ACS upgrade to 4.21 and CKS version compatibility

[KuasarCloud]

Hi team,

I am currently running ACS 4.20 and planning to upgrade to ACS 4.21. While reviewing the compatibility matrix, I noticed that CKS support starts from version 1.33 onward.

If I proceed with the upgrade, will I lose the ability to manage clusters running older Kubernetes versions?

Thank you in advance for your guidance.

Best regards,
Ricardo

[kiranchavala]

@KuasarCloud you can proceed with the upgrade

You will not lose the ability to manage cluster running older kubernetes versions

[rajujith]

@KuasarCloud It's better to upgrade to 4.22 LTS instead of 4.2,1, which is a regular release. For production, it's even better to consider a maintenance release of an LTS release.
https://cwiki.apache.org/confluence/display/CLOUDSTACK/LTS