• Fixed Wine support
• Better support for atypical connections (such as VPNs) with Path MTU discovery
• Fixed SOCKS proxy support
• DHT security improvements

Changelog:

2011-03-09: Version 2.2.1 (build 25110)

• Change: Add a 'no' option to the 'set download location' 'overwrite' case that allows just changing the locaiton.

2011-03-07: Version 2.2.1 RC3 (build 25057)

• Fix: fixed edge case in OpenContainingFolder
• Fix: fixed memory leak in torrent refresh
• Fix: fixed reporting of speed test numbers in failure case

2011-03-04: Version 2.2.1 RC2 (build 25031)

• Fix: fixed sidebar counter refresh when deleting torrents

2011-02-28: Version 2.2.1 RC1 (build 24908)

• Fix: fixed some cases where the sidebar wouldn't be updated
• Change: Always show tray icon is always enabled to work around disappearing systray icon

2011-02-18: Version 2.2.1 beta (build 24796)

• Change: enable incoming IPv6 on Windows 7 SP1 (SP1 fixes an IPv6-related hang bug introduced in Windows 7)
• add torrent crash fix

2011-02-18: Version 2.2.1 beta (build 24763)

• Change: CPU usage optimization for the GUI thread
• Fix: create more space for strings in UI for translations

2011-02-11: Version 2.2.1 beta (build 24649)

• Change: use 11 asterixes instead of 6 for hashed passwords in settings dialog (in the hope to reduce confusion)
• Fix: systray icon not showing up when starting up minimized, and systray icon is not always on
• Fix: don't delete files when 'download to' and 'move to' directories are the same
• Feature: Support apps bundled with torrent file and install when source column clicked

2011-02-07: Version 2.2.1 beta (build 24567)

• Fix: balloon notifications didn't display
• Fix: tray tooltip showed 0 for everything
• Fix: fixed issue causing uTP to break
• Fix: fixed bug causing .!ut extensions to break and any operation that moved files
• Fix: uTP fast-resend bug

2011-02-03: Version 2.2.1 beta (build 24512)

• Change: improve logging for pex flood events and average over more messages
• Feature: enable disk congestion logic when disk cache is turned off
• Fix: socks5 proxy error handling would sometimes cause a freeze and infinite loop
• Fix: don't fall back on browser to download RSS torrents when proxy is used and non proxied connections are disabled
• Fix: episode numbers are no longer limited to 2 digits in torrent list
• Fix: fix copy bug in list views (would sometimes fail to copy certain fields)
• Fix: crash when deleting a torrent file that was added via magnet link
• Change: don't update RSS feeds just by opening the edit window
• Fix: UDP tracker fix for tracker returning incorrect scrape responses

2011-01-21: Version 2.2.1 beta (build 24266)

• Fix: frequent crash when opening the containing folder of a torrent
• Change: Run apps in standard mode (not IE7 compatibility mode)
• Fix: Remove erroneous scam MessageBox

2011-01-19: Version 2.2.1 beta (build 24217)

• Fix: fixed gui.graph_overhead
• Change: limit cache size to 2000 MB (for 32 bit builds)
• Fix: attempt at fixing disappearing systray icon
• Fix: Copy and paste in File list view fixed. (ctrl-A, ctrl-C, ctrl-V)
• Fix: don't attempt to open a file if it doesn't exist (caused association dialog to appear)
• Change: only apply the port > 1023 for outgoing connection restriction for peers only hear about through the DHT
• Fix: back-ported proper support for disabling udp trackers from 3.0
• Fix: fix bug in UDP socks5 support which would cause infinite loops
• Fix: Use system call to open containing folder instead of launching explorer.exe (when available)
• Fix: Don't connect to ports < 1024 when no-connect-to-services is enabled (which it is by default)
• Fix: privacy checkbox in general settings would have multiline text
• Change: add port 80 and 443 to the default port block list

2010-12-28: Version 2.2.1 beta (build 23984)

• Fix: fixed apps related (rare) crash bug
• Fix: crashbug in DHT (introduced by new rating feature)
• Fix: transparent background for play, source app and AV icons in torrent list

2010-12-20: Version 2.2.1 beta (build 23908)

• Fix: be less strict when banning peers for PEX flood
• Fix: timer issues
• Fix: possible crash during autoupdate

2010-12-17: Version 2.2.1 beta (build 23858)

• Fix: bug with empty ipfilter.dat

2010-12-17: Version 2.2.1 beta (build 23832)

• Fix: fixed IP filter bug where overlapping ranges would not be handled properly
• Fix: optimized CPU usage in GUI
• Fix: Find content item wasn't displaying properly on XP
• Fix: potential fix of disconnecting peers by "pex flood"
• Feature: DHT support for torrent rating (not user visible)
• Change: Only report a torrent as red because of tracker error if we don't have any peers

2010-12-03: Version 2.2.1 beta (build 23551)

• Fix: Ctrl+C on columns copied data incorrectly
• Fix: make the torrent add dialog look better on low-dpi screens
• Feature: Add a uTP delay measurement graph
• Fix: skinning bug for tabs.bmp

2010-11-19: Version 2.2.1 beta (build 23274)

• Fix: disable super verbose uTP logging

2010-11-19: Version 2.2.1 beta (build 23271)

• Fix: dynamic upload slots now take overhead into account
• Fix: fixed uTP reply_micro initialization bug
• Fix: running under wine again
• Fix: store checked for updates too often
• Fix: don't auto-update apps when they are disabled
• Fix: re-binding udp sockets after closing preferences caused slowdown on Win 7
• Fix: fixed and tuned PMTU discovery for uTP
• Fix: search box flickers when it should be hidden
• Fix: fixed exploit with open containing folder