MC1077861 (Updated) Microsoft Defender for Cloud Apps: SIEM agents will retire

Retirement of SIEM agents for Microsoft Defender for Cloud Apps is paused; no new SIEM agents can be configured after June 19, 2025. Transition to supported APIs for continued access.

Microsoft Defender XDR

planForChange

2025-12-23

2025-06-18

Defender, Entra

Plan migration from SIEM agents to supported APIs · Stop configuring new SIEM agents after June 19, 2025

MC1129126 (Updated) Use Microsoft Copilot in Word to create, edit, and transform content directly from chat

Agent Mode in Microsoft 365 Copilot for Word enables users to create and edit documents more interactively, rolling out from Nov 17, 2025 to early Jan 2026.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-22

—

Copilot, Word

Inform users about Agent Mode · Encourage users to explore new features

MC1134737 (Updated) Microsoft Teams: Private channels increased limits and transition to group compliance

Private channels in Teams will migrate to group mailboxes starting October 2025; admins must update compliance policies to team groups before migration to ensure policy continuity.

Microsoft Teams

planForChange

2025-12-19

—

Teams, Purview

Review and update compliance, retention, legal hold, and DLP policies for private channels to apply to team groups · Ensure group mailbox policies are set before October 2025

MC1092458 (Updated) Microsoft Exchange Online: New Message Trace will be GA; legacy Message Trace will retire

New Message Trace in Exchange Online is now generally available; legacy Message Trace UI and cmdlets will be deprecated starting September 1, 2025. Update scripts to use new cmdlets before then.

Exchange Online

planForChange

2025-12-19

2025-08-31

Exchange

Review and update automation/scripts to use new Message Trace cmdlets · Notify admins and update documentation

MC1193421 (Updated) Retirement of several Microsoft Planner features in early 2026 as part of a Planner update

Major Planner update rolls out mid-Jan to mid-Feb 2026, adding new features, retiring several (comments, whiteboard, Loop, iCalendar, Viva Goals), and temporarily disabling plan conversion.

Planner

planForChange

2025-12-19

2026-01-15

Planner, Teams, Loop, Viva, Outlook, Copilot, Whiteboard

Notify users of upcoming changes · Update documentation

MC1199768 Outlook: New and improved People Hub on Web

Outlook Web's new People Hub brings a modern, multi-column contacts view, improved search, auto-linking of duplicates, and enriched profiles; all users will be migrated to this experience.

Microsoft 365 for the web

planForChange

2025-12-18

2026-01-15

Microsoft 365 For The Web, Outlook

Train users on new Contacts experience

MC1199766 Learning Activities now available in Microsoft 365 Education and Copilot

Learning Activities is now available by default for Microsoft 365 Education and Copilot users, enabling creation of interactive activities like flashcards from existing content.

Microsoft 365 suite, Microsoft Copilot (Microsoft 365)

planForChange

2025-12-18

—

Microsoft 365, Copilot

Communicate change to educators and helpdesk · Update internal documentation

MC1199746 Take Action: Out-of-band update to address MSMQ service issues leading to queue operations and resource-related errors

An issue with MSMQ after the Dec 2025 Windows security update affects enterprise environments; an out-of-band fix is available via Microsoft Update Catalog as of Dec 18, 2025.

Windows

stayInformed

2025-12-18

—

Windows, Windows Server, Windows 10

Review affected Windows versions · Download and install the OOB update from Microsoft Update Catalog

MC1191921 (Updated) New enrollment dashboard and data deletion controls in Teams Admin Center

Teams Admin Center adds a dashboard for viewing and deleting user voice/face enrollment data, enhancing admin control and compliance for AI meeting features.

Microsoft Teams

planForChange

2025-12-18

2026-02-01

Teams

Review new dashboard and data deletion controls in Teams Admin Center

MC1139488 (Updated) Microsoft 365 Copilot: New ways to include files and emails as part of prompts in chat web scope

Copilot Chat now lets users reference files and, starting October 2025, emails in prompts by typing '/', improving prompt creation and relevance; email access is limited to Copilot Chat in Outlook.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-17

2026-01-31

Copilot, Outlook

Inform users about new prompt features

MC1184999 (Updated) Copilot can now automatically reschedule 1:1 meetings and personal events based on your preferences

Copilot will automatically reschedule flexible 1:1 meetings and personal events to resolve conflicts, with user-set preferences, for Copilot-licensed users.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-17

2026-01-15

Copilot, Outlook

Inform users about new rescheduling feature · Review internal calendar management guidance

MC1197103 (Updated) Exchange Online ActiveSync device support update

Starting March 1, 2026, Exchange Online will block devices using Exchange ActiveSync versions lower than 16.1 to enhance security and reliability.

Exchange Online

planForChange

2025-12-16

2026-02-28

Exchange

Identify devices using EAS below 16.1 · Update affected devices/apps to EAS 16.1+

MC1182702 (Updated) Microsoft 365 Copilot: Prepare for your meeting with Copilot chat in Outlook mobile

Outlook mobile users with Copilot licenses will soon access Copilot chat to prepare for meetings on Android and iOS; feature is on by default and rolls out mid-Jan to mid-Feb 2026.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-16

2026-01-15

Copilot, Outlook

Communicate feature to helpdesk staff · Update internal documentation

MC1197146 Express voice enrollment in Microsoft Teams

Teams will prompt users to enroll their voice profile during meetings for enhanced AI features; feature is ON by default for enterprise tenants starting February 2026.

Microsoft Teams, Microsoft Copilot (Microsoft 365)

planForChange

2025-12-15

2026-02-01

Teams, Copilot

Review Teams AI policy settings · Update PassiveVoiceEnroll config via PowerShell if needed

MC1197131 Retirement of featured links on SharePoint Start Page

SharePoint Start Page's Featured Links will be retired starting March 2026; admins must switch to global navigation or Viva Connections resources for highlighted content.

SharePoint Online

planForChange

2025-12-15

2026-03-01

SharePoint, Viva

Review and replace existing Featured Links · Adopt global navigation or Viva Connections resources

MC1191578 (Updated) Update to EWS Access for Kiosk / Frontline Worker Licenses

Starting June 30, 2026, EWS access will be blocked for mailboxes with Kiosk, F1, or F3 licenses; assign higher-tier licenses to maintain EWS access.

Exchange Online

planForChange

2025-12-15

2026-06-30

Exchange, Microsoft 365

Review mailbox licenses · Assign EWS-enabled licenses to affected users

MC1197104 Deprecation of Designer bot and Designer banners in Teams

Designer bot and banners in Teams will retire starting mid-January 2026, with Copilot in Teams replacing image generation features; no admin action needed but notify users.

Microsoft Teams

planForChange

2025-12-15

2026-01-15

Teams, Copilot

Notify users about Designer bot and banner retirement · Update internal documentation

MC1085684 (Updated) Realtime voice is now available in M365 Copilot Chat and M365 Copilot

Voice chat is coming to Microsoft 365 Copilot, enabling users to interact with Copilot hands-free across platforms; rollout starts early September 2025 and completes by January 2026.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-15

—

Copilot

Notify users · Update internal documentation

MC1182004 (Updated) Microsoft Teams: Chat with anyone with an email address

Teams users in eligible SMB tenants can now invite non-Teams users to join chats as guests without requiring account sign-up, governed by existing guest policies.

Microsoft Teams

planForChange

2025-12-12

2026-02-01

Teams, Entra

Update internal documentation · Inform helpdesk/support teams

MC1193408 (Update)Action Required: Trust DigiCert Global Root G2 Certificate Authority for using Entra services by January 7, 2026

Microsoft Entra will migrate DigiCert certificates from G1 to G2 root CA on Jan 7, 2026; clients not trusting G2 may face authentication failures.

Microsoft Entra

planForChange

2025-12-12

2026-01-07

Entra

Trust DigiCert Global Root G2 and subordinates · Remove pinning to DigiCert G1

MC1148543 (Updated) Microsoft Teams: Collaborative Notes in Chats

Teams Collaborative Notes (powered by Loop) will be available in group chats, enabling real-time co-editing of notes, agendas, and action items directly in Teams chats.

Microsoft Teams

planForChange

2025-12-11

—

Teams

Review and update internal documentation · Inform users about the new Notes tab

MC1193689 Microsoft baseline security mode for Office, SharePoint, Exchange, Teams, and Entra

Baseline Security Mode adds a dashboard in Microsoft 365 admin center to assess and align tenant security with Microsoft’s recommended standards, starting rollout mid-November 2025.

Microsoft 365 suite

planForChange

2025-12-10

—

Microsoft 365, Office, SharePoint, Exchange, Teams, Entra

Review Baseline Security Mode dashboard · Run impact analysis reports

MC1193628 The December 2025 Windows security update is now available

December 2025 security update for Windows addresses security issues, Copilot and File Explorer bugs, and network adapter fixes; install promptly as no non-security preview update this month.

Windows

stayInformed

2025-12-09

2025-12-25

Windows, Copilot

Install December 2025 security update · Review release notes

MC1184649 Microsoft SharePoint: Retirement of IDCRL authentication protocol and enforcement of OpenID Connect and OAuth protocols

Legacy IDCRL authentication in SharePoint Online and OneDrive for Business will be blocked by default on Jan 31, 2026, and permanently retired on May 1, 2026; migrate to modern authentication protocols.

SharePoint Online, Microsoft OneDrive

planForChange

2025-12-09

2026-01-30

SharePoint, OneDrive

Migrate clients and apps to OpenID Connect or OAuth · Review and update configurations using IDCRL

MC1193419 Content Security Policies (CSP) are coming to SharePoint Online and might impact your custom SPFx solutions

SharePoint Online will enforce Content Security Policy from March 1, 2026, blocking scripts from untrusted sources and requiring admins to update SPFx solutions as needed.

SharePoint Online

planForChange

2025-12-09

2026-03-01

SharePoint

Review and update SPFx solutions to use only trusted script sources · Move inline scripts to external files and add as trusted sources

MC1127230 (Updated) Microsoft 365 Copilot: Content Sources in Copilot Chat

Copilot Chat will let licensed users select specific content sources for responses, improving relevance and control; rollout starts January 2026 and is enabled by default.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-09

2026-01-01

Copilot, Microsoft 365

Inform helpdesk staff · Update internal Copilot guidance

MC1193415 Microsoft Teams: Find SharePoint agents in Teams chats and Teams Store

Users can now discover and add SharePoint agents directly in Microsoft Teams chats on Desktop and Mac, with agents available in the Teams Store for easier deployment.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-09

2026-01-01

Copilot, Teams, SharePoint

Ensure users have E3/E5 with Teams and Copilot or PAYG for SharePoint agents · Inform helpdesk staff

MC1193412 Microsoft 365 Admin Center: Retirement of Technology Experiences score from Adoption Score

Technology Experience score and sub-scores will be retired from Adoption Score in Microsoft 365 Admin Center between Jan 15-30, 2026, reducing the max score from 900 to 600.

Microsoft 365 apps

planForChange

2025-12-09

2026-01-15

Microsoft 365 Apps, Microsoft 365 Admin Center, Copilot

Inform admins/report readers about Adoption Score changes

MC1134738 (Updated) New request and approval experience for Microsoft agents in the Microsoft 365 admin center

A new request and approval process for Microsoft-built agents in Copilot will roll out in January 2026, enabling centralized management of agent access requests in the Microsoft 365 admin center.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-08

2026-01-01

Copilot, Microsoft 365 Admin Center

Review and manage agent access requests in Copilot > Agents & connectors · Approve or reject user requests as needed

MC1158908 (Update)Support for Events from email in Outlook is changing—Schema.org markup required for reliable calendar extraction

Outlook's Events from email feature will become less reliable for providers not using Schema.org markup; migration is strongly encouraged to maintain accurate calendar events.

Microsoft 365 suite

planForChange

2025-12-08

2026-01-30

Microsoft 365, Outlook

Identify travel partners sending booking emails · Encourage partners to adopt Schema.org markup

MC1192661 Workspaces in Edge: Upcoming migration to improved architecture

Edge Workspaces will migrate saved data from OneDrive/SharePoint to Edge Sync in mid-February 2026, removing collaboration and sharing features; no admin action required unless opting out.

Microsoft 365 suite

planForChange

2025-12-06

2026-02-15

Microsoft 365, Edge, OneDrive, SharePoint

Notify users of changes · Update internal documentation

MC795355 (Updated) Microsoft Teams admin center: App centric management for app installation and changes to app setup policies

Teams app-centric management lets admins preinstall apps for users, groups, or all users; rollout starts mid-October 2025 for some tenants, with existing app setup policies partially restricted.

Microsoft Teams

planForChange

2025-12-04

—

Teams

Review app setup policies · Update internal documentation if needed

MC1191923 Microsoft Purview | Data lifecycle management – Auto archive for Exchange Online

Exchange Online will auto-archive mailbox items when usage exceeds 96% of quota, starting January 2026, to prevent mail flow disruptions; enabled by default for all tenants.

Microsoft Purview

planForChange

2025-12-03

2026-01-01

Purview, Exchange

Review mailbox archive provisioning · Update internal documentation

MC1085133 (Updated) Microsoft Teams: Rule-based enablement of Microsoft 365 third-party apps in the Teams admin center

Admins can soon manage Microsoft 365 certified SaaS apps in Teams via new org-wide settings, enabling enhanced control and security; rollout starts mid-February 2026.

Microsoft Teams

planForChange

2025-12-03

2026-02-15

Teams, Microsoft 365

Review current app management configuration · Notify users of upcoming changes

MC1191607 Know Your Customer (KYC) required for Teams Phone porting requests

Teams Phone port-in requests will require KYC business info and documents via Teams Admin Center before submission, starting rollout in January 2026; existing numbers are unaffected.

Microsoft Teams

planForChange

2025-12-02

2026-01-01

Teams

Verify KYC status in Teams Admin Center · Complete KYC onboarding if not done

MC929025 (Updated) Microsoft Loop – Multi-Geo Support for Shared Loop workspaces

Data storage for shared Loop workspaces in multi-geo tenants will be located in the expected geo, rolling out mid-Dec 2025 to mid-Jan 2026; no admin action needed.

Microsoft 365 apps

planForChange

2025-12-02

—

Microsoft 365 Apps, Loop, SharePoint

—

MC1188222 (Updated) Microsoft Teams: Private chat for organizers and presenters in structured meetings, webinars, and town halls

Teams is adding private chat for organizers/presenters in structured meetings and unifying backroom chat behavior in town halls, with rollout starting February 2026.

Microsoft Teams

planForChange

2025-12-01

2026-02-01

Teams

Review Teams meeting policies · Communicate changes to staff and organizers

MC1191257 New Microsoft Purview data security posture management experience

Microsoft Purview DSPM is evolving with unified data and AI security, AI observability, Copilot automation, third-party integrations, and enhanced reporting; rollout starts December 2025.

Microsoft Copilot (Microsoft 365), Microsoft Purview

planForChange

2025-12-01

—

Copilot, Purview, SharePoint

—

MC1129730 (Updated) Remove toggle for Calendar in Teams

The new Microsoft Teams calendar experience will become default and the legacy calendar will be deprecated; toggle to switch calendars will be removed in January 2026.

Microsoft Teams

planForChange

2025-12-01

2026-01-15

Teams, Outlook, Copilot, Places

Inform users about the new calendar · Update documentation and training materials

MC1208689 Microsoft 365 Copilot: Streamline SharePoint list creation with new list agent

SharePoint list agent powered by Copilot enables users to create SharePoint lists via natural language or structured content; GA rollout starts late Jan 2026 and will be ON by default.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-29

2026-01-31

Copilot, SharePoint, Teams, Outlook, Word, OneDrive

Decide on Frontier Public Preview participation · Communicate new feature to support teams

MC1204658 Dynamics 365 Customer Service – Simulate AI field prediction capability from Case Management Agent

Admins can now simulate Case Management Agent field prediction in Dynamics 365 Customer Service, with general availability on January 23, 2026.

Dynamics 365 Apps

stayInformed

2025-12-24

2026-01-23

Dynamics 365 Apps, Dynamics 365

—

MC1204498 Microsoft 365 Copilot for Service – Create case records from customer emails with one click

Outlook users with Copilot for Service can create case records from customer emails; feature available January 1, 2026.

Power Platform

stayInformed

2025-12-24

2026-01-01

Power Platform, Outlook, Copilot

—

MC1154790 (Updated) Microsoft 365 Copilot App for Windows: "Update available" button

In January 2026, the Microsoft 365 Copilot app for Windows adds a non-blocking Update button, letting users update the app without workflow disruption.

Microsoft 365 Copilot Chat

stayInformed

2025-12-23

2026-01-01

Copilot Chat, Copilot

Inform users about the new Update button · Update internal documentation if needed

MC1202974 Microsoft Outlook: Customizable oversharing dialog for DLP in New Outlook

New Outlook for Windows adds customizable oversharing dialogs for DLP, letting admins tailor end-user prompts when oversharing is detected; feature is off by default unless configured.

Exchange Online

stayInformed

2025-12-22

2026-01-01

Exchange, Outlook

Review DLP policy tip settings · Configure oversharing dialog if enabling feature

MC1202968 Agent Mode in Excel for Windows and Mac

Agent Mode in Copilot for Excel enables users to use natural language to build, edit, and enrich workbooks, with web search and Claude AI support, rolling out by default from Jan 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-22

2026-01-15

Copilot, Excel

Inform helpdesk and support teams · Update internal documentation or training

MC1182706 (Updated) Microsoft Teams Rooms: Front-of-room view control for Town Halls on Android

Adaptive Front-of-Room Experience for Teams Rooms on Android in Town Hall scenarios rolls out, enhancing presenter control and attendee focus; Teams Rooms Pro license required.

Microsoft Teams

stayInformed

2025-12-22

2025-12-31

Teams

Confirm Teams Rooms Pro license · Assign presenter role to Teams Room for Town Halls

MC1192257 (Updated) Microsoft Defender Threat Intelligence: Convergence with Microsoft Defender and Microsoft Sentinel

MDTI is merging with Defender and Sentinel; by Aug 1, 2026, MDTI features will need Defender or Sentinel licenses and new APIs will replace old MDTI APIs.

Microsoft Defender XDR

planForChange

2025-12-22

2026-08-01

Defender, Sentinel

Plan transition to Defender or Sentinel · Review MDTI licensing needs

MC1200576 Teams admin center: Messaging safety defaults changing to "On" by default

Starting January 12, 2026, Teams will enable weaponizable file and malicious URL protection, plus reporting, by default for tenants using default messaging safety settings.

Microsoft Teams

planForChange

2025-12-19

2026-01-12

Teams

Review Teams messaging safety settings · Adjust and save settings if custom defaults are desired

MC1200572 Chat history landing page: Filtering UI refresh

Chat History filtering UI is being refreshed with a single 'filter pill' for easier filter management; rollout starts mid-January 2026 and completes by late January 2026.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-19

2026-01-15

Copilot, Copilot Chat, Teams

Communicate UI change to helpdesk and users · Update internal documentation if needed

MC1200058 Microsoft Defender for Office 365: Admins can block external users in Microsoft Teams from Defender Portal

Teams and Defender for Office 365 integration lets security admins centrally manage blocked external users/domains in Teams via the Defender portal; rollout starts January 2026.

Microsoft Teams, Microsoft Defender XDR

stayInformed

2025-12-19

2026-01-01

Teams, Defender

Enable Teams settings for blocking users/domains · Grant security team management access

MC1187401 (Updated) Microsoft dark themes for SharePoint sites

SharePoint will introduce two new Microsoft-designed multi-color dark themes, available out-of-the-box for site owners and admins to enhance branding and visual comfort.

SharePoint Online

stayInformed

2025-12-19

2026-01-01

SharePoint

Notify site owners and users about new dark themes · Encourage exploration of new theme options

MC1199767 Microsoft Teams: Select multiple messages to forward

Teams users can now select and forward up to five messages together in one message, preserving context and order; feature is on by default for desktop and web.

Microsoft Teams

stayInformed

2025-12-18

2026-01-15

Teams

Notify users about multi-select forward · Update internal documentation

MC1199763 Microsoft Purview | Data Security Investigations – Introducing new purge mitigation action

Microsoft Purview Data Security Investigations adds a purge action for admins to quickly delete sensitive or overshared content during investigations, available by default and respecting existing policies.

Microsoft Purview

stayInformed

2025-12-18

2026-01-01

Purview

Notify security and compliance teams · Update internal DSI documentation

MC1178507 (Updated) Microsoft Teams town halls: Full HD (1080p) video resolution coming to Teams Premium

Teams Premium town halls will support 1080p video; admins must enable via policy. Rollout starts January 2026, requiring network support and policy updates.

Microsoft Teams

stayInformed

2025-12-18

2026-01-15

Teams

Enable 1080p via CsTeamsEventsPolicy · Review network capacity for 1080p

MC1186367 (Updated) Announcing the new pay-as-you-go experience in Microsoft 365 Admin Center

A new PAYG experience in Microsoft 365 Admin Center launches Jan 15, 2026, centralizing billing for Backup and Copilot; departmental billing for Backup arrives Q1 2026.

SharePoint Online, Microsoft 365 Copilot Chat

stayInformed

2025-12-17

2026-01-15

SharePoint, Copilot Chat, Microsoft 365 Admin Center, Backup, Copilot

Review new PAYG page under Billing in MAC · Monitor migration announcements for Backup customers

MC1155927 (Updated) Facilitator agent to be generally available in Teams meetings

Facilitator agent for Microsoft 365 Copilot is now generally available in Teams, enabling AI-powered meeting management, with eDiscovery for tasks rolling out from January 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-17

2026-01-31

Copilot, Teams, Planner, Word, Loop

Notify Copilot-licensed users about Facilitator · Update internal documentation

MC1198705 Microsoft 365 Copilot: Nine new connectors now generally available

Nine new Microsoft 365 Copilot connectors for third-party systems are now generally available, enabling users to search and interact with external data via Copilot and Microsoft Search.

Microsoft 365 Copilot Chat

stayInformed

2025-12-17

2025-12-24

Copilot Chat, Copilot, Microsoft 365

Review connector documentation · Configure authentication and permissions

MC1198702 Microsoft Outlook: Wait on Send for Data loss Prevention

New Outlook for Windows adds Wait on Send for DLP, letting admins block email sending until policy evaluation completes; feature is off by default and configurable via Exchange mailbox settings.

Exchange Online, Microsoft 365 apps

stayInformed

2025-12-17

2026-01-01

Exchange, Microsoft 365 Apps, Outlook

Review DLPWaitOnSend settings · Enable feature if desired via Exchange mailbox policy

MC1166877 (Updated) Microsoft Teams: Emojis in section names

Teams users can now add emojis to custom section names on Desktop and Web, enhancing workspace personalization; feature is on by default and requires no admin action.

Microsoft Teams

stayInformed

2025-12-17

2025-12-31

Teams

Inform helpdesk staff · Update internal documentation if needed

MC1192258 (Updated) Microsoft 365 Copilot: RSVP to meetings directly in Copilot chat

Microsoft 365 Copilot chat will let users RSVP to meetings directly in chat, with options like Accept, Decline, Tentative, Follow, or Remove canceled meetings; feature is on by default.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-17

2026-01-01

Copilot

Inform helpdesk or users about new RSVP feature

MC1192664 (Updated) Microsoft 365 Copilot: Review PDFs using Copilot context menu and AI actions

Copilot adds a context menu to OneDrive web PDFs, enabling plain-language explanations and custom prompts for faster reviews; rollout starts early January 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-17

2026-01-01

Copilot, OneDrive

—

MC1178510 (Updated) Microsoft 365 Copilot: Generate text for a PowerPoint slide using slide context

Copilot in PowerPoint will soon generate titles, summaries, or captions from natural language prompts, with rollout starting mid-January 2026 and completing by mid-February 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-17

2026-01-15

Copilot, Powerpoint

Notify users about new Copilot features · Update internal documentation

MC1198596 Dynamics 365 Contact Center – Evaluate closed conversations with Quality Evaluation Agent

Dynamics 365 Contact Center adds automated evaluation of closed conversations, generating quality scores and insights for supervisors, available from January 16, 2026.

Dynamics 365 Apps

stayInformed

2025-12-17

2026-01-16

Dynamics 365 Apps, Dynamics 365

—

MC1198077 Microsoft Entra: Cross-tenant security group synchronization

Cross-tenant group synchronization in Microsoft Entra enables syncing security groups across tenants for centralized management; public preview starts January 2026.

Microsoft Entra

stayInformed

2025-12-16

2026-01-25

Entra

Identify groups for cross-tenant sync · Coordinate with other tenant admins

MC1194070 (Updated) Microsoft 365 Copilot: Declarative agents model upgrade to GPT-5.1

Microsoft 365 Copilot declarative agents will upgrade to GPT-5.1 with auto model selection, starting rollout in early January 2026 and enabled by default for all tenants.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-16

2026-01-01

Copilot

—

MC1197917 Power Platform admin center – Review security role descriptions and definitions

Admins can soon view Dataverse security role details, app associations, and privileges in Power Platform admin center; general availability starts January 16, 2026.

Microsoft Dataverse

stayInformed

2025-12-16

2026-01-16

Dataverse, Power Platform

Review and update custom security roles with Description, Applies to, and Summary fields

MC1186361 (Updated) Book a workspace when creating an event

Users can now book workspaces directly from the location field when creating calendar events; iOS long-press booking is being retired. Rollout starts mid-January 2026.

Exchange Online

stayInformed

2025-12-16

2026-01-15

Exchange, Outlook

Communicate change to helpdesk staff · Update documentation referencing old iOS booking method

MC1158902 (Updated) Microsoft Outlook: New third-party enriched properties available for customizing profile cards

Admins can add new properties (Role, Division, Employee ID, etc.) to Microsoft 365 profile cards from Entra ID or external HR systems; rollout starts mid-January 2026 and requires admin enablement.

Microsoft 365 suite

stayInformed

2025-12-16

2026-01-15

Microsoft 365, Outlook, Copilot, Entra

Review which properties to display · Ensure data is available in Entra ID or HR system

MC1192663 (Updated) SharePoint: OneDrive and SharePoint – recognize text in PDFs

OneDrive mobile app adds built-in OCR for scanned PDFs, enabling users to convert them into editable, searchable text; rollout starts early January 2026 and completes by early February 2026.

Microsoft OneDrive

stayInformed

2025-12-16

2026-01-01

OneDrive

Inform helpdesk staff · Update internal documentation if needed

MC1182688 (Updated) Microsoft Teams Rooms on Android: Recording and transcription controls (Teams Rooms Pro required)

Teams Rooms on Android will let users start, stop, and restart meeting recording and transcription directly from the device, with rollout starting mid-January 2026 for most tenants.

Microsoft Teams

stayInformed

2025-12-15

2026-01-15

Teams, OneDrive, SharePoint, Entra

Ensure room accounts and organizers have recording/transcription permissions · Communicate change to helpdesk/support

MC1197145 Microsoft Teams: Apps now supported in Private Channels

Teams now supports adding and using apps, including bots and tabs, directly in Private channels, with new governance, consent controls, and per-channel app management.

Microsoft Teams

stayInformed

2025-12-15

2026-01-15

Teams

Review Teams app policies · Update required apps for Private Channel support

MC1197144 Calendar Search in M365 Copilot Search

Copilot Calendar Search enables users to quickly find meetings and related content using natural language, with full context and security, rolling out to general availability by late December 2025.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-15

2025-12-31

Copilot, Outlook, Teams

Confirm Copilot license assignment · Review data governance and privacy settings

MC1196484 Microsoft Dataverse - Monitor batch workloads with Azure Monitor Application Insights

Batch workload telemetry for finance and operations apps in Dataverse will be available in Azure Monitor Application Insights, enhancing monitoring and diagnostics from January 14, 2026.

Microsoft Dataverse

stayInformed

2025-12-14

2026-01-14

Dataverse, Azure Monitor, Dynamics 365

—

MC877369 (Updated) Microsoft 365 Copilot usage metrics are now available in Graph API V1.0

Copilot usage metrics will be available in Microsoft Graph API v1.0 for production use, enabling custom reporting and analytics; Beta API retires March 31, 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

2025-12-31

Copilot, Graph, Microsoft 365

Notify admins about new API availability · Update codebase to use Graph API v1.0 for Copilot metrics

MC1127222 (Updated) Please update Microsoft 365 Office apps to a version higher than 16.0.18827.20202

Read Aloud, Transcription, and Dictation in Microsoft 365 Office apps will stop working on versions older than 16.0.18827.20202 after September 2026 due to a backend upgrade.

Microsoft 365 apps

planForChange

2025-12-12

2026-09-30

Microsoft 365 Apps, Office

Update all Office clients to version 16.0.18827.20202 or later

MC1194626 SharePoint site analytics: OneNote usage included in site usage reports

SharePoint site analytics will soon include OneNote file activity, providing more complete usage metrics and reflecting popular OneNote files in reports.

SharePoint Online, Microsoft 365 apps

stayInformed

2025-12-12

2026-01-15

SharePoint, Microsoft 365 Apps, OneDrive

Inform site admins and analytics stakeholders · Update internal documentation or reporting processes

MC1194612 Microsoft Viva - Viva Glint: Export Executive Summary report in Viva Glint to editable PowerPoint slides

Managers can soon export Viva Glint Executive Summary reports as editable PowerPoint slides, improving customization, layout, and export reliability over previous screenshot-based methods.

Microsoft Viva

stayInformed

2025-12-12

2026-01-05

Viva

Inform managers and report users · Update internal documentation if needed

MC1194071 Coming soon: IT admins will be able to customize recording and transcription notifications in Teams

Admins can customize Teams meeting recording/transcription notification messages and privacy links, with rollout starting January 2026; update meeting policies to align with internal requirements.

Microsoft Teams

stayInformed

2025-12-11

2026-01-01

Teams

Review and update Teams meeting policies · Prepare custom notification messages (max 200 chars)

MC1188234 (Updated) Microsoft 365 Copilot: Manage and deploy user-level connectors in Microsoft 365 admin center

Federated Copilot connectors let users securely connect external apps (e.g., Notion, Canva) in Copilot; admins manage and control connectors in the Microsoft 365 admin center.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-11

2026-01-12

Copilot, Microsoft 365

Review default connectors in Copilot > Connectors · Disable non-compliant connectors

MC1194079 Microsoft Teams: Restart Event feature for Town Hall with unrecoverable failures

Teams Events adds a Restart Event feature in early Jan 2026, letting organizers restart failed live events to minimize disruption; enabled by default, no admin setup needed.

Microsoft Teams

stayInformed

2025-12-10

2026-01-01

Teams

Inform event organizers and support teams · Update training and documentation

MC1186374 (Updated) Microsoft Teams: Miracast support for Teams Rooms on Windows (Teams Rooms Pro only)

Miracast wireless sharing will be available for Teams Rooms on Windows with Pro licenses, off by default, and can be enabled by admins via the IT portal starting February 2026.

Microsoft Teams

planForChange

2025-12-10

2026-02-15

Teams

Review Teams Rooms device Miracast compatibility · Enable Miracast in IT admin portal if needed

MC1193692 Microsoft 365: Enrich profile cards with custom properties from third-party systems

Admins can soon add up to 10 custom properties from external systems to Microsoft 365 profile cards, enhancing user profiles; feature requires configuration and is off by default.

Exchange Online

stayInformed

2025-12-10

2026-01-15

Exchange, Outlook, Microsoft 365

Review external systems for desired profile properties · Ingest properties using Microsoft Graph People connector

MC1193414 Microsoft 365 Copilot: Add web links as references in Copilot Notebooks

Copilot Notebooks will let users add public web links as references, enabling Copilot responses grounded in web content; rollout completes by mid-January 2026 and is enabled by default.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-09

2026-01-15

Copilot

Inform users about new web link reference feature · Update internal Copilot Notebooks documentation

MC1193405 Teams admin center: Troubleshoot meetings and calls with automatic issue identification and recommendations

Teams admin center gains enhanced meeting troubleshooting with auto-identified issues, smarter search, detailed telemetry, export, and Copilot integration, rolling out from late January 2026.

Microsoft Teams

stayInformed

2025-12-09

2026-01-25

Teams, Copilot

—

MC1191346 (Updated) Viva Engage: Update community cover photos in Teams for iOS.

Viva Engage community admins can soon update cover photos directly from the Teams iOS app, matching features on other platforms; rollout starts late December 2025.

Microsoft Teams, Microsoft Viva

stayInformed

2025-12-08

2025-12-25

Teams, Viva

Update internal documentation if needed

MC1193290 Coming Soon: Anthropic models will be available by default in Copilot experiences

Anthropic AI models in Copilot will be enabled by default for most customers on Jan 7, 2026, under Microsoft Product Terms; new admin toggle appears Dec 8, 2025.

Microsoft Copilot (Microsoft 365)

planForChange

2025-12-08

—

Copilot, Word, Excel, Powerpoint

Review new admin toggle for Anthropic models · Decide whether to opt in or out before Jan 7, 2026

MC1192665 Microsoft 365 admin center: Copilot settings – readiness

Copilot Readiness Packages in Microsoft 365 admin center offer centralized, guided deployment of Copilot with recommended settings and assessments, starting rollout mid-December 2025.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-06

2026-01-15

Copilot, Copilot Chat, Microsoft 365

Visit Copilot > Settings > Readiness in admin center · Review suggested presets and assessments

MC1188225 (Updated) Microsoft Edge for Business and Microsoft 365 Copilot: Introducing “What’s New” page after major updates

Edge for Business will show a 'What’s New' page after major updates, highlighting new Edge and Copilot features; rollout starts mid-January 2026 and is on by default but can be disabled by policy.

Microsoft 365 Copilot Chat

stayInformed

2025-12-05

2026-01-15

Copilot Chat, Edge, Copilot

Review configuration · Notify users

MC1164381 (Updated) OneDrive: Simplified file transfer for departing employees

OneDrive is enhancing file management for departing employees with improved notifications, bulk transfers, and streamlined access for managers, rolling out from mid-October 2025 to January 2026.

Microsoft OneDrive

stayInformed

2025-12-05

2026-01-31

OneDrive

Inform managers and secondary owners about new process · Update internal documentation

MC1192254 Microsoft Defender for Endpoint: New Microsoft Secure Score recommendations

New Microsoft Secure Score recommendations for Defender for Endpoint will appear in Public Preview at end of Dec 2025 to help block attacks and improve endpoint protection.

Microsoft Defender XDR

stayInformed

2025-12-05

2025-12-31

Defender

Review new Secure Score recommendations · Complete recommended security actions

MC1192253 Microsoft Teams: Network Device Interface (NDI) automatic binaries update for macOS

Teams on macOS will automatically install and update NDI for broadcasting audio/video streams, starting rollout in early January 2026; feature is enabled by default.

Microsoft Teams

stayInformed

2025-12-05

2026-01-01

Teams

—

MC1192251 Autocorrect in Microsoft Teams compose

Teams desktop apps will soon autocorrect common misspellings while composing messages; feature is enabled by default and users can disable it in settings.

Microsoft Teams

stayInformed

2025-12-05

2026-01-15

Teams

Update internal documentation · Inform helpdesk staff

MC1185442 (Updated) Decoupling admin controls for agents on/off from Researcher and Analyst

Researcher and Analyst tools in M365 Copilot Chat will remain available to all Copilot-licensed users, even if Copilot agents are disabled, starting December 15, 2025.

Microsoft 365 Copilot Chat

planForChange

2025-12-05

2025-12-15

Copilot Chat, Copilot

Review Copilot agent access settings · Communicate changes to helpdesk/support

MC1143276 (Updated) Microsoft Viva Engage: Smarter delivery of Community Announcement notifications

Viva Engage will use intelligent, behavior-based logic to deliver Community Announcement notifications via the most engaged channel, reducing notification fatigue starting January 2026.

Microsoft Viva

planForChange

2025-12-04

2026-01-31

Viva, Teams

Inform users about notification changes · Monitor user feedback on announcements

MC1187790 (Updated) Microsoft Outlook Mobile: Filter out declined meetings for a cleaner calendar view

Outlook Mobile will let users hide declined meetings, matching New Outlook and Outlook for the Web; rollout starts early January 2026.

Exchange Online, Microsoft 365 apps

stayInformed

2025-12-04

2026-01-01

Exchange, Microsoft 365 Apps, Outlook

Inform helpdesk staff · Update internal documentation

MC1187395 (Updated) New "Prepare" button added to the "Up Next" card for Microsoft 365 Copilot users

The Up Next card in Microsoft 365 will show a Prepare button up to 5 minutes before meetings, giving Copilot Premium users quick access to meeting prep tools; rollout starts early January 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-04

2026-01-01

Copilot, Microsoft 365

Inform helpdesk/support teams · Share support article with users

MC1185099 (Updated) New Dedicated Copilot Chat Button in Outlook for Android

Outlook for Android will get a separate Copilot Chat button for users with Copilot licenses, improving UI clarity; rollout starts early December 2025, completing by late January 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-04

2026-01-31

Copilot, Outlook

Inform helpdesk of UI change · Update internal training/docs if needed

MC906502 (Updated) Microsoft Outlook: Automatically display automapped calendars

Automapped calendars will be visible when switching from classic to new Outlook for Windows; rollout starts early Jan 2026 for Targeted Release and early Feb 2026 for General Availability.

Microsoft 365 for the web, Microsoft 365 apps

stayInformed

2025-12-03

2026-01-01

Microsoft 365 For The Web, Microsoft 365 Apps, Outlook

Notify users · Update documentation if needed

MC1191915 Microsoft Viva: Copilot Dashboard - Broader access to M365 Copilot Chat insights

Copilot Chat Adoption Metrics will be enabled by default in Copilot Dashboard for tenants with at least one Copilot license, providing new analytics and insights starting mid-January 2026.

Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-03

2026-01-15

Viva, Copilot

Review Microsoft announcement · Assess organizational impact

MC929022 (Updated) Microsoft Loop – Require Existing Microsoft 365 Group for New Loop workspaces

Admins can require new Loop workspaces to be managed by existing Microsoft 365 Groups, with rollout starting early March 2026 and completing by late March 2026.

Microsoft 365 apps

planForChange

2025-12-03

2026-03-01

Microsoft 365 Apps, Loop, Microsoft 365 Groups, SharePoint

Review governance strategy for Loop workspaces · Consider impact on workspace creation workflows

MC1183010 (Updated) Microsoft 365 Copilot: Q&A in Read Aloud enables real-time voice interactions

Read Aloud in Microsoft 365 gains Copilot Q&A, enabling interactive voice-driven document insights for Copilot-licensed users; rollout starts en-US only in January 2026.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-03

2026-01-01

Copilot, Copilot Chat, Microsoft 365

Notify users about the new Read Aloud experience · Update internal documentation referencing Read Aloud

MC1183009 (Updated) Microsoft 365 Copilot: Podcast voice interactions make audio experiences conversational

Interactive podcast feature with real-time voice Q&A for document-based audio overviews in Copilot rolls out en-US only, starting January 2026 and on by default for eligible users.

Microsoft 365 apps, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-03

2026-01-01

Microsoft 365 Apps, Copilot

Communicate change to helpdesk · Update internal documentation if referencing podcast/audio overview features

MC1173195 (Updated) Microsoft 365 Copilot: Graph APIs for agent and app management

New Microsoft Graph APIs will let admins programmatically access and manage Copilot agents and apps, enabling automated reporting and integration without UI workflows.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-03

2026-01-15

Copilot, Copilot Chat, Graph

Review Microsoft Graph API documentation

MC1182535 (Updated) Retirement of Visio Data Visualizer Add-in for Microsoft Excel

The Visio Data Visualizer add-in for Excel will be removed in January 2026 and its service will shut down on March 2, 2026; users should save diagrams as Visio files before shutdown.

Microsoft 365 for the web, Microsoft 365 apps

planForChange

2025-12-03

2025-12-07

Microsoft 365 For The Web, Microsoft 365 Apps, Excel, Visio, Microsoft 365

Inform users of add-in retirement and timelines · Encourage users to save diagrams as Visio (.vsdx) files before March 2, 2026

MC1138798 (Updated) Build SharePoint automations with Workflows—now aligned with the Teams experience

A new Workflows feature in SharePoint, powered by Power Automate, will streamline automation with a unified menu and enhanced interface, rolling out from January 2026 and generally available in February 2026.

SharePoint Online, Microsoft Teams

stayInformed

2025-12-03

2026-01-01

SharePoint, Teams, Power Platform, Microsoft 365

Inform users about new Workflows in SharePoint · Update training and documentation referencing Integrate menu or Power Automate

MC1189137 Dynamics 365 Contact Center - Analyze adherence history to optimize workforce planning

Dynamics 365 Contact Center will offer an Adherence History Report for analyzing workforce adherence, available from January 30, 2026.

Dynamics 365 Apps

stayInformed

2025-12-03

2026-01-30

Dynamics 365 Apps, Dynamics 365

—

MC1146821 (Updated) Rewrite with Microsoft 365 Copilot Chat coming soon to Edge for Business users

Edge for Business will add a Copilot-powered Rewrite feature for drafting and rephrasing text, enabled by default and manageable via policy, starting rollout in late January 2026.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-03

2026-01-25

Copilot, Copilot Chat, Edge

Review DLP configurations · Notify users

MC1187682 (Updated) Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding

Edge for Business will support Copilot Chat summarization and contextual grounding for browser tabs, Microsoft 365 docs, and YouTube videos, rolling out from late January 2026, off by default.

Microsoft 365 suite, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-03

2026-01-25

Microsoft 365, Copilot, Edge, Word, Excel, Powerpoint, Entra

Ensure users have Microsoft 365 Copilot access · Verify tenant and licensing prerequisites

MC1191612 Interpreter agent in Teams calls

Teams calls will soon support real-time speech-to-speech interpretation, letting users select listening language and voice options; rollout starts January 2026 for Windows desktop.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-03

2026-01-01

Copilot, Teams

Review and configure Teams calling policies for Interpreter and voice simulation · Update internal documentation and helpdesk guidance

MC1190199 Flexible layout for Teams meetings with resizable divider

Teams meetings will soon let users resize and swap shared content and video gallery areas for a more flexible, personalized layout, especially on large screens.

Microsoft Teams

stayInformed

2025-12-02

2026-01-01

Teams

Update training materials · Inform helpdesk staff

MC1191197 Dynamics 365 Project Operations - Edit per diem transaction date, exchange rate in expense management

Dynamics 365 Project Operations will allow editing transaction dates and exchange rates for per diem expenses, improving expense reporting accuracy and compliance from December 31, 2025.

Dynamics 365 Apps

stayInformed

2025-12-01

2025-12-31

Dynamics 365 Apps, Dynamics 365

—

MC1191196 Dynamics 365 Customer Service - Configure timeout rules override in SLA-based automatic actions

Dynamics 365 Customer Service will allow overriding timeout rules in SLA-based automatic actions, available from December 31, 2025.

Dynamics 365 Apps

stayInformed

2025-12-01

2025-12-31

Dynamics 365 Apps, Dynamics 365

—

MC1194604 Teams Admin Center: Best Practice dashboard to monitor VDI optimization for meetings

A new Teams admin dashboard will monitor adherence to best practices for VDI optimization, highlighting non-conformance and enabling export of impacted user/session data.

Microsoft Teams

stayInformed

2025-12-31

2026-01-15

Teams

Review dashboard insights after rollout · Use export to plan remediation for non-optimized VDI sessions

MC1208690 Microsoft 365 Copilot: Video Overviews in Copilot Notebook

Copilot Notebooks now lets users auto-generate narrated video summaries of notebook content, combining insights, visuals, and voiceover; feature enabled by default for eligible users.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-29

2026-02-28

Copilot

Review participation in Frontier Public Preview · Inform helpdesk/support teams

MC1208688 Microsoft Office for the web: Apply sensitivity labels with user-defined permissions

Office for the web now lets users apply sensitivity labels with custom permissions in Word, Excel, and PowerPoint, matching the experience in desktop apps and respecting existing admin policies.

Microsoft 365 apps, Microsoft Purview

stayInformed

2025-12-29

2026-02-15

Microsoft 365 Apps, Purview, Word, Excel, Powerpoint, Office For The Web, Microsoft 365

—

MC1184652 (Updated) Microsoft Teams: Upcoming improvements to the jump list experience on Windows

Microsoft Teams for Windows is updating its jump list to show meetings, add quick actions, and remove the 'Quit' option, starting rollout mid-November 2025 through mid-February 2026.

Microsoft Teams

planForChange

2025-12-19

2026-02-15

Teams

Inform helpdesk staff · Update documentation referencing 'Quit' in jump list

MC999442 Microsoft Purview | Data Lifecycle Management: Retention based on “last accessed” for OneDrive and SharePoint files

Admins can soon apply retention policies in OneDrive and SharePoint based on file last accessed date, improving Copilot response quality; rollout starts late May 2026.

Microsoft Purview

planForChange

2025-12-17

2026-05-25

Purview, OneDrive, SharePoint, Copilot

Review current retention configuration · Notify users

MC1183297 (Updated) New toolbar customization for multi-select in Outlook Mobile

Outlook Mobile's multi-select toolbar will soon let users customize action order and placement when selecting multiple emails, with new bulk actions like Move to Other, Report Junk, Ignore, Pin, and Snooze.

Exchange Online

stayInformed

2025-12-16

2026-01-15

Exchange, Outlook

—

MC1197289 Chat visibility in the Microsoft 365 Copilot App

Copilot Chat visibility and admin pin settings are changing in the Microsoft 365 Copilot app; rollout starts late January 2026 with clearer user messaging for blocked or ineligible users.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-16

2026-01-20

Copilot, Copilot Chat

Review documentation for Copilot app and Chat management (optional)

MC1148545 (Updated) Microsoft 365 admin center - Usage reports: Agent usage (preview)

A new usage report for Microsoft 365 Copilot Chat agents is rolling out in preview, with general availability starting March 2026, providing detailed agent usage metrics in the admin center.

Microsoft 365 suite, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

2026-03-01

Microsoft 365, Copilot

Notify admins managing Copilot agents about new reporting · Review new Agent usage report in admin center

MC1069563 Microsoft 365 admin center: Usage reports to manage metered consumption costs for Microsoft 365 Copilot Chat (preview)

A new Microsoft 365 Copilot Chat message consumption report is coming to the admin center, showing billed message metrics for pay-as-you-go billing; general availability starts March 2026.

Microsoft 365 suite, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

2026-03-01

Microsoft 365, Copilot

Notify admins managing agents about the new report

MC1182713 (Updated) Microsoft SharePoint: Update to News web part “See all” experience

SharePoint News web part's 'See All' page gets a modernized layout and new AI features (Copilot license required); rollout paused, resumes February 2026.

SharePoint Online, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-11

2026-02-01

SharePoint, Copilot

Inform helpdesk/support teams if needed

MC1162276 (Updated) Microsoft Teams: Trust Indicators – a new way of representing users outside your organization

Teams will show Trust Indicators—visual badges next to names—to identify external, guest, or anonymous participants, helping users avoid oversharing; feature is on by default.

Microsoft Teams

stayInformed

2025-12-11

2026-02-15

Teams

Review documentation on Trust Indicators · Inform helpdesk/support teams

MC1179162 (Updated) Microsoft Custom engine agents: Introducing file upload support

Starting February 2026, users can upload local or OneDrive files to Custom engine agents built with Copilot Studio or Agents Toolkit; feature is on by default and no admin action is required.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-11

2026-02-01

Copilot, OneDrive

Inform helpdesk staff · Update internal documentation

MC1183608 (Updated) Rate my call feedback experience update in Microsoft Teams

Teams Rate My Call feedback is changing to a thumbs up/down system with problem tokens and free-text; rollout starts late January 2026 for Windows, Mac, and Web clients.

Microsoft Teams

stayInformed

2025-12-11

2026-01-25

Teams

Communicate change to helpdesk/support · Update internal documentation

MC1194065 Latest on Windows quality updates out of the box – now disabled by default

The AllowOOBEUpdates CSP policy will be available and disabled by default starting January 2026, letting admins control Windows quality updates during OOBE on eligible Entra-joined Windows 11 devices.

Windows

stayInformed

2025-12-10

2026-01-01

Windows, Entra, Intune

Review device prerequisites · Ensure devices have November 2025 Windows update or OOBE ZDP

MC1193410 Automatic Windows event auditing configuration availability for unified sensors (V3.x)

A new opt-in feature for automatic event-auditing configuration in Defender for Identity unified sensors (v3.x) will be available starting early January 2026, simplifying deployment and policy enforcement.

Microsoft Defender XDR

stayInformed

2025-12-09

2026-01-01

Defender

Review unified sensor deployment strategy · Enable opt-in setting via UI or Graph API if desired

MC1019312 (Updated) Microsoft Teams: Meeting participants can request collaborative annotation sessions

Teams desktop users will soon be able to request annotation sessions during screen sharing; rollout starts February 2026 and completes by late February 2026.

Microsoft Teams

stayInformed

2025-12-08

2026-02-15

Teams

Notify users · Update documentation if needed

MC1188597 (Updated) Microsoft Viva: Transition to VFAM-based exclusion management

Viva Insights and Copilot Analytics user exclusions will be managed via Viva Feature Access Management (VFAM) policies starting January 2026, replacing the current list-based method.

Microsoft Viva

stayInformed

2025-12-05

2026-01-01

Viva, Copilot

Inform Viva admins of change · Review exclusion settings after VFAM rollout

MC1183298 (Updated) Updated compose toolbar and actions in Outlook Mobile

Outlook Mobile's compose toolbar will soon let users customize action order and placement for improved email workflows; rollout starts December 2025 and completes by end of January 2026.

Exchange Online

stayInformed

2025-12-04

2026-01-31

Exchange, Outlook

Notify helpdesk staff · Update internal documentation

MC772556 (Updated) Microsoft Teams: Shorter meeting URLs

Teams meeting URLs will be shortened and old parameters removed for security; new links expire after 60 days (scheduled) or 8 hours (Meet Now) starting January 2026 for most tenants.

Microsoft Teams

stayInformed

2025-12-04

2026-01-01

Teams

Review integrations using Teams meeting URL parameters · Notify users and update documentation about new link expiry

MC1183611 (Updated) Consult and merge into a meeting or group call via Dual-Tone Multi-Frequency (DTMF)

Teams will soon let users consult and merge PSTN callers behind IVR/auto-attendants into meetings using a new dialpad interface; rollout starts mid-February 2026 and is enabled by default.

Microsoft Teams

stayInformed

2025-12-03

2026-02-15

Teams

Update training/helpdesk docs to reflect new PSTN consult/merge feature

MC1181931 Dynamics 365 Contact Center - Update default Messaging Queues assignment strategy - Least Active

Dynamics 365 Contact Center will default to 'least active' assignment for Message Queues, effective February 6, 2026.

Dynamics 365 Apps

stayInformed

2025-12-03

2026-02-06

Dynamics 365 Apps, Dynamics 365

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MC1081568 (Updated) Microsoft Teams: Automatically set work location by connecting to a Wi-Fi network

Teams will soon allow automatic work location updates based on Wi-Fi or peripherals; admins must configure and enable this opt-in feature for users.

Microsoft Teams

stayInformed

2025-12-02

2026-02-01

Teams

Map Wi-Fi networks and peripherals to buildings · Enable automatic work location updates in Teams policy

MC1129718 (Updated) New Feature: Account Manager in Outlook for Windows

A new Account Manager in Outlook for Windows will provide profile pictures, account details, and account switching; rollout starts February 2026 for Targeted Release, March 2026 for General Availability.

Exchange Online, Microsoft 365 apps

stayInformed

2025-12-02

2026-02-01

Exchange, Microsoft 365 Apps, Outlook

Inform helpdesk and users about the new Account Manager experience

MC1191341 Microsoft Teams: Network Device Interface (NDI) bandwidth increase

Teams will boost NDI feed bandwidth, enabling up to eight 1080p streams in meetings without pinning or spotlighting, starting rollout in early January 2026 for Windows and Mac clients.

Microsoft Teams

stayInformed

2025-12-01

2026-01-01

Teams

Update internal NDI documentation if needed

MC1183006 (Updated) Introducing simplified admin controls to manage external collaboration in Teams admin center

Teams introduces a simplified admin experience for external collaboration with Open, Controlled, and Custom modes, available in Teams admin center starting February 2026.

Microsoft Teams

stayInformed

2025-12-01

2026-02-15

Teams

Review new external collaboration settings in Teams admin center when available

MC1199765 Microsoft Purview: Role management update

Purview admin roles will sync to new mapped Entra roles for secure permissions; rollout starts mid-February 2026, no admin action needed, do not assign these roles directly in Entra.

Microsoft Purview

stayInformed

2025-12-18

2026-02-15

Purview, Entra, Exchange, SharePoint, OneDrive, Teams

Review audit logs for new Purview-specific Entra roles · Do not assign mapped roles directly in Entra

MC1139489 (Updated) Microsoft 365 Copilot Chat: New ways to include files and emails in prompts

Copilot Chat now lets users reference files and, starting October 2025, emails in prompts by typing '/' in Outlook, improving prompt relevance and usability without changing permissions.

Microsoft 365 suite

planForChange

2025-12-17

—

Microsoft 365, Copilot, Outlook

Inform users about new reference capabilities

MC1198079 Migrate User Data Across Tenants: Mailboxes, OneDrives, and Teams Chats

A unified interface for cross-tenant migrations of Exchange, OneDrive, and Teams data will enter public preview in early December 2025, streamlining admin workflows.

Microsoft 365 suite

planForChange

2025-12-16

—

Microsoft 365, Exchange, OneDrive, Teams

Review migration policies · Inform IT/helpdesk teams

MC1192252 External authentication methods (EAM) – Public preview update

Registration enforcement for External Authentication Methods (EAM) in Public Preview starts Dec 8, 2025; new users must register an external method during sign-in.

Microsoft Entra

planForChange

2025-12-12

—

Entra

Communicate registration changes to users · Review and update EAM configurations

MC1122153 (Updated) New Tools feature coming to the Microsoft Copilot Chat prompt box

A new Tools feature in Copilot Chat will provide users with easy access to task-specific Copilot capabilities via a prompt box menu, starting rollout in October 2025.

Microsoft 365 suite, Microsoft Copilot (Microsoft 365)

planForChange

2025-12-12

—

Microsoft 365, Copilot

Inform users about the new Tools experience · Update internal documentation or training materials

MC1193693 SharePoint catalog management

SharePoint Catalog Management adds intelligent site clustering for scalable governance, lifecycle policies, and Copilot readiness; public preview starts Nov 2025, GA from Dec 2025.

SharePoint Online, Microsoft Copilot (Microsoft 365)

planForChange

2025-12-10

—

SharePoint, Copilot

—

MC1192003 Microsoft 365 Copilot: GPT-5 Mode selector adds Auto, Instant, and Thinking modes

Copilot users can now select reasoning depth (Auto, Quick response, Think deeper); feature rolls out Dec 4-8, 2025, enabled by default, no admin controls or required actions.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

planForChange

2025-12-04

—

Copilot, Copilot Chat, Microsoft 365

Inform users and helpdesk about new Copilot reasoning modes

MC1025217 (Updated) Microsoft Teams: In channels, the "Shared" tab (formerly the "Files" tab) will have new capabilities

Teams channels will rename the Files tab to Shared, combining shared post content and document library files in one place; rollout starts mid-November 2025 for general availability.

Microsoft Teams

stayInformed

2025-12-22

—

Teams, SharePoint

Notify users · Update documentation

MC1200577 OpenAI's GPT-Image-1.5 model is now available in Microsoft 365 Copilot

Microsoft 365 Copilot will upgrade image generation to GPT-Image-1.5, improving quality, speed, and editing; rollout starts mid-December 2025 with no admin action required.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-19

—

Copilot, Copilot Chat

Inform helpdesk/support of image improvements · Review Copilot image governance docs if needed

MC1198704 Microsoft SharePoint Online: Email customization for site access review from Data Access Governance reports

SharePoint admins can now customize Data Access Governance report emails for site access reviews to improve engagement; rollout starts mid-December 2025.

SharePoint Online, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-17

—

SharePoint, Copilot

Notify SharePoint admins · Update documentation and workflows

MC1189656 (Updated) Upcoming Change to Teams Desktop Client on Windows

Teams Desktop for Windows will add a new ms-teams_modulehost.exe process to improve calling performance; rollout timing and guidance will be updated in January 2026.

Microsoft Teams

planForChange

2025-12-17

—

Teams

Pause related testing and configuration updates · Prepare to allowlist ms-teams_modulehost.exe in endpoint/security tools

MC1150671 (Updated) Microsoft Viva : News AI audio briefing in Connections Mobile

A new AI audio briefing in Viva Connections for Teams mobile gives Copilot-licensed users AI-generated news summaries with playback controls; rollout starts late September 2025.

Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-17

—

Viva, Copilot, Teams

Inform Copilot-licensed users about new AI audio briefing feature

MC1198075 Site attestation policy is now generally available

SharePoint admins can now enable site attestation policies to require site owners to regularly confirm ownership, membership, and sharing settings, with configurable enforcement for non-compliance.

SharePoint Online

stayInformed

2025-12-16

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SharePoint

Notify SharePoint admins · Update documentation and workflows

MC1173931 (Updated) Copilot Pages: New feature—M365 Copilot Chat can now answer questions about the currently open page

Copilot Chat can now answer questions using content from the open Copilot Page in side-by-side mode; rollout starts early October 2025 and completes by early February 2026.

Microsoft 365 Copilot Chat

stayInformed

2025-12-16

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Copilot Chat, Copilot

Inform helpdesk and support staff · Update documentation and training

MC1185445 Microsoft Purview compliance portal: Purview Information Protection | Classifier Simulation Mode (Health Monitoring)

Microsoft Purview adds Classifier Simulation Mode, letting admins test custom classifiers on production data before publishing and access health insights in the compliance portal.

Microsoft Purview

stayInformed

2025-12-16

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Purview

Review classifier health insights in compliance portal · Monitor and adjust unhealthy SITs

MC1133508 (Updated) Microsoft Teams Integration with Microsoft Defender for Office Tenant Allow/Block List for blocking domains

Security admins can now manage blocked external domains in Teams via Defender portal using Tenant Allow/Block List; Teams admins must enable access for this integration.

Microsoft Teams, Microsoft Defender XDR

stayInformed

2025-12-16

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Teams, Defender, Entra

Enable 'Allow my security team to manage blocked domains' in Teams admin center · Set external access in Teams admin center to appropriate mode

MC1162964 (Updated) New in Teams – open channels in dedicated windows

Teams users can now open channels in separate windows for improved multitasking; rollout starts late October 2025 and completes by late January 2026, enabled by default.

Microsoft Teams

stayInformed

2025-12-16

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Teams

Inform helpdesk/support staff · Update internal training/documentation

MC1092459 (Updated) Microsoft Viva Insights: New prompt categories in the Microsoft Copilot Dashboard

Prompt categories will be added to Copilot Dashboard in Viva Insights, enhancing Copilot Chat metrics; rollout starts early September 2025, GA in January 2026.

Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-15

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Viva, Copilot

Notify admins and users · Update internal documentation

MC1197128 New permissions report available in SharePoint admin center

A new Permissions report in SharePoint admin center lets admins see all sites a user can access, detailing direct or group-based access; rollout starts mid-December 2025.

SharePoint Online

stayInformed

2025-12-15

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SharePoint, Copilot

Review current site permissions · Notify SharePoint admins

MC1182707 (Updated) New Copilot button in file previewer for OneDrive and SharePoint

A new Copilot button will appear in the file previewer in OneDrive and SharePoint, replacing the command bar Copilot entry for users with paid Copilot licenses.

SharePoint Online, Microsoft OneDrive, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

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SharePoint, OneDrive, Copilot

Communicate change to helpdesk/support · Update internal documentation

MC1146816 (Updated) Microsoft Copilot dashboard (in Viva Insights): New benchmarks to compare Copilot usage across organizations

Benchmarks in the Copilot dashboard (Viva Insights) let organizations compare Copilot usage internally and externally, aiding adoption analysis and strategy.

Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

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Viva, Copilot, Entra

Review Copilot dashboard user access · Adjust permissions as needed

MC846387 Microsoft Outlook: Replace quick compose pop-up with inline appointment creation in new Outlook for Windows and web

In new Outlook for Windows and web, single-clicking an empty calendar slot will allow inline appointment creation instead of opening the quick compose pop-up.

Exchange Online, Microsoft 365 for the web, Microsoft 365 apps

planForChange

2025-12-12

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Exchange, Microsoft 365 For The Web, Microsoft 365 Apps, Outlook

Notify users · Update documentation if needed

MC1124564 (Updated) Microsoft Outlook: Copilot chat now available to summarize emails for more users

Outlook users with Copilot chat can now summarize email threads directly from the reading pane, even without a Copilot license; feature rolls out from mid-September 2025.

Exchange Online, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

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Exchange, Copilot, Outlook, Entra

Review Copilot chat access policies · Pin Copilot chat to navigation bar for users

MC1181765 (Updated) Microsoft OneDrive for Business: Agents in OneDrive

OneDrive introduces AI-powered Agents for Copilot users, enabling grouped file queries, summaries, and collaboration; rollout starts mid-November 2025, completing by end of January 2026.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

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Copilot, OneDrive

Communicate change to helpdesk staff · Update internal documentation

MC1194615 Microsoft Excel: Enabling M365 subscribers to use Copilot Chat in locally stored modern workbooks

Copilot Chat will soon be available in Excel for locally stored modern workbooks, matching functionality for files in SharePoint and OneDrive; rollout starts mid-December 2025.

Microsoft 365 apps, Microsoft 365 Copilot Chat

stayInformed

2025-12-12

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Microsoft 365 Apps, Copilot Chat, Excel, Copilot, Microsoft 365, SharePoint, OneDrive

Review Copilot Chat management options if needed

MC1185911 (Updated) Microsoft 365 Copilot: Steer your presentation length, tone, style, and images when creating with Copilot

Copilot in Microsoft 365 will let users adjust presentation length, tone, style, and add AI-generated images in PowerPoint, starting December 15, 2025; features require a Copilot license.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-12

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Copilot, Powerpoint, Microsoft 365

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MC1194603 Manage version expiration for audio and video files in SharePoint Online

Admins can now set automated version expiration policies for audio/video files in SharePoint Online to manage storage; rollout starts mid-December 2025, requires updated PowerShell.

SharePoint Online

stayInformed

2025-12-12

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SharePoint

Install latest SharePoint Online Management Shell · Review and plan version policies for media-heavy sites

MC1062453 (Updated) Changes to how users install Microsoft 365 apps from the Microsoft 365 Copilot app

The My account portal will be replaced by a new modal in the Microsoft 365 Copilot app for self-installs; update user guidance and review self-install blocking methods.

Microsoft 365 apps

planForChange

2025-12-12

—

Microsoft 365 Apps, Copilot, Office, Project, Visio, Skype For Business, Microsoft 365

Update user communications to remove My account portal links · Refer users to updated Microsoft documentation

MC1194585 Power Platform – Power Platform Environment Settings app

On December 22, 2025, the Power Platform Environment Settings app will replace the legacy Advanced Settings as the default for managing environment settings.

Power Platform

stayInformed

2025-12-12

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Power Platform, Power Apps, Power Pages

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MC1194567 Power Platform Monitor - Announcing Copilot Studio agent health metrics and alerts in Public Preview

Power Platform Monitor adds Copilot Studio product list and Agent Alerts in public preview on Nov 28, 2025, enabling admins to view agent health metrics and set proactive alert rules.

Power Platform

stayInformed

2025-12-11

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Power Platform, Copilot

Explore new Monitor features · Set up agent alerts if desired

MC1174856 (Updated) Microsoft 365 Copilot: Session persistence enhancement for Copilot chat

Copilot chat sessions will now be preserved in the navigation pane after a prompt is submitted, allowing users to return without losing context or progress.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-11

—

Copilot, Copilot Chat

Inform helpdesk staff of chat session behavior change · Update internal documentation on Copilot chat

MC1194077 Microsoft Purview | Data Lifecycle Management - New cmdlet to remove retention holds from inactive mailboxes

Admins can now use new cmdlet parameters in Purview Data lifecycle management to remove specific retention holds from inactive Exchange mailboxes, enabling permanent deletion if no legal holds remain.

Microsoft Purview

stayInformed

2025-12-10

—

Purview, Exchange

Review compliance requirements · Obtain compliance team approval

MC1187387 (Updated) New features coming to Copilot Notebooks for Frontier users

Copilot Notebooks in Copilot apps and OneNote will get improved navigation, personalization, and AI features; rollout starts Nov 19, 2025, with features ON by default for Frontier Public users.

Microsoft 365 apps, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-10

—

Microsoft 365 Apps, Copilot, Onenote, SharePoint

Communicate changes to helpdesk staff · Update internal documentation if needed

MC1191920 (Updated) Improved People Skills Admin configuration

New admin controls for People Skills in Microsoft 365 allow disabling user experiences, configuring settings in Admin Center, and importing custom skills; rollout starts mid-December 2025.

Microsoft 365 suite, Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-10

—

Microsoft 365, Viva, Copilot

Review new People Skills admin controls after rollout · Plan for privacy/compliance needs if limiting People Skills

MC1193604 Dynamics 365 Customer Insights – Journeys – Wait on segment membership to trigger next step in a journey

Dynamics 365 Customer Insights – Journeys adds the ability to wait for a customer to join a segment before continuing a journey, available from December 19, 2025.

Dynamics 365 Apps

stayInformed

2025-12-10

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Dynamics 365 Apps, Dynamics 365

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MC1193695 Microsoft 365 Copilot: Email triage with pin, flag, archive, and mark read

Copilot now supports natural language commands in Outlook to manage emails and tasks, including pinning, flagging, archiving, and marking as read/unread for licensed users.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-10

—

Copilot, Outlook

Ensure users have Copilot licenses · Inform helpdesk/support teams

MC1193694 Viva Glint: Add a partner to Viva Glint

Admins can now onboard external partners to Viva Glint via a simplified process, enabling partner access for employee engagement surveys starting December 2025.

Microsoft Viva

stayInformed

2025-12-10

—

Viva, Entra

Create Guest User in Entra ID for partner · Add partner as Support User in Viva Glint

MC1193456 Power Platform – Power Platform Monitor Overview page and predefined alerts

Admins will get a new Power Platform Monitor Overview page with predefined alerts for high-use resources, available to all customers on December 19, 2025.

Power Platform

stayInformed

2025-12-09

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Power Platform

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MC1193413 Microsoft 365 Copilot: Data source-specific filters in search

Microsoft 365 Copilot search adds dynamic, data source-specific filters to refine results; feature enabled by default for all users, no admin action required.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-09

—

Copilot, Outlook, SharePoint, Teams

Inform helpdesk staff · Update internal documentation if needed

MC1085574 (Updated) Copilot Dashboard: Updated meeting metrics for Intelligent Recap

Copilot Dashboard and M365 Copilot Impact report now show unified meeting metrics, including Intelligent Recap data, replacing previous Copilot Assisted Hour calculations.

Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-08

—

Viva, Copilot, Teams

Review updated metrics in Copilot Dashboard and Impact report · Customize queries in Advanced Insights if needed

MC1187787 (Updated) PowerPoint adds AI-powered image editing with "Designer editor"

PowerPoint's new Designer editor adds AI-powered image editing tools directly in-app, rolling out mid-Dec 2025 to Jan 2026 for all Microsoft 365 users; no admin action needed unless managing availability.

Microsoft Copilot (Microsoft 365), Microsoft 365 Copilot Chat

stayInformed

2025-12-08

—

Copilot, Copilot Chat, Powerpoint

Review internal documentation · Inform helpdesk/support teams

MC1187676 (Updated) Learning agent in Frontier

The Learning agent is now available in Frontier for Microsoft 365 Copilot, offering personalized microlearning and Copilot tips; admins must opt-in and manage deployment via the Copilot Control Center.

Microsoft Viva, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-08

—

Viva, Copilot, Teams, Microsoft 365

Set up People Skills in tenant · Confirm Copilot licensing

MC1189002 (Updated) Microsoft 365 Copilot: Copilot chats in search results

Microsoft Copilot users can soon search and retrieve their historical Copilot chats directly in Microsoft Search, with a new 'Copilot Chats' data source in the search results.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-08

—

Copilot, Search, Microsoft 365

Inform users about new Copilot chat search capability

MC1137593 (Updated) Restrict new file creation in Office desktop apps to Cloud Locations

Admins can now enforce cloud-only file creation in Word, Excel, and PowerPoint for Windows via Group Policy, restricting 'Save As' to OneDrive, SharePoint, or third-party clouds.

Microsoft 365 apps

stayInformed

2025-12-08

—

Microsoft 365 Apps, Word, Excel, Powerpoint, OneDrive, SharePoint, Entra

Review and deploy new Group Policy if desired · Communicate change to users

MC1192256 Microsoft Purview | Data Loss Prevention- Admin units support for Microsoft SharePoint Online

Admins can now assign SharePoint Online sites to administrative units in Purview DLP, enabling more granular policy management by unit.

Microsoft Purview

stayInformed

2025-12-05

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Purview, SharePoint

Review current DLP configuration · Consider scoping policies by administrative unit

MC1184648 Viva Engage: Update storyline cover photos in Teams for iOS

Users can soon update Viva Engage storyline cover photos directly from the Teams iOS app, matching functionality already on other platforms.

Microsoft Teams, Microsoft Viva

stayInformed

2025-12-04

—

Teams, Viva

Update internal documentation if referencing storyline customization

MC1155433 (Updated) Microsoft Copilot (Microsoft 365): Use Copilot with OneDrive files in File Explorer and Activity Center

Microsoft 365 Copilot is now integrated into Windows File Explorer and OneDrive activity center, enabling users to summarize, compare, and query OneDrive files using AI features.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-04

—

Copilot, OneDrive, Windows

Inform users about new Copilot file actions

MC1191944 Microsoft Excel: Insert Data from Image retires starting July 2026

Excel's 'Insert Data from Image' feature will be removed from Windows Semi-Annual Enterprise Channel starting with Version 2602 in July 2026; enhanced version coming for other channels.

Microsoft 365 suite

planForChange

2025-12-03

2026-07-01

Microsoft 365, Excel, Copilot

Inform users of feature removal · Plan for alternative workflows

MC1191916 Message preview for channels, mentions, and reactions notifications

Teams notifications will soon show message previews for channels, mentions, and reactions on desktop and web, improving user awareness and prioritization.

Microsoft Teams

stayInformed

2025-12-03

—

Teams

Inform users about new notification previews · Share instructions to manage notification settings

MC1191616 Microsoft Secure Score: New recommendations for Microsoft Defender for Endpoint

New Secure Score recommendations for Defender for Endpoint will roll out in public preview, helping block attacks and improve endpoint protection by end of Nov 2025.

Microsoft Defender XDR

stayInformed

2025-12-03

—

Defender, Secure Score

Review new Secure Score recommendations · Complete recommended security actions

MC1183292 Microsoft Purview | Data Lifecycle Management - Introducing secure priority cleanup workflows for OneDrive/SharePoint

Admins can now override retention policies to delete OneDrive and SharePoint content early, supporting Copilot artifacts; requires new Purview roles and explicit policy setup.

Microsoft Purview

stayInformed

2025-12-02

—

Purview, OneDrive, SharePoint, Copilot

Assign at least two admins Priority Cleanup Admin and Retention Management roles · Review and configure Purview role assignments

MC1187835 (Updated) Microsoft 365 Copilot: Use Copilot with OneDrive files in macOS activity center

Copilot actions like summarizing documents and generating FAQs are now available in the OneDrive activity center on macOS for users with Copilot licenses; rollout completes by mid-December 2025.

Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-01

—

Copilot, OneDrive

Inform users about new Copilot features in OneDrive · Review Copilot licensing and availability

MC1191342 Microsoft Planner: Support for Microsoft Information Protection (MIP) content sensitivity labels

Microsoft Planner will support Microsoft Information Protection (MIP) content-level sensitivity labels, enabling encryption, usage restrictions, and visual markings by default starting December 2025.

Planner

stayInformed

2025-12-01

—

Planner, Microsoft 365, Purview

Review Purview label protection settings · Confirm RMS usage rights align with Planner

MC1181766 (Updated) Microsoft Copilot Chat: AI disclaimer updates

Admins can now customize the Copilot Chat AI disclaimer, including bold text and a custom URL, with rollout starting early December 2025 and completing mid-December 2025.

Microsoft 365 suite, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-01

—

Microsoft 365, Copilot

Review new AI Disclaimer setting in Admin Portal · Decide on configuring the setting

MC1191307 The November 2025 Windows non-security preview update is now available

November 2025 non-security preview update for Windows 11 (25H2/24H2) adds search, camera, Spotlight, and dark mode improvements; no preview update in December 2025 due to holidays.

Windows

stayInformed

2025-12-01

—

Windows

Review update contents · Install KB5070311 if applicable

MC1191203 Power Platform inventory to include agents, apps, and workflows from Microsoft 365 Copilot, agent flows, and cloud flows

Power Platform inventory adds four new resource types, enabling admins to view resources across Power Platform and Microsoft 365 Copilot in one place, starting December 1, 2025.

Power Platform

stayInformed

2025-12-01

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Power Platform, Copilot

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MC1200581 Teams admin center: Auto‑updates for Teams Android device firmware and apps will be paused during year‑end holidays

Teams Android device auto-updates via Teams admin center will pause from Dec 20, 2025 to Jan 12, 2026; manual updates remain available during this period.

Microsoft Teams

stayInformed

2025-12-19

—

Teams

Plan for paused auto-updates · Use manual updates if needed

MC1198067 Updates available for Microsoft 365 Apps for Current Channel

A new Microsoft 365 Apps update for the Current Channel will begin rolling out on December 16, 2025; admins managing updates directly can now download and deploy it.

Microsoft 365 apps

stayInformed

2025-12-16

—

Microsoft 365 Apps

Download and deploy the update if managing updates directly

MC1188227 (Updated) Microsoft Teams: Enhancements to Interpreter and multilingual meeting experience

Teams multilingual meetings now feature automatic spoken language detection, a 'Preparing' status for Interpreter, and clearer settings; available to Copilot users from mid-December 2025.

Microsoft Teams, Microsoft Copilot (Microsoft 365)

stayInformed

2025-12-16

—

Teams, Copilot

Inform users about Interpreter enhancements

MC1194479 Windows Office Hours: December 18, 2025

Join the Windows Office Hours live chat event on December 18 to get IT admin questions answered by Microsoft engineering teams; no video or live meeting required.

Windows

stayInformed

2025-12-11

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Windows, Intune, Windows Autopilot, Windows Autopatch, Windows 365

Add event to calendar · Attend Office Hours session

MC1194069 Microsoft Teams: Enhancing update efficiency through peer-to-peer (P2P) download

Teams desktop updates will use peer-to-peer Delivery Optimization for faster updates and reduced bandwidth, starting rollout in early December 2025.

Microsoft Teams

stayInformed

2025-12-10

—

Teams

Ensure network policies allow Delivery Optimization and P2P sharing · Review Delivery Optimization configuration guidance

MC1194061 IP address changes in Defender for Identity v2.x sensor communication

Defender for Identity v2.x sensors will use new IPs from the AzureAdvancedThreatProtection range starting mid-December 2025; update firewall rules if restricting outbound traffic.

Microsoft Defender XDR

stayInformed

2025-12-10

—

Defender

Review firewall/network policies for MDI · Update rules to allow AzureAdvancedThreatProtection IP range

MC1193465 Power Platform - New data request metrics for Power Platform Monitor and Power Apps Monitor for canvas apps

Two new metrics, Data Request Success Rate and Data Request Latency, will be added to Power Platform and Power Apps Monitor for canvas apps by Dec 19, 2025.

Power Platform

stayInformed

2025-12-09

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Power Platform, Power Apps

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MC1193371 How to use Microsoft Intune to update expiring Secure Boot certificates

Admins can now use Intune to deploy, manage, and monitor Secure Boot certificate updates on Windows clients, with new settings available for streamlined management.

Windows

stayInformed

2025-12-08

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Windows, Intune

Enable new Secure Boot settings in Intune · Create and assign configuration profiles for Windows devices

MC1192217 Secure Boot AMA: Ask Microsoft Anything on December 10

Microsoft hosts a live AMA on Dec 10, 2025, to guide IT admins on updating Secure Boot certificates before their June 2026 expiry, covering deployment planning and best practices.

Windows

stayInformed

2025-12-04

—

Windows

Attend AMA on Secure Boot certificates · Post questions in Tech Community

MC1192178 New Windows Autopatch reports on CVEs

A new Windows Autopatch CVEs report in Intune helps track remediated vulnerabilities, device risk status, and links to remediation steps for improved security management.

Windows

stayInformed

2025-12-04

—

Windows, Intune, Autopatch

Review the new CVEs report in Intune · Familiarize with Windows Autopatch if not already using

MC1191924 Microsoft Entra ID: Enhance protection of the authentication experience by blocking external script injection

Microsoft Entra ID sign-in will enforce a stricter Content Security Policy, blocking non-Microsoft scripts and injected code, starting rollout in October 2026 to enhance security against XSS threats.

Microsoft Entra

stayInformed

2025-12-03

2026-10-15

Entra

Test sign-in flows for compatibility · Replace tools/extensions that inject code into sign-in pages

MC1181915 Microsoft Dataverse, Dynamics 365 Apps – Storage capacity and entitlements update

On December 1, 2025, default Dataverse storage for Dynamics 365 (except Business Central) and Power Platform will increase and be pooled per tenant; no admin action needed.

Dynamics 365 Apps, Microsoft Dataverse

stayInformed

2025-12-03

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Dynamics 365 Apps, Dataverse, Power Platform, Dynamics 365

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MC1191556 Windows news you can use: November 2025

November 2025 Windows news recap covers new Ignite features, lifecycle reminders, deployment tools, and upcoming events for Windows 10/11, Windows Server, and Configuration Manager.

Windows

stayInformed

2025-12-02

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Windows, Windows Server, Configuration Manager

Read November 2025 Windows news recap · Monitor Windows IT Pro Blog