Upgrading EKS clusters to v1.28 · Skyscrapers Changelog

Update 2023-09-28: All clusters have been upgraded to v1.28.

We are rolling out EKS v1.28. This brings our supported platforms to v1.28(.3). Please make sure to update to our recommended client versions matching this upgrade

Timeline:

Testing & rollout to non-production clusters has happened in the past week
Production rollouts are in progress and are expected to finish at the end of this week
Update this changelog when everything is finished

Important changes between K8s 1.27 and 1.28

For more detailed info on what’s new and changed, please make sure to check the Kubernetes 1.28 release announcement and the full Kubernetes 1.28.x changelog.

This release mostly focusses on graduating many features/apis to alpha, beta and stable status. Here’s a small list of the most relevant changes:

Changes to supported skew between control plane and node versions However we strive to keep both control plane and node versions in sync, it’s a welcome update for those very rare cases that certain nodes are lagging behind (eg. due to maintenance windows).
Recovery from non-graceful node shutdown in now GA A feature that we’ve been using actively, complemented with aws-node-termination-handler (and more recently karpenter). It’s always good to see features to graduate to stable.
Automatic, retroactive assignment of a default StorageClass graduates to stable Another feature that has already been the case on our managed clusters, but now it is always active in Kubernetes.

In the process of upgrading EKS the following components have also been upgraded:

There are no actions to take for you this release.