Deprecate K8s 1.20 variants by November 2022

[etungsten]

Kubernetes 1.20 went out of upstream support in December, 2021. AWS EKS is maintaining support for 1.20 until November 1st, 2022. Bottlerocket will deprecate support of our K8s 1.20 variants at that time.

While you’ll still be able to launch *-k8s-1.20 nodes beyond November 1st, 2022, we’ll no longer provide updated *-k8s-1.20 images, and the Bottlerocket repositories will no longer receive new updates for nodes running K8s 1.20 variants.

We recommend you replace existing Bottlerocket K8s 1.20 nodes with a newer variant - ideally the latest your Kubernetes cluster supports.

For instructions on how to migrate your aws-k8s-1.20 nodes to newer supported versions, please consult the EKS documentation for updating clusters or reach out to us through your AWS support channels for additional questions.