Cloudformation template is outdated

[staticnotdynamic]

I wanted to let know that your Cloudformation script is outdated. Specifically, the ClusterVersion template parameter is what causes the stack to fail to build:

AllowedValues:
      - "1.10"
      - "1.11"
      - "1.12"
      - "1.13"
      - "latest"

Currently 1.19 to 1.21 is supported, and "latest" is apparently not a valid kubernetes version (as per EKS). In addition, there is a logical error after you get to build the cluster with a supported version: