### (No, really, you MUST read this before you upgrade)

- Kubeadm: remove the deprecated flag `--experimental-patches` for the `init|join|upgrade` commands. The flag `--patches` is no longer allowed in a mixture with the flag `--config`. Please use the kubeadm configuration for setting patches for a node using `{Init|Join}Configuration.patches`. ([#104065](https://github.com/kubernetes/kubernetes/pull/104065), [@pacoxu](https://github.com/pacoxu))

* ACTION REQUIRED: kubeadm: the mixture of "--config" and "--certificate-key" is no longer allowed. The InitConfiguration and JoinConfiguration objects now support the "certificateKey" field and this field should be used instead of the command line argument in case a configuration file...

 - Kubeadm: the flag `--cri-socket` is no longer allowed in a mixture with the flag `--config`. Please use the kubeadm configuration for setting the CRI socket for a node using `{Init|Join}Configuration.nodeRegistration.criSocket`. ([#101600](https://github.com/kubernetes/kubernetes/pull/101600), [@KofClubs](https:...