All add-ons · CNI
Is Cilium compatible with Kubernetes 1.37?
eBPF networking, observability, and security for Kubernetes. Each stable docs version lists the Kubernetes minors that branch e2e-tests.
e2e tested and guaranteed on the stable 1.20 docs. 1.31, 1.32, and 1.37 are not listed.
Cilium says every Kubernetes version it lists is e2e tested and guaranteed compatible. Older and newer minors are not listed and depend on Kubernetes forward and backward compatibility. Stable 1.20 lists 1.33–1.36. The 1.19 docs list 1.32–1.35. The 1.18 docs list 1.30–1.33.
Version grid
| Cilium | 1.31 | 1.32 | 1.33 | 1.34 | 1.35 | 1.36 | 1.37 |
|---|---|---|---|---|---|---|---|
| 1.20 · current | Not in the published matrix | Not in the published matrix | Supported | Supported | Supported | Supported | Not in the published matrix |
| 1.19 | Not in the published matrix | Supported | Supported | Supported | Supported | Not in the published matrix | Not in the published matrix |
| 1.18 | Supported | Supported | Supported | Not in the published matrix | Not in the published matrix | Not in the published matrix | Not in the published matrix |
Empty-looking “not in the published matrix” cells were not listed by the project. They are not a guess that the combination fails.
Notes
A release branch keeps the Kubernetes versions it tested when the branch was cut. The CRD carries io.cilium.k8s.crd.schema.version. Helm chart name in the repository is cilium.
Sources
- Kubernetes Compatibility (stable 1.20) (opens in a new tab)
- Kubernetes Compatibility (1.19) (opens in a new tab)
- Kubernetes Compatibility (1.18) (opens in a new tab)
Last checked 2026-11-15. Latest GitHub release v1.20.4 (opens in a new tab) (2026-10-23).
Project site: https://cilium.io (opens in a new tab)
Managed Kubernetes end of support
Addon compatibility is not the same as the platform’s support window. End-of-support dates for the managed services are on EOL Radar: Amazon EKS (opens in a new tab), Azure AKS (opens in a new tab), Google Kubernetes Engine (opens in a new tab).