More 0.4.1.1-alpha hangelogs edits

  o Major features (flow control):

    - Implement authenticated SENDMEs as detailed in proposal 289. A

      SENDME cell now includes the digest of the traffic that it

      acknowledges, so that once end point receives the SENDME, it can

      confirm the other side's knowledge of the previous cells that were

      sent, and prevent certain types of denial-of-service attacks. This

      behavior is controlled by two new consensus parameters: see the

      proposal for more details. Fixes ticket 26288.

      acknowledges, so that once an end point receives the SENDME, it

      can confirm the other side's knowledge of the previous cells that

      were sent, and prevent certain types of denial-of-service attacks.

      This behavior is controlled by two new consensus parameters: see

      the proposal for more details. Fixes ticket 26288.

  o Major features (performance):

    - Our node selection algorithm now excludes nodes in linear time.

      Implements tickets 29023 and 29536.

  o Major bugfixes (onion service v3):

    - Fix an unreachable bug in which an introduction point would could

      try to send an INTRODUCE_ACK with a status code that Trunnel would

      refuse to encode, leading the relay to assert(). We've

      consolidated the ABI values into trunnel now. Fixes bug 30454;

      bugfix on 0.3.0.1-alpha.

    - Client can now handle unknown status codes from a INTRODUCE_ACK

    - Fix an unreachable bug in which an introduction point could try to

      send an INTRODUCE_ACK with a status code that Trunnel would refuse

      to encode, leading the relay to assert(). We've consolidated the

      ABI values into Trunnel now. Fixes bug 30454; bugfix

      on 0.3.0.1-alpha.

    - Clients can now handle unknown status codes from INTRODUCE_ACK

      cells. (The NACK behavior will stay the same.) This will allow us

      to extend status codes in the future without breaking the normal

      client behavior. Fixes another part of bug 30454; bugfix

  o Minor features (controller):

    - Add onion service version 3 support to the HSFETCH command.

      Previously, only version 2 onion services were supported. Closes

      ticket 25417. Patch by Neel Chauhan

      ticket 25417. Patch by Neel Chauhan.

  o Minor features (debugging):

    - Introduce tor_assertf() and tor_assertf_nonfatal() to enable

      cases. Closes ticket 29542.

  o Minor features (developer tools):

    - Tor's "practracker" test script nows check for files and functions

    - Tor's "practracker" test script now checks for files and functions

      that seem too long and complicated. Existing overlong functions

      and files are accepted for now, but should eventually be

      refactored. Closes ticket 29221.

  o Minor features (IPv6, v3 onion services):

    - Make v3 onion services put IPv6 addresses in service descriptors.

      Before this change, service descriptors only contained IPv4

      addressesd. Implements 26992.

      addresses. Implements 26992.

  o Minor features (modularity):

    - The "--disable-module-dirauth" compile-time option now disables

  o Minor features (testing):

    - Tor's unit test code now contains helper functions to replace the

      PRNG with a deterministic or reproducible version for testing.

      Previously, various tests did implemented this in various ways.

      Previously, various tests implemented this in various ways.

      Implements ticket 29732.

    - We now have a script, cov-test-determinism.sh, to identify places

      where our unit test coverage has become nondeterministic. Closes

      about to dump their status to a file. Previously, they set bridges

      as running in response to a GETINFO command, but those shouldn't

      modify data structures. Fixes bug 24490; bugfix on 0.2.0.13-alpha.

      Patch by Neel Chauhan

      Patch by Neel Chauhan.

  o Minor bugfixes (channel padding statistics):

    - Channel padding write totals and padding-enabled totals are now

      counted properly in relay extrainfo descriptors. Fixes bug 29231;

      bugfix on 0.3.1.1-alpha

      bugfix on 0.3.1.1-alpha.

  o Minor bugfixes (circuit padding):

    - Add a "CircuitPadding" torrc option to disable circuit padding.

      object. Fixes bug 29984; bugfix on 0.2.3.8-alpha.

  o Minor bugfixes (directory authority, ipv6):

    - If we are a directory authority with IPv6 and are marking relays

      as running, mark ourselves as reachable on IPv6. Fixes bug 24338;

      bugfix on 0.4.0.2-alpha. Patch by Neel Chauhan

    - Directory authorities with IPv6 support now always mark themselves

      as reachable via IPv6. Fixes bug 24338; bugfix on 0.4.0.2-alpha.

      Patch by Neel Chauhan.

  o Minor bugfixes (documentation):

    - Improve the documentation for using MapAddress with ".exit". Fixes

      that contain whitespace. Fixes bug 29635; bugfix on 0.2.3.18-rc.

  o Minor bugfixes (logging):

    - Do not log a warning when running with an OpenSSL version that

      that should be compatible with the one we were built with.

      Previously, we would warn whenever the version was different.

      Fixes bug 30190; bugfix on 0.2.4.2-alpha

    - Do not log a warning when running with an OpenSSL version other

      than the one Tor was compiled with, if the two versions should be

      compatible. Previously, we would warn whenever the version was

      different. Fixes bug 30190; bugfix on 0.2.4.2-alpha.

    - Warn operators when the MyFamily option is set but ContactInfo is

      missing, as the latter should be set too. Fixes bug 25110; bugfix

      on 0.3.3.1-alpha.

      rate-limiting, respond to the controller with a new response,

      "QUERY_RATE_LIMITED". Previously, we would log QUERY_NO_HSDIR for

      this case. Fixes bug 28269; bugfix on 0.3.1.1-alpha. Patch by

      Neel Chauhan

    - When relaunching a circuit to a rendevous service, mark the

      Neel Chauhan.

    - When relaunching a circuit to a rendezvous service, mark the

      circuit as needing high-uptime routers as appropriate. Fixes bug

      17357; bugfix on 0.4.0.2-alpha. Patch by Neel Chauhan

      17357; bugfix on 0.4.0.2-alpha. Patch by Neel Chauhan.

    - Stop ignoring IPv6 link specifiers sent to v3 onion services.

      (IPv6 support for v3 onion services is still incomplete: see

      ticket 23493 for details.) Fixes bug 23588; bugfix on

  o Minor bugfixes (onion services, performance):

    - When building circuits to onion services, call tor_addr_parse()

      less often. Previously, we called tor_addr_parse() in

      circuit_is_acceptable() even if its output it wasn't used. This

      circuit_is_acceptable() even if its output wasn't used. This

      change should improve performance when building circuits. Fixes

      bug 22210; bugfix on 0.2.8.12. Patch by Neel Chauhan

      bug 22210; bugfix on 0.2.8.12. Patch by Neel Chauhan.

  o Minor bugfixes (performance):

    - When checking whether a node is a bridge, use a fast check to make

      python3. Fixes bug 29913; bugfix on 0.2.5.3-alpha.

  o Minor bugfixes (relay):

    - If we are are a relay and have IPv6Exit to 1 while ExitRelay is

      auto, we act as if ExitRelay is 1. Previously, we ignored IPv6Exit

      if ExitRelay was 0 or auto. Fixes bug 29613; bugfix on

    - When running as a relay, if IPv6Exit is set to 1 while ExitRelay

      is auto, act as if ExitRelay is 1. Previously, we would ignore

      IPv6Exit if ExitRelay was 0 or auto. Fixes bug 29613; bugfix on

      0.3.5.1-alpha. Patch by Neel Chauhan.

  o Minor bugfixes (stats):

      relay subsystem. Closes ticket 30414.

    - Refactor and encapsulate parts of the codebase that manipulate

      crypt_path_t objects. Resolves issue 30236.

    - Refactor several places in our code that coverity incorrectly

    - Refactor several places in our code that Coverity incorrectly

      believed might have memory leaks. Closes ticket 30147.

    - Remove redundant return values in crypto_format, and the

      associated return value checks elsewhere in the code. Make the

  o Documentation:

    - Document how to find git commits and tags for bug fixes in

      CodingStandards.md. Update some changes file documentation. Closes

      CodingStandards.md. Update some file documentation. Closes

      ticket 30261.

  o Removed features: