- Kubeadm: Fixed a bug where `ClusterConfiguration.APIServer.TimeoutForControlPlane` from `v1beta3` was not respected in newer kubeadm versions where `v1beta4` is the default. ([#133513](https://github.com/kubernetes/kubernetes/pull/133513), [@tom1299](https://github.com/tom1299))

- Kubeadm: fixed a bug where the node registration information for a given node was not fetched correctly during "kubeadm upgrade node" and the node name can end up being incorrect in cases where the node name is not the same as the host name. ([#134363](https://github.com/kubernetes/kubernetes/pull/134363), [@neolit123](https://github.com/neolit123)) [SIG Cluster...

- Fixed a bug where an API group's path was not unregistered from the API server's root paths when the group was deleted. ([#121283](https://github.com/kubernetes/kubernetes/pull/121283), [@tnqn](https://github.com/tnqn)) [SIG API Machinery and Testing]

- Kubeadm: Fixed a bug where the PublicKeysECDSA feature gate was not respected when generating kubeconfig files. ([#12538...

- Kubeadm: fix a regression where the KubeletConfiguration is not properly downloaded during "kubeadm upgrade" commands...

- Kubeadm: fixed a bug where the node registration information for a given node was not fetched correctly during "kubeadm upgrade node" and the node name can end up being incorrect in cases where the node name is not the same as the host name. ([#134364](https://github.com/kubernetes/kubernetes/pull/134364), [@neolit123](https://github.com/neolit123)) [SIG Cluster...

    *  - vSphere cloud provider (VCP) uses OS hostname and not vSphere Inventory VM Name.
    *    That means, now  VCP can handle cases where user changes VM inventory name.
    * - VCP can handle cases where VM migrates to other ESXi cluster or datacenter or vCenter.
    * The only requirement is the shared storage. VCP needs shared storage on all Node VMs.

* Requests with invalid credentials no longer match audit policy rules where users or groups are set, correcting a problem where authorized requests were getting through. ([#59398](https://github.com/kubernetes/kubernetes/pull/59398), [@CaoShuFeng](https://github.com/CaoShuFeng))

- Kubeadm: fix a bug where post upgrade to 1.18.x, nodes cannot join the cluster due to missing RBAC ([#89537](https://github.com/kubernetes/kubernetes/pull/89537), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

- Fixed a 1.28.0 regression where kube-controller-manager can crash when StatefulSet with Parallel policy and PVC labels is scaled up. ([#121184](https://github.com/kubernetes/kubernetes/pull/121184), [@aleksandra-malinowska](https://github.com/aleksandra-malinowska)) [SIG Apps]