First release supporting kubernetes 1.11.x series
kops will attempt to remove NLBs (also known as ELB v2) that are
tagged as created by the cluster. Please double-check the preview
kops delete clusterbefore allowing deletion.
JSON & YAML field names in the kops objects are case-sensitive.
This was a regression across the kubernetes API libraries as
Please double-check that you are using the correct field names if
you are constructing YAML / JSON outside of kops.
None known at this time