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@@ -3,6 +3,81 @@ This document summarizes new features and bugfixes in each stable release
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of Tor. If you want to see more detailed descriptions of the changes in
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each development snapshot, see the ChangeLog file.
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+Changes in version 0.2.1.20 - 2009-10-15
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+ Tor 0.2.1.20 fixes a crash bug when you're accessing many hidden
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+ services at once, prepares for more performance improvements, and
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+ fixes a bunch of smaller bugs.
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+
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+ The Windows and OS X bundles also include a more recent Vidalia,
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+ and switch from Privoxy to Polipo.
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+
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+ The OS X installers are now drag and drop. It's best to un-install
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+ Tor/Vidalia and then install this new bundle, rather than upgrade. If
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+ you want to upgrade, you'll need to update the paths for Tor and Polipo
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+ in the Vidalia Settings window.
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+
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+ o Major bugfixes:
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+ - Send circuit or stream sendme cells when our window has decreased
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+ by 100 cells, not when it has decreased by 101 cells. Bug uncovered
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+ by Karsten when testing the "reduce circuit window" performance
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+ patch. Bugfix on the 54th commit on Tor -- from July 2002,
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+ before the release of Tor 0.0.0. This is the new winner of the
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+ oldest-bug prize.
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+ - Fix a remotely triggerable memory leak when a consensus document
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+ contains more than one signature from the same voter. Bugfix on
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+ 0.2.0.3-alpha.
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+ - Avoid segfault in rare cases when finishing an introduction circuit
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+ as a client and finding out that we don't have an introduction key
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+ for it. Fixes bug 1073. Reported by Aaron Swartz.
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+
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+ o Major features:
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+ - Tor now reads the "circwindow" parameter out of the consensus,
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+ and uses that value for its circuit package window rather than the
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+ default of 1000 cells. Begins the implementation of proposal 168.
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+
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+ o New directory authorities:
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+ - Set up urras (run by Jacob Appelbaum) as the seventh v3 directory
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+ authority.
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+ - Move moria1 and tonga to alternate IP addresses.
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+
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+ o Minor bugfixes:
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+ - Fix a signed/unsigned compile warning in 0.2.1.19.
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+ - Fix possible segmentation fault on directory authorities. Bugfix on
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+ 0.2.1.14-rc.
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+ - Fix an extremely rare infinite recursion bug that could occur if
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+ we tried to log a message after shutting down the log subsystem.
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+ Found by Matt Edman. Bugfix on 0.2.0.16-alpha.
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+ - Fix an obscure bug where hidden services on 64-bit big-endian
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+ systems might mis-read the timestamp in v3 introduce cells, and
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+ refuse to connect back to the client. Discovered by "rotor".
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+ Bugfix on 0.2.1.6-alpha.
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+ - We were triggering a CLOCK_SKEW controller status event whenever
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+ we connect via the v2 connection protocol to any relay that has
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+ a wrong clock. Instead, we should only inform the controller when
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+ it's a trusted authority that claims our clock is wrong. Bugfix
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+ on 0.2.0.20-rc; starts to fix bug 1074. Reported by SwissTorExit.
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+ - We were telling the controller about CHECKING_REACHABILITY and
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+ REACHABILITY_FAILED status events whenever we launch a testing
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+ circuit or notice that one has failed. Instead, only tell the
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+ controller when we want to inform the user of overall success or
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+ overall failure. Bugfix on 0.1.2.6-alpha. Fixes bug 1075. Reported
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+ by SwissTorExit.
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+ - Don't warn when we're using a circuit that ends with a node
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+ excluded in ExcludeExitNodes, but the circuit is not used to access
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+ the outside world. This should help fix bug 1090. Bugfix on
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+ 0.2.1.6-alpha.
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+ - Work around a small memory leak in some versions of OpenSSL that
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+ stopped the memory used by the hostname TLS extension from being
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+ freed.
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+
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+ o Minor features:
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+ - Add a "getinfo status/accepted-server-descriptor" controller
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+ command, which is the recommended way for controllers to learn
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+ whether our server descriptor has been successfully received by at
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+ least on directory authority. Un-recommend good-server-descriptor
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+ getinfo and status events until we have a better design for them.
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+
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+
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Changes in version 0.2.1.19 - 2009-07-28
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Tor 0.2.1.19 fixes a major bug with accessing and providing hidden
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services.
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Roger Dingledine