SKE: Patchday November Lifecycle Updates
Section titled “SKE: Patchday November Lifecycle Updates”Our upcoming Patchday on November 11, 2026 introduces operating system lifecycle updates across STACKIT Kubernetes Engine (SKE). Please review the changes below to understand how your node pools may be affected.
| Flatcar Version | Status | Effective / Expiry Date |
|---|---|---|
4757.2.3-containerd2.2.10 |
New (Preview) | Available now |
4757.2.2-containerd2.2.10 |
Supported | Active |
4757.2.1-containerd2.2.9 |
Deprecated | Expires 2026-12-09 |
4593.2.5-containerd2.1.9 |
Deprecated | Expires 2026-12-09 |
4593.2.4-containerd2.1.9 |
End of Life | Expires 2026-11-11 |
| Ubuntu Version | Status | Effective / Expiry Date |
|---|---|---|
2604.20260929.0 (26.04) |
New (Preview) | Available now |
2204.20260803.0 (22.04) |
Deprecated | Expires 2026-12-09 |
2204.20260826.0 (22.04) |
Deprecated | Expires 2026-12-09 |
2204.20261005.0 (22.04) |
Deprecated | Expires 2026-12-09 |
Important Notice: Automatic Migration
- Auto-Updates to Ubuntu 26.04: Starting November 11, 2026, automated updates will begin upgrading clusters to Ubuntu 26.04.
- Recommended Action: We strongly recommend performing manual cluster updates prior to the scheduled automatic migration date.
If you have any questions or need assistance, support is available via the Help Center.