Third hop towards 1.11.2. 1.10 removes the longhorn.io/v1beta1 API, which
requires every Longhorn CRD to store only v1beta2; all 22 already do (the
check from the 1.10 important notes). Settings move to a per-data-engine
JSON format, but the chart renders our defaultSettings and
defaultBackupStore values unchanged.
Checked beforehand: 17 healthy volumes plus 2 detached, no backing
images, system backup pre-upgrade-v1-9-2-202610221421 is Ready.