qBittorrent is an advanced and multi-platform BitTorrent client with a nice Qt4 user interface as well as a Web UI for remote control and an integrated search engine. qBittorrent aims to meet the needs of most users while using as little CPU and memory as possible.
Licence: Open Source
Whats new: >>FEATURE: Show external IP in the log. Closes #968. (sledgehammer999)
FEATURE: Enable gzip compression in the webui. It should be faster now. (sledgehammer999)
FEATURE: Torrents show more states(queued for checking, downloading metadata, allocating, checking resume). (sledgehammer999)
FEATURE: Reenable "force reannounce" to all trackers. (sledgehammer999)
FEATURE: Allow to clear the UI lock password. Closes #973. (sledgehammer999)
FEATURE: New translations: English(Australia) and English(United Kingdom)
BUGFIX: Expose all available translation in the WebUI. Closes #976. (sledgehammer999)
BUGFIX: Copy IP copied wrong data. Closes #970 (sledgehammer999)
BUGFIX: "Preview file..." didn't work on single file torrents. (sledgehammer999)
BUGFIX: Fix and improve the scheduler (Gelmir and sledgehammer999)
BUGFIX: RSS fixes. Closes #960, #998 (Gelmir)
BUGFIX: Fix 'append label to save path' with magnet links. (sledgehammer999)
BUGFIX: Can download up to 10MB .torrent file when a link is provided. Closes #879 (sledgehammer999)
OTHER: Updated translations.
LINUX: Fix missing conf.pri error (leigh123linux)
WINDOWS: Don't remove file associations if they aren't our own. (sledgehammer999)
http://qbittorrent.sourceforge.net/