### External credential providers

- The following features are unconditionally...

Requests to a deprecated API are returned with a warning containing a target removal release and any replacement API.
Warnings can also be returned by [admission webhooks](https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/#admissionreview-response-warning),

**Note**: This only impacts the cluster if the ServiceAccount admission plugin is used (most cluster should have this on by default as recommended in https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#serviceaccount), the `kubernetes.io/enforce-mountable-secrets` annotation is used by a service account (this annotation is not added by default), and Pods are using ephemeral containers.

**Affected Versions**:

- Kube-apiserver: Added Alpha features to allow API server authz to check the context of requests:
  - The `AuthorizeWithSelectors` feature gate enables including field and label selector information from requests in webhook authorization calls.

* Default values differ between the Kubelet's componentconfig (config file) API and the Kubelet's command line. Be sure to review the default values when migrating to using a config file. For example, the authz mode is set to "AlwaysAllow" if you rely on the command line, but defaults to the more secure "Webhook" mode if you load config from a file. ([#59666](https://github.com/kubernetes/kubernetes/pull/59666), [@mtaufen](https://github.com/mtaufen))

* delegated authn/z: optionally opt-out of mandatory authn/authz kubeconfig ([#67545](https://github.com/kubernetes/kubernetes/pull/67545), [@sttts](https://github.com/sttts))

* Ensure the KUBE-MARK-DROP chain in kube-proxy mode=ipvs. The...

**Note**: This only impacts the cluster if the ServiceAccount admission plugin is used (most cluster should have this on by default as recommended in https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#serviceaccount), the `kubernetes.io/enforce-mountable-secrets` annotation is used by a service account (this annotation is not added by default), and Pods are using ephemeral containers.

**Affected Versions**:

### CronJob controller v2 is available through feature gate