The full changelog contains over 500 "interesting" changes and over 1000 commits. The RT UI has been redone in XHTML and CSS. Users have the ability to customize their RT home page and set their default search preferences. Basic reporting and charting, reminders on tickets, the ability to make custom fields link to and include content from other systems, and bulk updating of custom fields have been added.
This version includes dozens of enhancements and corrections to RT 3.0.2, which has been available since late May. Highlights include significantly enhanced support for non-ASCII character sets, much more robust handling of bogus input data, and massive performance improvements for some configurations.