librsync1 0.9.7-5 (amd64 binary) in ubuntu intrepid

 librsync implements the rsync remote-delta algorithm, which allows for
 efficient remote updates of a file, without requiring the old and new versions
 to both be present at the transmitter. The library uses a stream-based designed
 so that it can be easily embedded into network applications.
 .
 The main application at the moment is rproxy, but the library should eventually
 be generally useful.