Ikiwiki supports using several revision control systems for storing page histories.

Ikiwiki started out supporting only Subversion, but the interface ikiwiki uses to a revision control system is sufficiently simple and generic that it can be adapted to work with many systems by writing a plugin. Subversion is still a recommended choice; git is another well-tested option.

These are all the supported revision control systems:

Git
Posted Wed Mar 17 18:33:27 2010

mercurial
Posted Wed Mar 17 18:33:27 2010

tla
Posted Wed Mar 17 18:33:27 2010

monotone
Posted Wed Mar 17 18:33:27 2010

svn
Posted Wed Mar 17 18:32:47 2010

bzr
Posted Wed Mar 17 18:32:47 2010

There is a page with details about how the different systems work with ikiwiki, for the curious.