What's new in 2.5.0.2
1. What's new in Azureus 2.5.0.2

1.1 Less memory footprint
Most noteably, torrent piece information is now removed from memory when not used.

1.2 Minimum # of Simultaneous Active Downloads
The ability to always have at least x number of active downloads running.

1.3 New columns
  • Custom user comment (My Torrents view)
  • File extension (Files view)

1.4 Faster startup times on large lists
Startup times when Azureus has a large list of torrents is now faster (up to 400% faster in some cases).
Some plugins may negate this optimization if the plugin accesses every torrents information immediately at startup.

1.5 Other
  • Various user interface improvements.
  • Bug fixes.
  • Less memory leaks.

1.6 Java 5.0 note
Java 5, Update 10 fixes a handle leak commonly seen in Azureus installations. It is highly recommended that you upgrade to this version or a later version. You can download the update at http://java.com/en/download/manual.jsp

2. Full ChangeLog
http://azureus.sourceforge.net/changelog.php?version=2.5.0.2