• mkfs:
  • add short aliases for -O specification, block-group-tree (bgt), free-space-tree (fst), raid-stripe-tree (rst)
  • don't try to resize the image (namely when backed by file) when --rootdir contains sparse file larger than the image
  • also copy xattr/permissions/ugid/timestamps of the top --rootdir directory
  • add new option --device-uuid to let user specify exact uuid of the device item (only for single device filesystems)
• check:
  • on zoned devices, use correct super block offsets when repairing
  • check inline extent refs order
• subvolume create: add new option --parent to create missing path components of the given path (like mkdir -p)
• rescue clear-ino-cache: new command moved from 'btrfs check' implementing the same as option --clear-ino-cache (to be deprecated and removed in the future)
• dump-tree: allow '-' in tree identifier names for option -t
• btrfstune:
  • drop short option and add long option to enable squota
  • tune space reservation and batch size for block-group-tree conversion
• scrub status: print correct value of "Bytes scrubbed" for unfinished runs
• qgroup show: fix crash when attempting to print path of stale qgroups
• experimental features:
  • move build of raid-stripe-tree out for testing but it's still considered experimental
• other:
  • shell completion updates
  • sync raid-stripe-tree code with kernel
  • build fixes
  • new and updated tests