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Xdelta 3.x readme.txt
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
Thanks for downloading Xdelta!
This directory contains the Xdelta3 command-line interface (CLI) and source
distribution for VCDIFF differential compression, a.k.a. delta
compression. The latest information and downloads are available here:
The command-line syntax:
Run 'xdelta3 -h' for brief help. Run 'xdelta3 test' for built-in tests.
Sample commands (like gzip, -e means encode, -d means decode)
xdelta3 -9 -S djw -e -vfs OLD_FILE NEW_FILE DELTA_FILE
File bug reports and browse open support issues here:
The source distribution contains the C/C++/Python APIs, Unix, Microsoft VC++
and Cygwin builds. Xdelta3 is covered under the terms of the GPL, see
Commercial inquiries welcome, please contact <>