Check available kubectl and kubelet versions

To view the available kubectl and kubelet versions you can install, run apt-cache madison kubelet/kubectl. Note that the versions that will appear are those under the minor version set in /etc/apt/sources.list.d/kubernetes.list. More information the references.

controlplane ~ ➜  sudo apt-cache madison kubelet
   kubelet | 1.33.2-1.1 | https://pkgs.k8s.io/core:/stable:/v1.33/deb  Packages
   kubelet | 1.33.1-1.1 | https://pkgs.k8s.io/core:/stable:/v1.33/deb  Packages
   kubelet | 1.33.0-1.1 | https://pkgs.k8s.io/core:/stable:/v1.33/deb  Packages

controlplane ~ ➜  sudo apt-cache madison kubectl
   kubectl | 1.33.2-1.1 | https://pkgs.k8s.io/core:/stable:/v1.33/deb  Packages
   kubectl | 1.33.1-1.1 | https://pkgs.k8s.io/core:/stable:/v1.33/deb  Packages
   kubectl | 1.33.0-1.1 | https://pkgs.k8s.io/core:/stable:/v1.33/deb  Packages

References:

1. https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade/
2. https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/change-package-repository