Subversion is billed as a compelling replacement for Concurrent Versions System (CVS). Notes on migrating from CVS to Subversion.
Recommended reading: Subversion: The Definitive Guide and the Subversion FAQ.
Subversion also contains built in documentation, available via the help option:
$ svn help
…
$ svnadmin help
…
svnmailer - script to post subversion repository commit information by mail, news or XML.