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Summary Microsoft is rolling out stricter Conditional Access policies for Teams Android devices by mid-October 2026, which may cause sign-in issues if resource-specific policies block access. Organizations should review and adjust exclusions in Conditional Access policies and check sign-in logs to resolve problems. Message ID: MC1478962 Service: Microsoft Teams Category: Plan for change Tags: Feature …

Read More about MC1478962 Microsoft Teams Review Conditional Access policies to prevent sign-in issues on Teams Android devices

Summary Microsoft is rolling out migrations for Copilot Studio agents to use Microsoft Entra Agent IDs to improve governance and security capabilities. This change introduces audit logging integration, lifecycle management support, and Conditional Access policy targeting for agent identities. Administrators should review tenant inventories using the Power Platform admin center, plan pilot migrations for eligible …

Read More about MC1478488 Migrate Copilot Studio agents to Microsoft Entra Agent ID

Summary Microsoft will introduce organization skill support for Copilot in PowerPoint for Mac starting in September 2026. This capability lets administrators upload and centrally distribute approved skills across the tenant through the Microsoft 365 admin center. Administrators should review governance procedures and prepare the required schema if they intend to publish organization skills for users. …

Read More about MC1478960 Microsoft 365 Copilot in PowerPoint for Mac Organization skill support

Summary Microsoft introduces organization skill support for Copilot in PowerPoint for Windows allowing administrators to upload and share tenant wide skills starting September 2026. This feature enables centralized governance and consistent user experiences across the service. Administrators should review internal governance processes and prepare to publish approved skills if desired. Administrator impact: Administrators can now …

Read More about MC1478961 Microsoft 365 Copilot in PowerPoint for Windows Organization skill support

Summary Microsoft Defender for Office 365 will enable user reporting for Teams by default in late October 2026 for eligible organisations. This feature allows users to report suspicious messages, calls, and meetings to improve threat detection. Administrators should review their configuration settings in the Microsoft Defender portal before October 25, 2026, to ensure that the …

Read More about MC1478463 Microsoft Defender for Office 365 Teams user reporting enabled by default

Summary Microsoft is including Security Copilot features and agents as part of existing Microsoft 365 E5 and E7 plans without requiring a separate purchase. Tenants receive a monthly allocation of Security Compute Units based on user counts. Administrators should review the newly available agentic capabilities across security portals and monitor usage against the included compute …

Read More about MC1478465 Security Copilot is now included as part of your Microsoft 365 E5/E7 plan

Summary Microsoft Purview Data Loss Prevention now allows administrators to configure a custom destination URL for access restriction links in Microsoft 365 Copilot data access messages. This change enables organizations to redirect users from public documentation to internal compliance guidance when data is restricted. The worldwide rollout begins in late September 2026. Administrators who wish …

Read More about MC1478467 Microsoft Purview | Data Loss Prevention Admin-configurable compliance URL in M365 Copilot data access messages

Microsoft Message 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, Microsoft Configuration Manager provides a better, …

Read More about MC1478819 Windows Deployment Services (WDS) deprecation in the next Windows Server release

Summary Microsoft is expanding cloud update capabilities for monthly enterprise channel devices globally starting in September 2026. Administrators gain the ability to roll back affected client applications to a version from two releases prior while retaining security updates. Devices will remain on the chosen version until you choose to resume standard updates. You should review …

Read More about MC1478946 Microsoft 365 Apps Cloud Update – Extended rollback support for Monthly Enterprise Channel

Summary Microsoft Teams webinars now support breakout rooms for up to one thousand participants across one hundred rooms. This rollout is available now and allows for large scale interactive sessions like training workshops. Administrators should inform webinar organisers about the new limits and update any internal guidance accordingly while no direct administrative action is required …

Read More about MC1478949 Breakout Rooms for Microsoft Teams Webinars now support up to 1,000 participants and 100 rooms