1. Check major changes https://docs.aws.amazon.com/eks/latest/userguide/kubernetes-versions-standard.html#kubernetes-1.31 2. Check deprecated APIs https://kubernetes.io/docs/reference/using-api/deprecation-guide/#v1-31 3. https://docs.aws.amazon.com/eks/latest/userguide/managing-coredns.html 4. https://docs.aws.amazon.com/eks/latest/userguide/managing-kube-proxy.html 5. https://docs.aws.amazon.com/eks/latest/userguide/managing-vpc-cni.html 6. Amazon EBS CSI Driver for mounting volumes 7. AMI