- Added env variables to control CPU requests of kube-controller-manager and kube-scheduler. ([#68823](https://github.com/kubernetes/kubernetes/pull/68823), [@loburm](https://github.com/loburm))

* Fix adding disks to more than one scsi adapter. ([#42422](https://github.com/kubernetes/kubernetes/pull/42422), [@kerneltime](https://github.com/kerneltime))
* PodSecurityPolicy authorization is correctly enforced by the PodSecurityPolicy admission plugin. ([#43489](https://github.com/kubernetes/kubernetes/pull/43489), [@liggitt](https://github.com/liggitt))

#### Security
* Features:

  * Permission to use a PodSecurityPolicy can now be granted within a single namespace by allowing the use verb on the podsecuritypolicies resource within the namespace. ([#42360](https://github.com/kubernetes/kubernetes/pull/42360), [@liggitt](https://github.com/liggitt))

* Fix kube-proxy PodSecurityPolicy binding on GCE & GKE. This was only an issue when running kube-proxy as a DaemonSet, with PodSecurityPolicy enabled. ([#72761](https://github.com/kubernetes/kubernetes/pull/72761), [@tallclair](https://github.com/tallclair))

this flag, you must remove it from your launch config before upgrading to 1.11. ([#58968](https://github.com/kubernetes/kubernetes/pull/58968), [@deads2k](https://github.com/deads2k))

* The `PodSecurityPolicy` API has been moved to the `policy/v1beta1` API group. The `PodSecurityPolicy` API in the `extensions/v1beta1` API group is deprecated and will be removed in a future release. Authorizations for using pod security policy resources should change to reference the `policy` API group...

- Metrics Server will use Addon Manager 1.8.3 ([#103541](https://github.com/kubernetes/kubernetes/pull/103541), [@jbartosik](https://github.com/jbartosik)) [SIG Cloud Provider and Instrumentation]
- Output for `kubectl describe podsecuritypolicy` is now kind specific and cleaner ([#101436](https://github.com/kubernetes/kubernetes/pull/101436), [@KnVerey](https://github.com/KnVerey))

- Fixed a regression which prevented pods with `docker/default` seccomp annotations from being created in 1.19 if a PodSecurityPolicy was in place which did not allow `runtime/default` seccomp profiles. ([#95985](https://github.com/kubernetes/kubernetes/pull/95985), [@saschagrunert](https://github.com/saschagrunert)) [SIG Auth]

### PodSecurity graduates to Beta

[PodSecurity](https://kubernetes.io/docs/concepts/security/pod-security-admission/) moves to Beta.
`PodSecurity` replaces the deprecated `PodSecurityPolicy` admission controller.
`PodSecurity` is an admission controller that enforces Pod Security Standards on Pods in a Namespace based on specific namespace labels that set the enforcement level.

- Fixed a regression which prevented pods with `docker/default` seccomp annotations from being created in 1.19 if a PodSecurityPolicy was in place which did not allow `runtime/default` seccomp profiles. ([#95990](https://github.com/kubernetes/kubernetes/pull/95990), [@saschagrunert](https://github.com/saschagrunert)) [SIG Auth]