Source-backed version compatibility

Rancher K3s Version Compatibility

Rancher K3s version compatibility. Rancher 2.15.0 release notes list K3s Kubernetes 1.34, 1.35, and 1.36 and identify 1.36 as the default version.

4Project versions

4Documented constraints

2026-07-31Last verified

Quick answer

K3s compatibility by Rancher version

Rancher version

Documented K3s versions

>=1.34 <1.37

Rancher 2.15.0 release notes list K3s Kubernetes 1.34, 1.35, and 1.36 and identify 1.36 as the default version.

high confidence · verified 2026-07-31 · provisioned Kubernetes platform

Rancher version

Documented K3s versions

>=1.33 <1.36

The Rancher 2.14.3 matrix certifies RKE2, K3s, AKS, EKS, GKE, and ACK Kubernetes 1.33 through 1.35 for provisioned or imported downstream clusters.

high confidence · verified 2026-07-10 · certified downstream Kubernetes platform

Rancher version

Documented K3s versions

>=1.32 <1.35

The Rancher 2.13.7 matrix certifies RKE2, K3s, AKS, EKS, GKE, and ACK Kubernetes 1.32 through 1.34 for provisioned or imported downstream clusters.

high confidence · verified 2026-07-10 · certified downstream Kubernetes platform

Rancher version

Documented K3s versions

>=1.31 <1.34

The Rancher 2.12.11 matrix certifies RKE2, K3s, AKS, EKS, and GKE Kubernetes 1.31 through 1.33 for provisioned or imported downstream clusters.

high confidence · verified 2026-07-10 · certified downstream Kubernetes platform

Primary evidence

Every constraint above is backed by upstream documentation, tagged source, release notes, or another project-owned primary source.