Looks like BitTorrent v4 has been released. New clients for Windows, Mac and Linux.

From the release notes:

**2005-03-07: **4.0.0 is now available.
Changes since the last stable release:

*All new queue-based user interface *
*Many options are now modifiable from the interface, including upload rate *
*Lots of other interface improvements *
*Extra stats are visible, for those who like it *
*Remembers what it was doing across restarts *
*New .torrent maker "btmaketorrentgui" replaces "btcompletedir" *
*Better performance, as always *
*License has changed to the BitTorrent Open Source License *
*Torrent fields are correctly created and interpreted as utf8 *

  • *Too many little things to list *

*A few technical notes, for those interested: *

*Single port: launchmany can seed and client can download many files from a single port and thread *
*Interface now uses GTK instead of wxWidgets *

  • BitTorrent packets are marked as bulk data to make traffic shaping easier