Appendix A. Free Version Control Systems

CVS's shortcomings have inspired many efforts to replace it, and in the last few years many of these projects have reached usability. CVS's days as the uncontested default choice are slowly coming to an end. Following are all the other open source version control systems I was aware of as of early 2005. The only one I use on a regular basis is Subversion, that's why it's listed first. I have no recommendations for or against any of the others; a lot of information here is taken from their web sites. See also http://en.wikipedia.org/wiki/List_of_revision_control_software.