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+btrfs-progs-4.5.2 (2016-05-02)
+ * new/moved command: btrfs-calc-stats -> btrfs inspect tree-stats
+ * check: fix false alert for metadata blocks crossing stripe boundary
+ * check: catch when qgroup numbers mismatch
+ * check: detect running quota rescan and report mismatches
+ * balance start: add safety delay before doing a full balance
+ * fi sync: is now silent
+ * fi show: don't miss filesystems with partially matching uuids
+ * dev ready: accept only one argument for device
+ * dev stats: print "devid:N" for a missing device instead of "(null)"
+ * other:
+ * lowest supported version of e2fsprogs is 1.41
+ * minor cleanups, test updates
+
+btrfs-progs-4.5.1 (2016-03-31)
+ * mkfs: allow DUP on multi-device filesystems
+ * bugfixes: build fixes, assorted other fixes
+
+btrfs-progs-4.5 (2016-03-20)
+ New/moved commands:
+ * btrfs-show-super -> btrfs inspect-internal dump-super
+ * btrfs-debug-tree -> btrfs inspect-internal dump-tree
+
+ New commands:
+ * btrfs fi du - calculate disk usage, including shared extents
+
+ Enhancements:
+ * device delete - delete by id (needs kernel support, not merged to
+ 4.6)
+ * check - new option to specify chunk root
+ * debug-tree/dump-tree - option -t understands human readable name of
+ the tree (along numerical ids)
+ * btrfs-debugfs - can dump block group information
+
+ Bugfixes:
+ * all commands should accept the option separator "--"
+ * several fixes in device scan
+ * restore works on filesystems with sectorsize > 4k
+ * debug-tree/dump-tree - print compression type as string
+ * subvol sync: fix crash, memory corruption
+ * argument parsing fixes: subvol get-default, qgroup create/destroy/
+ assign, inspect subvolid-resolve
+ * check for block device or regular file in several commands
+
+ Other:
+ * documentation updates
+ * manual pages for the moved tools now point to btrfs-filesystem
+ * testsuite updates
+
+btrfs-progs-4.4.1 (2016-02-26)
+ * find-root: don't skip the first chunk
+ * free-space-tree compat bits fix
+ * build: target symlinks
+ * documentation updates
+ * test updates
+
+btrfs-progs-4.4 (2016-01-18)
+ User visible changes:
+ * mkfs.btrfs --data dup
+
+ People asked about duplicating data on a single device for a long time. There
+ are no technical obstacles preventing that, so it got enabled with a warning
+ about potential dangers when the device will not do the duplicated copies. See
+ mkfs.btrfs section DUP PROFILES ON A SINGLE DEVICE.
+
+ * support balance filters added/enhanced in linux 4.4
+ * usage=min..max -- enhanced to take range
+ * stripes=min..max -- new, filter by stripes for raid0/10/5/6
+ * limit=min..max -- enhanced to take range
+ Note: due to backward compatibility, the range maximum for 'usage' is not
+ inclusive as for the others, to keep the same behaviour as usage=N .
+
+ * manual pages enhanced (btrfs, mkfs, mount, filesystem, balance)
+ * error messages updates, rewordings -- some fstests may break due to that
+ * added support for free-space-tree implementation of space cache -- this
+ requires kernel 4.5 and is not recommended for non-developers yet
+ * btrfs filesystem usage works with mixed blockgroups
+
+ Other:
+ * installation to /usr/local -- this has unintentionally changed during
+ conversion to autotools in 3.19
+ * check: fix a false alert where extent record has wrong metadata flag
+ * improved stability on fuzzed/crafted images when reading sys array in
+ superblock
+ * build: the 'ar' tool is properly deteced during cross-compilation
+ * debug-tree: option -t understands ids for tree root and chnuk tree
+ * preparatory work for btrfs-convert rewrite
+ * sparse, gcc warning fixes
+ * more memory allocation failure handling
+ * cleanups
+ * more tests
+
+ Bugfixes:
+ * chunk recovery: fix floating point exception
+ * chunk recovery: endianity bugfix during rebuild
+ * mkfs with 64K pages and nodesize reported superblock checksum mismatch
+ * check: properly reset nlink of multi-linked file
+
+btrfs-progs-4.3.1 (2015-11-16)
+ * fixes
+ * device delete: recognize 'missing' again
+ * mkfs: long names are not trimmed when doing ssd check
+ * support partitioned loop devices
+ * other
+ * replace several mallocs with on-stack variables
+ * more memory allocation failure handling
+ * add tests for bugs fixed
+ * cmd-device: switch to new message printing helpers
+ * minor code cleanups
+
+btrfs-progs-4.3 (2015-11-06)
+ * mkfs
+ * mixed mode is not forced for filesystems smaller than 1GiB
+ * mixed mode broken with mismatching sectorsize and nodesize, fixed
+ * print version info earlier
+ * print devices sorted by id
+ * do not truncate target image with --rootsize
+ * fi usage:
+ * don't print global block reserve
+ * print device id
+ * minor output tuning
+ * other cleanups
+ * calc-size:
+ * div-by-zero fix on an empty filesystem
+ * fix crash
+ * bugfixes:
+ * more superblock sanity checks
+ * consistently round size of all devices down to sectorsize
+ * misc leak fixes
+ * convert: don't try to rollback with a half-deleted ext2_saved
+ subvolume
+ * other:
+ * check: add progress indicator
+ * scrub: enahced error message
+ * show-super: read superblock from a given offset
+ * add README
+ * docs: update manual page for mkfs.btrfs, btrfstune, balance,
+ convert and inspect-internal
+ * build: optional build with more warnings (W=...)
+ * build: better support for static checkers
+ * build: html output of documentation
+ * pretty-print: last_snapshot for root_item
+ * pretty-print: stripe dev uuid
+ * error reporting wrappers, introduced and example use
+ * refactor open_file_or_dir
+ * other docs and help updates
+ * testing:
+ * test for nodes crossing stripes
+ * test for broken 'subvolume sync'
+ * basic tests for mkfs, raid option combinations
+ * basic tests for fuzzed images (check)
+ * command intrumentation (eg valgrind)
+ * print commands if requested
+ * add README for tests
+
+btrfs-progs-4.2.3 (2015-10-19)
+ * subvol sync: make it actually work again: it's been broken since 4.1.2,
+ due to a reversed condition it returned immediatelly instead of waiting
+ * scanning: do not scan already discovered filesystems (minor optimization)
+ * convert: better error message in case the filesystem is not finalized
+ * restore: off-by-one symlink path check fix
+
+btrfs-progs-4.2.2 (2015-10-05)
+ * fi label: use fallback if the label ioctl is not available
+ * convert: check nodesize constraints against commandline features (-O)
+ * scrub: report status 'running' until all devices are finished
+ * device scanning might crash in some scenarios
+ * fi usage: print summary for non-root users
+
+btrfs-progs-4.2.1 (2015-09-20)
+ * fix an off-by-one error in cross-stripe boundary check
+ * if nodesize was 64k, any metadata block was reported as crossing,
+ this leads to mkfs failure for example due to "no free blocks
+ found"
+ * for other nodesizes, if the end of the metadata block was 64k
+ aligned, it was incorrectly reported by fsck
+ * convert: don't write uninitialized data to image
+ * image:
+ * don't loop with option -t0
+ * don't create threads if compression is not requested
+ * other: minor cleanups
+
+btrfs-progs-4.2 (2015-09-03)
+ * enhancements:
+ * mkfs: do not create extra single chunks on multiple devices
+ * resize: try to guess the minimal size, 'inspect min-dev-size'
+ * qgroup assign: add option to schedule rescan
+ * chunk-recover: be more verbose about the scanning process
+ * fixes:
+ * check:
+ * find stripes crossing stripe boundary -- created by convert
+ * print correct range for file hole when there are no extents
+ and learn how to fix it
+ * replace: more sanity checks
+ * convert: concurrency fixes related to reporting progress
+ * find-root: option -a will not skip the current root anymore
+ * subvol list: fix occasional crash
+ * do not create stripes crossing stripe boundary
+ * build:
+ * fixes for musl libc
+ * preliminary support for android (not working yet, more code changes
+ needed)
+ * new EXTRA_CFLAGS and EXTRA_LDFLAGS
+ * other:
+ * lots of cleanups
+ * tests: lots of updates, new tests, framework improvements
+ * documentation updates
+ * debugging: print-tree shows stripe length
+
+btrfs-progs-4.1.2 (2015-07-14)
+ * urgent bugfix: mkfs creates invalid filesystem, must be recreated
+
+btrfs-progs-4.1.1 (2015-07-10) -- Do not use this version!
+ Bugfixes:
+ * defrag: threshold overflow fix
+ * fsck:
+ * check if items fit into the leaf space
+ * fix wrong nbytes
+ * mkfs:
+ * create only desired block groups for single device
+ * preparatory work for fix on multiple devices
+ Enhancements:
+ * new alias for 'device delete': 'device remove'
+ Other:
+ * fix compilation on old gcc (4.3)
+ * documentation updates
+ * debug-tree: print nbytes
+ * test: image for corrupted nbytes
+ * corupt-block: let it kill nbytes
+
+btrfs-progs-4.1 (2015-06-22)
+ Bugfixes:
+ * fsck.btrfs: no bash-isms
+ * bugzilla 97171: invalid memory access (with tests)
+ * receive:
+ * cloning works with --chroot
+ * capabilities not lost
+ * mkfs: do not try to register bare file images
+ * option --help accepted by the standalone utilities
+
+ Enhancements:
+ * corrupt block: ability to remove csums
+ * mkfs:
+ * warn if metadata redundancy is lower than for data
+ * options to make the output quiet (only errors)
+ * mixed case names of raid profiles accepted
+ * rework the output:
+ * more comprehensive, 'key: value' format
+ * subvol:
+ * show:
+ * print received uuid
+ * update the output
+ * new options to specify size units
+ * sync: grab all deleted ids and print them as they're removed,
+ previous implementation only checked if there are any to be
+ deleted - change in command semantics
+ * scrub: print timestamps in days HMS format
+ * receive:
+ * can specify mount point, do not rely on /proc
+ * can work inside subvolumes
+ * send: new option to send stream without data (NO_FILE_DATA)
+ * convert: specify incompat features on the new fs
+ * qgroup:
+ * show: distinguish no limits and 0 limit value
+ * limit: ability to clear the limit
+ * help for 'btrfs' is shorter, 1st level command overview
+ * debug tree: print key names according to their C name
+
+ New:
+ * rescure zero-log
+ * btrfsune:
+ * rewrite uuid on a filesystem image
+ * new option to turn on NO_HOLES incompat feature
+
+ Deprecated:
+ * standalone btrfs-zero-log
+
+ Other:
+ * testing framework updates
+ * uuid rewrite test
+ * btrfstune feature setting test
+ * zero-log tests
+ * more testing image formats
+ * manual page updates
+ * ioctl.h synced with current kernel uapi version
+ * convert: preparatory works for more filesystems (reiserfs pending)
+ * use static buffers for path handling where possible
+ * add new helpers for send uilts that check memory allocations,
+ switch all users, deprecate old helpers
+ * Makefile: fix build dependency generation
+ * map-logical: make it work again
+
+btrfs-progs-4.0.1 (2015-05-20)
+ * restore:
+ * can restore symlinks, new option --symlinks
+ * long option variants added
+ * convert: dropped dependency on acl.h header and libacl is not required
+ for build
+ * fix for 'check' crash
+ * device remove error message fix
+ * preparatory works for fsid change
+
+btrfs-progs-4.0 (2015-04-29)
+ * resize:
+ * don't accept file as an argument (it's confusing)
+ * print better error message in case of an error
+ * restore: optionally restore metadata (time, mode, uid/gid)
+ * receive: optionally enforce chroot
+ * new rescue subcommand 'zero-log', same as btrfs-zero-log, but now also
+ part of the main utility
+ * check:
+ * free space checks match kernel, fixes incorrect reports
+ * convert: fix setting of checksum bit if --no-datasum is used
+ * fsck.btrfs: don't print messages
+ * fix quota rescan on PPC64 (mangled ioctl number)
+ * test updates
+ * documentation: files renamed to .asciidoc, misc fixups
+
+btrfs-progs-3.19.1 (2015-03-25)
+ * convert:
+ * new option to specify metadata block size
+ * --no-progress actually works
+ * restore: properly handle the page boundary corner case
+ * build fixes:
+ * missing macro from public header, BTRFS_BUILD_VERSION
+ * wrong handling of --enable-convert
+ * fi usage: reports correct space for degraded mounts
+ * other:
+ * mkfs: help string updates
+ * completion: added 'usage' subcommands
+ * cleanups in qgroup code, preparatory work
+
+btrfs-progs-3.19 (2015-03-11)
+ * build converted to autotools
+ * btrfs-image
+ * restore can now run in parallel threads
+ * fixed restore of multiple image from multiple devices onto a single
+ dev
+ * introduced metadump v2
+ * check: make --init-csum-tree and --init-extent-tree work together
+ * find-new: option to search through all metadata even if a root was
+ already found
+ * convert: show progress by default, can be turned off
+ * corrupt-block: option to work on a specific root
+ * bash completion script for all subcommands
+
+btrfs-progs-3.18.2 (2015-01-27)
+ * qgroup show: print human readable sizes, options to say otherwise
+ * check: new option to explicitly say no to writes
+ * mkfs: message about trimming is not printed to stderr
+ * fi show: fixed return value
+ * tests: new infrastructure
+ * btrfstune: force flag can be used together with seeding option
+ * backtrace support is back
+ * getopt cleanups
+ * doc and help updates
+
+btrfs-progs-3.18.1 (2015-01-09)
+ * minor fixes
+ * documentation updates
+
+btrfs-progs-3.18 (2014-12-30)
+ * mkfs - skinny-metadata feature is now on by default, first introduced in
+ kernel 3.10
+ * filesystem usage - give an overview of fs usage in a way that's more
+ comprehensible than existing 'fi df'
+ * device usage - more detailed information about per-device allocations
+ * check
+ * option to set a different tree root byte number
+ * ability to link lost files to lost+found, caused by a recent kernel
+ bug
+ * repair of severely corrupted fs (use with care)
+ * convert - option to show progress
+ * subvol create - print the commit mode inline, print the global mode only
+ if --verbose
+ * other updates: musl-libc support, coverity bugfixes, new test images,
+ documentation
+
+btrfs-progs-3.17.3 (2014-12-04)
+ * convert: fix conversion of sparse ext* filesystems
+ * show: resolve to the correct path
+ * fsck: more verbose error for root dir problems
+
+btrfs-progs-3.17.2 (2014-11-19)
+ * check improvements
+ * add ability to replace missing dir item/dir indexes
+ * fix missing inode items
+ * create missing root dirid
+ * corrupt block: enhancements for testing fsck
+ * zero-log: able to reset a fs with bogus log tree pointer (bug_72151)
+
+btrfs-progs-3.17.1 (2014-11-04)
+ * fi df: argument handling
+ * fix linking with libbtrfs
+ * replace: better error reporting
+ * fi show: fixed stall if run concurrently with balance
+ * check: fixed argument parsing for --subvol-extents
+ * fi df: SI prefixes corrected
+
+btrfs-progs-3.17 (2014-10-17)
+ * check: --init-csum-tree actually does something useful, rebuilds the
+ whole csum tree
+ * /dev scanning for btrfs devices is gone
+ * /proc/partitions scanning is gone, blkid is used exclusively
+ * new subcommand subvolume sync
+ * filesystem df: new options to set unit format
+ * convert: allow to copy label from the origin, or specify a new one
+
+btrfs-progs-3.16.2 (2014-10-01)
+ * a few fixes in fsck and image tools
+
+btrfs-progs-3.16.1 (2014-09-15)
+ * print GlobalReserve in fi df output
+ * new option -R in subvol list
+ * library version defines
+ * static build is fixed
+ * build without documentation is possible
+
+btrfs-progs-3.16 (2014-08-26)
+ * mkfs: new option to specify UUID, drop experimental notice
+ * check: new option to verify quotas, reduced memory requirements, new
+ option to print extent sharing
+ * restore: check length before decompression, more error handling, option
+ to loop during restoring
+ * balance: new filter 'limit'
+ * recover: allow to read all sb copies
+ * btrfstune: new option to force dangerous changes
+ * receive: new option to limit number of errors
+ * show-super: skip unrecognized sb, add option to force
+ * debug-tree: print tree by id
+ * documentation updates
+
+btrfs-progs-3.14.2 (2014-05-29)
+ * documentation is now written in asciidoc and there are manpages for each
+ subcommand
+ * misc bugfixes
+
+btrfs-progs-3.14.1 (2014-04-18)
+ * properties: fix handling of option -t
+ * restore: fix reading of compressed extents
+ * minor code and doc updates
+
+btrfs-progs-3.14 (2014-04-06)
+ * fsck: fixes and enhancements to --init-extent-tree mode
+ * fsck: chunk-recover updates
+ * scrub: add force option -f
+ * send: check if subvolumes are read-only
+ * subvol delete: add options to affect commit behaviour
+ * btrfs: add property command group
+ * restore: add dry-run option
+ * restore: fix restoring of compressed files
+ * mkfs: support for no-holes feature
+ * mkfs: option -r deals with hardlinks and relative paths
+ * mkfs: discard phase is interruptible
+ * documentation updates
+
+btrfs-progs-3.12 (2013-11-25)
+ * announcement, tarballs
+ * first release after 0.19 (2009/06) with a lot of changes