ClusterStack releases and Kubernetes versions

Every ClusterStack release ships a specific patch version of Kubernetes. The table below maps each hetzner-apalla ClusterStack release to the Kubernetes version it provides, together with its release date — so you can see at a glance which release corresponds to which Kubernetes version.

By default the table shows the latest ClusterStack release for each Kubernetes minor version. Choose Show all releases to expand the full history.

ClusterStack releases for hetzner-apalla and their Kubernetes versions
Kubernetes	ClusterStack release	Kubernetes version	Released
1.35	hetzner-apalla-1-35-v3 Latest	v1.35.6	Jun 16, 2026
1.34	hetzner-apalla-1-34-v9 Latest	v1.34.9	Jun 19, 2026
1.33	hetzner-apalla-1-33-v12 Latest	v1.33.13	Jun 19, 2026

Showing the latest release of each Kubernetes version.

note

A single Kubernetes patch version can be shipped by more than one ClusterStack release — a newer release often adds fixes or addons without bumping Kubernetes itself (for example, several 1-32 releases all ship v1.32.13 ).

Planning an upgrade

Upgrades follow tested upgrade paths, and you cannot skip more than one Kubernetes minor version at a time. To upgrade your cluster step by step, see:

Update within the same Kubernetes version — move to a newer ClusterStack release while staying on the same Kubernetes minor version.
Update to a new Kubernetes version — move to the next Kubernetes minor version along a tested upgrade path.

tip

For the guided, step-by-step path from the exact version your cluster is on, open the version selector at the top of the navigation and select your current version. Autopilot will then lay out the precise sequence of releases to upgrade through.