M365 Message Center

Geändert

22.12.2025

Handlung bis

01.08.2026

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Microsoft Defender XDR

Updated December 5, 2025: We have updated the timeline. Thank you for your patience. [Introduction] Microsoft Defender Threat Intelligence (MDTI) is converging with Microsoft Defender and Microsoft Sentinel to deliver integrated threat intelligence capabilities directly within your SecOps environment. This change simplifies access to threat insights, improves detection and response workflows, and aligns with customer feedback for a unified experience. [When this will happen] Full convergence will be completed by August 1, 2026. New capabilities are available now, and as of August 2025, all MDTI data has been published via the free connector, with new Threat Analytics APIs replacing retired MDTI APIs. [How this affects your organization] Who is affected: Organizations using Microsoft Defender Threat Intelligence, Microsoft Defender, or Microsoft Sentinel. What will happen: Threat Intellig

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12.12.2025

Services

Microsoft 365 apps

Updated December 12, 2025: We have updated the timeline. Thank you for your patience. To ensure continued high-quality performance of the Read Aloud, Transcription, and Dictation features in Microsoft 365 Office apps, we’re upgrading the backend service that powers these capabilities. As a result, these features will no longer function on Office clients running versions earlier than 16.0.18827.20202 after September 2026.We are extending the supporting period for customers to prepare and upgrade to the supported version. Here is the updated timeline: General Availability (Worldwide): End of September 2026 (previously end of January) General Availability (GCC, GCC High, DoD): End of November 2026 (previously end of March) How this affects your organization If your organization is using Microsoft 365 Office apps with version numbers lower than 16.0.18827.20202, users will lose access to Rea

Geändert

11.12.2025

Services

Windows

If you are an IT admin with questions about managing and updating Windows, we want to help. Every third Thursday of the month, we host a live chat-based event on the Tech Community called Windows Office Hours. Members of the Windows, Microsoft Intune, Windows Autopilot, Windows Autopatch, and Windows 365 engineering teams will be standing by to answer your questions. We also have experts from FastTrack, the Customer Acceleration Team, and Microsoft public sector teams. Want to attend the December 18 session of Office Hours? Add it to your calendar and select Attend on the event page to let us know you’re coming. There is no video or live meeting component. Simply visit the event page, log in to the Tech Community, and leave your questions in the Comments section. You can also bookmark https://aka.ms/Windows/OfficeHours for upcoming dates (and the ability to add this event to your calenda

Geändert

10.12.2025

Services

Windows

Starting with the January 2026 security update, the AllowOOBEUpdates CSP policy will be available and disabled by default. It shows up as a new setting on the Windows Autopilot Enrollment Status Page (ESP). This policy allows you to install the latest Windows quality updates during the out-of-box experience (OOBE) on eligible devices. Devices must be Microsoft Entra joined or Microsoft Entra hybrid joined and running Windows 11, version 22H2 or later. The original announcement and documentation are updated to reflect this change and to clarify device targeting. When will this happen: January 2026: The AllowOOBEUpdates CSP policy will be available and disabled by default. August 2025: The original announcement introduced this new capability. How this will affect your organization: With Windows Autopilot and Microsoft Intune (or alternative management solutions), you can maintain seamless

Geändert

09.12.2025

Services

Windows

The December 2025 security update is now available for all supported versions of Windows. We recommend that you install these updates promptly. For more information about the contents of this update, see the release notes, which are easily accessible from the Windows 11 update history page. To learn more about the different types of monthly quality updates, see Windows monthly updates explained. Highlights for the Windows 11, version 25H2 update: This security update includes improvements that were a part of update KB5070311 (released December 1, 2025).This update addresses security issues for your Windows operating system. This update addresses an issue where Ask Copilot didn’t activate the Click to Do* window as expected. The window now appears in the foreground when you share data with Copilot.This update addresses an issue where File Explorer briefly flashes white when you navigate b

Geändert

08.12.2025

Services

Windows

You can now deploy, manage, and monitor Secure Boot certificate updates. This method represents an alternative to setting registry keys and using Group Policy. You can use Intune to deploy on all domain-joined Windows clients, opt out of high-confidence buckets, and opt in to Microsoft managing these updates. When will this happen: The following settings are now available in the Intune settings catalog: Configure Microsoft Update Managed Opt-In Configure High-Confidence Opt-Out Enable SecureBoot Certificate Updates How this will affect your organization: As the 2011 Secure Boot certificates will start expiring in June 2026, it is essential that organizations start planning for and updating to 2023 certificates. You can now use Microsoft Intune, in addition to registry keys and Group Policy, to deploy, manage, and monitor this update process. The three new settings are disabled by default