changelog: Run format_changelog.py

Changes in version 0.4.6.7 - 2021-08-16

  This version fixes several bugs from earlier versions of Tor, including one

  that could lead to a denial-of-service attack. Everyone running an earlier

  version, whether as a client, a relay, or an onion service, should upgrade

  to Tor 0.3.5.16, 0.4.5.10, or 0.4.6.7.

  This version fixes several bugs from earlier versions of Tor,

  including one that could lead to a denial-of-service attack. Everyone

  running an earlier version, whether as a client, a relay, or an onion

  service, should upgrade to Tor 0.3.5.16, 0.4.5.10, or 0.4.6.7.

  o Major bugfixes (cryptography, security):

    - Resolve an assertion failure caused by a behavior mismatch between

    - Regenerate fallback directories list. Close ticket 40447.

  o Minor features (geoip data):

    - Update the geoip files to match the IPFire Location Database,

      as retrieved on 2021/08/12.

    - Update the geoip files to match the IPFire Location Database, as

      retrieved on 2021/08/12.

  o Minor bugfix (crypto):

    - Disable the unused batch verification feature of ed25519-donna. Fixes

      bug 40078; bugfix on 0.2.6.1-alpha. Found by Henry de Valence.

    - Disable the unused batch verification feature of ed25519-donna.

      Fixes bug 40078; bugfix on 0.2.6.1-alpha. Found by Henry

      de Valence.

  o Minor bugfixes (onion service):

    - Send back the extended SOCKS error 0xF6 (Onion Service Invalid Address)

      for a v2 onion address. Fixes bug 40421; bugfix on 0.4.6.2-alpha.

    - Send back the extended SOCKS error 0xF6 (Onion Service Invalid

      Address) for a v2 onion address. Fixes bug 40421; bugfix

      on 0.4.6.2-alpha.

  o Minor bugfixes (relay):

    - Reduce the compression level for data streaming from HIGH to LOW in

      order to reduce CPU load on the directory relays. Fixes bug 40301;

      bugfix on 0.3.5.1-alpha.

    - Reduce the compression level for data streaming from HIGH to LOW

      in order to reduce CPU load on the directory relays. Fixes bug

      40301; bugfix on 0.3.5.1-alpha.

  o Minor bugfixes (timekeeping):

    - Calculate the time of day correctly on systems where the time_t

      type includes leap seconds. (This is not the case on most

      operating systems, but on those where it occurs, our tor_timegm

      function did not correctly invert the system's gmtime function,

      which could result in assertion failures when calculating

      voting schedules.)  Fixes bug 40383; bugfix on 0.2.0.3-alpha.

      which could result in assertion failures when calculating voting

      schedules.) Fixes bug 40383; bugfix on 0.2.0.3-alpha.

Changes in version 0.4.6.6 - 2021-06-30