Microsoft 365 Message Center

Microsoft will retire the Viva Engage themes feature in user settings by mid-November 2025, removing personal theme customization except on mobile apps. This enables future admin-led branding capabilities. No admin action is required, but user notification and documentation updates are recommended.

A new content explorer for Insider Risk Management cases, featuring advanced filtering, grouping, document preview, customizable columns, and time zone selection, will roll out worldwide in public preview from early October to early November 2025. It applies to new cases only, with no changes to ...

Starting late October 2025, Teams Admin Center will show expanded security and compliance data (e.g., SOC 2, ISO 27001, GDPR) for more apps, including those not Microsoft 365 certified, sourced from Microsoft Defender for Cloud Apps. This feature is enabled by default with no user impact.

Starting October 6, 2025, Viva Engage emails will switch from @yammer.com domains to tenant-specific @engage.mail.microsoft domains. Admins must update mail flow rules, spam filters, and safe sender lists accordingly to ensure proper email delivery and filtering. Users should update personal inbo...

Windows 11 version 25H2 is available from September 30, 2025. Upgrading during October (a baseline month) keeps devices eligible for hotpatch updates; upgrading outside baseline months pauses hotpatching until the next baseline. Organizations should schedule upgrades accordingly to maintain hotpa...

Intune will remove all guided scenarios except Windows 365 Boot from the admin center in January 2026. Existing configurations remain unaffected, and no admin action is needed. Alternative guidance and resources are available for managing Intune policies and apps.

We are announcing the ability to audit the original user-selected Choice Data

We are announcing the ability to opt-in to protect your customers'

We are announcing the ability to enable your site's visitors

🚨Major Update: This post contains a significant change that may impact your

We are announcing the ability to use the voice channel in the

We are announcing the ability to insert Copilot prompts in email templates