Subversion is a replacement for CVS which fills in a lot of the limitations of CVS such as versioned metadata, and allowing cp and mv of files without problem.

It deals with "change-sets" rather than CVS's changes to individual files, so that large changes can easily be rolled back.

My attempts at playing with subversion has been quite fascinating. The most important thing I learnt, is never try and version control a 1.1 gig binary file.

Subversion is considered quite alphaish at the moment, but I'm really looking forward to it being finished. -- PerryLorier

For detailed information read The Definitive Guide to Subversion. Also see http://subversion.tigris.org/