Azureus implements the BitTorrent protocol using java language and comes bundled with many invaluable features for both beginners and advanced users:
* Multiple torrent downloads
* Upload and download speed limiting, both globally and per torrent
* Advanced seeding rules
* Adjustable disk cache
* Only uses one port for all the torrents
* UPnP sets the forward on your router
* Can use a proxy, for both tracker and peer communications
* Fast resume
* Can set a default download dir and move completed files
* Can import torrents automatically from a set dir
* Highly customizable interface
Changelog:
* Added method to XFS specific allocation of new files [Greg]
* Added per-torrent max seeds parameter [Parg]
* Added per-torrent max peers parameter [Parg]
* Total file size added to Open Torrent Window [TuxPaper]
* Option to show complete downloads with incomplete "do not download" files in the download area [TuxPaper]
* Added custom user comment field [amc1]
* Added file extension column in files view [amc1]
* Spinners for config field that take numbers [TuxPaper]
* Setting for Minimum # of Simultaneous Active Downloads to have running at any given time [TuxPaper]
* Console UI NAT test [Parg]
* Option to have separate rename and retarget menu items in Files view [amc1]
* Plugins can now create submenus. [amc1]
* Added code to allow plugins to get text input from a user in non-UI specific way. [amc1]
* Plugins now have better support to organise file data within default save directories. [amc1]
* Plugins can now easily add hyperlinks to config sections. ( view full changelog )