Rook

v1.18.11Storage & Data

May 28, 2026Copy link

Rook v1.18.11 patches liveness probe stability, OSD disk handling, and CSI priority class assignment. No major breaking changes, but one CSI component fix may shift pod scheduling.

• enhancementFix liveness probe script formatting

  Rook v1.18.11 removes newlines from liveness probe scripts (PR #17420). If your Ceph cluster's liveness probes are flaky or generating spurious restarts, upgrade immediately — the whitespace issue could be interfering with probe output parsing. No breaking changes, but the fix eliminates a source of operational noise.

• enhancementDisk zapping for forced OSD installation

  The disk zapping feature for forced OSD installation (PR #17533) gives you explicit control over device reuse. If you're adding storage to existing nodes or recovering failed OSD slots, update to v1.18.11 and review your OSD discovery workflow — you can now force installation on previously used disks without manual intervention.

• breakingCSI priority class name correction

  CSI provisioner and plugin priority class names were swapped in earlier v1.18.x releases (PR #17361). If you've set custom CSI priority classes, check your PVCs and plugin pods after upgrade — the correct priority class will now apply to the right component, potentially changing scheduling behavior for storage workloads.