cluster.ninja

Kubernetes release clock · updated 1 Nov 2026

Know your cluster's clock.

Which Kubernetes versions still get patches, when each one runs out, and which APIs disappear when you upgrade. Straight from the project's own release data, checked every day.

Latest1.37.228 Oct 2026 Oldest supported1.35EOL 28 Feb 2027 In development1.38v1.38.0-alpha.3Next patch day10 Nov 2026planned

Support windows

All versions since 1.16 →

Is my version still supported?

Type what kubectl version prints for the server, such as 1.33.4 or v1.31.

Supported right now

1.37Supported
Latest patch
1.37.2
Maintenance from
28 Aug 2027
End of life
28 Oct 2027
Time left
12 months

Garhwal
1.36Supported
Latest patch
1.36.6
Maintenance from
28 Apr 2027
End of life
28 Jun 2027
Time left
8 months

ハル (Haru)
1.35Supported
Latest patch
1.35.10
Maintenance from
28 Dec 2026
End of life
28 Feb 2027
Time left
4 months

Timbernetes (The World Tree Release)

APIs removed, release by release

An API version that is removed is no longer served: manifests and clients that still use it fail after the upgrade. These are the releases that removed APIs that were on by default.

  1. 1.322 kinds FlowSchema, PriorityLevelConfiguration
  2. 1.292 kinds FlowSchema, PriorityLevelConfiguration
  3. 1.271 kind CSIStorageCapacity
  4. 1.263 kinds HorizontalPodAutoscaler, FlowSchema, PriorityLevelConfiguration
  5. 1.258 kinds HorizontalPodAutoscaler, CronJob, EndpointSlice, Event, RuntimeClass, Eviction, PodDisruptionBudget, PodSecurityPolicy
  6. 1.2225 kinds AdmissionReview, MutatingWebhookConfiguration, ValidatingWebhookConfiguration, ConversionReview, CustomResourceDefinition, APIService, TokenReview, LocalSubjectAccessReview, SelfSubjectAccessReview, SelfSubjectRulesReview, SubjectAccessReview, CertificateSigningRequest, Lease, Ingress, IngressClass, ClusterRole, ClusterRoleBinding, Role, RoleBinding, PriorityClass, CSIDriver, CSINode, StorageClass, VolumeAttachment
  7. 1.1619 kinds ControllerRevision, DaemonSet, Deployment, DeploymentRollback, ReplicaSet, Scale, StatefulSet, NetworkPolicy, PodSecurityPolicy

Compare any two versions →

Tools

Manifest checkPaste YAML; see every apiVersion that is deprecated or gone in your target release. Runs in your browser. Upgrade plannerFrom X to Y: every hop, every removal, the order to upgrade components. Version skewWhich kubelet, kube-proxy and kubectl versions may run against your API server. EKS · GKE · AKSHow long the big managed services keep each version, next to upstream.

Upstream vs managed: end of standard support

VersionUpstream EOLEKSGKEAKS
1.3728 Oct 2027 1 Dec 202722 Dec 202731 Oct 2027
1.3628 Jun 2027 2 Aug 20279 Aug 202730 Jun 2027
1.3528 Feb 2027 27 Mar 202711 Apr 202731 Mar 2027

Standard support only; all three offer paid or opt-in extended support beyond it. Dates as published by each provider, checked 1 Nov 2026. Details and extended support →