A new [v1beta3 configuration API](https://github.com/kubernetes/kubeadm/issues/1796). It [iterates over v1beta2](https://pkg.go.dev/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta3) by adding some long requested features and deprecating some existing ones. The `V1beta3` is now the preferred API version; the `v1beta2` API also remains available and is not yet deprecated.