If you want specific releases to be always available, you can add a `versions` parameter, containing an array of version strings under the `spec` of your ClusterStack: ```yaml vars title="clusterstack.yaml" apiVersion: clusterstack.x-k8s.io/v1alpha1 kind: ClusterStack metadata: name: hetzner-apalla-1-35 spec: provider: hetzner name: apalla kubernetesVersion: "1.35" channel: stable autoSubscribe: true versions: - v1 - v2 providerRef: name: hetzner-apalla-1-35 kind: HetznerClusterStackReleaseTemplate apiVersion: infrastructure.clusterstack.x-k8s.io/v1alpha1 --- apiVersion: infrastructure.clusterstack.x-k8s.io/v1alpha1 kind: HetznerClusterStackReleaseTemplate metadata: name: hetzner-apalla-1-35 spec: template: spec: nodeImages: - controlplaneamd64hcloud - workeramd64hcloud ``` Using this manifest, you'll have the `v1` and `v2` **plus** the latest release of the Cluster Stack for Kubernetes 1.35. If you don't want the latest version to always be available, you can change the value of `spec.autoSubscribe` from `true` to `false`: ```yaml vars title="clusterstack.yaml" apiVersion: clusterstack.x-k8s.io/v1alpha1 kind: ClusterStack metadata: name: hetzner-apalla-1-35 spec: provider: hetzner name: apalla kubernetesVersion: "1.35" channel: stable autoSubscribe: true autoSubscribe: false versions: - v1 - v2 providerRef: name: hetzner-apalla-1-35 kind: HetznerClusterStackReleaseTemplate apiVersion: infrastructure.clusterstack.x-k8s.io/v1alpha1 --- apiVersion: infrastructure.clusterstack.x-k8s.io/v1alpha1 kind: HetznerClusterStackReleaseTemplate metadata: name: hetzner-apalla-1-35 spec: template: spec: nodeImages: - controlplaneamd64hcloud - workeramd64hcloud ``` Note that if you are not auto-subscribed to the latest version, you must specify the versions you want, otherwise there will be no Cluster Stack Release available for your clusters.