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User-visible changes in duff
============================
Version 0.5.2
* Improved performance for both small and large file sets.
* Prefixed warning and error messages with program name.
* Changed sampling use the first n bytes of a file.
* Changed default sampling limit to zero (sample all files).
* Fixed broken manpage examples.
* Removed length limit on path names read from stdin.
Version 0.5.1
* Fixed crash where thorough mode cluster header used digest.
* Added a different default cluster header for thorough mode.
Version 0.5
-----------
* Added flag to handle null-terminated file names (-0).
* Added flag to select message digest function (-d).
* Improved handling of symbolic links to directories.
* Added internationalization via GNU gettext.
* Added complete Swedish translation.
* Added support for large files on more platforms.
* Fixed a number of bugs.
Version 0.4
-----------
* Added file name reading from stdin.
* Added primitive directory loop detection.
* Compatibility with more systems.
* Added physical mode flag (-p).
* Added argument symbolic link flag (-H).
* Improved warnings for sample limit flag (-l).
* Removed collection of symbolic links to files.
* Added reporting of access-protected empty files.
* Added example script for hard-linking duplicate files.
* Updated and improved manpage.
* Fixed a number of bugs.
Version 0.3.1
-------------
* Added flag to ignore empty files (-z).
* Fixed a number of bugs.
Version 0.3
-----------
* Added explicit link handling flags (-L,-P).
* Added sha1-asaddi for SHA1 checksum calculation.
* Completed basic manpage.
* Added sample size limit flag (-l).
* Added very brief hacking guide.
* Compatibility, portability, refactoring, cleanup.
* Added basic (non symlink-aware) excess mode (-e).
Version 0.2
-----------
* Added customisable cluster headers (-f).
* Split code into multiple files.
* Got SourceForge.net account (duff.sf.net).
* Added recursive flag (-r).
* Added quiet flag (-q).
* Started writing manpage.
Version 0.1
-----------
* Basic functionality.
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