Version 2.0

• #8: New -exclude <expression> syntax to more easily and reliably filter out paths.
  For example:

  bfs -name config -exclude -name .git
  

  will find all files named config, without searching any directories (or files) named .git.
  In this case, the same effect could have been achieved (more awkwardly) with -prune:

  bfs ! \( -name .git -prune \) -name config
  

  But -exclude will work in more cases:

  # -exclude works with -depth, while -prune doesn't:
  bfs -depth -name config -exclude -name .git
  
  # -exclude applies even to paths below the minimum depth:
  bfs -mindepth 3 -name config -exclude -name .git
  

• #30: -nohidden is now equivalent to -exclude -hidden.
  This changes the behavior of command lines like

  bfs -type f -nohidden
  

  to do what was intended.

• Optimized the iterative deepening (-S ids) implementation

• Added a new search strategy: exponential deepening search (-S eds).
  This strategy provides many of the benefits of iterative deepening, but much faster due to fewer re-traversals.

• Fixed an optimizer bug that could skip -empty/-xtype if they didn't always lead to an action

• Implemented -xattrname to find files with a particular extended attribute (from macOS find)

• Made -printf %l still respect the width specifier (e.g. %10l) for non-links, to match GNU find

• Made bfs fail if -color is given explicitly and LS_COLORS can't be parsed, rather than falling back to non-colored output

Version 1.7

• Fixed -ls printing numeric IDs instead of user/group names in large directory trees
• Cached the user and group tables for a performance boost
• Fixed interpretation of "default" ACLs
• Implemented -s flag to sort results

Version 1.6

• Implemented -newerXt (explicit reference times), -since, -asince, etc.
• Fixed -empty to skip special files (pipes, devices, sockets, etc.)

Version 1.5.2

• Fixed the build on NetBSD
• Added support for NFSv4 ACLs on FreeBSD
• Added a + after the file mode for files with ACLs in -ls
• Supported more file types (whiteouts, doors) in symbolic modes for -ls/-printf %M
• Implemented -xattr on FreeBSD

Version 1.5.1

• Added a warning to -mount, since it will change behaviour in the next POSIX revision
• Added a workaround for environments that block statx() with seccomp(), like older Docker
• Fixed coloring of nonexistent leading directories
• Avoided calling stat() on all mount points at startup

Version 1.5

• New -xattr predicate to find files with extended attributes
• Fixed the -acl implementation on macOS
• Implemented depth-first (-S dfs) and iterative deepening search (-S ids)
• Piped -help output into $PAGER by default
• Fixed crashes on some invalid LS_COLORS values

Version 1.4.1

• Added a nicer error message when the tests are run as root
• Fixed detection of comparison expressions with signs, to match GNU find for things like -uid ++10
• Added support for https://no-color.org/
• Decreased the number of stat() calls necessary in some cases

Version 1.4

• New -unique option that filters out duplicate files (#40)
• Optimized the file coloring implementation
• Fixed the coloring implementation to match GNU ls more closely in many corner cases
  • Implemented escape sequence parsing for LS_COLORS
  • Implemented ln=target for coloring links like their targets
  • Fixed the order of fallbacks used when some color keys are unset
• Add a workaround for incorrect file types for bind-mounted files on Linux (#37)

Version 1.3.3

• Fixed unpredictable behaviour for empty responses to -ok/-okdir caused by an uninitialized string
• Writing to standard output now causes bfs to fail if the descriptor was closed
• Fixed incomplete file coloring in error messages
• Added some data flow optimizations
• Fixed -nogroup/-nouser in big directory trees
• Added -type w for whiteouts, as supported by FreeBSD find
• Re-wrote the -help message and manual page

Version 1.3.2

• Fixed an out-of-bounds read if LS_COLORS doesn't end with a :
• Allowed multiple debug flags to be specified like -D opt,tree