# Rook v1.20.9

> Storage & Data · 2026-10-14

A maintenance release with operator-visible changes to connection security, device handling, configuration, and monitoring. It also includes cleanup and a dependency update.

## Action needed
- **[breaking]** Priority class for the detect version job
  - The core component now sets a priority class for the detect version job. This job configuration change ships in the core component.

## Check if affected
- **[breaking]** Secure `msgr2` mode for monitor connections
  - Applies if you use `ceph`.
  - Ceph monitor connections now enforce secure `msgr2` mode. This connection-handling change ships in the Ceph component.
- **[breaking]** Rejection of purely numeric topology values
  - Applicability is not stated in the release notes.
  - OSD validation now rejects topology values that contain only numbers. The validation change ships in the OSD component.
- **[breaking]** Skipping `nbd`, `drbd`, and `zram` devices during discovery
  - Applies if you use `nbd`, `drbd`, or `zram` devices.
  - OSD device discovery now skips `nbd`, `drbd`, and `zram` devices. The discovery change ships in the OSD component.
- **[breaking]** Filtering `rbd` devices from LVM scans
  - Applies if you use `rbd devices` and configure `raw-mode activation`.
  - Raw-mode activation now filters `rbd` devices from LVM scans. The scan behavior change ships in the OSD component.

## Other recorded changes
- 8 (added 4, value_changed 2, defect_corrected 2)

[Full analysis](https://ratatosk.io/en/releases/rook/v1.20.9)

[Original release notes](https://github.com/rook/rook/releases/tag/v1.20.9)