M365 Message Center

Geändert

05.02.2026

Services

Windows

Windows is moving toward a more secure authentication model by phasing out New Technology LAN Manager (NTLM) in favor of stronger, Kerberos‑based alternatives. This transition is taking a three-phased approach, leading toward disabling NTLM by default in upcoming Windows releases. With each phase come new capabilities so that your organization has the tools, visibility, and compatibility support needed. When will this happen: NTLM has been deprecated since June 2024. Today, enhanced auditing is available as part of Phase 1 toward NTLM disablement. In the second half of 2026, new tools will be available to Windows Server 2025 and Windows 11, version 24H2 and later: IAKerb, Local KDC, upgrade to negotiate Kerberos. With the next version of Windows Server and its corresponding client version, NTLM will be disabled by default. Additional support for handling NTLM-only cases will be built in.

Geändert

05.02.2026

Services

Exchange Online

[Introduction] We're updating the timeline and process for the retirement of Exchange Web Services (EWS) in Exchange Online. As previously announced, EWS will be retired in favor of Microsoft Graph, which offers improved security, modern authentication, and broader capability support. A phased disablement begins October 1, 2026, with permanent shutdown starting April 1, 2027. [When this will happen:] Phased EWS disablement begins: October 1, 2026 Full and permanent EWS retirement: April 1, 2027 EWS App AllowList feature availability: Coming soon (before retirement milestones) [How this affects your organization:] Who is affected: Organizations using custom or vendor applications that rely on EWS Workflows involving mail, calendar, or integrations that use EWS This change only impacts Exchange Online; Exchange Server (on-premises) is not affectedWhat will happen: Beginning October 1, 2026

Geändert

04.02.2026

Services

Windows

Catch up on important changes and evolving standards that will help strengthen the security of the Windows ecosystem across client, cloud, and server with Windows news you can use for January 2026. Learn about new tools to help with Secure Boot certificate updates and a new command-line tool for Windows app developers. Explore features and enhancements that will start gradually rolling out in February, which include improvements to Cross-Device Resume, Narrator, Voice Access, MIDI support, and the Settings home page. When will this happen:Some improvements summarized in this monthly recap are already available, while others are rolling out gradually. What you need to do to prepare:Read January’s recap, which includes links to resources to help you start benefiting from the latest improvements. Additional information:To keep up with new capabilities and features as they are announced, fol

Geändert

03.02.2026

Services

Windows

If you’re looking for prescriptive guidance help you confidently configure, manage, and support Windows across your organization, mark your calendars for Microsoft Technical Takeoff 2026. Taking place on the first four Mondays in March, this free event offers technical deep dives, AMAs, and feedback sessions—all supported by live Q&A with the teams behind the features.Sessions will cover the latest Windows 11 security features, Windows 365 business‑continuity improvements, Secure Boot certificate updates, Windows Autopatch reporting, and onboarding experiences that help users get productive faster. You’ll also see deep dives on NTLM removal, hotpatch updates, resiliency, and other real‑world scenarios designed to help you deploy, secure, troubleshoot, and optimize Windows at scale.When will this happen:Sessions will take place from 7:00 AM to 12:00 PM Pacific Time on March 2, 9, 16, and

Geändert

03.02.2026

Handlung bis

29.06.2026

Services

Microsoft Teams

[Introduction]Microsoft is retiring Teams Live Events and the Microsoft Graph APIs used to create them on June 30, 2026. Existing events scheduled before that date will continue to function through February 28, 2027. We encourage customers to migrate to Teams town halls, which offer an enhanced, end-to-end experience for large-scale events. This retirement supports Microsoft’s investment in Teams town halls, which provide an improved experience for digital and hybrid events and include comparable Graph APIs for programmatic creation, management, and integration.[When this will happen]Teams Live Events and associated Microsoft Graph APIs will retire on June 30, 2026.Existing Teams Live Events will continue to function through February 28, 2027.Customers will no longer be able to schedule Teams Live Events past June 30, 2026, beginning February 3, 2026.Customers scheduling through Dynamics

Geändert

02.02.2026

Services

Exchange Online

A Data Privacy message regarding your organization is available within Message Center. The contents of this message can be accessed within Message Center by a Global Administrator or someone designated as a Message Center Privacy Reader.Please sign in to Admin Center to view the details of this message in the M365 Message center.