fold in the recent changes files

Changes in version 0.2.2.16-alpha - 2010-09-1?

  o Major features:

    - If you configure your bridge with a known identity fingerprint,

      and the bridge authority is unreachable (as it is in at least

      one country now), fall back to directly requesting the descriptor

      from the bridge. Finishes the feature started in 0.2.0.10-alpha;

      closes bug 1138.

  o Major bugfixes (stream-level fairness):

    - When receiving a circuit-level SENDME for a blocked circuit, try

      to package cells fairly from all the streams that had previously

      been blocked on that circuit. Previously, we had started with the

      oldest stream, and allowed each stream to potentially exhaust

      the circuit's package window. This gave older streams on any

      given circuit priority over newer ones. Fixes bug 1937. Detected

      originally by Camilo Viecco. This bug was introduced before the

      first Tor release, in svn commit r152: it is the new winner of

      the longest-lived bug prize.

    - When the exit relay got a circuit-level sendme cell, it started

      reading on the exit streams, even if had 500 cells queued in the

      circuit queue already, so the circuit queue just grew and grew in

      Closes bug 1843. Suggested by katmagic.

    - When logging a rate-limited warning, we now mention how many messages

      got suppressed since the last warning.

    - Add new "perconnbwrate" and "perconnbwburst" consensus params to

      do individual connection-level rate limiting of clients. The torrc

      config options with the same names trump the consensus params, if

      both are present. Replaces the old "bwconnrate" and "bwconnburst"

      consensus params which were broken from 0.2.2.7-alpha through

      0.2.2.14-alpha. Closes bug 1947.

    - When a router changes IP address or port, authorities now launch

      a new reachability test for it. Implements ticket 1899.

    - Make the formerly ugly "2 unknown, 7 missing key, 0 good, 0 bad,

      2 no signature, 4 required" messages about consensus signatures

      easier to read, and make sure they get logged at the same severity

      as the messages explaining which keys are which. Fixes bug 1290.

    - Don't warn when we have a consensus that we can't verify because

      of missing certificates, unless those certificates are ones

      that we have been trying and failing to download. Fixes bug 1145.

    - If you configure your bridge with a known identity fingerprint,

      and the bridge authority is unreachable (as it is in at least

      one country now), fall back to directly requesting the descriptor

      from the bridge. Finishes the feature started in 0.2.0.10-alpha;

      closes bug 1138.

    - When building with --enable-gcc-warnings on OpenBSD, disable

      warnings in system headers. This makes --enable-gcc-warnings

      pass on OpenBSD 4.8.

  o Minor bugfixes:

    - Fix a regression introduced in 0.2.2.7-alpha that marked relays

      down if a directory fetch fails and you've configured either

      bridges or EntryNodes. The intent was to mark the relay as down

      _unless_ you're using bridges or EntryNodes, since if you are

      then you could quickly run out of entry points.

  o Minor bugfixes (on 0.2.1.x and earlier):

    - Authorities will now attempt to download consensuses if their

      own efforts to make a live consensus have failed. This change

      means authorities that restart will fetch a valid consensus, and

      were open. Bugfix on 0.2.1.26; fixes bug 1840. Thanks to mingw-san

      for analysis help.

    - Rate-limit "Failed to hand off onionskin" warnings.

    - Never relay a cell for a circuit we have already destroyed.

      Between marking a circuit as closeable and finally closing it,

      it may have been possible for a few queued cells to get relayed,

      even though they would have been immediately dropped by the next

      OR in the circuit. Fixes bug 1184; bugfix on 0.2.0.1-alpha.

    - Never queue a cell for a circuit that's already been marked

      for close.

    - Never vote for a server as "Running" if we have a descriptor for

      it claiming to be hibernating, and that descriptor was published

      more recently than our last contact with the server. Bugfix on

      0.2.0.3-alpha; fixes bug 911.

    - Squash a compile warning on OpenBSD. Reported by Tas; fixes

      bug 1848.

  o Minor bugfixes (on 0.2.2.x):

    - Fix a regression introduced in 0.2.2.7-alpha that marked relays

      down if a directory fetch fails and you've configured either

      bridges or EntryNodes. The intent was to mark the relay as down

      _unless_ you're using bridges or EntryNodes, since if you are

      then you could quickly run out of entry points.

    - Fix the Windows directory-listing code. A bug introduced in

      0.2.2.14-alpha could make Windows directory servers forget to load

      some of their cached v2 networkstatus files.

  o Minor bugfixes (compile fixes):

    - Squash a compile warning on OpenBSD. Reported by Tas; fixes

      bug 1848.

    - When building with --enable-gcc-warnings on OpenBSD, disable

      warnings in system headers. This makes --enable-gcc-warnings

      pass on OpenBSD 4.8.

    - Really allow clients to use relays as bridges. Fixes bug 1776;

      bugfix on 0.2.2.15-alpha.

    - Demote a warn to info that happens when the CellStatistics option

      was just enabled. Bugfix on 0.2.2.15-alpha; fixes bug 1921.

      Reported by Moritz Bartl.

    - On Windows, build correctly either with or without Unicode support.

      This is necessary so that Tor can support fringe platforms like

      Windows 98 (which has no Unicode), or Windows CE (which has no

      non-Unicode). Bugfix on 0.2.2.14-alpha. Fixes bug 1797.

      non-Unicode). Bugfix on 0.2.2.14-alpha; fixes bug 1797.

  o Testing

    - Add a unit test for cross-platform directory-listing code.

  o Minor bugfixes:

    - Never relay a cell for a circuit we have already destroyed.

      Between marking a circuit as closeable and finally closing it,

      it may have been possible for a few queued cells to get relayed,

      even though they would have been immediately dropped by the next

      OR in the circuit.  Fix 1184; bugfix on 0.2.0.1-alpha.

    - Never queue a cell for a circuit that's already been marked

      for close.

  o Minor bugfixes:

    - Really allow clients to use relays as bridges. Fixes bug 1776;

      bugfix on 0.2.2.15-alpha.

  o Minor features

    - When a router changes IP or port, authorities now launch a new

      reachability test for it.  (Implements ticket 1899)

  o Minor bugfixes:

    - Demote a warn to info that happens when the CellStatistics option

      was just enabled. Fixes bug 1921; bugfix on 0.2.2.15-alpha. Reported

      by Moritz Bartl.