chore(k8s): update version policy (#5010)

Author: louisportay

pages/kubernetes/reference-content/version-support-policy.mdx

@@ -7,7 +7,7 @@ content:
   paragraph: This page explains Scaleway's Kubernetes version support policy
 tags: kubernetes support-policy
 dates:
-  validation: 2024-12-09
+  validation: 2025-05-22
   posted: 2022-04-04
 categories:
   - kubernetes
@@ -59,13 +59,9 @@ When a minor version becomes unsupported, Scaleway operates an upgrade to the la
 | 1.32               | December 2024    | February 28, 2028    | March 24, 2025             | March 24, 2026 | Mai 24, 2026    |
 | 1.31               | August 2024      | October 28, 2025     | December 2, 2024             | December 2, 2025 | February 2, 2026  |
 | 1.30               | April 2024       | June 28, 2025        | July 9, 2024                 | July 9, 2025     | September 9, 2025 |
-| 1.29               | December 2023    | February 2025        | February 7, 2024             | February 2025    | April 7, 2025     |
-| 1.28               | August 2023      | October 2024         | August 2023                  | February 2025    | April 7, 2025     |
-| 1.27               | April 2023       | June 2024            | April 2023                   | February 2025    | April 7, 2025     |
 
 <Message type="important">
 Scaleway's support window for Kubernetes releases is 14 months.
-Versions prior 1.27 are no longer supported. Please upgrade your clusters to a supported version.
 </Message>
 
 ## Version information
@@ -85,37 +81,11 @@ The following documentation only lists the main feature changes for each version
 * Official [release announcement](https://kubernetes.io/blog/2024/04/17/kubernetes-v1-30-release/)
 * 45 enhancements: 10 are entering alpha, 18 are have graduated to beta, and 17 graduated to stable (see announcement for full list).
 
-### 1.29
-* Official [release announcement](https://kubernetes.io/blog/2023/12/18/kubernetes-1-29-feature-loadbalancer-ip-mode-alpha/)
-* Kubernetes 1.29 includes a total of 11 enhancements promoted to stable, 19 to beta, and 19 to alpha.
-
-### 1.28
-* Official [release announcement](https://kubernetes.io/blog/2023/08/15/kubernetes-v1-28-release/)
-* 45 enhancements: 19 are entering alpha, 14 have graduated to beta, and 12 have graduated to stable.
-
-### 1.27
-* Official [release announcement](https://kubernetes.io/blog/2023/04/11/kubernetes-v1-27-release/)
-* This release consists of 60 enhancements. 18 of those enhancements are entering alpha, 29 are graduating to beta, and 13 are graduating to stable.
-
 ## Supported Container Network Interfaces (CNI)
 
-Starting from Kubernetes version 1.25 launch:
 * Kubernetes Kapsule only supports **cilium** and **calico** as CNI.
 * Kubernetes Kosmos only supports **kilo** as CNI.
 
-| Interface |   Obsolete  |
-|-----------|-------------|
-| Flannel   |  from v1.25 |
-| Weave     |  from v1.25 |
-
-* Migration policy:
-  * Control planes cannot be upgraded on obsolete CNIs.
-  * *Recommended action:* Create new clusters using a supported CNI, either via API or from the Scaleway console.
-
-<Message type="important">
-Clusters still running unsupported CNIs (Flannel, Weave) cannot be upgraded manually. While migrating to v1.25 (May 15th, 2024), Scaleway will change the [CNI configuration](https://www.scaleway.com/en/developers/api/kubernetes/#path-clusters-update-a-cluster-response-cni) to `none`.
-</Message>
-
 ## Supported Container Runtime Interfaces (CRI)
 
-Starting from the launch of Kubernetes version 1.25, **containerd** is the only runtime supported by Scaleway Kubernetes products.
+**Containerd** is the only runtime supported by Scaleway Kubernetes products.