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by stackskipton 687 days ago
They are not using Docker for container runtime. It was deprecated in Kubernetes 1.20 and removed in 1.24 with almost everyone switching to containerd. Currently supported Kubernetes versions are 1.28/1.29/1.30. 1.27 is available as LTS from a few providers.

EDIT: Coworker mentioned there is a cri that lets you to continue to use Docker Engine in Kubernetes but I've never run across it.