kube-apiserver endpoint for the kubelet when creating a cluster with `kubeadm init` or when joining control plane nodes with `kubeadm join`. Enabling the feature gate also affects the `kubeadm init phase kubeconfig kubelet` phase, where the flag `--control-plane-endpoint` no longer affects the generated kubeconfig `Server` field, but the flag `--apiserver-advertise-address` can now be used for the same purpose. ([#129956](https://github.com/kubernetes/kubernetes/pull/129956), [@chrischdi](https://github.com/chrischdi))...

- Deprecated the `preferences` field in kubeconfig in favor of `kuberc`. ([#131741](https://github.com/kubernetes/kubernetes/pull/131741), [@soltysh](https://github.com/soltysh)) [SIG API Machinery, CLI, Cluster Lifecycle and Testing]

- Kubeadm: during the validation of existing kubeconfig files on disk, handle cases where the "ca.crt" is a bundle and has intermediate certificates. Find a common trust anchor between the "ca.crt" bundle and the CA in the existing kubeconfig on disk instead of treating "ca.crt" as a file containing a single CA. ([#123102](https://github.com/kubernetes/kubernetes/pull/123102), [@astundzia](h...

### Other (Cleanup or Flake)

  much later). ([#122204](https://github.com/kubernetes/kubernetes/pull/122204), [@danwinship](https://github.com/danwinship))
- Fixed a regression in "kubeadm init" where a user-specified --kubeconfig file was being ignored. ([#122735](https://github.com/kubernetes/kubernetes/pull/122735), [@avorima](https://github.com/avorima))
- Fixed a regression in kubectl version `1.29.0` where the `--attach` flag was not honored.

- kubeadm: fix a potential panic if kubeadm discovers an invalid, existing kubeconfig file ([#79165](https://github.com/kubernetes/kubernetes/pull/79165), [@neolit123](https://github.com/neolit123))