This release updates Kubernetes to v1.37.1.
Important Note
If your server (control-plane) nodes were not started with the --token CLI flag or config file key, a randomized token was generated during initial cluster startup. This key is used both for joining new nodes to the cluster, and for encrypting cluster bootstrap data within the datastore. Ensure that you retain a copy of this token, as is required when restoring from backup.
You may retrieve the token value from any server already joined to the cluster:
cat /var/lib/rancher/rke2/server/tokenChanges since v1.37.0+rke2r1:
- Bump k3s and etcd (#11240)
- Bump rke2-security-responder to 0.1.6 (#11249)
- Update ingress-nginx to chart 4.15.110 / image v1.15.1-prime12 (#11253)
- Bump rke2-cloud-provider version for 2026-09 release cycle (#11258)
- Update Cilium chart to 1.20.200 (#11266)
- Update vsphere-csi chart (#11282)
- Update multus chart to v4.3.102 (#11288)
- Charts: Bump Harvester CSI Driver to 0.1.32 (#11296)
- Update CoreDNS chart to 1.47.101 (#11292)
- Update to v1.37.1-rke2r1 and Go 1.26.8 (#11300)
- Update CoreDNS chart to 1.47.102 (#11303)
- Build: bump k3s to get the cadvisor fix (#11308)
- Update hardened-kubernetes (#11309)
- Bump k3s 2026-Sept (#11316)
Charts Versions
| Component | Version |
|---|---|
| rke2-cilium | 1.20.200 |
| rke2-canal | v3.32.2-build2026090900 |
| rke2-calico | v3.32.200 |
| rke2-calico-crd | v3.32.200 |
| rke2-coredns | 1.47.102 |
| rke2-ingress-nginx | 4.15.110 |
| rke2-metrics-server | 3.14.001 |
| rke2-multus | v4.3.102 |
| rancher-vsphere-csi | 3.7.3-rancher500 |
| rancher-vsphere-cpi | 1.16.100 |
| harvester-cloud-provider | 0.2.1500 |
| harvester-csi-driver | 0.1.3200 |
| rke2-snapshot-controller | 5.2.004 |
| rke2-snapshot-controller-crd | 5.2.004 |
| rke2-traefik | 41.2.003 |
| rke2-traefik-crd | 41.2.003 |
Packaged Component Versions
| Component | Version |
|---|---|
| Kubernetes | v1.37.1 |
| Etcd | v3.7.1-k3s3 |
| Containerd | v2.3.4-k3s1 |
| Runc | v1.4.3 |
| Metrics-server | v0.9.0 |
| CoreDNS | v1.14.7 |
| Ingress-Nginx | v1.14.5-hardened2 |
| Helm-controller | v0.17.9 |
| Traefik | v3.7.13 |
Available CNIs
| Component | Version | FIPS Compliant |
|---|---|---|
| Canal (Default) | Flannel v0.28.9 Calico v3.32.2 | Yes |
| Calico | v3.32.2 | No |
| Cilium | v1.20.2 | No |
| Multus | v4.3.1 | No |
Helpful Links
As always, we welcome and appreciate feedback from our community of users. Please feel free to:
- Open issues here
- Join our Slack channel
- Check out our documentation for guidance on how to get started.