- Fixed documentation for the `apiserver_admission_webhook_fail_open_count` and `apiserver_admission_webhook_request_total` metrics. The `type` label can have a value of "admit", not "mutating". ([#127898](https://github.com/kubernetes/kubernetes/pull/127898), [@modulitos](https://github.com/modulitos))

* Remove extensions/v1beta1 Jobs resource, and job/v1beta1 generator. ([#38614](https://github.com/kubernetes/kubernetes/pull/38614), [@soltysh](https://github.com/soltysh))
* Admit critical pods in the kubelet ([#38836](https://github.com/kubernetes/kubernetes/pull/38836), [@bprashanth](https://github.com/bprashanth))

* kubeadm: Implementing the certificates phase fully ([#48196](https://github.com/kubernetes/kubernetes/pull/48196), [@fabriziopandini](https://github.com/fabriziopandini))
* Added case on 'terminated-but-not-yet-deleted' for Admit. ([#48322](https://github.com/kubernetes/kubernetes/pull/48322), [@k82cn](https://github.com/k82cn))

  * PodSecurityPolicy admission sets `podsecuritypolicy.admission.k8s.io/admit-policy` and `podsecuritypolicy.admission.k8s.io/validate-policy` annotations containing the name of the policy that allowed a pod to be admitted. (PodSecurityPolicy also gained the ability to [limit hostPath volume mounts to be read-only](https://...