Microsoft announced a number of updates in December including Teams, Microsoft 365 apps, Intune, Entra, Copilot -- including calendar search within Outlook -- plus tenant-to-tenant migration tools for E3 & E5 users, auto-archiving in Exchange Online, expansion of Intune Suite for E3 & E5, and more!
Check out the full video and details for more info:
New Features
Microsoft Teams is improving the notification experience by adding message previews to more types of notifications, including channels, mentions, and reactions. Coming mid-January 2026, expected to compete by Jan 2026.
Commonly misspelled words will be automatically corrected during message composition. The feature is enabled by default; no admin configuration is required. Coming mid-January 2026 and expect to complete by late January 2026.
This feature lets users select up to five messages from a chat or channel and forward them together in one message, preserving context and order. Coming mid-January 2026 and expect to complete by late January 2026.
A voice profile enables features such as voice isolation, speaker recognition, identification in meeting rooms, improved transcripts, and enhanced meeting recaps and insights powered by Microsoft 365 Copilot. If you haven’t enrolled, you’ll receive an in-product prompt to opt in and enroll simply by speaking during a meeting. Admins can enable or disable this feature for their organization.
Affects All enterprise Microsoft Teams customers except Education (EDU) tenants. Coming mid-February 2026 and is expected to complete by end of February 2026.
IT admins can customize the message and privacy link shown in Teams notifications when recording or transcription is used. Coming early Jan 2026 an expected to be completed by late Jan 2026.
These updates make it easier and faster for administrators to identify issues during meetings and calls, understand root causes, and take action with confidence. Coming late January 2026 and is expected to complete by mid-February 2026.
New Features
New Outlook for Windows will support Wait on Send for Oversharing, allowing admins to block email sending if Data Loss Prevention (DLP) policy evaluation is not completed for labeled or sensitive content. The new experience allows for multi-tasking and does not block the user from using New Outlook even when mail is in evaluation. Coming early to late January 2026.
More info: https://learn.microsoft.com/en-us/purview/dlp-osp-get-started#steps-to-configure-wait-on-send
UI Update
New Permissions report in the SharePoint admin center under Data access governance. This report helps SharePoint admins quickly identify which sites a specific user can access, including whether access is granted directly or through group membership. Coming mid-December 2025 and completes by mid-January 2026.
Learn more: Discover sites accessible by a given user with the snapshot report
New Features
We’re enabling Microsoft 365 subscribers to use Copilot Chat when working in Microsoft Excel modern workbooks (.xlsx, .xlsb, .xlsm, .ods, .xltx, .xltm, and .xlam files) stored locally.
Coming mid-December 2025 and is expected to complete in January 2026.
This feature will give customers a centralized, intelligent view of their content landscape helping them understand how information is distributed and governed across the organization. By intelligently organizing SharePoint sites into clusters based on site metadata and admin-defined attributes, this feature enables scalable, context-aware management.
Coming mid-December 2025, expected to complete by late February 2026.
New Features
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.
New Features
New capability that enables organizations to synchronize security groups across Microsoft Entra tenants. This feature simplifies collaboration scenarios by allowing shared access to resources across tenants while maintaining centralized group management.
Learn more: Configure cross-tenant synchronization – Microsoft Entra ID | Microsoft Learn
Coming late April 2026 and completes by late April 2026.
New Features
Users can now choose the default modes for GP-5:
Coming December 4, 2025 and expected to be completed by December 8, 2025.
To support IT admins in navigating the fast-paced AI landscape, Microsoft is introducing Copilot Readiness Packages in the Microsoft 365 Admin Center. These packages offer a centralized experience to discover Microsoft’s recommended admin presets, grouped by key administrative outcomes.
Coming mid-January 2026; completes late February 2026.
Microsoft 365 Copilot now supports natural language commands to help users pin or unpin important messages, flag or unflag items, mark tasks complete, archive clutter, and mark emails as read or unread.
Coming mid-December 2025 and is expected to complete by late January 2026.
Find meetings and everything connected to them in seconds with Calendar Search in Microsoft 365 Copilot. This feature makes it effortless to locate any meeting, even if you only remember a few details.
Just type what comes to mind, like “last week’s design review,” “budget sync with marketing,” or “next quarterly planning session,” and Copilot instantly finds the right event.
Coming early October 2025 and is expected to complete by late December 2025.
We’re introducing a new capability in Microsoft 365 Copilot chat that allows users to RSVP to meetings directly within the chat experience.
Coming early January 2026 (previously mid-December 2025) and is expected to complete by end of January 2026 (previously late December 2025).
New Features
To simplify cross-tenant migrations, we’re introducing a unified interface that enables administrators to move user data—including Exchange mailboxes, OneDrive files, and Teams chats and meetings—across Microsoft 365 tenants.
Learn more: Migration orchestrator overview – Microsoft 365 Enterprise | Microsoft Learn
Only Available for E3/E5 licensing. Public Preview (Worldwide): Begins early December 2025.
We’re introducing Auto Archiving for Exchange Online to help prevent mail flow disruptions caused by mailboxes reaching their storage quota. This update ensures real-time mailbox health monitoring by automatically moving the oldest items to the archive when mailbox usage exceeds 96% of its quota.
Learn more: Auto-archiving in Exchange Online | MIcrosoft Learn
Microsoft is bringing powerful capabilities of the Microsoft Intune Suite to Microsoft 365 E3 and Microsoft 365 E5, and pricing has been updated effective July 2026.
Full Announcement: https://www.microsoft.com/en-us/microsoft-365/blog/2025/12/04/advancing-microsoft-365-new-capabilities-and-pricing-update/
For the 2026 planned product additions to Microsoft 365, a Microsoft 365 admin center notification will be posted for administrators of eligible organizations 30 days in advance of the effective change.
Introducing an integration between Microsoft Teams and Microsoft Defender for Office 365 that allows security admins to manage blocked external users in Teams through the Tenant Allow/Block List (TABL) in the Microsoft Defender portal.
Coming early January 2026, expected to be complete by mid-January 2026.
We’re introducing a new purge mitigation action in Microsoft Purview Data Security Investigations (DSI). This feature enables admins to quickly and efficiently delete sensitive or overshared content during investigations, directly within the product experience.
The purge action complements DSI’s AI-powered capabilities—such as categorization, AI search, and risk analysis—helping organizations reduce data exposure and mitigate leaks faster.
Coming early March 2026 and complete by late March 2026.