- Kubeadm: default the kubeadm configuration to the containerd socket (Unix: `unix:///var/run/containerd/containerd.sock`, Windows: `npipe:////./pipe/containerd-containerd`) instead of the one for Docker. If the `Init|JoinConfiguration.nodeRegistration.criSocket` field is empty during cluster creation and multiple sockets are...

-...

* kubeadm will now pull required images during preflight checks if it cannot find them on the system. ([#641...

### Node

- Fixed help message for `--container-runtime-endpoint`: only unix socket is support on Linux. ([#74712](https://github.com/kubernetes/kubernetes/pull/74712), [@feiskyer](https://github.com/feiskyer))

and fetching of public verifying keys, by enabling the Alpha `ExternalServiceAccountTokenSigner` feature gate and specifying `--service-account-signing-endpoint`. The flag value can either be the location of a Unix domain socket on a filesystem, or be prefixed with an @ symbol and name a Unix domain socket in the abstract socket namespace. ([#128190](https://github.com/kubernetes/kubernetes/pull/128190), [@HarshalNeelkamal](https://github.com/HarshalNeelkamal)) [SIG API Machinery, Apps, Auth, Etcd,...

- kubeadm will now print required flags when running `kubeadm upgrade plan`.([#65802](https://github.com/kubernetes/kubernetes/pull/65802), [@xlgao-zju](https://github.com/xlgao-zju))
- Unix support for ZFS as a valid graph driver has been added for Docker, enabling users to use Kubeadm with ZFS. ([#65635](https://github.com/kubernetes/kubernetes/pull/65635), [@neolit123](https://github.com/neolit123))

### SIG GCP

- Kubeadm: handle dup `unix://` prefix in node annotation ([#110656](https://github.com/kubernetes/kubernetes/pull/110656), [@pacoxu](https://github.com/pacoxu)) [SIG Cluster Lifecycle]

- Profiling can now be served on a unix-domain socket by using the `--profiling-path` option (when profiling is enabled) for security purposes. ([#114191](https://github.com/kubernetes/kubernetes/pull/114191), [@apelisse](https://github.com/apelisse)) [SIG API Machinery]

- Enabled the `node-local` kubelet podresources API endpoint on windows, alongside unix. ([#115133](https://github.com/kubernetes/kubernetes/pull/115133), [@ffromani](https://github.com/ffromani))

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