-Plugins can be used to add additional features to ikiwiki. It's possible to
-[[write]] your own plugins, or you can install and use plugins contributed by
-others.
+Plugins can be used to add additional features to ikiwiki. Ikiwiki's
+backend RCS support is also pluggable, so support for new revision control
+systems can be added to ikiwiki. It's possible to [[write]] your own plugins,
+or you can install and use plugins contributed by others.