v6.8

• fix --enqueue option timeout handling
• subvolume: remove support for undocumented options -c and -x, functionality disabled in kernel
• libbtrfsutil:
  • version 0.1.3, backward compabile
  • add aliases for all existing functions with unified naming scheme
  • updated header defintions for recently added kernel features
• send: v3 supported in experimental mode
• other:
  • docs: manual page references, graphs, enhancements, clarifications
  • error handling fixes
  • cleanups and refactoring

v6.7.1

• convert: raid-stripe-tree can be now enabled for the target filesystem
• mkfs:
  • handle lifetime of open file descriptors so it does not trigger udev that could miss to create the UUID symlinks in /dev
  • update warning when CPU page size does not match sector size
  • merge features in summary, no more distinction of incompat and runtime to match the semantics of option -O
• fi show: fix recognizing raw device mapper paths
• other:
  • CI updates, build images updates
  • minor cleanups
  • minor sync with kernel
  • documentation updates, fix links to labels in included directories

v6.7

• mkfs: make 4k sectorsize default, recommended minimum kernel for that is 6.1 and requires subpage support on architectures with page size > 4k
• subvolume create: return correct error code when a target already exists
• tree-checker: dump tree block on error (btrfs-convert, ...)
• scrub limit: fix reporting of a limit set while there's none
• fi usage: fix reporting of unallocated data or raid56 profile without root privs due to lack of that information
• convert:
  • align data block group lengths to 64K
  • fix conversion of a large filesystem when there are partial inode items present due to caching
• other:
  • build fixes
  • updated documentation
  • new and updated tests

v6.6.3

• subvol create: accept multiple arguments
• subvol delete: print the subvolume id in the output
• subvol sync: check if the filesystems is still writeable so it does not wait indefinitely
• device delete: add a timeout and warning when deleting multiple devices
• scrub status: report limit if set in sysfs/../scrub_speed_max
• scrub limit: new command to show or set the per-device scrub limits
• scrub start: report the limit if set
• build:
  • fix CPU feature detection on aarch64
  • support Botan and OpenSSL (3.2+) as crypto backends
• other:
  • documentation updates, RTD config update
  • new and updated tests
  • CI updates

v6.6.2

• squota: change key number of EXTENT_OWNER_REF_KEY, sync with kernel 6.7-rc1
• property set/get: completely skip char devices, trying to set properties and open /dev/watchdog* causes a reboot
• other: build warnings, test updates, documentation updates

v6.6.1

Please don't use version 6.6

• fix device scanning ioctl definition, accidental change to the 'forget' ioctl that breaks mounting multi-device filesystems

v6.6

• new global option --dry-run, now implemented for 'subvolume delete'
• fi defrag: new option --step to defragment files in steps, report progress
• balance: removed support for obsolete short syntax 'btrfs balance /path'
• mkfs: print zone count for each device in the overview
• check:
  • verify inline ref ordering
  • deprecate --clear-space-cache, moved to the 'rescue' group
• rescue clear-space-cache: new command moved from 'btrfs check' implementing the same as option --clear-space-cache (to be deprecated and removed in the future)
• dump-tree: output sequence number for inline refs
• fixes:
  • fi resize: fallback to lowest devid when 1 does not exist, previously the command would fail with "No such device"
  • fi usage: fix "devices 0 != 1" message and broken output on multi-device filesystem
  • open files in non-blocking mode when reading fsid, this could hang when trying to open fifo files or some special character devices, was observed with 'prop set/get'
• experimental:
  • mkfs: parametric zone size for emulated zoned mode
• other:
  • cleanups refactoring
  • new and updated tests
  • CI updates
  • documentation updates

v6.5.3

• 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

v6.5.2

• new feature support:
  • raid-stripe-tree, new tree to track extent mapping for raid profiles, allows raid1*, raid0 and raid10 on zoned devices (kernel 6.7)
  • simple quotas, simplified accounting that does not track exclusive and shared extents (kernel 6.7)
  • mkfs with duplicate UUID on a single device, temp-fsid (kernel 6.7)
• metadata_uuid: enhanced capabilities to repair partially updated fsid on multiple devices
• other:
  • updated tests and CI
  • sync sources with kernel

v6.5.1

• build fixes:
  • crc32c if PIE or relro is enabled
  • detect if PCLMUL feature is recognized by compiler and also detect that
    at runtime
• check: verify metadata item level when skinny-metadata is enabled
• other: minor build and docs updates