The Distributed Concurrent Versioning System (DCVS) extends the
well-known version control system CVS and the file distribution and
synchronization program CVSup with functionality to distribute CVS
repositories with local lines of development and handle
synchronization of the distributed repositories automatically in the
background. Development lines (branches) are owned by a repository
server, repository servers efficiently update each other via CVSup,
and CVS ensures correct server use on checkin and branch creation.
