serv365.ai 10 Nov 2026

This week in Microsoft 365

32 new Message Center changes this week. The ones that matter:

New changes

Action may be required: Claude models in Microsoft Copilot will be enabled by default in the UK
MC1546435 · impact 8/10 critical · major · Microsoft 365 Copilot Chat
Microsoft Teams: Retirement of off-network invitations to Teams Free
MC1546409 · impact 4/10 medium · major · Microsoft Teams
Microsoft Purview: Retirement of select DSPM partner integrations
MC1545691 · impact 5/10 high · major · Microsoft Purview
Microsoft 365 Copilot: Changes to custom organizational data in MODS for Workforce Insights
MC1542066 · impact 8/10 critical · major · Microsoft 365 suite
Microsoft SharePoint Online and OneDrive for the web: Updated search experience with Copilot Search
MC1540513 · impact 7/10 high · major · SharePoint Online, Microsoft OneDrive
Action required: Update permissions for Exchange Online Admin API
MC1540345 · impact 5/10 high · major · Exchange Online
Microsoft Copilot Chat: Planner Agent task assignment, catch-up, and Copilot memory integration
MC1539002 · impact 8/10 critical · major · Planner
Microsoft 365 admin center: Project usage report retirement
MC1539001 · impact 9/10 critical · major · Project for the web

Act-by dates in the next 30 days

15 Nov — Action required: Review property changes for Exchange Online scenarios
17 Nov — Database Hub in Fabric: Default enablement and admin opt-out
18 Nov — Microsoft 365 Copilot: Changes to custom organizational data in MODS for Workforce Insights
30 Nov — Microsoft 365 Copilot and Power Apps: Retirement of App Builder agent and vibe.powerapps.com
04 Dec — Microsoft Copilot Chat: Planner Agent task assignment, catch-up, and Copilot memory integration
04 Dec — Microsoft 365 admin center: Project usage report retirement
08 Dec — Power BI retiring standalone Copilot experiences (preview)
09 Dec — Action may be required: Claude models in Microsoft Copilot will be enabled by default in the UK

Incidents resolved this week

Some users may be intermittently unable to send email messages to Outlook.com, Hotmail.com, or Live.com email addresses
EX1545193 · Exchange Online
Some users may have experienced errors or failures when accessing their mailbox via Outlook on the web
EX1545302 · Exchange Online
Users may not be able to access Class Notebooks in Microsoft OneNote
MO1540560 · Microsoft 365 suite
Users may be unable to view recent portions of their conversation history with Microsoft 365 Copilot Chat
CW1530567 · Microsoft 365 Copilot Chat
Some users may be unable to load chat history or previously pinned chats, and can't pin chats in Microsoft 365 Copilot
CW1530649 · Microsoft 365 Copilot Chat
Users may see Microsoft Teams on the web displayed in English
TM1489031 · Microsoft Teams

Reaching GA this month

Microsoft Viva: Import HRIS data in Viva Glint from Microsoft Admin Center
OneNote: Summary and Q&A in OneNote Mobile with Copilot (Android)
OneNote: Summary and Q&A in OneNote Mobile with Copilot (Iphone)
Microsoft Teams: Events in Meet app in Teams in GCC High and DoD
OneNote: Multimodal capture in Copilot Notebooks (Windows)
Microsoft Copilot (Microsoft 365): App Blocks
Microsoft 365: Frontier expands to public previews in Teams, Outlook, OneDrive, and SharePoint
Microsoft 365 app: Inventory - Update Repair

From Microsoft

FORGE Lab uses agentic tools to identify memory safety issues in Rust — Microsoft Security Blog
ARTEX abuse expands as cybercriminals target financial sector — Microsoft Security Blog
Building the next generation of multimodal AI experiences with fal in Microsoft Foundry — Azure Blog
Work IQ: SharePoint Tools — Microsoft 365 Developer Blog
Threat actors use agentic AI tooling to find and abuse exposed secrets — Microsoft Security Blog
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