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Cluster information:
Kubernetes version: 1.20
Cloud being used: NIL
Installation method: Vmbased installation
Host OS: Ubuntu focal
CNI and version: calico 3.20
CRI and version: Docker version/containerd.io 1.6.25
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When i try to upgrade the kubernetes cluster version from 1.20 to later version am successful in upgrading to (1.20 to 1.21 ) but still the kubectl version of server is still pointing to 1.20 . how to solve this? Any suggestions would be appreciated.