serv365.ai
13 Oct 2026
This week in Microsoft 365
27 new Message Center changes this week. The ones that matter:
New changes
Microsoft Graph: New tenant controls for retirement of non-standard file API tokens
MC1492958 ·
impact 8/10 critical
·
major
· SharePoint Online
Microsoft Planner: Introducing Local Custom Fields
MC1492955 ·
impact 4/10 medium
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major
· Planner
Microsoft Outlook: Themes by Copilot retirement
MC1492954 ·
impact 5/10 high
·
major
· Exchange Online
Microsoft Edge: Retiring legacy sign-in implementation on Windows
MC1490911 ·
impact 5/10 high
·
major
· Microsoft 365 suite
Microsoft 365: Targeted Release retirement
MC1490899 ·
impact 9/10 critical
·
major
· Exchange Online, Microsoft 365 suite
Microsoft Viva Insights: New Power BI report publishing capabilities for leaders
MC1489942 ·
impact 4/10 medium
·
major
· Microsoft Viva
Dynamics 365 Sales - Information regarding the retirement of the Dynamics 365 Sales Insights standalone add-on
MC1502773 · Dynamics 365 Apps
Microsoft Outlook for Android and iOS: Send Availability functionality restored
MC1493186 · Exchange Online
Act-by dates in the next 30 days
19 Oct
—
Microsoft Entra ID: Enhance protection of the authentication experience by blocking external script injection
26 Oct
—
Microsoft Entra ID: Retirement of custom CSS layout and positioning properties in company branding
31 Oct
—
Microsoft 365: Targeted Release retirement
02 Nov
—
(Updated) Outlook for Windows report retirement in the Exchange admin center
06 Nov
—
(Updated) Microsoft Entra ID SSPR will require registered authentication methods starting November 9, 2026
Incidents resolved this week
Some admins may receive failures creating or updating Communications Compliance policies in Microsoft Purview
MP1471821 · Microsoft Purview
Admins are unable to access the Exchange admin center (EAC)
EX1500900 · Exchange Online
Users may have been unable to access or protect content using Azure Rights Management (ARM) in Microsoft 365 services
OP1500833 · Microsoft 365 apps
Users may not see chart data when using standard light or dark themes on Power BI dashboards
PB1489649 · Power BI
Some users may be unable to access Microsoft Teams transcripts and recordings
TM1492711 · Microsoft Teams
Some users may be unable to change page distribution or review work in Microsoft OneNote and OneNote for the web
MO1480956 · Microsoft 365 suite
Reaching GA this month
Work IQ: Upload
Microsoft Teams: Events in Meet app in Teams in GCC
Microsoft Edge: v.155 - Tab organization enhancements
Dynamics 365 Project Operations: Import tasks into a project from other projects
Microsoft Copilot (Microsoft 365): Integrate the Sales Development agent with Salesforce
Microsoft Teams: QR code protection in Teams messaging
Microsoft Teams: Admins can control profanity filtering in meeting transcripts
Dynamics 365 Project Operations: Import task - Public API support
From Microsoft
Post-quantum authentication: Why organizations should start testing certificate ecosystems now
— Microsoft Security Blog
Pre-authenticated (tempauth) URLs are retiring: move to Microsoft Entra ID tokens before April 1, 2027
— Microsoft 365 Developer Blog
3 lessons from frontier AI vulnerability research
— Microsoft Security Blog
AI transformation across the infrastructure lifecycle: From supply chain to fleet operations
— Azure Blog
Microsoft named a Leader in the 2026 Gartner® Magic Quadrant™ for Global Industrial AIoT Platforms
— Azure Blog
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