k8s Management Cluster Upgrade

We have four sites in our production environment which includes one TCA manager and 2 TCA-CP for each site. We upgraded TCA Manager and TCA-CP for 3 sites from version 2.0.1 to 2.1.0.

When I was trying to upgrade the Kubernetes management cluster from version 1.21.8 to 1.22.9 prompt is coming saying "upgrade from v1.21.8 to v1.22.9 is not supported".

We investigated the logs on TCA-Manager and TCA-CP and everything seems to be fine.

After we upgrade TCA-CP for the fourth site, we were able to upgrade Kubernetes management cluster.

Resolution: TCA-Manager and all the TCA-CP connected to TCA Manager should be on same version. Till now TCA Manager and TCA-CP on different version is not supported.