We need to ensure that once we release 1.3.0 (Serving 0.10), it only goes out to OpenShift 4.2 or higher clusters. There's a minKubeVersion we can set in ClusterServiceVersion files that may accomplish this. I don't know if that's all we need or if there's something else.

The expected outcome is that once we release 1.3.0, OpenShift 4.1 clusters continue to work on Serverless 1.2.0 without being upgraded to 1.3.0. OpenShift 4.2 clusters should get upgraded from Serverless 1.2.0 to 1.3.0.