DKP 2.5.1 Kubernetes major updates and deprecations

Before upgrading, we strongly recommend verifying your current setup against the information on this page and reading more about Kubernetes' new features in Kubernetes urgent upgrade notes.

Deprecated API Services

With this version, Kubernetes stopped serving several API versions for CronJob, EndpointSlice, Event, HorizontalPodAutoscaler, PodDisruptionBudget, PodSecurityPolicy, and RuntimeClass services. For more information on the deprecated API versions for each of these services, refer to https://kubernetes.io/docs/reference/using-api/deprecation-guide/#v1-25.

New OCI Image Registry

DKP now uses the upstream registry.k8s.io registry instead of the previous k8s.gcr.io registry for all new and upgraded clusters.

Ensure you add registry.k8s.io to any firewall or proxy allowlists.