| MC1529467 |
(Updated) Microsoft Windows: Updates to address compromised eMudhra certificate authority keys
Microsoft 365 suite
|
Plan for change |
11 Nov 2026 |
—
|
| MC1546411 |
Retirement of Viva Insights (personal insights) and Viva Learning usage reports
3 · Medium
Microsoft 365 suite
|
Plan for change |
10 Nov 2026 |
—
|
| MC1542066 |
Microsoft 365 Copilot: Changes to custom organizational data in MODS for Workforce Insights
8 · Critical
Microsoft 365 suite
Major
|
Plan for change |
06 Nov 2026 |
18 Nov 2026
|
| MC1540526 |
Microsoft Online Services Subprocessor Disclosure Update
Microsoft 365 suite
|
Stay informed |
06 Nov 2026 |
—
|
| MC1538999 |
Microsoft 365 Copilot: Copilot connectors in Work IQ APIs
Microsoft 365 suite
|
Stay informed |
05 Nov 2026 |
—
|
| MC1536057 |
Increasing user exception limit to 10,000 for Standard-Deferred release preferences
Microsoft 365 suite
|
Stay informed |
03 Nov 2026 |
—
|
| MC1187682 |
(Updated) Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding
Microsoft 365 suite
|
Stay informed |
30 Oct 2026 |
—
|
| MC1529472 |
Frontier expands to include public previews in Microsoft Teams, new Outlook for Windows, OneDrive, and SharePoint
Microsoft 365 suite
|
Stay informed |
28 Oct 2026 |
—
|
| MC1069563 |
Microsoft 365 admin center: Usage reports to manage metered consumption costs for Microsoft 365 Copilot Chat (preview)
Microsoft 365 suite
|
Stay informed |
28 Oct 2026 |
—
|
| MC1528009 |
Microsoft 365 admin center: Retirement of selected Search Analytics capabilities
5 · High
Microsoft 365 suite
Major
|
Plan for change |
27 Oct 2026 |
—
|
| MC1510951 |
(Updated) Windows updates are available for 2026 time zone changes in Canada
5 · High
Exchange OnlineMicrosoft 365 suiteDynamics 365 AppsPower BI
Major
|
Prevent or fix issue |
27 Oct 2026 |
—
|
| MC1526676 |
Microsoft 365 admin center: Manage authoritative sources for Microsoft 365 Copilot Search
Microsoft 365 suite
|
Stay informed |
26 Oct 2026 |
—
|
| MC1472028 |
(Updated) Outlook: Change the organizer of meetings
Exchange OnlineMicrosoft 365 suite
|
Stay informed |
26 Oct 2026 |
—
|
| MC1526661 |
Microsoft 365 Apps: Cloud Update - Export Improvements
Microsoft 365 suiteMicrosoft 365 apps
|
Plan for change |
26 Oct 2026 |
—
|
| MC1492959 |
(Updated) Audio Overview Updates
Microsoft 365 suiteMicrosoft 365 apps
|
Stay informed |
26 Oct 2026 |
—
|
| MC1526468 |
Update to MC1510951: Canada 2026 time zone changes — Microsoft 365 impact and required admin actions
9 · Critical
Microsoft 365 suite
high
|
Prevent or fix issue |
26 Oct 2026 |
01 Nov 2026
|
| MC1521616 |
Microsoft Graph APIs for Copilot cost management
Microsoft 365 suite
|
Stay informed |
22 Oct 2026 |
—
|
| MC1520901 |
Insights Agent V2 Frontier
Microsoft 365 suite
|
Plan for change |
22 Oct 2026 |
—
|
| MC1518032 |
Microsoft 365 apps: Introducing Update Repair in Inventory
Microsoft 365 suiteMicrosoft 365 apps
|
Stay informed |
20 Oct 2026 |
—
|
| MC1515930 |
Cowork browser use setting renamed to Browser use in Microsoft Copilot
Microsoft 365 suite
|
Stay informed |
19 Oct 2026 |
—
|
| MC1506727 |
Microsoft Agent 365: Expanded access to Microsoft agent usage and activity insights in Microsoft 365 admin center
Microsoft 365 suite
|
Stay informed |
19 Oct 2026 |
—
|
| MC1509797 |
Support for Office LTSC 2021 and additional apps ended on October 13, 2026
6 · High
Microsoft 365 suiteMicrosoft 365 appsProject for the web
high
|
Plan for change |
15 Oct 2026 |
—
|
| MC1509789 |
Microsoft Edge: Browser-native XSLT will be disabled by default
3 · Medium
Microsoft 365 suite
|
Plan for change |
15 Oct 2026 |
—
|
| MC1440972 |
(Updated) Microsoft Edge: Upgraded Copilot new tab page
Microsoft 365 suite
|
Stay informed |
13 Oct 2026 |
—
|
| MC1505610 |
Public CDN is becoming optional during Brand Center setup
Microsoft 365 suiteSharePoint Online
|
Stay informed |
12 Oct 2026 |
—
|
| MC1387526 |
Microsoft 365 Backup: Full workload backup for SharePoint, OneDrive, and Exchange
Microsoft 365 suite
|
Plan for change |
12 Oct 2026 |
—
|
| MC1490911 |
Microsoft Edge: Retiring legacy sign-in implementation on Windows
5 · High
Microsoft 365 suite
Major
|
Plan for change |
07 Oct 2026 |
—
|
| MC1490899 |
Microsoft 365: Targeted Release retirement
8 · Critical
Exchange OnlineMicrosoft 365 suiteSharePoint OnlineMicrosoft OneDriveMicrosoft Teams
Major
|
Plan for change |
07 Oct 2026 |
31 Oct 2026
|
| MC1454378 |
(Updated) Microsoft 365: The Next Generation of File & Folder Sharing
Microsoft 365 suiteSharePoint OnlineMicrosoft OneDriveMicrosoft 365 apps
|
Plan for change |
07 Oct 2026 |
—
|
| MC1438571 |
(Updated) Default visibility of additional profile card properties in Microsoft 365 profile cards
4 · Medium
Microsoft 365 suite
Major
|
Plan for change |
07 Oct 2026 |
—
|
| MC1489931 |
Microsoft 365 Backup: Activity Logs
Microsoft 365 suite
|
Stay informed |
06 Oct 2026 |
—
|
| MC1480873 |
(Updated) Connected Platforms - Agent 365 extends observability to third-party agents
Microsoft 365 suite
|
Plan for change |
06 Oct 2026 |
—
|
| MC1484007 |
Updated Copilot in Microsoft Edge Experience
Microsoft 365 suite
|
Stay informed |
30 Sep 2026 |
—
|
| MC1477184 |
(Updated) Microsoft 365 admin center: Agent Registry consolidates duplicate agent entries and adds version history
3 · Medium
Microsoft 365 suite
|
Prevent or fix issue |
29 Sep 2026 |
—
|
| MC1454397 |
(Updated) Updates to Tenant External Recipient Rate Limit (TERRL) Quotas for New, Trial, and Education Tenants
Microsoft 365 suite
|
Stay informed |
29 Sep 2026 |
—
|
| MC1481309 |
Microsoft Entra ID: Enhance protection of the authentication experience by blocking external script injection
5 · High
Microsoft EntraMicrosoft 365 suite
|
Plan for change |
28 Sep 2026 |
19 Oct 2026
|
| MC1478969 |
Deprecation of Citrix mVPN Support in Microsoft Edge for Android
3 · Medium
Microsoft 365 suite
|
Plan for change |
24 Sep 2026 |
—
|
| MC1478957 |
Microsoft 365 profile card: View dotted-line managers in the organization panel
Microsoft 365 suite
|
Stay informed |
24 Sep 2026 |
—
|
| MC1478946 |
Microsoft 365 Apps: Cloud Update - Extended rollback support for Monthly Enterprise Channel
Microsoft 365 suiteMicrosoft 365 apps
|
Stay informed |
24 Sep 2026 |
—
|
| MC1477996 |
Retirement of Viva Insights (personal insights) and Viva Learning usage reports
3 · Medium
Microsoft 365 suite
|
Plan for change |
23 Sep 2026 |
—
|
| MC1477186 |
Microsoft Agent 365: Simplified Agent 365 CLI setup experience
4 · Medium
Microsoft 365 suite
Major
|
Plan for change |
22 Sep 2026 |
—
|
| MC1290821 |
(Updated) eSignature for Microsoft 365 - Recipient groups
Microsoft 365 suiteSharePoint Online
|
Stay informed |
21 Sep 2026 |
—
|
| MC1474455 |
In-app browsing in Copilot app
Microsoft 365 suite
|
Plan for change |
21 Sep 2026 |
—
|
| MC1474111 |
Retirement of Microsoft 365 Companion apps
5 · High
Microsoft 365 suite
Major
|
Plan for change |
18 Sep 2026 |
—
|
| MC1473151 |
Microsoft Edge: IE mode is supported through at least the end of 2029, plan your migration
Microsoft 365 suite
|
Plan for change |
17 Sep 2026 |
—
|
| MC1458480 |
(Updated) Microsoft Edge: Security Update Alerts in the Edge management service
Microsoft 365 suite
|
Stay informed |
17 Sep 2026 |
—
|
| MC1473148 |
Microsoft 365 Usage Reporting Updates (Microsoft Browser and Visio)
Microsoft 365 suite
|
Plan for change |
16 Sep 2026 |
—
|
| MC1472429 |
Support for Office LTSC 2021, and additional apps will end on October 13, 2026
8 · Critical
Microsoft 365 suite
Major
|
Plan for change |
15 Sep 2026 |
13 Oct 2026
|
| MC1470426 |
Data Privacy: Microsoft Online Services Subprocessor Disclosure
Microsoft 365 suite
|
Stay informed |
11 Sep 2026 |
—
|
| MC1469962 |
Change in sender email address for Copilot emails
Microsoft 365 suiteMicrosoft 365 Copilot Chat
|
Stay informed |
09 Sep 2026 |
—
|
