This update contains a big new feature - the ability to add a "public" face to your bug tracker. By simply adding a viewable=1 property to the ini file for your project, the general public can browse (along w/ filter, search) your bug database. They will not be able to add, edit, or delete, but they can view any bug.
For example, this links to the Lighthouse Bug Tracker project, and this links to an individual bug.
You can download Lighthouse here.
P.S. A bug with sorting on Owner was fixed as well.