Trac is an integrated system for managing software projects, an
enhanced wiki, a flexible web-based issue tracker, and an interface to
the Subversion revision control system. At the core of Trac lies an
integrated wiki and issue/bug database. Using wiki markup, all objects
managed by Trac can directly link to other issues/bug reports, code
changesets, documentation and files. Around the core lies other
modules, providing additional features and tools to make software
development more streamlined and effective.