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add the 0.2.1.20 changelog blurb, plus update the releasenotes

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Roger Dingledine 2009-11-17 15:35:14 -05:00
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12
ChangeLog
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@ -16,6 +16,18 @@ Changes in Version 0.2.1.21 - 20??-??-??
Changes in version 0.2.1.20 - 2009-10-15
Tor 0.2.1.20 fixes a crash bug when you're accessing many hidden
services at once, prepares for more performance improvements, and
fixes a bunch of smaller bugs.
The Windows and OS X bundles also include a more recent Vidalia,
and switch from Privoxy to Polipo.
The OS X installers are now drag and drop. It's best to un-install
Tor/Vidalia and then install this new bundle, rather than upgrade. If
you want to upgrade, you'll need to update the paths for Tor and Polipo
in the Vidalia Settings window.
o Major bugfixes:
- Send circuit or stream sendme cells when our window has decreased
by 100 cells, not when it has decreased by 101 cells. Bug uncovered

75
ReleaseNotes
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@ -3,6 +3,81 @@ This document summarizes new features and bugfixes in each stable release
of Tor. If you want to see more detailed descriptions of the changes in
each development snapshot, see the ChangeLog file.
Changes in version 0.2.1.20 - 2009-10-15
Tor 0.2.1.20 fixes a crash bug when you're accessing many hidden
services at once, prepares for more performance improvements, and
fixes a bunch of smaller bugs.
The Windows and OS X bundles also include a more recent Vidalia,
and switch from Privoxy to Polipo.
The OS X installers are now drag and drop. It's best to un-install
Tor/Vidalia and then install this new bundle, rather than upgrade. If
you want to upgrade, you'll need to update the paths for Tor and Polipo
in the Vidalia Settings window.
o Major bugfixes:
- Send circuit or stream sendme cells when our window has decreased
by 100 cells, not when it has decreased by 101 cells. Bug uncovered
by Karsten when testing the "reduce circuit window" performance
patch. Bugfix on the 54th commit on Tor -- from July 2002,
before the release of Tor 0.0.0. This is the new winner of the
oldest-bug prize.
- Fix a remotely triggerable memory leak when a consensus document
contains more than one signature from the same voter. Bugfix on
0.2.0.3-alpha.
- Avoid segfault in rare cases when finishing an introduction circuit
as a client and finding out that we don't have an introduction key
for it. Fixes bug 1073. Reported by Aaron Swartz.
o Major features:
- Tor now reads the "circwindow" parameter out of the consensus,
and uses that value for its circuit package window rather than the
default of 1000 cells. Begins the implementation of proposal 168.
o New directory authorities:
- Set up urras (run by Jacob Appelbaum) as the seventh v3 directory
authority.
- Move moria1 and tonga to alternate IP addresses.
o Minor bugfixes:
- Fix a signed/unsigned compile warning in 0.2.1.19.
- Fix possible segmentation fault on directory authorities. Bugfix on
0.2.1.14-rc.
- Fix an extremely rare infinite recursion bug that could occur if
we tried to log a message after shutting down the log subsystem.
Found by Matt Edman. Bugfix on 0.2.0.16-alpha.
- Fix an obscure bug where hidden services on 64-bit big-endian
systems might mis-read the timestamp in v3 introduce cells, and
refuse to connect back to the client. Discovered by "rotor".
Bugfix on 0.2.1.6-alpha.
- We were triggering a CLOCK_SKEW controller status event whenever
we connect via the v2 connection protocol to any relay that has
a wrong clock. Instead, we should only inform the controller when
it's a trusted authority that claims our clock is wrong. Bugfix
on 0.2.0.20-rc; starts to fix bug 1074. Reported by SwissTorExit.
- We were telling the controller about CHECKING_REACHABILITY and
REACHABILITY_FAILED status events whenever we launch a testing
circuit or notice that one has failed. Instead, only tell the
controller when we want to inform the user of overall success or
overall failure. Bugfix on 0.1.2.6-alpha. Fixes bug 1075. Reported
by SwissTorExit.
- Don't warn when we're using a circuit that ends with a node
excluded in ExcludeExitNodes, but the circuit is not used to access
the outside world. This should help fix bug 1090. Bugfix on
0.2.1.6-alpha.
- Work around a small memory leak in some versions of OpenSSL that
stopped the memory used by the hostname TLS extension from being
freed.
o Minor features:
- Add a "getinfo status/accepted-server-descriptor" controller
command, which is the recommended way for controllers to learn
whether our server descriptor has been successfully received by at
least on directory authority. Un-recommend good-server-descriptor
getinfo and status events until we have a better design for them.
Changes in version 0.2.1.19 - 2009-07-28
Tor 0.2.1.19 fixes a major bug with accessing and providing hidden
services.