>From http://scam.xcf.berkeley.edu/~jmacd/xdelta.html

	       XDelta -- A binary delta generator

Announcing version 1.0 of XDelta.  XDelta is a library interface and
application program designed to compute changes between files.  These
changes (deltas) are similar to the output of the "diff" program in
that they may be used to store and transmit only the changes between
files.  However, unlike diff, the output of XDelta is not expressed in
a human-readable format--XDelta can also also apply these deltas to a
copy of the original file(s).  XDelta uses a fast, linear algorithm
and performs well on both binary and text files.  XDelta typically
outperforms GNU diff in both time and generated-delta-size, even for
plain text files.  XDelta also includes a simple implementation of the
Rsync algorithm and several advanced features for implementing
RCS-like file-archival upon.

This release, version 1.0, and future releases of XDelta can be found
at ftp://ftp.XCF.Berkeley.EDU/pub/xdelta.  HTML documentation and recent
developments are available online at

   http://www.XCF.Berkeley.EDU/~jmacd/xdelta.html.

XDelta is released under the GNU Library Public License (GPL).


