* GCP: allow a master to not include a metadata concealment firewall rule (if it's not running the metadata proxy). ([#58104](https://github.com/kubernetes/kubernetes/pull/58104), [@ihmccreery](https://github.com/ihmccreery))

  - [Changelog since v1.20.10](#changelog-since-v12010)
  - [Important Security Information](#important-security-information)
    - [CVE-2021-25741: Symlink Exchange Can Allow Host Filesystem Access](#cve-2021-25741-symlink-exchange-can-allow-host-filesystem-access)
  - [Changes by Kind](#changes-by-kind-4)
    - [Bug or Regression](#bug-or-regression-4)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake-1)

    * ACTION REQUIRED: The deprecated Kubelet flag `--allow-privileged` has been removed. Remove any use of `--allow-privileged` from your kubelet scripts or manifests.

### Other notable changes

* StatefulSet: Set hostname/subdomain fields on new Pods in addition to the deprecated annotations, to allow mitigation of Pod DNS issues upon upgrading to Kubernetes v1.7.x. ([#50942](https://github.com/kubernetes/kubernetes/pull/50942), [@enisoc](https://github.com/enisoc))
* Azure: Allow VNet to be in a separate Resource Group. ([#49725](https://github.com/kubernetes/kubernetes/pull/49725), [@sylr](https://github.com/sylr))

- Allow to monitor client-go DNS resolver latencies via `rest_client_dns_resolution_duration_seconds` Prometheus metric. ([#115357](https://github.com/kubernetes/kubernetes/pull/115357), [@mfojtik](https://github.com/mfojtik))

    - [Skip Volume Ownership change graduates to GA](#skip-volume-ownership-change-graduates-to-ga)
    - [Allow CSI drivers to opt-in to volume ownership and permission change graduates to GA](#allow-csi-drivers-to-opt-in-to-volume-ownership-and-permission-change-graduates-to-ga)
    - [PodSecurity graduates to Beta](#podsecurity-graduates-to-beta)

  - [Changelog since v1.22.1](#changelog-since-v1221)
  - [Important Security Information](#important-security-information-2)
    - [CVE-2021-25741: Symlink Exchange Can Allow Host Filesystem Access](#cve-2021-25741-symlink-exchange-can-allow-host-filesystem-access)
  - [Changes by Kind](#changes-by-kind-14)
    - [Feature](#feature-7)
    - [Bug or Regression](#bug-or-regression-14)
  - [Dependencies](#dependencies-15)

 - Fixes a regression in 1.17 that dropped cache-control headers on API requests ([#90468](https://github.com/kubernetes/kubernetes/pull/90468), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Testing]
 - Provides a fix to allow a cluster in a private Azure cloud to authenticate to ACR in the same cloud. ([#90425](https://github.com/kubernetes/kubernetes/pull/90425), [@DavidParks8](https://github.com/DavidParks8)) [SIG Cloud Provider]

- Allow-list of metric labels can be configured by supplying a manifest using the --allow-metric-labels-manifest flag ([#118299](https://github.com/kubernetes/kubernetes/pull/118299), [@rexagod](https://github.com/rexagod)) [SIG Architecture and Instrumentation]

 - Provides a fix to allow a cluster in a private Azure cloud to authenticate to ACR in the same cloud. ([#90425](https://github.com/kubernetes/kubernetes/pull/90425), [@DavidParks8](https://github.com/DavidParks8)) [SIG Cloud Provider]