Message Center
Notices Microsoft posts in the Microsoft 365 admin center, with the changes this installation saw between versions. Collected today · Observed across 2 reference Microsoft 365 tenants (Reference tenant (MVP); Reference tenant (Evotec)); each notice shows how many of them returned it. Verify applicability in your own tenant's Message Center.
Versions captured by this deployment. Earlier versions and notices may be missing; first observed is not first published.
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Notices and roadmap items
| ID | Title | Service | Last updated |
|---|---|---|---|
| MC1511071 | Action required: Review property changes for Exchange Online scenarios | Exchange Online | 16 Oct 2026 |
| MC1490899 | Microsoft 365: Targeted Release retirement | Exchange Online, Microsoft 365 suite, SharePoint Online | 7 Oct 2026 |
| MC1392568 | Microsoft Defender for Endpoint: Support for Amazon Linux 2 (ARM64) retiring October 31, 2026 | Microsoft Defender XDR | 23 Sep 2026 |
| MC1230889 | (Updated) Outlook for Windows report retirement in the Exchange admin center | Microsoft 365 apps | 28 Aug 2026 |
| MC1458474 | Microsoft Entra ID: Retirement of custom CSS layout and positioning properties in company branding | Microsoft Entra | 21 Aug 2026 |
Roadmap items are public; Message Center notices are what this installation's reference tenants received. Each notice links the roadmap items it names, and each roadmap item the notices that name it.