Higher Level Tools

Trac (http://projects.edgewall.com/trac)

Minimalistic web-based software project management and bug/issue tracking system with version control interfaces and integrated Wiki support

Scmbug (http://freshmeat.net/projects/scmbug/)

Integration of Software Configuration Management with bug-tracking, supporting Subversion

Subissue (http://subissue.tigris.org/)

Track issues directly in your Subversion repository

Subwiki (http://subwiki.tigris.org/)

Wiki that uses Subversion for its data repository

svk (http://svk.elixus.org/)

Decentralized version control system based on Subversion

submaster (http://www.rocklinux.org/submaster.html)

System for distributed software development, based on Subversion