SKS: Kubernetes 1.37 Now Available

Kubernetes 1.37 is now available on Exoscale Scalable Kubernetes Service (SKS) for new and existing clusters.

Named Garhwal, Kubernetes 1.37 includes 67 enhancements, with 16 features graduating to Stable. The release strengthens established Kubernetes APIs and improves the foundations for secure workloads and reliable cluster upgrades.

Key benefits

• A stable resource Metrics API: The metrics.k8s.io/v1 API now carries Kubernetes’ Stable API guarantees. This gives tooling that uses pod and node CPU and memory metrics a more durable integration target. Existing v1beta1 clients remain supported during the transition, and using the new API requires a compatible metrics provider.
• Stronger foundations for workload identity: Pod Certificates and Cluster Trust Bundles are now Stable, providing standard Kubernetes building blocks for issuing X.509 certificates and distributing trust material to workloads. This can simplify TLS and mutual TLS integrations when used with a compatible certificate signer.
• Safer mixed-version operation: Node Declared Features are now Stable. Control-plane components can identify the features available on each node, improving behavior when clusters temporarily contain different node versions during upgrades.
• Continued security and reliability improvements: Upgrading keeps clusters on an actively supported Kubernetes release and provides the latest upstream fixes and improvements included in Kubernetes 1.37.

Upgrade notes

• Existing SKS clusters are not upgraded automatically.
• Review the Kubernetes 1.37 release announcement and test the upgrade in a non-production environment before upgrading production clusters.
• Upgrade the control plane and node pools using the Exoscale Portal, CLI, or API. Kubernetes minor versions must be upgraded sequentially.

Learn how to upgrade and manage the Kubernetes version of an SKS cluster