Kubernetes on ClearLinux is currently at 1.19.X and we are working to
upgrade Kubernetes and supporting components to 1.20.X within the next
few releases. Once updated, we will notify this thread and our forum
post  about the version that will carry 1.20.X versions. Any active
Kubernetes clusters on ClearLinux needs to be upgraded prior to moving
to newer releases of ClearLinux. There are detailed guides on upgrading
clusters on ClearLinux in our docs pages.
Please let us know if you have any questions.