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µTorrent 2.2.1 released


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We've released a new stable version of µTorrent, with a few fixes over 2.0, including Wine support again.

Download now!

Release Notes

We've added some new features to 2.2 improve the torrenting experience!

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


-- 2011-05-04: Version 2.2.1 (build 25249)

- promo

-- 2011-04-13: Version 2.2.1 (build 25203)

- Pioneer One episode 3 promo

-- 2011-03-30: Version 2.2.1 (build 25154)

- Change: added 'captive' promo

-- 2011-03-22: Version 2.2.1 (build 25130)

- Change: show red status icon if tracker goes down on private torrents regardless

- Fix: fixed an issue with the structure of the udp tracker announce packets

-- 2011-03-16: Version 2.2.1 (build 25113)

- Change: zenith promo

-- 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

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>The PEX message ...

Why don't you try it out, see for yourself... ;) It's probably a beta² release... :P

Packets' size seems to be higher - 1480B again with the new PMTUD... It'll probably decrease the overhead just a bit...

Lot's of retries tho... and connect attempts are too many for my poor 4 slots' setting :(

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Nice, auto-update got it for me so I'm ready to report (hope not too much) bugs :)

Just noticed: Removing (blanking out) webseeds will put in my log;

[2010-11-20 04:15:33]  some.nice.torrent.zip: HTTP invalid URL: 

So It's just telling me that 'nothing' is not a valid HTTP URL, even when seeding!

Edit 2: Why does µTorrent keeps banning himself? (when I do a 'reset bans' It will keeps printing; )

[2010-11-20 04:19:09]  Unbanned[2010-11-20 04:19:18]  Unbanned
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Wow, I reported that blanking out thing I've no idea how long ago.

Still not fixed :/

Were you planning on downloading from yourself exactly what you have? :P

Why use the regular banlist for it then? (and not a µT-global block/blacklist)

~Found some weird uploading habit


(Bursts of upload)


One of those bursts

I was uploading towards a µT 2.0.4

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I'm not sure if this is related to this new update or what is causing this, but I'm noticing that many of the connections are not being closed properly causing the network connection on the client running µT to stall.

running XP Pro, with peerblock and ESET Nod.

Running netstat -a shows a whole bunch of connections with status TIME_WAIT

closing µT for a while and restarting it fixes the issue for a short time, but the same problem comes back after a short while.

I've set µT to max 100 connections (not sure how many I can have), but when this happens I can barely open up google in a browser on a 100/10 MBit connection.

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@Bjurran: Have you referenced the chart in http://forum.utorrent.com/viewtopic.php?id=58404 relative to measured upload rate? That might be the first step to look at.

Thanks, but I'm using approx 1/3 of what I should have according to that chart. (I need to make sure I have bandwidth available to my servers)

Also, I would not suggest that anyone here in my area would try to use 500 connections as suggested in that chart, it just wont work.

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