Available from here:
http://www.jthink.com/jaikoz/jsp/beta/start.jsp
The main purpose of this release was to reduce how much memory Jaikoz uses, and to improve performance when dealing with large collections of songs. The amount of memory Jaikoz uses is still proportional to how many files are loaded, but it now uses less memory than previously and less additional memory when actually matching songs in Jaikoz.