compatibility.fyi
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Source-backed version compatibility

Rook Ceph Ceph Version Compatibility

Rook Ceph Ceph version compatibility. Rook 1.21 support matrix lists Ceph Squid 19.2.0+ and Ceph Tentacle 20.2.1+.

Full Rook Ceph matrixJSON data
2Version groups
4Documented constraints
2026-10-08Last verified

Quick answer

Ceph compatibility by Rook Ceph 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.

Rook Ceph version

1.21

Supported Ceph versions

19.2+>=20.2.1 <21.0.0

Rook 1.21 support matrix lists Ceph Squid 19.2.0+ and Ceph Tentacle 20.2.1+.

high confidence · verified 2026-10-08 · managed storage cluster

Rook Ceph version

1.20

Supported Ceph versions

19.2+>=20.2.1 <21.0.0

Rook 1.20 support matrix lists Ceph Squid 19.2.0+ and Ceph Tentacle 20.2.1+.

high confidence · verified 2026-10-08 · managed storage cluster

Primary evidence

Sources

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

  1. Rook Ceph Maintenance and SupportAccessed 2026-10-08