(back to the SE development page)
Trac rests on top of Subversion, and provides
The strong point of Trac is that all the above are well integrated. You can refer to everything eveywhere in the system, eg refer to a source code line (of a specific revision) in a ticket, or to a ticket in a Wiki page. See http://devel.se.wtb.tue.nl/trac for a list of Trac's that are currently being used. Near the top-right is a Help/Guide link (in red) with the online manual of Trac.