- Resolves an issue using `kubectl certificate approve/deny` against a server serving the v1 CSR API ([#91691](https://github.com/kubernetes/kubernetes/pull/91691), [@liggitt](https://github.com/liggitt)) [SIG Auth and CLI]

### Other (Cleanup or Flake)

- Update CNI to v0.8.6

- Kubeadm: deprecate the "--csr-only" and "--csr-dir" flags of the "kubeadm init phase certs" subcommands. Please use "kubeadm alpha certs generate-csr" instead. This new command allows you to generate new private keys and certificate signing requests for all the control-plane components, so that the certificates can be signed by an external...

* `kubectl certificate approve|deny` will not modify an already approved or denied CSR unless the `--force` flag is provided. ([#61971](https://github.com/kubernetes/kubernetes/pull/61971), [@smarterclayton](https://github.com/smarterclayton))

- kubeadm: Fixed the machine readability of `kubeadm token create --print-join-command` ([#75487](https://github.com/kubernetes/kubernetes/pull/75487), [@displague](https://github.com/displague))

- Replaced deprecated package `k8s.io/utils/pointer` with `k8s.io/utils/ptr` for the csr. ([#132699](https://github.com/kubernetes/kubernetes/pull/132699), [@PatrickLaabs](https://github.com/PatrickLaabs)) [SIG API Machinery and Auth]

## Action Required

### Certificates API
* Users of the alpha certificates API should delete v1alpha1 CSRs from the API before upgrading and recreate them as v1beta1 CSR after upgrading. ([#39772](https://github.com/kubernetes/kubernetes/pull/39772), [@mikedanese](https://github.com/mikedanese))

### Cluster Autoscaler

- Ensured that the Node Admission plugin to reject CSR requests created by a node identity for the signers `kubernetes.io/kubelet-serving` or `kubernetes.io/kube-apiserver-client-kubelet` with a CN starting with `system:node:`, but where the CN is not `system:node:${node-name}`. The feature gate `Allow...

- The DynamicKubeletConfig and SelfHosting functionality was moved outside of `kubeadm init` and feature gates and is now exposed under `kubeadm alpha`.
- Kubeadm init phase certs now support the `--csr-only` option, simplifying custom CA creation.
- `kubeadm join --experimental-control-plane` now automatically adds a new etcd member for `local etcd` mode, further simplifying required tasks for HA clusters setup.

- Resolves an issue using `kubectl certificate approve/deny` against a server serving the v1 CSR API ([#91691](https://github.com/kubernetes/kubernetes/pull/91691), [@liggitt](https://github.com/liggitt)) [SIG Auth and CLI]

### Other (Cleanup or Flake)

- Update CNI to v0.8.6

- Kubeadm: fixed the bug that `kubeadm certs generate-csr` command does not remove duplicated SANs ([#107982](https://github.com/kubernetes/kubernetes/pull/107982), [@SataQiu](https://github.com/SataQiu))