- Secure serving on port 10258 to cloud-controller-manager (configurable via `--secure-port`) is now enabled. Delegated authentication and authorization are to be configured using the same flags as for aggregated API servers. Without configuration, the secure port will only allow access to `/healthz`. ([#67069](https://github.com/kubernetes/kubernetes/pull/67069), [@sttts](https...

cloud-controller-manager has been deprecated, and will be removed in a future release. Use `--secure-port` and `--bind-address` instead. ([#59582](https://github.com/kubernetes/kubernetes/pull/59582), [@sttts](https://github.com/sttts))

* The ability to use the insecure flags `--insecure-bind-address`, `--insecure-port` in the apiserver has been deprecated and will be removed in a future release. Use `--secure-port` and `--bind-address` instead. ([#59018](https://github.com/kubernetes/kubernetes/pull/59018),...

* kubeadm: kubelets in kubeadm clusters now disable the readonly port (10255). If you're relying on unauthenticated access to the readonly port, please switch to using the secure port (10250). Instead, you can now use ServiceAccount tokens when talking to the secure port, which will make it easier to get access to, for example, the `/metrics` endpoint of the kubelet, securely. ([#64187](https://github.com/kubernetes/kubernetes/pull/64187), [@luxas](https://github.com/luxas))...

#### kubectl:

- GCERegionalPersistentDisk feature is GA now! ([#70716](https://github.com/kubernetes/kubernetes/pull/70716), [@jingxu97](https://github.com/jingxu97))

    - [Container Storage Interface graduations](#container-storage-interface-graduations)
    - [SIG Windows development tools](#sig-windows-development-tools)
    - [Deploy a more secure control plane with kubeadm](#deploy-a-more-secure-control-plane-with-kubeadm)
    - [etcd moves to version 3.5.0](#etcd-moves-to-version-350)
    - [Kubernetes Node system swap support](#kubernetes-node-system-swap-support)

### Feature

- Kubernetes is now built with Golang 1.16.9 (#105672, @cpanato) [SIG Cloud Provider, Instrumentation, Release and Testing]

### Failing Test

- Backport: e2e.test now uses the secure port to retrieve metrics data to ensure compatibility with 1.21 and 1.22 (for upgrade tests) (#104328, @pohly) [SIG API Machinery, Instrumentation, Storage and Testing]

### Bug or Regression

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- Added `kubeadm alpha certs certificate-key` command to generate secure random key to use on `kubeadm init --experimental-upload-certs` ([#77848](https://github.com/kubernetes/kubernetes/pull/77848), [@yagonobre](https://github.com/yagonobre))

### CVE-2022-3294: Node address isn't always verified when proxying

A security issue was discovered in Kubernetes where users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can to modify Node objects and send requests proxying through them.