New Features:

• Core | Built in tracker support for multiple listen ports
• Core | Tracker support for multi-hash scrapes
• Core | Date added field added for hosted torrents
• Core | Alternate max upload rate limit when only seeding option
• Core | Ability to move a download's data files and torrent added
• Core | Added ability to turn off DHT originated IP Filter violation logs
• Core | When a peer is banned remove any data downloaded from it in partially complete pieces
• Core | Added lock banning feature when multiple bad peers found with close IPs
• Core | Support for platform-specific plugin update components
• Core | Support for .torrent file download using just infohash hex string (via DHT magnet lookup mechanism)
• Core | Added some control over initial share ratio for add for seeding downloads
• Core | Added feature to allow disabling of multi-hash tracker scrapes
• Core | Tracker connections respect bind-ip settings (http only)
• Core | Banned ips persisted across restart
• Core | Ability to add an alternative max-torrent-limit when seeding
• Core | DHT NAT punching for firewalled peers
• Core | Ability to rename and redirect files within a torrent
• Core | Compact storage for do not download files
• Core | Magnet URI protocol registration under windows
• Plug | UPnP plugin will warn if it discovers a router that has known protocol problems
• Plug | Magnet URI accessor method added to Torrent
• Plug | Added launchable plugins that can be used to start Azureus
• Plug | Added single-instance management function
• Plug | Made some platform-specific functions available to plugins
• Plug | Ability to add Swing based interfaces as plugin views
• UI | Console UI support for viewing specific plugin logs
• UI | Beginner configuration user mode provides a simplified interface
• UI | Support for --closedown parameter to org.gudy.azureus2.ui.swt.Main to closedown an existing AZ instance
• UI | Added Average Peer Completion percentage column to MyTorrents view and Details view
• UI | Added NAT status icon to status area
• UI | Indicate potential DHT port problems in SWT status area
• UI | Added swarm average to activity view plus a legend
• UI | Console support for listing shares improved, deleting of shares added

Changes:

• Core | Countermeasures against swarm DOS/poisoning
• Core | Health status for swarms where all known peers are connected now reported as OK
• Core | Friendly hash-checking option now only applied during recheck operations and delay based on piece size
• Core | Don't automatically remove directory contents shares if they (appear to) have been deleted
• Core | Improved algorithm for detecting DHT port reachability
• Core | DHT - removed cache-distance metrics and added value versions to handle value evolution correctly
• Core | Reduced thread count by aggregating async listener dispatchers
• Core | Major refactoring of Download and Disk managers
• Core | Download totals don't include hash fails and discards and aren't included in share-ratio calculation
• Core | Max simultaneous outbound connection attempts option no longer accepts zero as a disable value
• Core | Under OSX, new bundle launches using the Java Preferences application configured JVM, enabling JRE 5.0 support
• Core | Under Windows, now runs via a launcher built by exe4j - taskmanager process is now Azureus.exe
• Plug | Major refactoring of plugin interface to separate out UI-level and core-level stuff
• UI | Update to the latest release SWT library (3.1.1)

Corrected bugs:

• Core | Fix interested flag being set sometimes when seeding
• Core | Wrong file name returned for stopped simple torrents
• Core | Seeder/leecher counts missing for published torrents
• Core | Stats going negative for hosted torrent average up/down
• Core | Fix piece request ignore bug
• Core | Fixed DHT initialisation hang if port already in use
• Core | Don't allow prohibited peer sources to be enabled (ui artifact only)
• Core | Fixed too many socket selectors created when in safe selector mode
• Core | Fixed re-announce interval when receiving failure reason error response from tracker
• Core | Fixed and improved restarts under OSX (and linux)
• Core | Fixed and improved one-to-one LAN transfer speeds
• Plug | UPnP fix for picking up changed network interfaces
• UI | Fixed 100% CPU problem with download bars
• UI | Fixed UI foregrounding itself on every unverified localhost:6880 socket connection attempt
• UI | Create-torrent wizard fix for multi-torrent checkbox enabling error