"The Unison development team at the University of Pennsylvania
has announced a new public release (version 2.5) of its file
synchronization tool for Unix and Windows systems. The new version
incorporates (among many other improvements) an implementation of
the "rsync protocol" for diffs-only propagation of small changes to
"The current release is available for immediate download
"Unison allows two replicas of a collection of files and
directories to be stored on different hosts (or different disks on
the same host), modified separately, and then brought up to date by
propagating the changes in each replica to the other. The
protocol for file transfers now incorporates a key algorithm from
Andrew Tridgell's popular rsync utility, allowing small changes
in large files to be reconciled by transmitting only a few bytes
over the network."
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