Redmine Hassle-free Issue Tracking Ciaran Jessup
Features (Out of the Box) Multiple Projects
Flexible role based access control
Flexible Issue tracking
Gantt chart & Calendar
News, documents & files management
Atom & e-mail Notifications
Per project Wiki & Forums Time tracking
Customisable fields across issues,projects & users
SCM Integration
Issue creation by e-mail
LDAP, OpenID and local authentication
Multiple language support
Runs on multiple databases
Installation Prerequisites Rails 2.1.2  (0.8.x)
Rails 2.3.4 Application (Trunk cut)

Hassle Free Issue tracking with redmine