Mantis is a web-based bugtracking system. It is in active development
and is no longer considered beta.

It is written in the PHP scripting language and requires the MySQL
database and a webserver. Mantis has been installed on Windows,
MacOS, OS/2, and a variety of Unix operating systems. Any web browser
should be able to function as a client. It is released under the
terms of the GNU General Public License (GPL).

Mantis is free to use and modify. It is free to redistribute as
long as you abide by the distribution terms of the GPL.

WWW: http://www.mantisbt.org/