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[tor-commits] [tor/master] Start a changelog for 0.3.5.1-alpha



commit b96e2ab341f8532a921859a490f6ce7ab1c39a4c
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Mon Sep 17 09:10:18 2018 -0400

    Start a changelog for 0.3.5.1-alpha
---
 ChangeLog                  | 441 ++++++++++++++++++++++++++++++++++++++++++++-
 changes/27186              |   4 -
 changes/NSS                |   7 -
 changes/bug15518           |   6 -
 changes/bug17873           |   6 -
 changes/bug18642           |   5 -
 changes/bug20874           |   7 -
 changes/bug21530           |   7 -
 changes/bug22156           |   3 -
 changes/bug24104           |   4 -
 changes/bug24312           |   4 -
 changes/bug25477           |   3 -
 changes/bug25505           |   3 -
 changes/bug25552           |   5 -
 changes/bug25886           |   7 -
 changes/bug26152           |   4 -
 changes/bug26223           |   3 -
 changes/bug26282           |   4 -
 changes/bug26367           |   5 -
 changes/bug26437           |   3 -
 changes/bug26470           |   4 -
 changes/bug26488           |   4 -
 changes/bug26502           |   3 -
 changes/bug26522           |   6 -
 changes/bug26525           |   4 -
 changes/bug26882           |   5 -
 changes/bug26892           |   6 -
 changes/bug26896           |   3 -
 changes/bug26979           |   4 -
 changes/bug26986           |   3 -
 changes/bug27034           |   6 -
 changes/bug27044           |   5 -
 changes/bug27096           |   3 -
 changes/bug27165           |   4 -
 changes/bug27224           |   5 -
 changes/bug27237           |   4 -
 changes/bug27335           |   4 -
 changes/bug27428           |   3 -
 changes/bug27464           |   3 -
 changes/bug27649           |   4 -
 changes/bug27658           |   6 -
 changes/bug27687           |   4 -
 changes/bug27708           |   4 -
 changes/doc26588           |   3 -
 changes/doc26638           |   4 -
 changes/doc26908           |   4 -
 changes/feature19506       |   3 -
 changes/feature25132       |   3 -
 changes/feature26815       |   3 -
 changes/feature26816       |  11 --
 changes/feature8323        |   3 -
 changes/full_include_paths |   3 -
 changes/geoip-2018-09-06   |   4 -
 changes/iphplapi           |   4 -
 changes/split_or_h         |   5 -
 changes/ticket19979        |   3 -
 changes/ticket20424        |   5 -
 changes/ticket21349        |   6 -
 changes/ticket23846        |   5 -
 changes/ticket24204        |   5 -
 changes/ticket25573        |   5 -
 changes/ticket25928        |   4 -
 changes/ticket26426        |   4 -
 changes/ticket26427        |   6 -
 changes/ticket26447        |   5 -
 changes/ticket26481        |  12 --
 changes/ticket26492        |   4 -
 changes/ticket26510        |   4 -
 changes/ticket26526        |   4 -
 changes/ticket26526_extra  |   3 -
 changes/ticket26527        |   3 -
 changes/ticket26560        |   3 -
 changes/ticket26626        |   3 -
 changes/ticket26663        |   3 -
 changes/ticket26703        |   3 -
 changes/ticket26947        |   3 -
 changes/ticket27040        |   5 -
 changes/ticket27169        |   6 -
 changes/ticket27211        |   3 -
 changes/ticket27215        |   9 -
 changes/ticket27246        |   4 -
 changes/ticket27247        |   5 -
 changes/ticket27252        |   6 -
 changes/ticket27252-032    |   5 -
 changes/ticket27252-034    |   3 -
 changes/ticket27467        |   3 -
 changes/ticket27547        |   7 -
 changes/ticket27630        |   3 -
 changes/ticket27678        |   5 -
 changes/ticket3569_part1   |   6 -
 changes/ticket3723         |   3 -
 changes/ticket8415         |   4 -
 92 files changed, 440 insertions(+), 408 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b068cc49b..494a0403b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,442 @@
+Changes in version 0.3.5.1-alpha-2018-09-??
+  BLURB HERE. NOTE ABOUT NSS.
+
+  o Major features (experimental, library support):
+    - Tor now has _partial_ support for using the NSS cryptography
+      library in place of OpenSSL. When Tor is configured with
+      --enable-nss, it will use NSS for several (but not yet all) of its
+      cryptography. (It still relies on OpenSSL for the rest.)
+      Eventually, if all goes as planned, "--enable-nss" will produce a
+      version of Tor that does not depend on OpenSSL. Implements ticket
+      26816. WARNING: This feature is experimental. Don't use it for
+      real security yet, until the code has had much more review, and
+      more bugs have been shaken out.
+    - When built with --enable-nss, Tor now uses the NSS library for
+      digests, AES, and pseudorandom numbers. Closes ticket 26815.
+
+  o Major features (hidden service v3):
+    - Implement client authorization at the descriptor level. A new
+      torrc option was added to control this client side:
+      ClientOnionAuthDir <path>. On the service side, if the
+      "authorized_clients/" directory exists in the onion service
+      directory path, client configuration are read from the files
+      within. See the manpage for more details. Closes ticket 27547.
+      Patch done by Suphanat Chunhapanya (haxxpop).
+
+  o Major features (hidden service):
+    - For a newly created hidden service, the default version is now 3.
+      Tor still supports version 2 service but the operator now needs to
+      specifically set "HiddenServiceVersion 2" in order to create a new
+      service. For existing services, tor now learns the version by
+      reading the key file so the HiddenServiceVersion is not mandatory
+      in that case. Closes ticket 27215.
+
+  o Major features (new code layout):
+    - Nearly all of Tor's source code has been moved around into more
+      logical places. The "common" directory is now divided into a set
+      of libraries in "lib", and files in the "or" directory have been
+      split into "core" (logic absolutely needed for onion routing),
+      "feature" (independent modules in Tor), and "app" (to configure
+      and invoke the rest of Tor). See doc/HACKING/CodeStructure.md for
+      more information. Closes ticket 26481.
+
+      This refactoring is not complete: although the libraries have been
+      refactored to be acyclic, the main body of Tor is still too
+      interconnected. We will attempt to improve this in the future.
+
+  o Major features (onion services):
+    - Improve revision counter generation in next-gen onion services.
+      Onion services can now scale by hosting multiple instances on
+      different hosts without synchronization between them, which was
+      previously impossible because descriptors would get rejected by
+      HSDirs. Addresses ticket 25552.
+
+  o Major features (portability, cryptography, experimental, TLS):
+    - Tor now has the option to compile with the NSS library instead of
+      OpenSSL. This feature is experimental, and we expect that bugs may
+      remain. It is mainly intended for environments where Tor's
+      performance is not CPU-bound, and where NSS is already known to be
+      installed. To try it out, configure Tor with the --enable-nss
+      flag. Closes ticket 26631.
+
+  o Major features (relay):
+    - Relays no longer run as exits by default. If the "ExitRelay"
+      option is auto (or unset), and no exit policy is specified with
+      ExitPolicy or ReducedExitPolicy, we now treat ExitRelay as 0.
+      Previously in this case, we allowed exit traffic and logged a
+      warning message. Closes ticket 21530. Patch by Neel Chauhan.
+
+  o Major bugfixes (directory authority):
+    - Actually check that address we get from DirAuthority configuration
+      line is valid IPv4. Explicitly disallow DirAuthority adress to be
+      DNS hostname. Fixes bug 26488; bugfix on 0.1.2.10-rc.
+
+  o Major bugfixes (restart-in-process):
+    - Fix a use-after-free error that could be caused by passing Tor an
+      impossible set of options that would fail during options_act().
+      Fixes bug 27708; bugfix on 0.3.3.1-alpha.
+
+  o Minor features (admin tools):
+    - Add new tool that prints expiration date of signing cert in
+      ed25519_signing_cert. Resolves issue 19506.
+
+  o Minor features (bootstrap):
+    - Improve user experience by deferring directory progress reporting
+      until after a connection to a relay or bridge has succeeded. This
+      avoids reporting 80% progress based on cached directory
+      information when we can't even connect to a bridge or relay.
+      Closes ticket 27169.
+
+  o Minor features (build):
+    - If you pass the "--enable-pic" option to configure, Tor will try
+      to tell the compiler to build position-independent code suitable
+      to link into a library. (The default remains -fPIE, for code
+      suitable for a relocatable executable.) Closes ticket 23846.
+
+  o Minor features (code correctness, testing):
+    - Tor's build process now includes a "check-includes" make target to
+      verify that no module of Tor relies on any headers from a higher-
+      level module. We hope to use this feature over time to help
+      refactor our codebase. Closes ticket 26447.
+
+  o Minor features (code layout):
+    - Make a new lowest-level error-handling API for use by code invoked
+      from within the logging module. This interface it makes it so the
+      logging code is no longer at risk of calling into itself if a
+      failure occurs while trying to log something. Closes ticket 26427.
+
+  o Minor features (compilation):
+    - Tor's configure script now supports a --with-malloc= option to
+      select your malloc implementation. Supported options are
+      "tcmalloc", "jemalloc", "openbsd" (deprecated), and "system" (the
+      default). Addresses part of ticket 20424. Based on a patch from
+      Alex Xu.
+
+  o Minor features (continuous integration):
+    - Don't do a distcheck with --disable-module-dirauth in Travis.
+      Implements ticket 27252.
+    - Install libcap-dev and libseccomp2-dev so these optional
+      dependencies get tested on Travis CI. Closes ticket 26560.
+    - Only run one online rust build in Travis, to reduce network
+      errors. Skip offline rust builds on Travis for Linux gcc, because
+      they're redundant. Implements ticket 27252.
+    - Skip gcc on OSX in Travis CI, it's rarely used. Skip a duplicate
+      hardening-off build in Travis on Tor 0.2.9. Skip gcc on Linux with
+      default settings, because all the non-default builds use gcc on
+      Linux. Implements ticket 27252.
+
+  o Minor features (controller):
+    - Emit CIRC_BW events as soon as we detect that we processed an
+      invalid or otherwise dropped cell on a circuit. This allows
+      vanguards and other controllers to react more quickly to dropped
+      cells. Closes ticket 27678.
+    - For purposes of CIRC_BW-based dropped cell detection, track half-
+      closed stream ids, and allow their ENDs, SENDMEs, DATA and path
+      bias check cells to arrive without counting it as dropped until
+      either the END arrvies, or the windows are empty. Closes
+      ticket 25573.
+    - Implement 'GETINFO md/all' controller command to enable getting
+      all known microdesriptors. Closes ticket 8323.
+    - The GETINFO command now support an "uptime" argument, to return
+      Tor's uptime in seconds. Closes ticket 25132.
+
+  o Minor features (denial-of-service avoidance):
+    - Make our OOM handler aware of the DNS cache so that it doesn't
+      fill up the memory. This check is important for our DoS mitigation
+      subsystem. Closes ticket 18642. Patch by Neel Chauhan
+
+  o Minor features (development):
+    - Copy paragraph and URL to Tor's code of conduct document from
+      CONTRIBUTING to new CODE_OF_CONDUCT file. Resolves ticket 26638.
+    - Tor's makefile now supports running the "clippy" Rust style tool
+      on our Rust code. Closes ticket 22156.
+
+  o Minor features (directory authority):
+    - There is no longer an artificial upper limit on the length of
+      bandwidth lines. Closes ticket 26223.
+    - When a bandwidth file is used to obtain the bandwidth measurements,
+      include this bandwidth file headers in the votes. Closes
+      ticket 3723.
+
+  o Minor features (directory):
+    - Improved support for networks with only a single authority or a
+      single fallback directory. Patch from Gabriel Somlo. Closes
+      ticket 25928.
+
+  o Minor features (embedding API):
+    - The Tor controller API now supports a function to launch Tor with
+      a preconstructed owning controller FD, so that embedding
+      applications don't need to manage controller ports and
+      authentication. Closes ticket 24204.
+
+  o Minor features (geoip):
+    - Update geoip and geoip6 to the September 6 2018 Maxmind GeoLite2
+      Country database. Closes ticket 27631.
+
+  o Minor features (in-process API):
+    - The tor_api now has a function that returns the name and version
+      of the backend implementing the API. Closes ticket 26947.
+
+  o Minor features (memory management):
+    - Get libevent code to use the same memory allocator that Tor code
+      is using by calling event_set_mem_functions() during
+      initialization. Resolves ticket 8415.
+
+  o Minor features (memory usage):
+    - When not using them, store legacy TAP public onion keys in DER-
+      encoded format, rather than as expanded public keys. This should
+      save several megabytes on typical clients. Closes ticket 27246.
+
+  o Minor features (openssl):
+    - When possible, use RFC5869 HKDF implementation from OpenSSL.
+      Resolves ticket 19979.
+
+  o Minor features (rust, code quality):
+    - Improve rust code quality in the Rust protover implementation by
+      making it more idiomatic. Includes changing an internal API to
+      take &str instead of &String. Closes ticket 26492.
+
+  o Minor features (testing):
+    - Add scripts/test/chutney-git-bisect.sh, for bisecting using
+      chutney. Implements ticket 27211.
+
+  o Minor features (tor-resolve):
+    - The tor-resolve utility can now be used with IPv6 SOCKS proxies.
+      Side-effect of the refactoring for ticket 26526.
+
+  o Minor features (UI):
+    - Log each included configuration file or directory as we read it,
+      to provide more visibility about where Tor is reading from. Patch
+      from Unto Sten; closes ticket 27186.
+
+  o Minor features(config):
+    - The "auto" keyword in torrc is now case insensitive. Closes
+      ticket 26663.
+
+  o Minor bugfixes (security):
+    - Refrain from potentially insecure usage of strncat() in
+      configure_backtrace_handler(). Use snprintf() instead. Fixes bug
+      26522; bugfix on a969ce464dc23db39725a891d60537f3d3e51b50 (not in
+      any tor release).
+
+  o Minor bugfixes (appveyor ci):
+    - Improve Appveyor CI IRC logging. Generate correct branches and
+      URLs for pull requests and tags. Use unambiguous short commits.
+      Fixes bug 26979; bugfix on master.
+
+  o Minor bugfixes (bootstrap):
+    - Try harder to get descriptors in non-exit test networks, by using
+      the mid weight for the third hop when there are no exits. Fixes
+      bug 27237; bugfix on 0.2.6.2-alpha.
+
+  o Minor bugfixes (C correctness):
+    - Avoid casting smartlist index to int implicitly, as it may trigger
+      a warning (-Wshorten-64-to-32). Fixes bug 26282; bugfix on
+      0.2.3.13-alpha, 0.2.7.1-alpha and 0.2.1.1-alpha.
+    - Use time_t for all values in
+      predicted_ports_prediction_time_remaining(). Rework the code that
+      computes difference between durations/timestamps. Fixes bug 27165;
+      bugfix on 0.3.1.1-alpha.
+
+  o Minor bugfixes (client, memory usage):
+    - When not running as a directory cache, there is no need to store
+      the text of the current consensus networkstatus in RAM.
+      Previously, however, clients would store this anyway, at a cost of
+      over 5 MB. Now, they do not. Fixes bug 27247; bugfix
+      on 0.3.0.1-alpha.
+
+  o Minor bugfixes (client, reachableaddresses):
+    - Instead of adding an "reject *:*" line to ReachableAddresses when
+      loading the configuration, add one to the policy after parsing it
+      in parse_reachable_addresses(). This prevents extra "reject *.*"
+      lines from accumulating on reloads. Fixes bug 20874; bugfix on
+      0.3.5.1-alpha. Patch by Neel Chauhan.
+
+  o Minor bugfixes (code quality):
+    - Rename sandbox_getaddrinfo() and other functions to no longer
+      misleadingly suggest that they are sandbox-only. Fixes bug 26525;
+      bugfix on 0.2.7.1-alpha.
+
+  o Minor bugfixes (compilation):
+    - Use Windows-compatible format strings in tor-print-ed-signing-
+      cert.c. Fixes bug 26986; bugfix on master.
+
+  o Minor bugfixes (configuration, Onion Services):
+    - In rend_service_parse_port_config(), disallow any input to remain
+      after address-port pair was parsed. This will catch address and
+      port being whitespace-separated by mistake of the user. Fixes bug
+      27044; bugfix on 0.2.9.10.
+
+  o Minor bugfixes (continuous integration):
+    - Stop reinstalling identical packages in our Windows CI. Fixes bug
+      27464; bugfix on 0.3.4.1-alpha.
+
+  o Minor bugfixes (controller):
+    - Consider all routerinfo errors other than "not a server" to be
+      transient for the purpose of "GETINFO exit-policy/*" controller
+      request. Print stacktrace in the unlikely case of failing to
+      recompute routerinfo digest. Fixes bug 27034; bugfix
+      on 0.3.4.1-alpha.
+
+  o Minor bugfixes (directory connection shutdown):
+    - Avoid a double-close when shutting down a stalled directory
+      connection. Fixes bug 26896; bugfix on 0.3.4.1-alpha.
+
+  o Minor bugfixes (hidden service v2):
+    - Demote a log warning to info in case we do not have a consensus
+      when a .onion request comes in. This can happen while bootstrapping
+      for instance. The request will follow through after so we really
+      don't need to warn the user loudly. Fixes bug 27040; bugfix
+      on 0.2.8.2-alpha.
+
+  o Minor bugfixes (hidden service v3):
+    - In case the hidden service directory can't be created or has wrong
+      permissions, do not BUG() on it which lead to a non fatal
+      stacktrace. Fixes bug 27335; bugfix on 0.3.2.1.
+
+  o Minor bugfixes (HTTP tunnel):
+    - Fix a bug warning when closing an HTTP tunnel connection due to an
+      HTTP request we couldn't handle. Fixes bug 26470; bugfix
+      on 0.3.2.1-alpha.
+
+  o Minor bugfixes (ipv6):
+    - In addrs_in_same_network_family(), we choose the subnet size based
+      on the IP version (IPv4 or IPv6). Previously, we chose a fixed
+      subnet size of /16 for both IPv4 and IPv6 addresses. Fixes bug
+      15518; bugfix on 0.3.5.1-alpha. Patch by Neel Chauhan.
+
+  o Minor bugfixes (logging):
+    - As a precaution, do an early return from log_addr_has_changed() if
+      Tor is running as client. Also, log a stack trace for debugging as
+      this function should only be called when Tor runs as server. Fixes
+      bug 26892; bugfix on 0.1.1.9-alpha.
+    - Refrain from mentioning bug 21018, as it is already fixed. Fixes
+      bug 25477; bugfix on 0.2.9.8.
+
+  o Minor bugfixes (logging, documentation):
+    - When SafeLogging is enabled, scrub IP address in
+      channel_tls_process_netinfo_cell(). Also, add a note to manpage
+      that scrubbing is not guaranteed on loglevels below Notice. Fixes
+      bug 26882; bugfix on 0.2.4.10-alpha.
+
+  o Minor bugfixes (netflow padding):
+    - Ensure circuitmux queues are empty before scheduling or sending
+      padding. Fixes bug 25505; bugfix on 0.3.1.1-alpha.
+
+  o Minor bugfixes (OS compatibility):
+    - On Linux and Windows properly handle configuration change that
+      moves a listener to/from wildcard IP address. In case first
+      attempt to bind a socket fails, close the old listener and try
+      binding a socket again. Fixes bug 17873; bugfix on 0.0.8pre-1.
+
+  o Minor bugfixes (performance)::
+    - Rework node_is_a_configured_bridge() to no longer call
+      node_get_all_orports(), which was performing too many memory
+      allocations. Fixes bug 27224; bugfix on 0.2.3.9.
+
+  o Minor bugfixes (relay statistics):
+    - Update relay descriptor on bandwidth changes only when the uptime
+      is smaller than 24h in order to reduce the efficiency of guard
+      discovery attacks. Fixes bug 24104; bugfix on 0.1.1.6-alpha.
+
+  o Minor bugfixes (relay):
+    - In frac_nodes_with_descriptors(), add for_direct_connect, and
+      replace node_has_any_descriptor() with
+      node_has_preferred_descriptor(). Also, if we are using bridges and
+      there is at least one bridge with a full descriptor, set f_guard
+      in compute_frac_paths_available() to 1.0. Fixes bug 25886; bugfix
+      on 0.3.5.1-alpha. Patch by Neel Chauhan.
+
+  o Minor bugfixes (relays):
+    - Since 0.3.3.5-rc, authorities require DirCache (V2Dir) for the
+      Guard flag. Update the message logged on relays when DirCache is
+      disabled. Fixes bug 24312; bugfix on 0.3.3.5-rc.
+
+  o Minor bugfixes (rust):
+    - The protover rewrite in 24031 allowed repeated votes from the same
+      voter for the same protocol version to be counted multiple times
+      in protover_compute_vote(). Fixes bug 27649; bugfix on 0.3.3.5-rc.
+    - protover parsed and accepted unknown protocol names containing
+      invalid characters outside the range [A-Za-z0-9-]. Fixes bug
+      27687; bugfix on 0.3.3.1-alpha.
+
+  o Minor bugfixes (testing):
+    - Fix two unit tests to work when HOME environment variable is not
+      set. Fixes bug 27096; bugfix on 0.2.8.1-alpha.
+    - If a unit test running in a subprocess exits abnormally or with a
+      nonzero status code, treat the test as having failed, even if the
+      test reported success. Without this fix, memory leaks don't cause
+      cause the tests to fail, even with LeakSanitizer. Fixes bug 27658;
+      bugfix on 0.2.2.4-alpha.
+    - When logging a version mismatch in our openssl_version tests,
+      report the actual offending version strings. Fixes bug 26152;
+      bugfix on 0.2.9.1-alpha.
+
+  o Minor bugfixes (torrc):
+    - Tor now validates that the ContactInfo config option is valid UTF-
+      8 when parsing torrc. Fixes bug 27428; bugfix on 0.0.8pre1.
+
+  o Code simplification and refactoring:
+    - 'updateFallbackDirs.py' now ignores the blacklist file as it's not
+      longer needed Closes ticket 26502.
+    - Include paths to header files within Tor are now qualified by
+      directory within the top-level src directory.
+    - Low log level of "Scheduler type KIST has been enabled" to INFO.
+      Ticket 26703
+    - Many structures have been removed from the centralized "or.h"
+      header, and moved into their own headers. This will allow us to
+      reduce the number of places in the code that rely on each
+      structure's contents and layout. Closes ticket 26383.
+    - Remove ATTR_NONNULL macro from codebase. Resolves ticket 26527.
+    - Remove GetAdaptersAddresses_fn_t. The code that used it was
+      removed as part of the 26481 refactor. Closes ticket 27467.
+    - Rework Tor SOCKS server code to use Trunnel and benefit from
+      autogenerated functions for parsing and generating SOCKS wire
+      format. New implementation is cleaner, more maintainable and
+      should be less prone to heartbleed-style vulnerabilities.
+      Implements a significant fraction of ticket 3569.
+    - Split sampled_guards_update_from_consensus() and
+      select_entry_guard_for_circuit() into subfunctions. In
+      entry_guards_update_primary() unite three smartlist enumerations
+      into one and move smartlist comparison code out of the function.
+      Closes ticket 21349.
+    - Tor now assumes that you have standards-conformant stdint.h and
+      inttypes.h headers when compiling. Closes ticket 26626.
+    - Unify our bloom filter logic. Previously we had two copies of this
+      code: one for routerlist filtering, and one for address set
+      calculations. Closes ticket 26510.
+    - Use the simpler strcmpstart() helper in
+      rend_parse_v2_service_descriptor instead of strncmp(). Closes
+      ticket 27630.
+    - Utility functions that can perform a DNS lookup are now wholly
+      separated from those that can't, in separate headers and C
+      modules. Closes ticket 26526.
+
+  o Documentation:
+    - Remove old instructions from INSTALL document. Closes ticket 26588.
+    - Warn users that they should not include MyFamily line(s) in their
+      torrc when running Tor bridge. Closes ticket 26908.
+
+  o Removed features:
+    - Tor no longer supports building with the dmalloc library. For
+      debugging memory issues, we suggest using gperftools or msan
+      instead. Closes ticket 26426.
+    - Tor no longer attempts to run on Windows environments without the
+      GetAdaptersAddresses() function. This function has existed since
+      Windows XP, which is itself already older than we support.
+
+  o Testing:
+    - Fix forking tests on Windows when there is a space somewhere in
+      the path. Fixes bug 26437; bugfix on 0.2.2.4-alpha.
+
+  o Removed features (hidden service, tor2web):
+    - Remove Tor2web functionalities. The Tor2webMode and
+      Tor2webRendezvousPoints options are now obsolete. Note that this
+      feature was never shipped in vanilla Tor and it was only possible
+      to use this feature by building the support at compile time.
+      Closes ticket 26367.
+
+
 Changes in version 0.2.9.17 - 2018-09-10
   Tor 0.2.9.17 backports numerous bugfixes from later versions of Tor.
 
@@ -16679,7 +17118,7 @@ Changes in version 0.2.2.36 - 2012-05-24
       issue 4788.
     - Update to the May 1 2012 Maxmind GeoLite Country database.
 
-  - Feature removal:
+  o Feature removal:
     - When sending or relaying a RELAY_EARLY cell, we used to convert
       it to a RELAY cell if the connection was using the v1 link
       protocol. This was a workaround for older versions of Tor, which
diff --git a/changes/27186 b/changes/27186
deleted file mode 100644
index 522580e91..000000000
--- a/changes/27186
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (UI):
-    - Log each included configuration file or directory as we read it, to
-      provide more visibility about where Tor is reading from.
-      Patch from Unto Sten; closes ticket 27186.
diff --git a/changes/NSS b/changes/NSS
deleted file mode 100644
index fc13867b4..000000000
--- a/changes/NSS
+++ /dev/null
@@ -1,7 +0,0 @@
-  o Major features (portability, cryptography, experimental, TLS):
-    - Tor now has the option to compile with the NSS library instead of
-      OpenSSL. This feature is experimental, and we expect that bugs may
-      remain. It is mainly intended for environments where Tor's performance
-      is not CPU-bound, and where NSS is already known to be installed.
-      To try it out, configure Tor with the --enable-nss flag.
-      Closes ticket 26631.
diff --git a/changes/bug15518 b/changes/bug15518
deleted file mode 100644
index 13ed4f527..000000000
--- a/changes/bug15518
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor bugfixes (ipv6):
-    - In addrs_in_same_network_family(), we choose the subnet size based
-      on the IP version (IPv4 or IPv6). Previously, we chose a fixed subnet
-      size of /16 for both IPv4 and IPv6 addresses. Fixes bug 15518; bugfix
-      on 0.3.5.1-alpha. Patch by Neel Chauhan.
-
diff --git a/changes/bug17873 b/changes/bug17873
deleted file mode 100644
index 4922fedaf..000000000
--- a/changes/bug17873
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor bugfixes (OS compatibility):
-    - On Linux and Windows properly handle configuration change that
-      moves a listener to/from wildcard IP address. In case first
-      attempt to bind a socket fails, close the old listener and
-      try binding a socket again. Fixes bug 17873; bugfix on
-      0.0.8pre-1.
diff --git a/changes/bug18642 b/changes/bug18642
deleted file mode 100644
index 6b71f3c6d..000000000
--- a/changes/bug18642
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (denial-of-service avoidance):
-    - Make our OOM handler aware of the DNS cache so that it doesn't fill up
-      the memory. This check is important for our DoS mitigation subsystem.
-      Closes ticket 18642. Patch by Neel Chauhan
-
diff --git a/changes/bug20874 b/changes/bug20874
deleted file mode 100644
index ebec99922..000000000
--- a/changes/bug20874
+++ /dev/null
@@ -1,7 +0,0 @@
-  o Minor bugfixes (client, reachableaddresses):
-    - Instead of adding an "reject *:*" line to ReachableAddresses when
-      loading the configuration, add one to the policy after parsing it
-      in parse_reachable_addresses(). This prevents extra "reject *.*"
-      lines from accumulating on reloads. Fixes bug 20874; bugfix on
-      0.3.5.1-alpha. Patch by Neel Chauhan.
-
diff --git a/changes/bug21530 b/changes/bug21530
deleted file mode 100644
index 24d981d82..000000000
--- a/changes/bug21530
+++ /dev/null
@@ -1,7 +0,0 @@
-  o Major features (relay):
-    - Relays no longer run as exits by default. If the "ExitRelay" option is
-      auto (or unset), and no exit policy is specified with ExitPolicy or
-      ReducedExitPolicy, we now treat ExitRelay as 0. Previously in this
-      case, we allowed exit
-      traffic and logged a warning message. Closes ticket
-      21530. Patch by Neel Chauhan.
diff --git a/changes/bug22156 b/changes/bug22156
deleted file mode 100644
index 685f2a551..000000000
--- a/changes/bug22156
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (development):
-    - Tor's makefile now supports running the "clippy" Rust style tool
-      on our Rust code. Closes ticket 22156.
diff --git a/changes/bug24104 b/changes/bug24104
deleted file mode 100644
index ca2a3537f..000000000
--- a/changes/bug24104
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfix (relay statistics):
-    - Update relay descriptor on bandwidth changes only when the uptime is
-      smaller than 24h in order to reduce the efficiency of guard discovery
-      attacks. Fixes bug 24104; bugfix on 0.1.1.6-alpha.
diff --git a/changes/bug24312 b/changes/bug24312
deleted file mode 100644
index f049c0e7e..000000000
--- a/changes/bug24312
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (relays):
-    - Since 0.3.3.5-rc, authorities require DirCache (V2Dir) for the Guard
-      flag. Update the message logged on relays when DirCache is disabled.
-      Fixes bug 24312; bugfix on 0.3.3.5-rc.
diff --git a/changes/bug25477 b/changes/bug25477
deleted file mode 100644
index 0eac06137..000000000
--- a/changes/bug25477
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (logging):
-    - Refrain from mentioning bug 21018, as it is already fixed.
-      Fixes bug 25477; bugfix on 0.2.9.8.
diff --git a/changes/bug25505 b/changes/bug25505
deleted file mode 100644
index 101c7d524..000000000
--- a/changes/bug25505
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (netflow padding):
-    - Ensure circuitmux queues are empty before scheduling or sending padding.
-      Fixes bug 25505; bugfix on 0.3.1.1-alpha.
diff --git a/changes/bug25552 b/changes/bug25552
deleted file mode 100644
index 8d0488a46..000000000
--- a/changes/bug25552
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Major feature (onion services):
-    - Improve revision counter generation in next-gen onion services. Onion
-      services can now scale by hosting multiple instances on different hosts
-      without synchronization between them, which was previously impossible
-      because descriptors would get rejected by HSDirs. Addresses ticket 25552.
diff --git a/changes/bug25886 b/changes/bug25886
deleted file mode 100644
index 45f9a5406..000000000
--- a/changes/bug25886
+++ /dev/null
@@ -1,7 +0,0 @@
-  o Minor bugfixes (relay):
-    - In frac_nodes_with_descriptors(), add for_direct_connect, and replace
-      node_has_any_descriptor() with node_has_preferred_descriptor(). Also,
-      if we are using bridges and there is at least one bridge with a full
-      descriptor, set f_guard in compute_frac_paths_available() to 1.0.
-      Fixes bug 25886; bugfix on 0.3.5.1-alpha. Patch by Neel Chauhan.
-
diff --git a/changes/bug26152 b/changes/bug26152
deleted file mode 100644
index 34fda09b2..000000000
--- a/changes/bug26152
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (testing):
-    - When logging a version mismatch in our openssl_version tests,
-      report the actual offending version strings. Fixes bug 26152; bugfix on
-      0.2.9.1-alpha.
diff --git a/changes/bug26223 b/changes/bug26223
deleted file mode 100644
index e17b0529e..000000000
--- a/changes/bug26223
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (directory authority):
-    - There is no longer an artificial upper limit on the length of bandwidth
-      lines. Closes ticket 26223.
diff --git a/changes/bug26282 b/changes/bug26282
deleted file mode 100644
index c278f0b60..000000000
--- a/changes/bug26282
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (C correctness):
-    - Avoid casting smartlist index to int implicitly, as it may trigger
-      a warning (-Wshorten-64-to-32). Fixes bug 26282; bugfix on
-      0.2.3.13-alpha, 0.2.7.1-alpha and 0.2.1.1-alpha.
diff --git a/changes/bug26367 b/changes/bug26367
deleted file mode 100644
index af098df9c..000000000
--- a/changes/bug26367
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Removed features (hidden service, tor2web):
-    - Remove Tor2web functionalities. The Tor2webMode and
-      Tor2webRendezvousPoints options are now obsolete. Note that this feature
-      was never shipped in vanilla Tor and it was only possible to use this
-      feature by building the support at compile time. Closes ticket 26367.
diff --git a/changes/bug26437 b/changes/bug26437
deleted file mode 100644
index da4879b6d..000000000
--- a/changes/bug26437
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Testing:
-    - Fix forking tests on Windows when there is a space somewhere in the path.
-      Fixes bug 26437; bugfix on 0.2.2.4-alpha.
diff --git a/changes/bug26470 b/changes/bug26470
deleted file mode 100644
index 854ec7ea7..000000000
--- a/changes/bug26470
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (HTTP tunnel):
-    - Fix a bug warning when closing an HTTP tunnel connection due to
-      an HTTP request we couldn't handle. Fixes bug 26470; bugfix on
-      0.3.2.1-alpha.
diff --git a/changes/bug26488 b/changes/bug26488
deleted file mode 100644
index f93d4c6f0..000000000
--- a/changes/bug26488
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Major bugfixes (directory authority):
-    - Actually check that address we get from DirAuthority configuration
-      line is valid IPv4. Explicitly disallow DirAuthority adress to be
-      DNS hostname. Fixes bug 26488; bugfix on 0.1.2.10-rc.
diff --git a/changes/bug26502 b/changes/bug26502
deleted file mode 100644
index 16d19095d..000000000
--- a/changes/bug26502
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - 'updateFallbackDirs.py' now ignores the blacklist file as it's not longer needed
-      Closes ticket 26502.
diff --git a/changes/bug26522 b/changes/bug26522
deleted file mode 100644
index c6b30eed7..000000000
--- a/changes/bug26522
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor bugfixes (security):
-    - Refrain from potentially insecure usage of strncat() in
-      configure_backtrace_handler(). Use snprintf() instead.
-      Fixes bug 26522; bugfix on
-      a969ce464dc23db39725a891d60537f3d3e51b50 (not in any tor
-      release).
diff --git a/changes/bug26525 b/changes/bug26525
deleted file mode 100644
index 27862eee9..000000000
--- a/changes/bug26525
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (code quality):
-     - Rename sandbox_getaddrinfo() and other functions to no longer
-       misleadingly suggest that they are sandbox-only. Fixes bug
-       26525; bugfix on 0.2.7.1-alpha.
diff --git a/changes/bug26882 b/changes/bug26882
deleted file mode 100644
index adfe0e2f3..000000000
--- a/changes/bug26882
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (logging, documentation):
-    - When SafeLogging is enabled, scrub IP address in
-      channel_tls_process_netinfo_cell(). Also, add a note
-      to manpage that scrubbing is not guaranteed on loglevels
-      below Notice. Fixes bug 26882; bugfix on 0.2.4.10-alpha.
diff --git a/changes/bug26892 b/changes/bug26892
deleted file mode 100644
index 6fc8a0320..000000000
--- a/changes/bug26892
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor bugfixes (logging):
-    - As a precaution, do an early return from
-      log_addr_has_changed() if Tor is running as client. Also,
-      log a stack trace for debugging as this function should only
-      be called when Tor runs as server. Fixes bug 26892;
-      bugfix on 0.1.1.9-alpha.
diff --git a/changes/bug26896 b/changes/bug26896
deleted file mode 100644
index 9762dc7fa..000000000
--- a/changes/bug26896
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (directory connection shutdown):
-    - Avoid a double-close when shutting down a stalled directory connection.
-      Fixes bug 26896; bugfix on 0.3.4.1-alpha.
diff --git a/changes/bug26979 b/changes/bug26979
deleted file mode 100644
index e615207b7..000000000
--- a/changes/bug26979
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (appveyor ci):
-    - Improve Appveyor CI IRC logging. Generate correct branches and URLs for
-      pull requests and tags. Use unambiguous short commits.
-      Fixes bug 26979; bugfix on master.
diff --git a/changes/bug26986 b/changes/bug26986
deleted file mode 100644
index a3ab9ff25..000000000
--- a/changes/bug26986
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (compilation):
-    - Use Windows-compatible format strings in tor-print-ed-signing-cert.c.
-      Fixes bug 26986; bugfix on master.
diff --git a/changes/bug27034 b/changes/bug27034
deleted file mode 100644
index bdb7d29c1..000000000
--- a/changes/bug27034
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor bugfixes (controller):
-    - Consider all routerinfo errors other than "not a server"
-      to be transient for the purpose of "GETINFO exit-policy/*"
-      controller request. Print stacktrace in the unlikely case
-      of failing to recompute routerinfo digest. Fixes bug 27034;
-      bugfix on 0.3.4.1-alpha.
diff --git a/changes/bug27044 b/changes/bug27044
deleted file mode 100644
index 0ce9c48b8..000000000
--- a/changes/bug27044
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (configuration, Onion Services):
-    - In rend_service_parse_port_config(), disallow any input to
-      remain after address-port pair was parsed. This will catch
-      address and port being whitespace-separated by mistake of
-      the user. Fixes bug 27044; bugfix on 0.2.9.10.
diff --git a/changes/bug27096 b/changes/bug27096
deleted file mode 100644
index d1c139549..000000000
--- a/changes/bug27096
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (testing):
-    - Fix two unit tests to work when HOME environment variable is not
-      set. Fixes bug 27096; bugfix on 0.2.8.1-alpha.
diff --git a/changes/bug27165 b/changes/bug27165
deleted file mode 100644
index 9e78d17e9..000000000
--- a/changes/bug27165
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (C correctness):
-    - Use time_t for all values in predicted_ports_prediction_time_remaining().
-      Rework the code that computes difference between durations/timestamps.
-      Fixes bug 27165; bugfix on 0.3.1.1-alpha.
diff --git a/changes/bug27224 b/changes/bug27224
deleted file mode 100644
index d43890b81..000000000
--- a/changes/bug27224
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (performance)::
-    - Rework node_is_a_configured_bridge() to no longer
-      call node_get_all_orports(), which was performing too
-      many memory allocations. Fixes bug 27224; bugfix on
-      0.2.3.9.
diff --git a/changes/bug27237 b/changes/bug27237
deleted file mode 100644
index 6fa70d785..000000000
--- a/changes/bug27237
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (bootstrap):
-    - Try harder to get descriptors in non-exit test networks, by
-      using the mid weight for the third hop when there are no exits.
-      Fixes bug 27237; bugfix on 0.2.6.2-alpha.
diff --git a/changes/bug27335 b/changes/bug27335
deleted file mode 100644
index dcc55a945..000000000
--- a/changes/bug27335
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (hidden service v3):
-    - In case the hidden service directory can't be created or has wrong
-      permissions, do not BUG() on it which lead to a non fatal stacktrace.
-      Fixes bug 27335; bugfix on 0.3.2.1.
diff --git a/changes/bug27428 b/changes/bug27428
deleted file mode 100644
index 86e00c7db..000000000
--- a/changes/bug27428
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (torrc):
-    - Tor now validates that the ContactInfo config option is valid UTF-8
-      when parsing torrc. Fixes bug 27428; bugfix on 0.0.8pre1.
diff --git a/changes/bug27464 b/changes/bug27464
deleted file mode 100644
index 9dedd06f4..000000000
--- a/changes/bug27464
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor bugfixes (continuous integration):
-    - Stop reinstalling identical packages in our Windows CI.
-      Fixes bug 27464; bugfix on 0.3.4.1-alpha.
diff --git a/changes/bug27649 b/changes/bug27649
deleted file mode 100644
index 55bfc3a84..000000000
--- a/changes/bug27649
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (rust):
-    - The protover rewrite in 24031 allowed repeated votes from the same
-      voter for the same protocol version to be counted multiple times in
-      protover_compute_vote(). Fixes bug 27649; bugfix on 0.3.3.5-rc.
diff --git a/changes/bug27658 b/changes/bug27658
deleted file mode 100644
index 8cc0aa471..000000000
--- a/changes/bug27658
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor bugfixes (testing):
-    - If a unit test running in a subprocess exits abnormally or with a
-      nonzero status code, treat the test as having failed, even if
-      the test reported success. Without this fix, memory leaks don't cause
-      cause the tests to fail, even with LeakSanitizer. Fixes bug 27658;
-      bugfix on 0.2.2.4-alpha.
diff --git a/changes/bug27687 b/changes/bug27687
deleted file mode 100644
index 8b7903b63..000000000
--- a/changes/bug27687
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (rust):
-    - protover parsed and accepted unknown protocol names containing invalid
-      characters outside the range [A-Za-z0-9-]. Fixes bug 27687; bugfix on
-      0.3.3.1-alpha.
diff --git a/changes/bug27708 b/changes/bug27708
deleted file mode 100644
index d283b1951..000000000
--- a/changes/bug27708
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Major bugfixes (restart-in-process):
-    - Fix a use-after-free error that could be caused by passing Tor an
-      impossible set of options that would fail during options_act().
-      Fixes bug 27708; bugfix on 0.3.3.1-alpha.
diff --git a/changes/doc26588 b/changes/doc26588
deleted file mode 100644
index 4b67bdb03..000000000
--- a/changes/doc26588
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Documentation:
-    - Remove old instructions from INSTALL document. Closes
-      ticket 26588.
diff --git a/changes/doc26638 b/changes/doc26638
deleted file mode 100644
index d6f9b1de7..000000000
--- a/changes/doc26638
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (development):
-    - Copy paragraph and URL to Tor's code of conduct document
-      from CONTRIBUTING to new CODE_OF_CONDUCT file. Resolves
-      ticket 26638.
diff --git a/changes/doc26908 b/changes/doc26908
deleted file mode 100644
index 888da8be5..000000000
--- a/changes/doc26908
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Documentation:
-    - Warn users that they should not include MyFamily
-      line(s) in their torrc when running Tor bridge.
-      Closes ticket 26908.
diff --git a/changes/feature19506 b/changes/feature19506
deleted file mode 100644
index 83ba9e245..000000000
--- a/changes/feature19506
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (admin tools):
-    - Add new tool that prints expiration date of signing cert
-      in ed25519_signing_cert. Resolves issue 19506.
diff --git a/changes/feature25132 b/changes/feature25132
deleted file mode 100644
index 138cba9e9..000000000
--- a/changes/feature25132
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (controller):
-    - The GETINFO command now support an "uptime" argument, to return
-      Tor's uptime in seconds. Closes ticket 25132.
diff --git a/changes/feature26815 b/changes/feature26815
deleted file mode 100644
index 10e7e478f..000000000
--- a/changes/feature26815
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Major features (experimental, library support):
-    - When built with --enable-nss, Tor now uses the NSS library for digests,
-      AES, and pseudorandom numbers. Closes ticket 26815.
diff --git a/changes/feature26816 b/changes/feature26816
deleted file mode 100644
index 3c25597d8..000000000
--- a/changes/feature26816
+++ /dev/null
@@ -1,11 +0,0 @@
-  o Major features (experimental, library support):
-    - Tor now has _partial_ support for using the NSS cryptography library in
-      place of OpenSSL.  When Tor is configured with --enable-nss, it will
-      use NSS for several (but not yet all) of its cryptography.  (It still
-      relies on OpenSSL for the rest.)  Eventually, if all goes as planned,
-      "--enable-nss" will produce a version of Tor that does not depend on
-      OpenSSL.  Implements ticket 26816.
-
-      WARNING: This feature is experimental.  Don't use it for real security
-      yet, until the code has had much more review, and more bugs have been
-      shaken out.
diff --git a/changes/feature8323 b/changes/feature8323
deleted file mode 100644
index 6fbc972d2..000000000
--- a/changes/feature8323
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (controller):
-    - Implement 'GETINFO md/all' controller command to enable
-      getting all known microdesriptors. Closes ticket 8323.
diff --git a/changes/full_include_paths b/changes/full_include_paths
deleted file mode 100644
index c0ac0a05d..000000000
--- a/changes/full_include_paths
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - Include paths to header files within Tor are now qualified by directory
-      within the top-level src directory.
diff --git a/changes/geoip-2018-09-06 b/changes/geoip-2018-09-06
deleted file mode 100644
index 851ec46e2..000000000
--- a/changes/geoip-2018-09-06
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (geoip):
-    - Update geoip and geoip6 to the September 6 2018 Maxmind GeoLite2
-      Country database. Closes ticket 27631.
-
diff --git a/changes/iphplapi b/changes/iphplapi
deleted file mode 100644
index 806f71c3f..000000000
--- a/changes/iphplapi
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Removed features:
-   - Tor no longer attempts to run on Windows environments without the
-     GetAdaptersAddresses() function. This function has existed since
-     Windows XP, which is itself already older than we support.
diff --git a/changes/split_or_h b/changes/split_or_h
deleted file mode 100644
index 53d54ca6d..000000000
--- a/changes/split_or_h
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Code simplification and refactoring:
-    - Many structures have been removed from the centralized "or.h" header,
-      and moved into their own headers.  This will allow us to reduce
-      the number of places in the code that rely on each structure's
-      contents and layout. Closes ticket 26383.
diff --git a/changes/ticket19979 b/changes/ticket19979
deleted file mode 100644
index a6bf93f1a..000000000
--- a/changes/ticket19979
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (openssl):
-    - When possible, use RFC5869 HKDF implementation from OpenSSL.
-      Resolves ticket 19979.
diff --git a/changes/ticket20424 b/changes/ticket20424
deleted file mode 100644
index b3b6f1afa..000000000
--- a/changes/ticket20424
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (compilation):
-    - Tor's configure script now supports a --with-malloc= option to select
-      your malloc implementation. Supported options are "tcmalloc",
-      "jemalloc", "openbsd" (deprecated), and "system" (the default).
-      Addresses part of ticket 20424. Based on a patch from Alex Xu.
diff --git a/changes/ticket21349 b/changes/ticket21349
deleted file mode 100644
index c07288406..000000000
--- a/changes/ticket21349
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Code simplification and refactoring:
-    - Split sampled_guards_update_from_consensus() and
-      select_entry_guard_for_circuit() into subfunctions.
-      In entry_guards_update_primary() unite
-      three smartlist enumerations into one and move smartlist
-      comparison code out of the function. Closes ticket 21349.
diff --git a/changes/ticket23846 b/changes/ticket23846
deleted file mode 100644
index 73850482b..000000000
--- a/changes/ticket23846
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (build):
-    - If you pass the "--enable-pic" option to configure, Tor will try to
-      tell the compiler to build position-independent code suitable to
-      link into a library. (The default remains -fPIE, for code suitable for a
-      relocatable executable.) Closes ticket 23846.
diff --git a/changes/ticket24204 b/changes/ticket24204
deleted file mode 100644
index 835952045..000000000
--- a/changes/ticket24204
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (embedding API):
-    - The Tor controller API now supports a function to launch Tor with a
-      preconstructed owning controller FD, so that embedding applications
-      don't need to manage controller ports and authentication.  Closes
-      ticket 24204.
diff --git a/changes/ticket25573 b/changes/ticket25573
deleted file mode 100644
index 9939601b5..000000000
--- a/changes/ticket25573
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (controller):
-    - For purposes of CIRC_BW-based dropped cell detection, track half-closed
-      stream ids, and allow their ENDs, SENDMEs, DATA and path bias check
-      cells to arrive without counting it as dropped until either the END arrvies,
-      or the windows are empty. Closes ticket 25573.
diff --git a/changes/ticket25928 b/changes/ticket25928
deleted file mode 100644
index 30759fcb6..000000000
--- a/changes/ticket25928
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (directory):
-    - Improved support for networks with only a single authority or a
-      single fallback directory. Patch from Gabriel Somlo. Closes
-      ticket 25928.
diff --git a/changes/ticket26426 b/changes/ticket26426
deleted file mode 100644
index 05fa97494..000000000
--- a/changes/ticket26426
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Removed features:
-    - Tor no longer supports building with the dmalloc library. For debugging
-      memory issues, we suggest using gperftools or msan instead.
-      Closes ticket 26426.
diff --git a/changes/ticket26427 b/changes/ticket26427
deleted file mode 100644
index ff33f7bd4..000000000
--- a/changes/ticket26427
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor features (code layout):
-    - Make a new lowest-level error-handling API for use by code invoked
-      from within the logging module.  This interface it makes it so
-      the logging code is no longer at risk of calling into itself if
-      a failure occurs while trying to log something.
-      Closes ticket 26427.
diff --git a/changes/ticket26447 b/changes/ticket26447
deleted file mode 100644
index 757a4022f..000000000
--- a/changes/ticket26447
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (code correctness, testing):
-    - Tor's build process now includes a "check-includes" make target
-      to verify that no module of Tor relies on any headers from a
-      higher-level module. We hope to use this feature over time to
-      help refactor our codebase.  Closes ticket 26447.
diff --git a/changes/ticket26481 b/changes/ticket26481
deleted file mode 100644
index 84d219ed8..000000000
--- a/changes/ticket26481
+++ /dev/null
@@ -1,12 +0,0 @@
-  o Major features (new code layout):
-   - Nearly all of Tor's source code has been moved around into more logical
-     places.  The "common" directory is now divided into a set of libraries
-     in "lib", and files in the "or" directory have been split into "core"
-     (logic absolutely needed for onion routing), "feature" (independent
-     modules in Tor), and "app" (to configure and invoke the rest of Tor).
-     See doc/HACKING/CodeStructure.md for more information. Closes ticket
-     26481.
-
-     This refactoring is not complete: although the libraries have been
-     refactored to be acyclic, the main body of Tor is still too
-     interconnected.  We will attempt to improve this in the future.
diff --git a/changes/ticket26492 b/changes/ticket26492
deleted file mode 100644
index c6ab292d1..000000000
--- a/changes/ticket26492
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (rust, code quality):
-    - Improve rust code quality in the Rust protover implementation by
-      making it more idiomatic.  Includes changing an internal API to
-      take &str instead of &String.  Closes ticket 26492.
diff --git a/changes/ticket26510 b/changes/ticket26510
deleted file mode 100644
index f00457964..000000000
--- a/changes/ticket26510
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Code simplification and refactoring:
-    - Unify our bloom filter logic. Previously we had two copies of this
-      code: one for routerlist filtering, and one for address set
-      calculations. Closes ticket 26510.
diff --git a/changes/ticket26526 b/changes/ticket26526
deleted file mode 100644
index 447b581df..000000000
--- a/changes/ticket26526
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Code simplification and refactoring:
-    - Utility functions that can perform a DNS lookup are now wholly
-      separated from those that can't, in separate headers and C
-      modules. Closes ticket 26526.
diff --git a/changes/ticket26526_extra b/changes/ticket26526_extra
deleted file mode 100644
index 5495962ff..000000000
--- a/changes/ticket26526_extra
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (tor-resolve):
-    - The tor-resolve utility can now be used with IPv6 SOCKS proxies.
-      Side-effect of the refactoring for ticket 26526.
diff --git a/changes/ticket26527 b/changes/ticket26527
deleted file mode 100644
index ea1d650fe..000000000
--- a/changes/ticket26527
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - Remove ATTR_NONNULL macro from codebase. Resolves
-      ticket 26527.
diff --git a/changes/ticket26560 b/changes/ticket26560
deleted file mode 100644
index 5b4fb1bfe..000000000
--- a/changes/ticket26560
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (continuous integration):
-    - Install libcap-dev and libseccomp2-dev so these optional
-      dependencies get tested on Travis CI.  Closes ticket 26560.
diff --git a/changes/ticket26626 b/changes/ticket26626
deleted file mode 100644
index 84591342d..000000000
--- a/changes/ticket26626
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - Tor now assumes that you have standards-conformant stdint.h and
-      inttypes.h headers when compiling.  Closes ticket 26626.
diff --git a/changes/ticket26663 b/changes/ticket26663
deleted file mode 100644
index 2e1b8db1f..000000000
--- a/changes/ticket26663
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features(config):
-    - The "auto" keyword in torrc is now case insensitive.
-      Closes ticket 26663.
diff --git a/changes/ticket26703 b/changes/ticket26703
deleted file mode 100644
index 764b98b82..000000000
--- a/changes/ticket26703
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - Low log level of "Scheduler type KIST has been enabled" to INFO.
-      Ticket 26703
diff --git a/changes/ticket26947 b/changes/ticket26947
deleted file mode 100644
index 620a3a559..000000000
--- a/changes/ticket26947
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (in-process API):
-    - The tor_api now has a function that returns the name and version
-      of the backend implementing the API. Closes ticket 26947.
diff --git a/changes/ticket27040 b/changes/ticket27040
deleted file mode 100644
index 160556a76..000000000
--- a/changes/ticket27040
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (hidden service v2):
-    - Demote a log warning to info in case we do not have a consensus when a
-      .onion request comes in. This can happen while bootstrapping for
-      instance. The request will follow through after so we really don't need
-      to warn the user loudly. Fixes bug 27040; bugfix on 0.2.8.2-alpha.
diff --git a/changes/ticket27169 b/changes/ticket27169
deleted file mode 100644
index 7854532a6..000000000
--- a/changes/ticket27169
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor features (bootstrap):
-    - Improve user experience by deferring directory progress
-      reporting until after a connection to a relay or bridge has
-      succeeded.  This avoids reporting 80% progress based on cached
-      directory information when we can't even connect to a bridge or
-      relay.  Closes ticket 27169.
diff --git a/changes/ticket27211 b/changes/ticket27211
deleted file mode 100644
index c3d661a01..000000000
--- a/changes/ticket27211
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (testing):
-    - Add scripts/test/chutney-git-bisect.sh, for bisecting using chutney.
-      Implements ticket 27211.
diff --git a/changes/ticket27215 b/changes/ticket27215
deleted file mode 100644
index dcb67900e..000000000
--- a/changes/ticket27215
+++ /dev/null
@@ -1,9 +0,0 @@
-  o Major feature (hidden service):
-    - For a newly created hidden service, the default version is now 3. Tor
-      still supports version 2 service but the operator now needs to
-      specifically set "HiddenServiceVersion 2" in order to create a new
-      service.
-
-      For existing services, tor now learns the version by reading the key
-      file so the HiddenServiceVersion is not mandatory in that case. Closes
-      ticket 27215.
diff --git a/changes/ticket27246 b/changes/ticket27246
deleted file mode 100644
index c0d665d4c..000000000
--- a/changes/ticket27246
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (memory usage):
-    - When not using them, store legacy TAP public onion keys in
-      DER-encoded format, rather than as expanded public keys. This should
-      save several megabytes on typical clients. Closes ticket 27246.
diff --git a/changes/ticket27247 b/changes/ticket27247
deleted file mode 100644
index e980913d3..000000000
--- a/changes/ticket27247
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (client, memory usage):
-    - When not running as a directory cache, there is no need to store the
-      text of the current consensus networkstatus in RAM.  Previously,
-      however, clients would store this anyway, at a cost of over 5 MB.
-      Now, they do not. Fixes bug 27247; bugfix on 0.3.0.1-alpha.
diff --git a/changes/ticket27252 b/changes/ticket27252
deleted file mode 100644
index 410ddef8c..000000000
--- a/changes/ticket27252
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Minor features (continuous integration):
-    - Skip gcc on OSX in Travis CI, it's rarely used.
-      Skip a duplicate hardening-off build in Travis on Tor 0.2.9.
-      Skip gcc on Linux with default settings, because all the non-default
-      builds use gcc on Linux.
-      Implements ticket 27252.
diff --git a/changes/ticket27252-032 b/changes/ticket27252-032
deleted file mode 100644
index 4752aedcf..000000000
--- a/changes/ticket27252-032
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (continuous integration):
-    - Only run one online rust build in Travis, to reduce network errors.
-      Skip offline rust builds on Travis for Linux gcc, because they're
-      redundant.
-      Implements ticket 27252.
diff --git a/changes/ticket27252-034 b/changes/ticket27252-034
deleted file mode 100644
index 620ad83ef..000000000
--- a/changes/ticket27252-034
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (continuous integration):
-    - Don't do a distcheck with --disable-module-dirauth in Travis.
-      Implements ticket 27252.
diff --git a/changes/ticket27467 b/changes/ticket27467
deleted file mode 100644
index 6f0df024c..000000000
--- a/changes/ticket27467
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - Remove GetAdaptersAddresses_fn_t. The code that used it was removed
-      as part of the 26481 refactor. Closes ticket 27467.
diff --git a/changes/ticket27547 b/changes/ticket27547
deleted file mode 100644
index f60d4a482..000000000
--- a/changes/ticket27547
+++ /dev/null
@@ -1,7 +0,0 @@
-  o Major feature (hidden service v3):
-    - Implement client authorization at the descriptor level. A new torrc
-      option was added to control this client side: ClientOnionAuthDir <path>.
-      On the service side, if the "authorized_clients/" directory exists in
-      the onion service directory path, client configuration are read from the
-      files within. See the manpage for more details. Closes ticket 27547.
-      Patch done by Suphanat Chunhapanya (haxxpop).
diff --git a/changes/ticket27630 b/changes/ticket27630
deleted file mode 100644
index 8a5f5d6b5..000000000
--- a/changes/ticket27630
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Code simplification and refactoring:
-    - Use the simpler strcmpstart() helper in rend_parse_v2_service_descriptor
-      instead of strncmp(). Closes ticket 27630.
diff --git a/changes/ticket27678 b/changes/ticket27678
deleted file mode 100644
index daeb262e1..000000000
--- a/changes/ticket27678
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (controller):
-    - Emit CIRC_BW events as soon as we detect that we processed an invalid
-      or otherwise dropped cell on a circuit. This allows vanguards and
-      other controllers to react more quickly to dropped cells. Closes
-      ticket 27678.
diff --git a/changes/ticket3569_part1 b/changes/ticket3569_part1
deleted file mode 100644
index 4032aff4d..000000000
--- a/changes/ticket3569_part1
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Code simplification and refactoring:
-    - Rework Tor SOCKS server code to use Trunnel and benefit from
-      autogenerated functions for parsing and generating SOCKS wire
-      format. New implementation is cleaner, more maintainable and
-      should be less prone to heartbleed-style vulnerabilities.
-      Implements a significant fraction of ticket 3569.
diff --git a/changes/ticket3723 b/changes/ticket3723
deleted file mode 100644
index 3deefe27b..000000000
--- a/changes/ticket3723
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (directory authority):
-    - When a bandwidth file is used to obtain the bandwidth measurements,
-      include this bandwidth file headers in the votes. Closes ticket 3723.
diff --git a/changes/ticket8415 b/changes/ticket8415
deleted file mode 100644
index 992e8e1a1..000000000
--- a/changes/ticket8415
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (memory management):
-    - Get libevent code to use the same memory allocator that
-      Tor code is using by calling event_set_mem_functions()
-      during initialization. Resolves ticket 8415.

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