Bugzilla is a popular bug tracking tool. The Bugzilla 3.1.x series will culminate in the release of Bugzilla 3.2. In addition to various useful bug fixes compared to 3.1.2, Bugzilla 3.1.3 contains major new features, such as an improved user interface, new custom field types, and very experimental support for Oracle. Bugzilla 3.1.3 is unstable, and should not be used in production environments. However, users are encouraged to test it and report bugs.