Vuze (formerly Azureus) implements the BitTorrent protocol using java language and comes bundled with many invaluable features for both beginners and advanced users.

Features:

• 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 directory.
• Highly customizable interface.
• IRC plugin included for quick help.
• Embedded tracker, host your own torrents, automate your shares (periodic scanning of a dir)...
• Distributed Hash Table: host on it a completely decentralised torrent and/or benefit from it when the tracker is offline.

Many useful plugins are available

• Auto-adjustment of your upload and download speeds according to your network charge with Autospeed.
• Auto-download torrents with RSS Feed Scanner.
• Schedule upload and download speed limits with Speed Scheduler.
• Receive a mail when a download finishes with Status Mailer.
• Add numerous info on torrents (Extra seeding columns, Country Locator)
• Remote control Vuze through the Swing Web Interface or the HTML Web Interface.

New in v4.2.0.4

• Subscription options for auto-starting auto-downloads
• Support for sharing .vuze files
• Added support for adding categories to transcoded content
• Added default transcode dir option
• Support for keep-alive and more gzip on web contexts
• Added percentage complete and eta to content descriptor
• UI displays while core initializes
• Plugin interface to the search functionality
• Added another non-standard RSS date format
• Allow HTTP seeding for simple torrents without knowledge of file name
• Keep log files open rather than continually opening and closing them
• Core | Improved reporting of 'no disk space' errors for FAT32
• Core | Improved logging performance
• Core | Support for updated via installer as opposed to incremental updates
• Work around for broken socket handling on freebsd7.x
• Recover from borked transcode queue config
• Fix xml stats export with undefined characters
• Support >2GB resource downloads
• Fixed HTTP seeding when switching content on a keep-alive connection
• Fix tracker announcer to pay attention to user options correctly
• Multi-file torrents were borked in content directory
• Set speeds in bits/sec when bits/sec display is selected