Mainly bug fixes, webGUI tweaks.
Other highlights:
Added the '--allow-discards' option to LUKS open. This should only have any effect when using encrypted Cache device/pool with SSD devices. It allows a file system to notice if underlying device supports TRIM and if so, passes TRIM commands down.
Fixed issue where files created through OS X had improper permission set.
Version 6.7.0-rc2 2019-01-24
Linux kernel:
version: 4.19.17
patch: b