v1.31.0

Significant changes

• Kubernetes minor version upgrades to 1.31 should be performed using a new kops reconcile cluster command.

Kubernetes 1.31 introduces stricter checks around the version-skew policy. While kOps has always followed the version-skew policy, there was an edge case: nodes that were added by an autoscaler during a rolling-update would not always follow the version-skew policy. We recommend trying the new kops reconcile command, see docs/tutorial/upgrading-kubernetes.md for more details.

Other changes of note

• Cilium has been upgraded to v1.16.
• Spotinst cluster controller V1 is replaced with Ocean kubernetes controller V2, all old k8s resource are removed except spotinst-kubernetes-cluster-controller Secret.

Deprecations

• Support for Kubernetes version 1.25 is deprecated and will be removed in kOps 1.31.

• Support for Kubernetes version 1.26 is deprecated and will be removed in kOps 1.32.

Full Changelog: v1.31.0-beta.1...v1.31.0

Changes since 1.31.0-beta.1

• Only set NTH ManagedASGTag label if it doesn't already exist by @rifelpet in #17142
• chore(networking): bump aws-vpc-cni version to 1.19.2 by @moshevayner in #17164
• Only configure STS region for Route 53 when we obtain it using IDMS by @johngmyers in #17166
• Update OldestRecommendedKubernetesVersion to 1.28 for kOps 1.31 by @hakman in #17168
• Update Cilium to v1.16.5 by @hakman in #17173
• Adding VolumeType for Azure for etcdMembers by @hakman in #17175
• Propagate IG NodeLabels to k8s nodes in Hetzner by @rifelpet in #17176
• Update Go to v1.23.4 by @hakman in #17185
• fix the random order of block_device_mappings render Include by @hakman in #17188
• aws: Update EBS CSI driver to v1.38.1 by @hakman in #17194
• Use SDK's built-in resolver for S3Path.GetHTTPsUrl by @rifelpet in #17195
• Use the same port for hubble-metrics that is used by by @hakman in #17198
• Update containerd to v1.7.25 by @hakman in #17202
• Update Go to v1.23.5 by @hakman in #17218
• chore: add context to rolling update functions by @justinsb in #17222
• s3 vfs: fix delete all versions to handle errors by @justinsb in #17221
• reconcile: if --yes is not provided, print the same output as update cluster does by @justinsb in #17223
• chore: refactor factory to accept a cluster by @justinsb in #17225
• Remove reconcile flag from kops update by @justinsb in #17226
• tests: use reconcile command for kOps 1.31+ by @justinsb in #17228
• chore: generate kubeconfig on the fly by @justinsb in #17227
• Release 1.31.0 by @justinsb in #17231