Upgrade the cluster to a new Kubernetes version

Documentation is tailored to each Cluster Stack release. Pick the one your cluster runs.

Check for ARM-based nodes#

If your cluster isn't running ARM-based nodes, skip this step. Starting from hetzner-apalla-1-33-v11, hetzner-apalla-1-34-v8, and hetzner-apalla-1-35-v3, ARM is temporarily not supported. If your cluster has any, the upgrade will fail unless you migrate them to x86 nodes first — see Migrate ARM servers to x86 in your cluster for instructions.

You are viewing documentation for Kubernetes 1.33, Cluster Stack release hetzner-apalla-1-33-v6. To upgrade to Kubernetes 1.34, first update your cluster to Cluster Stack release hetzner-apalla-1-33-v13 by following this guide: Updating the cluster with same Kubernetes version . Once that update is complete, return to this guide to upgrade your Kubernetes version.

Not sure which Kubernetes minor and Cluster Stack release your cluster uses? Check the Kubernetes version and Cluster Stack of your cluster.

Update cluster

Move a Syself Autopilot cluster to a newer Cluster Stack release on the same Kubernetes minor version: make the release available, then point the cluster at it.

Cluster API v1beta2

Learn about the Cluster API v1beta2 update and how it affects your clusters.