MC1214913: Get started with December 2025 improvements in Windows 11
Start using the newest Windows 11 capabilities with helpful tips and actionable
Microsoft 365 Message Center
An archive of Message Center updates - curated and preserved for when Microsoft changes things faster than you can say "rolling out." Find the latest and past Message Center posts right here. Updated daily at 1am (UK time).
MC1214183: Purview Communication Compliance: Temporary delays in processing due to planned infrastructure migration
Microsoft Purview Communication Compliance will undergo infrastructure migration from January 5 to February 28, 2026, causing temporary delays, intermittent errors, and slower updates in policy insights and reports. No data loss will occur. No action is required, but admins should inform teams of...
MC1214118: Dynamics 365 Contact Center - Handle duplicate callback requests gracefully when queues are overflowing
We are announcing the ability to define how duplicate requests for callback
MC1214103: Dynamics 365 Contact Center - Monitor real-time conversations with Quality Evaluation Agent
We are announcing the ability to monitor real-time conversations with Quality Evaluation
MC1213784: Retirement of the Sway Windows Desktop App on June 1, 2026
The Sway Windows desktop app will be retired on June 1, 2026. Users should transition to the web version at sway.cloud.microsoft, which retains all features and content. Admins should update documentation and inform helpdesk staff; no admin changes or compliance issues are expected.
MC1213781: Plan for Change: New Managed Home Screen RBAC permissions added to School Admin and Help Desk Operator built-in roles
Intune's February release adds two new Managed Home Screen RBAC permissions—TemporarilySuspendManagedHomeScreen and RestoreManagedHomeScreen—to the School Administrator and Help Desk Operator roles, enhancing Android device management. No admin action is needed, but reviewing role assignments and...
MC1213779: Introducing new tool to migrate content from Slack to Microsoft Teams
A new Slack to Microsoft Teams migration tool will roll out from December 2025 to March 2026, allowing admins to migrate Slack channel content into Teams channels via the Microsoft admin center. It requires no opt-in, supports channel content initially, and needs no pre-rollout action.
MC1213770: Microsoft Purview | Data lifecycle Management cmdlet connectivity change
Starting January 31, 2026, admins must use Exchange Online PowerShell v3.9.0+ and include the -EnableSearchOnlySession parameter with Connect-IPPSession to run Data Lifecycle Management cmdlets. This change enhances security and affects specific retention compliance cmdlets, with no impact on Pur...
MC1213769: Planned Maintenance: Windows 365 Service
Microsoft will perform a 2-hour planned maintenance on January 10, 2026, from 6:00 AM to 8:00 AM UTC for the Windows 365 alerting service in the EU. During this time, admins cannot create or edit alert rules, and new alerts may be delayed, but existing alerts remain visible.
MC1213768: Copilot Notebooks deletion issues and upcoming fix
Starting January 9, 2026, deletion of Copilot Notebooks in SharePoint Embedded may fail until a fix fully rolls out by January 31. Tenant-owned Loop workspace containers may also face issues unless excluded from retention policies. Admins should adjust retention settings via Microsoft Purview to ...
MC1213470: Dynamics 365 Apps – Audit data for entity routing configurations and entities
We are announcing the ability to audit data for entities and entity
MC1208690: Microsoft 365 Copilot: Video Overviews in Copilot Notebook
Microsoft 365 Copilot introduces Video Overviews in Copilot Notebooks, allowing users with a valid license to generate short, narrated video summaries of Notebook content. The feature, enabled by default, began rolling out mid-November 2025 and will complete by late February 2026, requiring no ad...