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Source-backed version compatibility

RKE2 Windows CNI Version Compatibility

RKE2 Windows CNI version compatibility. The support matrix requires Calico or Flannel for Windows workers; the control plane must run on Linux.

Full RKE2 matrixJSON data
3Version groups
6Documented constraints
2026-09-11Last verified

Quick answer

Windows CNI compatibility by RKE2 version

Supported and tested versions have compatibility evidence. Recommended and bundled versions describe upstream choices without establishing compatibility. Versions outside the documented coverage are unknown, not necessarily incompatible.

RKE2 version

1.36.4+rke2r1

Supported Windows CNI versions

calicoflannel

The support matrix requires Calico or Flannel for Windows workers; the control plane must run on Linux.

high confidence · verified 2026-09-11 · Windows worker network plugin

RKE2 version

1.35.8+rke2r1

Supported Windows CNI versions

calicoflannel

The support matrix requires Calico or Flannel for Windows workers; the control plane must run on Linux.

high confidence · verified 2026-09-11 · Windows worker network plugin

RKE2 version

1.34.11+rke2r1

Supported Windows CNI versions

calicoflannel

The support matrix requires Calico or Flannel for Windows workers; the control plane must run on Linux.

high confidence · verified 2026-09-11 · Windows worker network plugin

Primary evidence

Sources

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

  1. RKE2 1.36 Support MatrixAccessed 2026-09-11
  2. RKE2 1.35 Support MatrixAccessed 2026-09-11
  3. RKE2 1.34 Support MatrixAccessed 2026-09-11