Simplemente uno de los mejores (sino el mejor) cliente de BitTorrent que existe. Plagado de opciones utiles e innovadoras. Al estar programado en Java puede ser utilizado en cualquier sistema operativo que tenga el JRE (Java Runtime Enviroment) instalado.

Download Azureus 2.5.0.0 Windows Installer
Download JRE 1.5 Update 6 para Windows

Sitio oficial de Azureus



2.5.0.0 - August 21, 2006

New Features:
Core | Reduced CPU usage, especially in some unusual conditions
Core | Explicit local subnet and peer injection option for Lan Peer Finder
Core | Auto upload speed
Core | DND completion handled better
Core | Added option for per-torrent max upload speed when upload busy
Core | Ranges allowed for port listing to ignore peers from.
Core | Added option to move completed download on removal
Core | Signed updates for increased security
Core | UDP fallback on connection fail
Core | Support for initial crypto tracker spec
Core | Faster queued torrent startup
Core | Option to disable tracker support for full-scrape
Core | Added ability to rename the directory save name for a multi-file torrent
UI | File pieces shown in files view
UI | Ability to best guess folder you want to save torrent data to based on existing torrents
UI | Filter for Config Options
UI | "Help -> Generate Debug Info" to help us solve bugs
UI | Ability to customise the speed intervals for download / upload speed menus
UI | Ability to rename the displayed title of a download
UI | "date added", "idle up", "idle down", "req in", "req out" colmns added to MyTorrents
UI | manual file recheck order
UI | Option to remember passwords
UI | OSX: Open .torrent files into Azureus via Finder/Desktop/etc
UI | Option to send popup message when download of a torrent (or individual file) has completed
UI | Ability to change behaviour of popups: auto-hide behaviour and adding timestamp to messages
UI | Torrent-info panel added to show MyTorrent's column attributes in a single place. Torrent encoding moved from General tab to here
UI | Progress warning to user when long file operations in progress that would otherwise hang the UI
Plug | Simple NAT-PMP implementation

Changes:
Core | Reduced starting many pieces instead of completing current ones
Core | Further modifications to optimistic disconnect algorithm
Core | Longer scrape delays:
Core | Asynchronous existing torrent loading at startup (makes startup feel faster)
Core | Disk read cache disabled by default
Core | Better detection of unix OSes (Linux, FreeBSD, Solaris, etc) and custom ports that do not conform to our install structure
UI | More time periods in folder-rescan list
UI | Option to hide toolbar
UI | Option to disable program icon for name column (may speed up OSX users)
Plug | Use UPnP to read external IP address if possible

Corrected bugs:
Core | Fix for pieces not completing due to too many snubbed peers
Core | Better handling of invalid peer/seed count from tracker
Core | ed2k hash wrong on block boundaries
Core | upload slot default now applied correctly (was fixed at torrent add time)
Core | Various seeding rules fixes, mostly related to Seed:Peer ratio, 1st Priority, or 'None' ranking mode
UI | speed graphics failing on high speeds
UI | Per-torrent options view now synced with global defaults and has "reset" button
UI | Slide-in alert message not closeable (GTK+ users)


Actualizado Azu 2.5.0.0

tengo un problema con este rpograma, me esta bajando muy lento, los puertos que tengo osn estos

tcp 51645
udp 52146

los tengo que abrir o cambiar?, mi conexion es de fibertel 3 megas