Release notes for kOps 1.24 series

⚠ kOps 1.24 has not been released yet! ⚠

This is a document to gather the release notes prior to the release.

Significant changes

By enabling the Karpenter feature flag, users can now create InstanceGroups managed by (https://karpenter.sh)[Karpenter]:

spec:
  manager: Karpenter

You can also start a Karpenter-only cluster with kops create cluster --instance-manager=karpenter ...

kOps will directly manage the Karpenter Provisioner resources. Read more about how Karpenter works on kOps in the Karpenter docs.

Support for Kubernetes version 1.18 has been removed.
Support for Aliyun/Alibaba Cloud has been removed.
Support for Docker has been removed for Kubernetes 1.24+. See https://kubernetes.io/blog/2020/12/02/dockershim-faq

Support for Kubernetes version 1.19 is deprecated and will be removed in kOps 1.25.
Support for Kubernetes version 1.20 is deprecated and will be removed in kOps 1.26.
All legacy addons are deprecated in favor of managed addons, including the metrics server addon and the autoscaler addon.
The node-role.kubernetes.io/master and kubernetes.io/role labels are deprecated and might be removed from control plane nodes in future versions of kOps.
Due to lack of maintainers, the CloudFormation support has been deprecated. The current implementation will be left as-is until the implementation needs updates or otherwise becomes incompatible. At that point, it will be removed. We very much welcome anyone willing to contribute to this target.
Support for Docker has been removed for Kubernetes 1.24+. See https://kubernetes.io/blog/2020/12/02/dockershim-faq