Note
- Original publish date: January 13, 2026
- KB ID: 5076118
Windows Server containers
As part of servicing each month, we publish updated Windows Server Base OS container images. With these updates, you can automate building updated container images or manually update them by pulling the latest version. Windows Server containers do not have a servicing stack and do not support in-place updates like Windows Server or Windows client. Therefore, every month we rebuild the Windows Server Base OS container images with the updates and publish the updated container images.
For more information on update best practices, see Update Windows Server containers.
Available Windows Server container images
Important: Because of a required change in how the Windows Server Container images are generated for Windows Server 2025, there is no delta container image for the January 2026 release. Instead of the delta container image, the release for January 2026 is a new full container image that replaces the original release layer. Going forward, delta releases will use the January 2026 container as the new baseline. Therefore, there may be a one-time increase in container pull time.
| Container | Version | KB | Architecture | Languages |
|---|---|---|---|---|
| Windows Server 2025 Server Core Container Windows Server Core |
10.0.26100.32224 | Cumulative LCU: KB507339 SSU version 10.0.26100.32131 (included in LCU) |
x64 | en-us |
| Windows Server 2025 Nano Server Container Nano Server |
10.0.26100.32224 | Cumulative LCU: KB507339 SSU version 10.0.26100.32131 (included in LCU) |
x64 | en-us |
| Windows Server 2025 Container Windows Server |
10.0.26100.32224 | Cumulative LCU: KB507339 SSU version 10.0.26100.32131 (included in LCU) |
x64 | en-us |
End of support for Windows Server 2025
Support for Windows Server 2025 will end in October 2034
After October 10, 2034, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows Server 2025. We recommend that you upgrade to a later version of Windows Server.
References
Update Windows Server containers
For information on .NET Framework support, see dotnet/framework.