MC1458474: Microsoft Entra ID: Retirement of custom CSS layout and positioning properties in company branding
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Week 43 · 19 Oct – 25 Oct 2026 UTC · assess the changes, then plan the next dates.
Message CenterMicrosoft Entra
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Message CenterDefender
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Message CenterExchange / OneDrive / SharePoint / Teams
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Message CenterMicrosoft 365 Apps
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Action due in 8 days
Message CenterMicrosoft Entra
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Action due in 12 days
Dates.NET / Azure / PowerShell / Windows5 source records
End of servicing
.NET 8 (LTS); Azure IoT Edge, Version 1.5 (LTS); PowerShell, PowerShell 7.4 (LTS); Windows 11 Enterprise and Education, Version 23H2; Windows 11 IoT Enterprise, Version 23H2
End of servicing in 16 days
Dates.NET2 source records
DatesAzure / PowerShell2 source records
Announced retirements
Retirement: Support for PowerShell 7.4 ends on November 10, 2026; Retirement: Support for .NET 8 and .NET 9 ends on November 10, 2026—upgrade your apps to .NET 10
Retirement in 16 days
DatesAzure
DatesPowerShell2 source records
End of support
Ends with .NET 9.0 and .NET 8.0
End of support in 16 days
DatesWindows
Message CenterExchange
Message Center action date
Action due in 21 days
DatesGoogle Gemini5 source records
Model retirement
End of support in 23 days
Message CenterPower BI
Message Center action date
Action due in 23 days
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