What's new in 2.3.0.2
1. What's new in Azureus 2.3.0.2

This is primarily a bug/performance fix release. Of notable interest are:
  • JDK 1.4 compatability restored on Windows
  • Distributed Database bootstrap and IP change handling improved
  • Memory usage reduced
  • Thread usage for idle torrents reduced
  • Connection management improved for long-term connections and peer exchange
  • Console UI now supports alerting and version update checking

2. Full ChangeLog
http://azureus.sourceforge.net/changelog.php?version=2.3.0.2.