Now that support for Windows 10 has officially ended, it is important that organizations with Windows 10 devices stay as protected as possible through the Windows 10 Extended Security Updates (ESU) program. A new guide for Windows 10 ESU customers is now available, offering details on how to find, activate, and verify licenses on devices and endpoints. When will this happen:Windows 10 reached end of support on October 14, 2025. To continue receiving monthly security updates, Windows 10 devices need to be activated with Windows 10 Extended Security Updates (ESU) licenses before the November 2025 Windows security update. What you need to do to prepare:Follow the steps in the new guide to locate MAK keys, activate ESU licenses on each applicable device, prepare devices used by people with Windows 365 Cloud PC and Azure Virtual Desktop licenses, and verify enrollment. Additional information:
Microsoft Defender Application Guard for Office was retired in April 2024 and is now being removed from Office. This change aligns with the end of support for Windows 11 version 23H2 and helps streamline the security experience for users. Documents that previously opened in Application Guard will now open in Protected View, maintaining strong protection against threats. When this will happen: Phase 1: Removal begins with Office version 2602 Current Channel: early February 2026 Monthly Enterprise Channel: April 2026 Semi-Annual Enterprise Channel: July 2026 Phase 2: Full removal with Office version 2612 Current Channel: early December 2026 Monthly Enterprise Channel: February 2027 Semi-Annual Enterprise Channel: July 2027 How this affects your organization:Who is affected: All Win32 users who previously used Microsoft Defender Application Guard for Office. What will happen: Files that pre
Start using the newest Windows 11 capabilities with helpful tips and actionable steps summarized in one place. Discover news about Microsoft Ignite 2025, update and driver management, Windows 11 productivity features, Microsoft Intune, AI capabilities, lifecycle milestones, security, and more. When will this happen: Improvements summarized in this monthly recap are already available. Note that some of them are rolling out gradually. How this will affect your organization: You can start seeing improvements across various workflows in your organization with: Hotpatch updates that help you achieve security and compliance more quickly A new policy to remove select provisioned in-box apps without custom imaging and complex scripts New settings for Windows 11, version 25H2 in the Microsoft Intune Settings Catalog 10 key Microsoft Intune capabilities that will help simplify the upgrade to Windo
SharePoint Online · Microsoft Copilot (Microsoft 365)
Updated October 22, 2025: We have updated the content below. Thank you for your patience. [Introduction] We’re introducing Knowledge Agent, a built-in SharePoint capability that helps organizations prepare content for AI at scale. It unifies fragmented AI features into a single, context-aware interface that adapts to user roles and surfaces intelligent actions directly in the flow of work. This enhancement supports high-quality, trustworthy responses from Microsoft 365 Copilot and custom agents. [When this will happen:] Public Preview (Worldwide): Begins mid-September 2025; completes by late February 2026. [How this affects your organization:] Who is affected: Users with a Microsoft 365 Copilot license on tenants opted into Knowledge Agent preview. Admins managing SharePoint content and agents. What will happen: A floating button will appear in the lower-right corner of SharePoint surfac
In 2018, we announced that we were no longer making feature updates to Exchange Web Services (EWS) in Exchange Online, and we advised developers to move to Microsoft Graph. In September 2023, we announced that on October 1, 2026, we will start blocking EWS requests to Exchange Online. We are now less than 12 months from October 1, 2026. We have made progress on closing several parity gaps with more changes in development to be released in the coming quarters. Please refer to Deprecation of Exchange Web Services in Exchange Online for up-to-date guidance and roadmap information. You are receiving this notification because there are EWS applications in your tenant. If you haven't already, start the process of working with your application development organization and your application vendors to either sunset or migrate active EWS applications on your tenant to the Graph API or Power Platfo
Organizations undergoing rebranding, mergers, acquisitions, divestitures, or tenant consolidations often need their SharePoint domain name in URLs to reflect their new identity. The SharePoint Online Tenant Rename feature enables this change. We are announcing general availability of advanced tenant rename with no site count limitation. With this update, the feature is now accessible to all customers, regardless of the total number of sites in the tenant. When this will happen: General availability begins worldwide on October 16, 2025. Rollout started in early October and is expected to complete by mid-October 2025. How this affects your organization: Who is affected: Admins managing SharePoint Online and OneDrive for Business tenants globally. What will happen: Rename support is now available for all Microsoft 365 tenants, regardless of site count. High reliability is maintained across
Updated October 15, 2025: We have updated the message to show as intended. Thank you for your feedback. In 2018, we announced that we were no longer making feature updates to Exchange Web Services (EWS) in Exchange Online, and we advised developers to move to Microsoft Graph. In September 2023, we announced that on October 1, 2026, we will start blocking EWS requests to Exchange Online. We are now less than 12 months from October 1, 2026. We have made progress on closing several parity gaps with more changes in development to be released in the coming quarters. Please refer to Deprecation of Exchange Web Services in Exchange Online for up-to-date guidance and roadmap information. You are receiving this notification because there are EWS applications in your tenant. If you haven't already, start the process of working with your application development organization and your application ven
Updated September 3, 2025: We have updated the timeline. Thank you for your patience. Coming soon for Microsoft Teams: A new Manage what attendees see feature will help organizers and presenters deliver polished town hall events by simplifying the attendee view and keeping the focus on participants brought on screen. The new feature allows assigned organizers and presenters to preview changes before applying them all at once. This message applies to Teams for Windows desktop, Teams for Mac desktop, and Teams for the web. This message is associated with Microsoft 365 Roadmap ID 487431. [When this will happen:] Targeted Release: We will begin rolling out mid-July 2025 and expect to complete by late July 2025. General Availability (Worldwide): We will begin rolling out late July 2025 and expect to complete by late September 2025. [How this will affect your organization:] Before this rollout