This release updates Kubernetes to v1.21.8, and fixes a number of minor issues.
For more details on what's new, see the Kubernetes release notes.
Known Issues
- #2323: When using embedded etcd and the initial server is started with --agent-token, and this agent-only token does not match the server --token value, additional servers cannot join the cluster. This will be fixed in a subsequent release.
 - #1447: When restoring RKE2 from backup to a new node, you should ensure that all pods are stopped following the initial restore:
 
curl -sfL https://get.rke2.io | sudo INSTALL_RKE2_VERSION=v1.21.6+rke2r1
rke2 server \
  --cluster-reset \
  --cluster-reset-restore-path=<PATH-TO-SNAPSHOT> --token <token used in the original cluster>
rke2-killall.sh
systemctl enable rke2-server
systemctl start rke2-serverChanges since v1.21.7+rke2r2:
- Update wharfie for tar path separator fix (#2303)
 - Bump versions for v1.21.8-rc3+rke2r1 (#2298)
 - Add check for etcd group (#2290) (#2296)
 - Bump RKE2 to v1.21.8-rc2+rke2r1 (#2285)
 - Bump K3s to v1.21.8-k3s1 (#2282)
 - Update K3s to fix cold restart issue (#2278)
 - Bump RKE2 to v1.21.8-rc1+rke2r1 (#2275)
 - Bump harvester cloud provider and harvester csi driver (#2273)
 - Update K3s (#2264)
 - Remove extra space in s390x manifest runtime template (#2259)
 - Bump RKE2 to v1.21.7-rc1+rke2r3 (#2256)
 - Add startup hook to watch/delete static pods on node delete (#2250)
 - Bump k3s and related modules (#2240)
 - Add s390x support (#2171)
 - Bump multus image tags to match build2021111906 chart version (#2238)
 - Secrets Encryption CLI: key rotation and enable/disable (#2235)
 - Adding certificate rotation command to rke2 (#2224)
 
Packaged Component Versions
| Component | Version | 
|---|---|
| Kubernetes | v1.21.8 | 
| Etcd | v3.4.13-k3s1 | 
| Containerd | v1.4.12-k3s1 | 
| Runc | v1.0.3 | 
| CNI Plugins | v0.9.1 | 
| Metrics-server | v0.5.0 | 
| CoreDNS | v1.8.5 | 
| Ingress-Nginx | 4.0.3 | 
| Helm-controller | v0.11.9 | 
Available CNIs
| Component | Version | FIPS Compliant | 
|---|---|---|
| Canal (Default) | Flannel v0.15.1 Calico v3.20.1  | Yes | 
| Calico | v3.19.2 | No | 
| Cilium | v1.10.4 | No | 
| Multus | v3.7.1 | 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.