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update supported versions for v1.3
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Yuvaraj Kakaraparthi committed Jul 6, 2022
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Expand Up @@ -63,53 +63,54 @@ These diagrams show the relationships between components in a Cluster API releas

#### Core Provider (`cluster-api-controller`)

| | CAPI v0.3 (v1alpha3) | CAPI v0.4 (v1alpha4) | CAPI v1.0 (v1beta1) | CAPI v1.1+v1.2 (v1beta1) |
|-------------------|----------------------|----------------------|---------------------|--------------------------|
| Kubernetes v1.16 | ✓ | | | |
| Kubernetes v1.17 | ✓ | | | |
| Kubernetes v1.18 | ✓ | ✓ (only workload) | ✓ (only workload) | ✓ (only workload) |
| Kubernetes v1.19 | ✓ | ✓ | ✓ | ✓ (only workload v1.2) |
| Kubernetes v1.20 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.21 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.22 | ✓ (only workload) | ✓ | ✓ | ✓ |
| Kubernetes v1.23* | | ✓ | ✓ | ✓ |
| Kubernetes v1.24 | | | | ✓ |
| | CAPI v0.3 (v1alpha3) | CAPI v0.4 (v1alpha4) | CAPI v1.0 (v1beta1) | CAPI v1.1+v1.2+v1.3 (v1beta1) |
|-------------------|----------------------|----------------------|---------------------|-------------------------------|
| Kubernetes v1.16 | ✓ | | | |
| Kubernetes v1.17 | ✓ | | | |
| Kubernetes v1.18 | ✓ | ✓ (only workload) | ✓ (only workload) | ✓ (only workload) |
| Kubernetes v1.19 | ✓ | ✓ | ✓ | ✓ (only workload v1.2+v1.3) |
| Kubernetes v1.20 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.21 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.22 | ✓ (only workload) | ✓ | ✓ | ✓ |
| Kubernetes v1.23* | | ✓ | ✓ | ✓ |
| Kubernetes v1.24 | | | | ✓ |

\* There is an issue with CRDs in Kubernetes v1.23.{0-2}. ClusterClass with patches is affected by that (for more details please see [this issue](https://github.com/kubernetes-sigs/cluster-api/issues/5990)). Therefore we recommend to use Kubernetes v1.23.3+ with ClusterClass.
Previous Kubernetes **minor** versions are not affected.
\** When using CAPI v1.2 with the CLUSTER_TOPOLOGY experimental feature on, the Kubernetes Version for the management cluster must be >= 1.22.0.

\** When using CAPI v1.2 or v1.3 with the CLUSTER_TOPOLOGY experimental feature on, the Kubernetes Version for the management cluster must be >= 1.22.0.

The Core Provider also talks to API server of every Workload Cluster. Therefore, the Workload Cluster's Kubernetes version must also be compatible.

#### Kubeadm Bootstrap Provider (`kubeadm-bootstrap-controller`)

| | CAPI v0.3 (v1alpha3) | CAPI v0.4 (v1alpha4) | CAPI v1.0 (v1beta1) | CAPI v1.1+v1.2 (v1beta1) |
|-------------------------------------------------------------------|----------------------|----------------------|---------------------|--------------------------|
| Kubernetes v1.16 + kubeadm/v1beta2 | ✓ | | | |
| Kubernetes v1.17 + kubeadm/v1beta2 | ✓ | | | |
| Kubernetes v1.18 + kubeadm/v1beta2 | ✓ | ✓ (only workload) | ✓ (only workload) | ✓ (only workload) |
| Kubernetes v1.19 + kubeadm/v1beta2 | ✓ | ✓ | ✓ | ✓ (only workload v1.2) |
| Kubernetes v1.20 + kubeadm/v1beta2 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.21 + kubeadm/v1beta2 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.22 + kubeadm/v1beta2 (v0.3) kubeadm/v1beta3 (v0.4+) | ✓ (only workload) | ✓ | ✓ | ✓ |
| Kubernetes v1.23 + kubeadm/v1beta3 | | ✓ | ✓ | ✓ |
| Kubernetes v1.24 + kubeadm/v1beta3 | | | | ✓ |
| | CAPI v0.3 (v1alpha3) | CAPI v0.4 (v1alpha4) | CAPI v1.0 (v1beta1) | CAPI v1.1+v1.2+v1.3 (v1beta1) |
|-------------------------------------------------------------------|----------------------|----------------------|---------------------|-----------------------------|
| Kubernetes v1.16 + kubeadm/v1beta2 | ✓ | | | |
| Kubernetes v1.17 + kubeadm/v1beta2 | ✓ | | | |
| Kubernetes v1.18 + kubeadm/v1beta2 | ✓ | ✓ (only workload) | ✓ (only workload) | ✓ (only workload) |
| Kubernetes v1.19 + kubeadm/v1beta2 | ✓ | ✓ | ✓ | ✓ (only workload v1.2+v1.3) |
| Kubernetes v1.20 + kubeadm/v1beta2 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.21 + kubeadm/v1beta2 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.22 + kubeadm/v1beta2 (v0.3) kubeadm/v1beta3 (v0.4+) | ✓ (only workload) | ✓ | ✓ | ✓ |
| Kubernetes v1.23 + kubeadm/v1beta3 | | ✓ | ✓ | ✓ |
| Kubernetes v1.24 + kubeadm/v1beta3 | | | | ✓ |

The Kubeadm Bootstrap Provider generates kubeadm configuration using the API version recommended for the target Kubernetes version.

#### Kubeadm Control Plane Provider (`kubeadm-control-plane-controller`)

| | CAPI v0.3 (v1alpha3) | CAPI v0.4 (v1alpha4) | CAPI v1.0 (v1beta1) | CAPI v1.1+v1.2 (v1beta1) |
|----------------------------|----------------------|----------------------|---------------------|--------------------------|
| Kubernetes v1.16 + etcd/v3 | ✓ | | | |
| Kubernetes v1.17 + etcd/v3 | ✓ | | | |
| Kubernetes v1.18 + etcd/v3 | ✓ | ✓ (only workload) | ✓ (only workload) | ✓ (only workload) |
| Kubernetes v1.19 + etcd/v3 | ✓ | ✓ | ✓ | ✓ (only workload v1.2) |
| Kubernetes v1.20 + etcd/v3 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.21 + etcd/v3 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.22 + etcd/v3 | ✓* (only workload) | ✓ | ✓ | ✓ |
| Kubernetes v1.23 + etcd/v3 | | ✓* | ✓* | ✓ |
| Kubernetes v1.24 + etcd/v3 | | | | ✓ |
| | CAPI v0.3 (v1alpha3) | CAPI v0.4 (v1alpha4) | CAPI v1.0 (v1beta1) | CAPI v1.1+v1.2+v1.3 (v1beta1) |
|----------------------------|----------------------|----------------------|---------------------|-----------------------------|
| Kubernetes v1.16 + etcd/v3 | ✓ | | | |
| Kubernetes v1.17 + etcd/v3 | ✓ | | | |
| Kubernetes v1.18 + etcd/v3 | ✓ | ✓ (only workload) | ✓ (only workload) | ✓ (only workload) |
| Kubernetes v1.19 + etcd/v3 | ✓ | ✓ | ✓ | ✓ (only workload v1.2+v1.3) |
| Kubernetes v1.20 + etcd/v3 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.21 + etcd/v3 | ✓ | ✓ | ✓ | ✓ |
| Kubernetes v1.22 + etcd/v3 | ✓* (only workload) | ✓ | ✓ | ✓ |
| Kubernetes v1.23 + etcd/v3 | | ✓* | ✓* | ✓ |
| Kubernetes v1.24 + etcd/v3 | | | | ✓ |

The Kubeadm Control Plane Provider talks to the API server and etcd members of every Workload Cluster whose control plane it owns. It uses the etcd v3 API.

Expand All @@ -124,6 +125,7 @@ The Kubeadm Control Plane requires the Kubeadm Bootstrap Provider.
| v1.0 (v1beta1) | v1.8.5 |
| v1.1 (v1beta1) | v1.9.3 |
| v1.2 (v1beta1) | v1.9.3 |
| v1.3 (v1beta1) | v1.9.3 |

#### Kubernetes version specific notes

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