Redmine is a free and open source, web-based project management and bug-tracking tool. It includes a calendar and Gantt charts to aid visual representation of projects and their deadlines. It handles multiple projects. Redmine provides integrated project management features, issue tracking, and support for various version control systems.
The design of Redmine is significantly influenced by Trac, a software package with some similar features.
Redmine is written using the Ruby on Rails framework. It is cross-platform and cross-database. It is part of the Bitnami app library that provides an installer and virtual machine for ease of deployment.
Redmine is reported to have more than 80 major installations worldwide. Among the users of Redmine are Gentoo's Summer of Code and Ruby.
Following concerns with the way the feedback and patches from the Redmine community were being handled a group of Redmine developers created a fork of the project in February 2011. The fork was initially named Bluemine, but changed to ChiliProject after.
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