhances the Project Budget management experience by providing:Improved budget visibility: View budget information in a dedicated experience that makes key budget details easier to access…
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(Updated) Microsoft Teams: Multilingual meeting recaps support personalized recap translation
MC1446799 | September 15 – Microsoft Teams meeting recaps will now personalize recap translations based on each participant’s selected language during the meeting. Users can view recaps initially in their chosen language and switch to other supported languages. The rollout begins August 2026 with no admin action required.
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Dynamics 365 Project Operations – Support subscription billing for Project Operations
MC1472430 | September 15 – We are announcing support for subscription billing for Project Operations in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026.How does this affect me?This feature automates recurring invoicing to reduce manual intervention. It improves financial control, supports flexibility, and positions businesses to scale subscription offerings and forecast monthly recurring revenue (MRR) more accurately.Core capabilities of this…
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(Updated) Microsoft Teams: External presenters can manage event production controls
MC1443517 | September 15 – Microsoft Teams will allow event organizers to grant production control to trusted external presenters, including federated (B2B) and guest users, enabling them to manage event production. This feature rolls out from early August to early October 2026, requiring no admin action but recommends updating policies and training.
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(Updated) Microsoft Teams: Add multiple steps when building a workflow from scratch
MC1461153 | September 15 – Microsoft Teams Workflows will soon support multiple actions in a single workflow, enabling richer automations that reduce manual tasks, consolidate processes, and improve productivity. The rollout starts early September 2026, requiring no admin action, and offers a simpler, step-based workflow design for users.
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Dynamics 365 Project Operations- Improve contract management usability
MC1472428 | September 15 – We are announcing improvements to contract management usability in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026.How does this affect me?This update transforms the contract into a central, intuitive workspace where all contract-related information is easier to access, understand, and act upon. The redesigned layout provides a clearer overview of contract status, financials, and performance, helping users work faster and with…
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(Updated) Microsoft Teams Rooms on Windows: Native PTZ controls
MC856756 | September 15 – Microsoft Teams Rooms on Windows will support native PTZ camera controls in the Camera settings menu when Enhanced Framing is off. Rollout begins late September 2026 worldwide, with admin toggle enabled by default. No pre-rollout action is needed, but user notification and documentation updates are recommended.
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(Updated) Microsoft SharePoint : Dashboard Card Visibility on Mobile
MC1462471 | September 15 – Microsoft SharePoint now allows dashboard authors to control individual card visibility on mobile devices, enhancing mobile user experience. The rollout begins mid-September 2026 and completes by month-end. No action is required, but authors are encouraged to optimize dashboards for mobile users. Existing settings remain unchanged.
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(Updated) Microsoft Viva Copilot Analytics: Daily Copilot usage snapshot with fresh data
MC1314949 | September 15 – Microsoft Viva Insights now offers a daily updated Power BI report, “Microsoft 365 Copilot latest usage snapshot,” showing up to three months of Copilot usage for analysts with the Insights Analyst role. It requires at least 50 Copilot licenses, supports advanced filtering, and rolled out globally by early September 2026.
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Dynamics 365 Project Operations – Enable on-account category in Dataverse
MC1472252 | September 15 – 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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Dynamics 365 Project Operations – Enable multiple baselines for a project
MC1472247 | September 15 – We are announcing the ability to enable multiple baselines for a project in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? Multiple baselines provide a clear historical view of how a user’s project plan evolves over time without losing earlier snapshots. This allows users to track changes in scope, schedule, cost, and effort across different stages of the project and understand the impact of each…
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Dynamics 365 Project Operations – Enable Change Order Management
MC1472214 | September 15 – We are announcing the ability to enable structured creation, review, and approval of contract updates in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026.How does this affect me?This feature introduces a structured, auditable process for creating, evaluating, and approving change orders on active project contracts. It allows users to capture updates to scope, pricing, resources, or timelines and apply those approved changes…
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Dynamics 365 Project Operations – Define the accounting date at invoice level
MC1472205 | September 15 – We are announcing the ability to define the accounting date at the invoice level in Dynamics 365 Project Operations. This feature will reach public preview on September 30, 2026. How does this affect me? With this feature, users can set the accounting date on an invoice separately from the transaction and document dates, so the billed revenue posts to the right financial period. This keeps Project Operations and Finance and operations apps in sync, with the same accounting…
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Power Automate – Create and manage custom dashboard tiles
MC1472191 | September 15 – 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 Center, users can gain faster insights, improve operational visibility, and make more informed…
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Dataverse – Assign non-Power Platform licensed Entra users to Dataverse Activities
MC1472179 | September 15 – We are announcing the ability to assign non-Power Platform licensed Entra users to Dataverse Activities in Dataverse. This feature will reach public preview on September 30, 2026.How does this affect me?This feature allows non-licensed users to be assigned to Dataverse activities. These non-licensed users are created at run-time as stub users and can then be assigned to the activities.What action do I need to take?This message is for awareness, and no…
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Dynamics 365 Contact Center – Manage overnight shifts as a single continuous schedule
MC1472159 | September 15 – We are announcing the ability to manage overnight shifts as a single continuous schedule in Dynamics 365 Contact Center. This feature will reach general availability on October 2, 2026.How does this affect me?With this feature, supervisors can now create and manage overnight shifts that span across midnight while maintaining a single continuous shift experience. Activities, breaks, meals, and ad-hoc work can be scheduled anywhere within the overnight shift and remain part of…
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Microsoft 365 Copilot: Insights Copilot Analytics cowork adoption impact
MC1472032 | September 14 – Microsoft 365 Copilot now includes Cowork adoption and impact insights in the Consumption dashboard and Viva Insights Advanced Insights. Available worldwide, these insights help leaders, managers, and analysts track usage, work outcomes, and optimize investments. Enabled by default for eligible roles with no immediate action required.
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Writing Blocks in M365 Copilot
MC1472030 | September 14 – Microsoft 365 Copilot will introduce Writing blocks by mid-September 2026, enabling users to create and refine longer-form content like emails and reports within Copilot. This feature enhances productivity by providing a dedicated editing workspace without leaving Copilot. No action is required, but user communication is recommended.
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Code Blocks in M365 Copilot
MC1472029 | September 14 – Microsoft 365 Copilot will support inline previews of code blocks, charts, and diagrams within conversations, eliminating the need for a separate code canvas. This rollout begins mid-September 2026 worldwide, enhancing user experience without requiring action, though user notification and training updates are recommended.
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Outlook: Change the organizer of meetings
MC1472028 | September 14 – Microsoft is introducing a feature to change the organizer of eligible Outlook meetings, allowing transfer of meeting ownership within an organization. Phase 1 (late 2026) supports non-online meetings; later phases will add online and Teams meetings. The new organizer must accept the transfer, preserving meeting content and attendee settings.
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Microsoft SharePoint: PowerShell support for brand fonts deletion
MC1472025 | September 14 – Microsoft SharePoint will introduce the Remove-SPOFontFile PowerShell cmdlet by mid-October 2026, allowing admins to delete brand fonts across geographies. Deleted fonts fallback to Microsoft-defined fonts on sites, while font packages remain with warnings. This requires Public CDN enabled and PowerShell module updates.
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[Outlook Mobile] Purview Data Loss Prevention support for Calendar Events
MC1472023 | September 14 – Outlook for iOS and Android will support Microsoft Purview Data Loss Prevention for calendar events, helping prevent sensitive data sharing in meeting details. Rolling out worldwide in late September 2026, this feature requires no admin action and extends existing DLP policies to calendar content for improved compliance.
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[Outlook Mac] Purview Data Loss Prevention support for Calendar Events
MC1472022 | September 14 – Outlook for Mac will support Microsoft Purview Data Loss Prevention for calendar events, detecting sensitive info in meeting details to prevent data leaks. Rolling out in late September 2026, it requires no admin action and extends existing DLP policies to calendar content for improved compliance.
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[Outlook Mobile] Purview DLP Wait-on-Send Support
MC1472021 | September 14 – Outlook for iOS and Android will support Microsoft Purview DLP wait-on-send policies, allowing organizations to require and configure a wait time for DLP evaluation before sending emails. This enhances sensitive data protection and policy enforcement, with rollout starting and completing in late September 2026.
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[Outlook Mac] Purview DLP Wait-on-Send Support
MC1472019 | September 14 – Outlook for Mac will support Microsoft Purview DLP wait-on-send policies, requiring email evaluation before sending to protect sensitive data. Rolling out in late September 2026, this feature lets administrators set wait times for policy checks, enhancing compliance and security while balancing user productivity.
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(Updated) Microsoft Edge: Upgraded Copilot new tab page
MC1440972 | September 14 – Microsoft Edge’s upgraded Copilot new tab page integrates Microsoft 365 Copilot chat, web search, and work content into one experience with enhanced chat, compose features, suggested actions, and work cards. Rollout begins late September 2026, enabled via admin policy, requiring a Microsoft 365 Copilot license.
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(Updated) Microsoft Purview | Endpoint Data Loss Prevention: Scope Just-in-time audit by user or group
MC1387575 | September 14 – Microsoft Purview Endpoint Data Loss Prevention now requires admins to explicitly configure which users or groups are audited under Just-in-time protection, enhancing control and reducing audit noise. Rollout begins mid-December 2026. Admins must update configurations and deploy anti-malware client version 4.18.26060 or later.
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Microsoft Purview | Endpoint Data Loss Prevention – Ability to protect files stored in the excluded folders in Windows
MC1384420 | September 14 – Microsoft Purview Endpoint DLP will protect sensitive files in previously excluded Windows folders (e.g., AppData) during key egress actions starting mid-December 2026. Admins must update policies, deploy anti-malware client 4.18.26051+, and educate users. Audit mode logs actions; block mode enforces restrictions.
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30-Day Reminder: Windows 11, version 24H2 and Windows 10 LTSB 2016 reaching end of updates on October 13, 2026
MC1471964 | September 14 – On October 13, 2026, Windows 11, version 24H2 Home and Pro editions, and Windows 10 Enterprise LTSB 2016 will reach end of updates. After this date, devices running these editions will no longer receive monthly security and non-security…
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30-Day Reminder: AD FS DKM container ACL hardening begins in October 2026
MC1471963 | September 14 – What and whyIn October 2026, Windows updates will begin Enforcement mode for AD FS Distributed Key Manager (DKM) container ACL hardening. This hardening change is designed to address the elevation of privilege vulnerability documented in CVE-2026-56155 by automatically remediating insecure DKM container ACL configurations on supported Windows Server…
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(Updated) Microsoft Entra ID: Passkey support for B2B users
MC1459133 | September 14 – Microsoft Entra ID will support passkey registration and sign-in for B2B users, enabling phishing-resistant MFA using resource tenant passkeys. Rollout begins October 2026, with automatic enablement for eligible users. Administrators should review authentication policies and configurations; no immediate action is required.
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Microsoft Entra: Users can register a passkey or passwordless sign-in as their first multifactor authentication method
MC1450133 | September 14 – Users can now register passkeys or passwordless sign-in as their first multifactor authentication method in Microsoft Entra, eliminating the need to set up weaker methods first. This change, rolling out in phases from October 2026 to February 2027, aims to increase adoption of phishing-resistant sign-in.
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Power Platform admin center – Ask advisor
MC1471895 | September 14 – We are announcing the Ask advisor feature in Power Platform admin center (PPAC). This feature will reach public preview on September 10, 2026. How does this affect me? This feature is an AI assistant that answers natural-language questions about a user’s tenant. Instead of moving between admin center pages to assemble inventory, usage, and governance details, an administrator can ask a question such as “Which apps haven’t been used in the last 30 days?” and Ask advisor gathers…
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An updated version of the September 2026 Scan Cab is available
MC1471885 | September 14 – IMPORTANT: This notice is only relevant for environments where:Windows 11, version 26H1, 25H2, or 24H2 is deployedScan Cab is used to check for update complianceThe September 2026 Scan Cab was deployed before 10:00 AM PDT on September 14, 2026What and why:An updated version of the September 2026 Scan Cab was made available at 10:00 AM PDT on September 14, 2026. This Scan Cab…
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(Updated) Microsoft Outlook for iOS/Android: Improved Contacts with profile enrichment and duplicate management
MC1093912 | September 14 – Microsoft Outlook Mobile (iOS/Android) will unify duplicate contacts and enrich profiles with organizational info, improving contact views. Rollout starts mid-July 2025 and completes by mid-November 2026, with no admin action needed. Users should update to the latest app version after rollout.
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(Updated) Notebooks in the M365 Copilot App
MC1420901 | September 14 – Microsoft 365 Copilot app will introduce updated Notebooks by late September 2026, syncing with OneNote to organize chats, content, and references in a persistent workspace. Users with a Copilot license can access and continue work across both apps without changes to existing data or OneNote Notebooks. No admin action required.
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(Updated) Create charts on pages with AI in SharePoint
MC1282567 | September 14 – SharePoint will introduce an AI-assisted Charts web part by mid-2026, enabling page authors with a Microsoft 365 Copilot license to create and edit interactive charts using plain-language prompts. The feature is enabled by default, requires no action to prepare, and maintains existing permissions and policies.
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Copilot Studio – Use MCP-compliant tools in agent workflows
MC1471573 | September 14 – We are announcing the ability to use MCP (model context protocol) – compliant tools in agent workflows in Microsoft Copilot Studio. This feature reached general availability on July 15, 2026.How does this affect me?How does this affect me? This feature allows users to integrate proprietary systems, dynamic knowledge sources, and custom actions into agentic workflows with MCP support. Agent workflows can pass structured inputs to MCP-compliant tools and consume structured…
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