* Orphan delete is now supported for custom resources. ([#63386](https://github.com/kubernetes/kubernetes/pull/63386), [@roycaihw](https://github.com/roycaihw))

### SIG API Machinery

- The OwnerReferencesPermissionEnforcement admission plugin now checks authorization for the correct scope (namespaced or cluster-scoped) of the owner resource type. Previously, it always checked permissions at the same scope as the child resource. ([#70389](https://github.com/kubernetes/kubernetes/pull/70389), [@caesarxuchao](https://github.com/caesarxuchao))

- Kubeadm: improved the warning/error messages of `validateSupportedVersion` to include the checked resource kind name. ([#125758](https://github.com/kubernetes/kubernetes/pull/125758), [@SataQiu](https://github.com/SataQiu))

* Fix Audit-ID header key ([#48492](https://github.com/kubernetes/kubernetes/pull/48492), [@CaoShuFeng](https://github.com/CaoShuFeng))
* Checked container spec when killing container. ([#48194](https://github.com/kubernetes/kubernetes/pull/48194), [@k82cn](https://github.com/k82cn))

- IPVS: Any ipvs scheduler can now be configured. If a un-usable scheduler is configured `kube-proxy` will re-start and the logs must be checked (same as before but different log printouts). ([#114878](https://github.com/kubernetes/kubernetes/pull/114878), [@uablrek](https://github.com/uablrek))

### Feature

- A ValidatingAdmissionPolicy now has its `messageExpression` field checked against resolved types. ([#119209](https://github.com/kubernetes/kubernetes/pull/119209), [@jiahuif](https://github.com/jiahuif)) [SIG API Machinery]

* DenyEscalatingExec admission controller now checks psp HostNetwork as well as hostIPC and hostPID. hostNetwork is also checked to deny exec /attach. ([#56839](https://github.com/kubernetes/kubernetes/pull/56839), [@hzxuzhonghu](https://github.com/hzxuzhonghu))

- Forbidden sysctls for pod sharing the respective namespaces with the host are now checked when creating or updating pods without such sysctls. ([#118705](https://github.com/kubernetes/kubernetes/pull/118705), [@pacoxu](https://github.com/pacoxu))

*   Volumes are now checked for available state before attempting to attach or delete a volume in EBS. ([#55008](https://github.com/kubernetes/kubernetes/pull/55008),[ @gnufied](https://github.com/gnufied))

* Pod disruption budgets shouldn't be checked for terminal pods while evicting ([#68892](https://github.com/kubernetes/kubernetes/pull/68892), [@ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))