Amazon EKS makes Kubernetes upgrades reversible with version rollbacks

Kubernetes upgrades have long been a one-way door: once a cluster moved to a new minor version, the only way back was a rebuild and migration. AWS has now closed that gap with version rollbacks for Amazon EKS, letting administrators reverse a control-plane upgrade within seven days of completing it. A cluster taken from 1.34 to 1.35, for example, can be returned to 1.34 — and crucially, it returns to the fully validated previous version the cluster actually ran, not an emulation of it. Control-plane rollbacks work on all EKS clusters, while node rollbacks are supported on clusters running EKS Auto Mode. The feature is available now at no additional cost in every commercial region where EKS operates. For teams that have deferred upgrades out of caution — accumulating version debt and extended-support fees in the process — this turns the upgrade from a high-stakes commitment into a reversible operation, and removes the main excuse for staying behind.

This is a summary by our content curator. Read the original at the AWS News Blog: https://aws.amazon.com/blogs/aws/upgrade-amazon-eks-clusters-with-confidence-using-kubernetes-version-rollbacks/.