Appendix B. Obsolete Appendix (was: Free Version Control Systems)

I used to maintain here a list of all the free software version control systems I knew anything about, with comments about some of them. While there is still experimentation in open source version control systems, at least for now we appear to have settled on a few standards: Git, primarily, and somewhat more rarely Mercurial and sometimes Subversion. My thoughts on which to choose for your project are already given in the section called “Choosing a Version Control System”, and it's not sustainable for me to maintain an increasingly out-of-date list of other version control systems that you are unlikely to use anyway. If you want a list, though, is a good place to start.