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[tor-commits] [tor/master] Run format_changelog



commit 4c165aca04f7dce3721ac02732f1d161a86575c6
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Fri Oct 30 10:59:14 2020 -0400

    Run format_changelog
---
 ChangeLog | 544 +++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 272 insertions(+), 272 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b75aeb299b..9d268948c6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,168 +1,161 @@
 Changes in version 0.4.5.1-alpha - 2020-10-30
-  Tor 0.4.5.1-alpha is the first alpha release in the 0.4.5.x series.
-  It improves support for IPv6, address discovery and self-testing, code
+  Tor 0.4.5.1-alpha is the first alpha release in the 0.4.5.x series. It
+  improves support for IPv6, address discovery and self-testing, code
   metrics and tracing.
 
   Here are the changes since 0.4.4.5.
 
-  o Major features (IPv6, relay):
-    - The torrc option Address now supports IPv6. By doing so, we've also
-      unified the interface to find our address to support IPv4, IPv6 and
-      hostname. Closes ticket 33233.
-
-  o Major features (relay, IPv6):
-    - Relays now automatically bind on IPv6 for their ORPort unless specified
-      otherwise with the IPv4Only flag. Closes ticket 33246.
-
-  o Major features (tracing):
-    - Add a tracing library with USDT and LTTng-UST support. Few tracepoints
-      were added in the circuit subsystem. More will come incrementally. This
-      feature is compiled out by default. It needs to be enabled at configure
-      time. See documentation in doc/HACKING/Tracing.md. Closes ticket 32910.
+  - The "optimistic data" feature is now always on; there is no longer
+  an option to disable it from the torrc file or from the consensus
+  directory. Closes part of 40139. - The "usecreatefast" network
+  parameter is now removed; there is no longer an option for authorities
+  to turn it off. Closes part of 40139.
 
   o Major features (IPv6, relay):
-    - Launch IPv4 and IPv6 ORPort self-test circuits on relays and bridges.
-      Closes ticket 33222.
+    - The torrc option Address now supports IPv6. By doing so, we've
+      also unified the interface to find our address to support IPv4,
+      IPv6 and hostname. Closes ticket 33233.
+    - Launch IPv4 and IPv6 ORPort self-test circuits on relays and
+      bridges. Closes ticket 33222.
 
   o Major features (metrics):
-    - Introduce a new MetricsPort which exposes, through an HTTP GET /metrics, a
-      series of metrics that tor collects at runtime. At the moment, the only
-      supported output format is Prometheus data model. Closes ticket 40063;
+    - Introduce a new MetricsPort which exposes, through an HTTP GET
+      /metrics, a series of metrics that tor collects at runtime. At the
+      moment, the only supported output format is Prometheus data model.
+      Closes ticket 40063;
 
   o Major features (relay self-testing, IPv6):
-    - Relays now track their IPv6 ORPort separately from the reachability of
-      their IPv4 ORPort.  They will not publish a descriptor unless _both_
-      ports appear to be externally reachable. Closes ticket 34067.
+    - Relays now track their IPv6 ORPort separately from the reachability
+      of their IPv4 ORPort. They will not publish a descriptor unless
+      _both_ ports appear to be externally reachable. Closes
+      ticket 34067.
 
   o Major features (relay, IPv6):
+    - Relays now automatically bind on IPv6 for their ORPort unless
+      specified otherwise with the IPv4Only flag. Closes ticket 33246.
     - When a relay with IPv6 support opens a connection to another
       relay, and the extend cell lists both IPv4 and IPv6 addresses, the
-      first relay now picks randomly which address to use.  Closes
+      first relay now picks randomly which address to use. Closes
       ticket 33220.
 
+  o Major features (tracing):
+    - Add a tracing library with USDT and LTTng-UST support. Few
+      tracepoints were added in the circuit subsystem. More will come
+      incrementally. This feature is compiled out by default. It needs
+      to be enabled at configure time. See documentation in
+      doc/HACKING/Tracing.md. Closes ticket 32910.
+
   o Major bugfix (TLS, buffer):
-    - When attempting to read N bytes on a TLS connection, really try to read
-      those N bytes. Before that, Tor would stop reading after the first TLS
-      record which can be smaller than N bytes even though more data was waiting
-      on the TLS connection socket. The remaining data would have been read at
-      the next mainloop event. Fixes bug 40006; bugfix on 0.1.0.5-rc.
+    - When attempting to read N bytes on a TLS connection, really try to
+      read those N bytes. Before that, Tor would stop reading after the
+      first TLS record which can be smaller than N bytes even though
+      more data was waiting on the TLS connection socket. The remaining
+      data would have been read at the next mainloop event. Fixes bug
+      40006; bugfix on 0.1.0.5-rc.
 
   o Minor features (address discovery):
-    - If no Address statements are found, relays now prioritize guessing their
-      address by looking at the local interface instead of the local hostname.
-      If the interface address can't be found, the local hostname is used.
-      Closes ticket 33238.
-
-  o Minor features (configuration):
-    - Allow the using wildcards (* and ?) with the %include option on
-      configuration files. Closes ticket 25140. Patch by Daniel Pinto.
-    - Allows configuration options EntryNodes, ExcludeNodes,
-      ExcludeExitNodes, ExitNodes, MiddleNodes, HSLayer2Nodes and
-      HSLayer3Nodes to be specified multiple times. Closes ticket
-      28361. Patch by Daniel Pinto.
-
-  o Minor features (control port):
-    - Add a DROPTIMEOUTS control port command to drop circuit build timeout
-      history and reset the timeout. Closes ticket 40002.
-
-  o Minor features (directory authorities):
-    - Create new consensus method that removes the unecessary = padding
-      from ntor-onion-key. Closes ticket 7869. Patch by Daniel Pinto.
-
-  o Minor features (relay):
-    - If a relay is unable to discover its address, attempt to learn it from the
-      NETINFO cell. Closes ticket 40022.
-
-  o Minor features (relay, address discovery):
-    - If Address is not found in torrc, attempt to learn our address with the
-      configured ORPort address if any. Closes ticket 33236.
+    - If no Address statements are found, relays now prioritize guessing
+      their address by looking at the local interface instead of the
+      local hostname. If the interface address can't be found, the local
+      hostname is used. Closes ticket 33238.
 
   o Minor features (admin tools):
     - Add new --format argument to -key-expiration option to allow
-      specifying the time format of expiration date. Adds Unix
-      timestamp format support. Patch by Daniel Pinto. Closes
-      ticket 30045.
+      specifying the time format of expiration date. Adds Unix timestamp
+      format support. Patch by Daniel Pinto. Closes ticket 30045.
 
   o Minor features (authorities):
     - Authorities now list a different set of protocols as required and
-      recommended.  These lists are chosen so that only truly recommended
-      and/or required protocols are included, and so that clients using 0.2.9
-      or later will continue to work (even though they are not supported),
-      whereas only relays running 0.3.5 or later will meet the requirements.
-      Closes ticket 40162.
+      recommended. These lists are chosen so that only truly recommended
+      and/or required protocols are included, and so that clients using
+      0.2.9 or later will continue to work (even though they are not
+      supported), whereas only relays running 0.3.5 or later will meet
+      the requirements. Closes ticket 40162.
 
   o Minor features (bootstrap reporting):
     - When reporting bootstrapping status on a relay, do not consider
       connections that have never been the target of an origin circuit.
       Previously, all connection failures were treated as potential
-      bootstrapping failures, including those that had been opened because of
-      client requests. Closes ticket 25061.
+      bootstrapping failures, including those that had been opened
+      because of client requests. Closes ticket 25061.
 
   o Minor features (build):
-    - If the configure script has given any warnings, remind the user about
-      them at the end of the script. Related to 40138.
-    - When running the configure script, try to detect version mismatches
-      between the openssl headers and libraries, and suggest that the
-      user should try "--with-openssl-dir". Closes 40138.
+    - If the configure script has given any warnings, remind the user
+      about them at the end of the script. Related to 40138.
+    - When running the configure script, try to detect version
+      mismatches between the openssl headers and libraries, and suggest
+      that the user should try "--with-openssl-dir". Closes 40138.
 
   o Minor features (compilation):
     - When building Tor, first link all object files into a single
       static library. This may help with embedding Tor in other
-      programs.  Note that most Tor functions do not constitute a
-      part of a stable or supported API: Only those functions in
-      tor_api.h should be used if embedding Tor.  Closes ticket
-      40127.
+      programs. Note that most Tor functions do not constitute a part of
+      a stable or supported API: Only those functions in tor_api.h
+      should be used if embedding Tor. Closes ticket 40127.
+
+  o Minor features (configuration):
+    - Allow the using wildcards (* and ?) with the %include option on
+      configuration files. Closes ticket 25140. Patch by Daniel Pinto.
+    - Allows configuration options EntryNodes, ExcludeNodes,
+      ExcludeExitNodes, ExitNodes, MiddleNodes, HSLayer2Nodes and
+      HSLayer3Nodes to be specified multiple times. Closes ticket 28361.
+      Patch by Daniel Pinto.
 
   o Minor features (control port):
+    - Add a DROPTIMEOUTS control port command to drop circuit build
+      timeout history and reset the timeout. Closes ticket 40002.
     - When a stream enters the AP_CONN_STATE_CONTROLLER_WAIT status,
       send a control port event CONTROLLER_WAIT. Closes ticket 32190.
       Patch by Neel Chauhan.
 
   o Minor features (control port, relay):
-    - Introduce "GETINFO address/v4" and "GETINFO address/v6" in the control
-      port to fetch the Tor host's respective IPv4 or IPv6 address. We keep
-      "GETINFO address" for backwords-compatibility which retains the current
-      behavior. Closes ticket 40039. Patch by Neel Chauhan.
+    - Introduce "GETINFO address/v4" and "GETINFO address/v6" in the
+      control port to fetch the Tor host's respective IPv4 or IPv6
+      address. We keep "GETINFO address" for backwords-compatibility
+      which retains the current behavior. Closes ticket 40039. Patch by
+      Neel Chauhan.
 
   o Minor features (control port, rephist):
     - Introduce GETINFO "stats/ntor/{assigned/requested}" and
-      "stats/tap/{assigned/requested}" to get the NTorand TAP
-      circuit onion handshake rephist values respectively.
-      Closes ticket 28279. Patch by Neel Chauhan.
+      "stats/tap/{assigned/requested}" to get the NTorand TAP circuit
+      onion handshake rephist values respectively. Closes ticket 28279.
+      Patch by Neel Chauhan.
 
   o Minor features (controller, IPv6):
-    - Tor relays now try to report to the controller when they are launching
-      an IPv6 self-test. Closes ticket 34068.
+    - Tor relays now try to report to the controller when they are
+      launching an IPv6 self-test. Closes ticket 34068.
 
   o Minor features (directory authorities):
+    - Create new consensus method that removes the unecessary = padding
+      from ntor-onion-key. Closes ticket 7869. Patch by Daniel Pinto.
     - Directory authorities now reject descriptors from relays running
       Tor versions from the 0.4.1 series, but still allow the 0.3.5
       series. Resolves ticket 34357. Patch by Neel Chauhan.
 
   o Minor features (directory authorities, IPv6):
     - Make authorities add their IPv6 ORPort (if any) to the trusted dir
-      servers list. Authorities currently add themselves to the trusted dir
-      servers list, but they only add their IPv4 address and ports to the list.
-      Closes ticket 32822.
+      servers list. Authorities currently add themselves to the trusted
+      dir servers list, but they only add their IPv4 address and ports
+      to the list. Closes ticket 32822.
 
   o Minor features (directory authority):
     - Make it possible to specify multiple ConsensusParams torrc lines.
       Now directory authority operators can for example put the main
-      ConsensusParams config in one torrc file and then add to it from
-      a different torrc file. Closes ticket 40164.
+      ConsensusParams config in one torrc file and then add to it from a
+      different torrc file. Closes ticket 40164.
     - The AssumeReachable option no longer stops directory authorities
       from checking whether other relays are running. A new
-      AuthDirTestReachability option can be used to disable these checks.
-      Closes ticket 34445.
-    - When looking for possible sybil attacks, also consider IPv6 addresses.
-      Two routers are considered to have "the same" address by this metric
-      if they are in the same /64 network. Patch from Maurice Pibouin. Closes
-      ticket 7193.
+      AuthDirTestReachability option can be used to disable these
+      checks. Closes ticket 34445.
+    - When looking for possible sybil attacks, also consider IPv6
+      addresses. Two routers are considered to have "the same" address
+      by this metric if they are in the same /64 network. Patch from
+      Maurice Pibouin. Closes ticket 7193.
 
   o Minor features (ed25519, relay):
     - Save a relay's base64-encoded ed25519 identity key to the data
-      directory in a file named fingerprint-ed25519. Closes ticket 30642.
-      Patch by Neel Chauhan.
+      directory in a file named fingerprint-ed25519. Closes ticket
+      30642. Patch by Neel Chauhan.
 
   o Minor features (heartbeat):
     - Include the total number of inbound and outbound IPv4 and IPv6
@@ -170,30 +163,31 @@ Changes in version 0.4.5.1-alpha - 2020-10-30
 
   o Minor features (IPv6, ExcludeNodes):
     - Make routerset_contains_router() capable of handling IPv6
-      addresses. This makes ExcludeNodes capable of excluding an
-      IPv6 adddress. Previously, ExcludeNodes ignored IPv6
-      addresses. Closes ticket 34065. Patch by Neel Chauhan.
+      addresses. This makes ExcludeNodes capable of excluding an IPv6
+      adddress. Previously, ExcludeNodes ignored IPv6 addresses. Closes
+      ticket 34065. Patch by Neel Chauhan.
 
   o Minor features (IPv6, relay):
     - Allow relays to send IPv6-only extend cells. Closes ticket 33222.
-    - Declare support for the Relay=3 subprotocol version. Closes ticket 33226.
+    - Declare support for the Relay=3 subprotocol version. Closes
+      ticket 33226.
     - When launching IPv6 ORPort self-test circuits, make sure that the
       second-last hop can initiate an IPv6 extend. Closes ticket 33222.
 
   o Minor features (logging):
-    - Adds the running glibc version to the log. Also adds the
-      running and compiled glibc version to the library list
-      returned when using the flag --library-versions. Patch
-      from Daniel Pinto. Closes ticket 40047; bugfix on
-      0.4.5.0-alpha-dev.
-    - Consider 301 as an error like a 404 when processing the response to a
-      request for a group of server descriptors or an extrainfo documents.
-      Closes ticket 40053.
-    - Print directory fetch information a single line. Closes ticket 40159.
+    - Adds the running glibc version to the log. Also adds the running
+      and compiled glibc version to the library list returned when using
+      the flag --library-versions. Patch from Daniel Pinto. Closes
+      ticket 40047; bugfix on 0.4.5.0-alpha-dev.
+    - Consider 301 as an error like a 404 when processing the response
+      to a request for a group of server descriptors or an extrainfo
+      documents. Closes ticket 40053.
+    - Print directory fetch information a single line. Closes
+      ticket 40159.
     - Provide more complete descriptions of our connections when logging
       about them. Closes ticket 40041.
-    - When describing a relay in th elogs, we now include its ed25519 identity.
-      Closes ticket 22668.
+    - When describing a relay in th elogs, we now include its ed25519
+      identity. Closes ticket 22668.
 
   o Minor features (onion services):
     - When writing an onion service hostname file, first read it to make
@@ -203,263 +197,269 @@ Changes in version 0.4.5.1-alpha - 2020-10-30
       Neel Chauhan.
 
   o Minor features (pluggable transports):
-    - Added option OutboundBindAddressPT to torrc. This option allows users to
-      specify which IPv4 and IPv6 address they want pluggable transports to use
-      for outgoing IP packets. Tor does not have a way to enforce that the pluggable
-      transport honors this option so each pluggable transport will have to
-      implement support for this feature. Closes ticket 5304.
+    - Added option OutboundBindAddressPT to torrc. This option allows
+      users to specify which IPv4 and IPv6 address they want pluggable
+      transports to use for outgoing IP packets. Tor does not have a way
+      to enforce that the pluggable transport honors this option so each
+      pluggable transport will have to implement support for this
+      feature. Closes ticket 5304.
 
   o Minor features (protocol simplification):
-    - Tor no longer allows subprotocol versions larger than 63.  Previously
-      versions up to UINT32_MAX were allowed, which significantly complicated
-      our code.
-      Implements proposal 318; closes ticket 40133.
+    - Tor no longer allows subprotocol versions larger than 63.
+      Previously versions up to UINT32_MAX were allowed, which
+      significantly complicated our code. Implements proposal 318;
+      closes ticket 40133.
 
   o Minor features (relay address tracking):
     - We store relay addresses for OR connections in a more logical way.
       Previously we would sometimes overwrite the actual address of a
       connection with a "canonical address", and then store the "real
-      address" elsewhere to remember it.  We now track the "canonical address"
-      elsewhere for the cases where we need it, and leave the connection's
-      address alone.  Closes ticket 33898.
+      address" elsewhere to remember it. We now track the "canonical
+      address" elsewhere for the cases where we need it, and leave the
+      connection's address alone. Closes ticket 33898.
 
   o Minor features (relay):
-    - Log immediately when launching a relay self-check.  Previously
-      we would try to log before launching checks, or approximately
-      when we intended to launch checks, but this tended to be
-      error-prone.  Closes ticket 34137.
+    - If a relay is unable to discover its address, attempt to learn it
+      from the NETINFO cell. Closes ticket 40022.
+    - Log immediately when launching a relay self-check. Previously we
+      would try to log before launching checks, or approximately when we
+      intended to launch checks, but this tended to be error-prone.
+      Closes ticket 34137.
+
+  o Minor features (relay, address discovery):
+    - If Address is not found in torrc, attempt to learn our address
+      with the configured ORPort address if any. Closes ticket 33236.
 
   o Minor features (relay, IPv6):
     - Add an AssumeReachableIPv6 option to disable self-checking IPv6
       reachability. Closes part of ticket 33224.
     - Add new "assume-reachable" and "assume-reachable-ipv6" parameters
       to be used in an emergency to tell relays that they should publish
-      even if they cannot complete their ORPort self-checks.
-      Closes ticket 34064 and part of 33224.
+      even if they cannot complete their ORPort self-checks. Closes
+      ticket 34064 and part of 33224.
 
   o Minor features (specification update):
-    - Several fields in microdescriptors, router descriptors, and consensus
-      documents that were formerly optional are now required. Implements
-      proposal 315; closes ticket 40132.
+    - Several fields in microdescriptors, router descriptors, and
+      consensus documents that were formerly optional are now required.
+      Implements proposal 315; closes ticket 40132.
 
   o Minor features (state):
-    - When loading the state file, remove entries from the statefile that
-      have been obsolete for a long time.  Ordinarily Tor preserves
+    - When loading the state file, remove entries from the statefile
+      that have been obsolete for a long time. Ordinarily Tor preserves
       unrecognized entries in order to keep forward-compatibility, but
       these statefile entries have not actually been used in any release
       since before the 0.3.5.x. Closes ticket 40137.
 
   o Minor features (statistics, ipv6):
-    - Relays now publish IPv6-specific counts of single-direction
-      versus bidirectional relay connections.
-      Closes ticket 33264.
+    - Relays now publish IPv6-specific counts of single-direction versus
+      bidirectional relay connections. Closes ticket 33264.
     - Relays now publish their IPv6 read and write statistics over time,
-      if statistics are enabled.
-      Closes ticket 33263.
+      if statistics are enabled. Closes ticket 33263.
 
   o Minor features (subprotocol versions):
     - Use the new limitations on subprotocol versions due to proposal
-      318 to simplify our implementation.  Part of ticket 40133.
+      318 to simplify our implementation. Part of ticket 40133.
 
   o Minor features (testing configuration):
-    - The TestingTorNetwork no longer implicitly sets AssumeReachable to 1.
-      This change will allow us to test relays' self-testing mechanisms,
-      and eventually to test authorities' relay-testing functionality.
-      Closes ticket 34446.
+    - The TestingTorNetwork no longer implicitly sets AssumeReachable to
+      1. This change will allow us to test relays' self-testing
+      mechanisms, and eventually to test authorities' relay-testing
+      functionality. Closes ticket 34446.
 
   o Minor features (testing):
     - Added unit tests for channel_matches_target_addr_for_extend().
       Closes Ticket 33919. Patch by MrSquanchee.
 
-  o Minor bugfixes (logging):
-    - Remove a debug logging statement that uselessly spam the logs. Fixes bug
-      40135; bugfix on 0.3.5.0-alpha.
+  o Minor bugfixes (security):
+    - When completing a channel, relays now check more thoroughly to
+      make sure that it matches any pending circuits before attaching
+      those circuits. Previously, address correctness and Ed25519
+      identities were not checked in this case, but only when extending
+      circuits on an existing channel. Fixes bug 40080; bugfix
+      on 0.2.7.2-alpha.
 
   o Minor bugfixes (circuit padding):
     - When circpad_send_padding_cell_for_callback is called,
-      `is_padding_timer_scheduled` flag was not reset. Now it is set to 0 at
-      the top of that function. Fixes bug 32671; bugfix on 0.4.0.1-alpha.
+      `is_padding_timer_scheduled` flag was not reset. Now it is set to
+      0 at the top of that function. Fixes bug 32671; bugfix
+      on 0.4.0.1-alpha.
     - Add a per-circuit padding machine instance counter, so we can
-      differentiate between shutdown requests for old machines on a circuit;
-      Fixes bug 30992; bugfix on 0.4.1.1-alpha.
-    - Add the abilility to keep circuit padding machines if they match a set
-      of circuit state or purposes. This allows us to have machines that start
-      up under some conditions but don't shut down under others. We now
-      use this mask to avoid starting up introduction circuit padding
-      again after the machines have already completed. Fixes bug 32040;
-      bugfix on 0.4.1.1-alpha.
+      differentiate between shutdown requests for old machines on a
+      circuit; Fixes bug 30992; bugfix on 0.4.1.1-alpha.
+    - Add the abilility to keep circuit padding machines if they match a
+      set of circuit state or purposes. This allows us to have machines
+      that start up under some conditions but don't shut down under
+      others. We now use this mask to avoid starting up introduction
+      circuit padding again after the machines have already completed.
+      Fixes bug 32040; bugfix on 0.4.1.1-alpha.
 
   o Minor bugfixes (compatibility):
     - Strip '\r' characters when reading text files on Unix platforms.
-      This should resolve an issue where a relay operator migrates a relay from
-      Windows to Unix, but does not change the line ending of Tor's various state
-      files to match the platform, the CRLF line endings from Windows ends up leaking
-      into other files such as the extra-info document. Fixes bug 33781; bugfix on
-      0.0.9pre5.
+      This should resolve an issue where a relay operator migrates a
+      relay from Windows to Unix, but does not change the line ending of
+      Tor's various state files to match the platform, the CRLF line
+      endings from Windows ends up leaking into other files such as the
+      extra-info document. Fixes bug 33781; bugfix on 0.0.9pre5.
 
   o Minor bugfixes (compilation):
     - Fix compiler warnings that would occur when building with
-      "--enable-all-bugs-are-fatal" and "--disable-module-relay"
-      at the same time. Fixes bug 40129; bugfix on 0.4.4.1-alpha.
-    - Resolve a compilation warning that could occur in test_connection.c.
-      Fixes bug 40113; bugfix on 0.2.9.3-alpha.
+      "--enable-all-bugs-are-fatal" and "--disable-module-relay" at the
+      same time. Fixes bug 40129; bugfix on 0.4.4.1-alpha.
+    - Resolve a compilation warning that could occur in
+      test_connection.c. Fixes bug 40113; bugfix on 0.2.9.3-alpha.
 
   o Minor bugfixes (configuration):
-    - Fix bug where %including a pattern ending with */ would include files
-      and folders (instead of folders only) in versions of glibc < 2.19.
-      Fixes bug 40141; bugfix on 0.4.5.0-alpha-dev. Patch by Daniel Pinto.
+    - Fix bug where %including a pattern ending with */ would include
+      files and folders (instead of folders only) in versions of glibc <
+      2.19. Fixes bug 40141; bugfix on 0.4.5.0-alpha-dev. Patch by
+      Daniel Pinto.
 
   o Minor bugfixes (logging):
-    - When logging a rate-limited message about how many messages have been
-      suppressed in the last N seconds, give an accurate value for N, rounded
-      up to the nearest minute.  Previously we would report the size of the
-      rate-limiting interval, regardless of when the messages started to
-      occur.  Fixes bug 19431; bugfix on 0.2.2.16-alpha.
+    - Remove a debug logging statement that uselessly spam the logs.
+      Fixes bug 40135; bugfix on 0.3.5.0-alpha.
+    - When logging a rate-limited message about how many messages have
+      been suppressed in the last N seconds, give an accurate value for
+      N, rounded up to the nearest minute. Previously we would report
+      the size of the rate-limiting interval, regardless of when the
+      messages started to occur. Fixes bug 19431; bugfix
+      on 0.2.2.16-alpha.
 
   o Minor bugfixes (protover):
-    - Consistently reject extra commas, instead of only rejecting leading commas.
-      Fixes bug 27194; bugfix on 0.2.9.4-alpha.
+    - Consistently reject extra commas, instead of only rejecting
+      leading commas. Fixes bug 27194; bugfix on 0.2.9.4-alpha.
 
   o Minor bugfixes (relay configuration, crash):
-    - Avoid a fatal assert() when failing to create a listener connection for an
-      address that was in use. Fixes bug 40073; bugfix on 0.3.5.1-alpha.
+    - Avoid a fatal assert() when failing to create a listener
+      connection for an address that was in use. Fixes bug 40073; bugfix
+      on 0.3.5.1-alpha.
 
   o Minor bugfixes (rust, protocol versions):
     - Declare support for the onion service introduction point denial of
-      service extensions, when building tor with Rust.
-      Fixes bug 34248; bugfix on 0.4.2.1-alpha.
+      service extensions, when building tor with Rust. Fixes bug 34248;
+      bugfix on 0.4.2.1-alpha.
     - Make Rust protocol version support checks consistent with the
-      undocumented error behaviour of the corresponding C code.
-      Fixes bug 34251; bugfix on 0.3.3.5-rc.
-
-  o Minor bugfixes (security):
-    - When completing a channel, relays now check more thoroughly to make
-      sure that it matches any pending circuits before attaching those
-      circuits. Previously, address correctness and Ed25519 identities were not
-      checked in this case, but only when extending circuits on an existing
-      channel. Fixes bug 40080; bugfix on 0.2.7.2-alpha.
+      undocumented error behaviour of the corresponding C code. Fixes
+      bug 34251; bugfix on 0.3.3.5-rc.
 
   o Minor bugfixes (self-testing):
-    - When receiving an incoming circuit, only accept it as evidence that we
-      are reachable if the declared address of its channel is the same
-      address we think that we have.  Otherwise, it could be evidence that
-      we're reachable on some other address. Fixes bug 20165; bugfix on
-      0.1.0.1-rc.
+    - When receiving an incoming circuit, only accept it as evidence
+      that we are reachable if the declared address of its channel is
+      the same address we think that we have. Otherwise, it could be
+      evidence that we're reachable on some other address. Fixes bug
+      20165; bugfix on 0.1.0.1-rc.
 
   o Minor bugfixes (SOCKS, onion services):
-    - Make sure we send the SOCKS request address in relay begin cells when a
-      stream is attached with the purpose CIRCUIT_PURPOSE_CONTROLLER. Fixes bug
-      33124; bugfix on 0.0.5. Patch by Neel Chauhan.
+    - Make sure we send the SOCKS request address in relay begin cells
+      when a stream is attached with the purpose
+      CIRCUIT_PURPOSE_CONTROLLER. Fixes bug 33124; bugfix on 0.0.5.
+      Patch by Neel Chauhan.
 
   o Minor bugfixes (spec conformance):
     - Use the correct key type when generating signing->link
-      certificates.  Fixes bug 40124; bugfix on 0.2.7.2-alpha.
+      certificates. Fixes bug 40124; bugfix on 0.2.7.2-alpha.
 
   o Minor bugfixes (string handling):
-    - In summarize_protover_flags(), treat empty strings the same as NULL.
-      This prevents protocols_known from being set. Previously, we treated
-      empty strings as normal strings, which led to protocols_known being
-      set. Fixes bug 34232; bugfix on 0.3.3.2-alpha. Patch by Neel Chauhan.
+    - In summarize_protover_flags(), treat empty strings the same as
+      NULL. This prevents protocols_known from being set. Previously, we
+      treated empty strings as normal strings, which led to
+      protocols_known being set. Fixes bug 34232; bugfix on
+      0.3.3.2-alpha. Patch by Neel Chauhan.
 
   o Minor bugfixes (v2 onion services):
-    - For HSFETCH commands on v2 onion services addresses, check the length of
-      bytes decoded, not the base32 length. This takes the behavior introduced
-      in commit a517daa56f5848d25ba79617a1a7b82ed2b0a7c0 into consideration.
-      Fixes bug 34400; bugfix on 0.4.1.1-alpha. Patch by Neel Chauhan.
-
-  o Code simplification and refactoring (autoconf):
-    - Remove autoconf checks for unused funcs and headers. Closes ticket
-      31699; Patch by @bduszel
-
-  o Code simplification and refactoring (maintainer scripts):
-    - Disable by default the pre-commit hook. Use the environment variable
-      TOR_EXTRA_PRE_COMMIT_CHECKS in order to run it. Furthermore, stop running
-      practracker in the pre-commit hook and make check-local. Closes ticket
-      40019.
-
-  o Code simplification and refactoring (relay address):
-    - Most of IPv4 representation was using "uint32_t". It has now been moved to
-      use the internal "tor_addr_t" interface instead. This is so we can
-      properly integrate IPv6 along IPv4 with common interfaces. Closes ticket
-      40043.
+    - For HSFETCH commands on v2 onion services addresses, check the
+      length of bytes decoded, not the base32 length. This takes the
+      behavior introduced in commit
+      a517daa56f5848d25ba79617a1a7b82ed2b0a7c0 into consideration. Fixes
+      bug 34400; bugfix on 0.4.1.1-alpha. Patch by Neel Chauhan.
 
   o Code simplification and refactoring:
     - Add and use a set of functions to perform downcasts on constant
       connection and channel pointers. Closes ticket 40046.
-    - Refactor our code that logs a descriptions of connections, channels,
-      and the peers on them, to use a single call path. This change
-      enables us to refactor the data types that they use, and eliminate
-      many confusing users of those types. Closes ticket 40041.
+    - Refactor our code that logs a descriptions of connections,
+      channels, and the peers on them, to use a single call path. This
+      change enables us to refactor the data types that they use, and
+      eliminate many confusing users of those types. Closes ticket 40041.
     - Refactor some common node selection code into a single function.
       Closes ticket 34200.
-    - Remove the now-redundant 'outbuf_flushlen' field from our connection
-      type. It was previously used for an older version of our rate-limiting
-      logic. Closes ticket 33097.
-    - Rename "fascist_firewall_*" identifiers to "reachable_addr_*" instead,
-      for consistency with other code. Closes ticket 18106.
+    - Remove the now-redundant 'outbuf_flushlen' field from our
+      connection type. It was previously used for an older version of
+      our rate-limiting logic. Closes ticket 33097.
+    - Rename "fascist_firewall_*" identifiers to "reachable_addr_*"
+      instead, for consistency with other code. Closes ticket 18106.
     - Rename functions about "advertised" ports which are not in fact
       guaranteed to return the ports have been advertised. Closes
       ticket 40055.
     - Split implementation of several command line options from
-      options_init_from_torrc into smaller isolated functions.
-      Patch by Daniel Pinto. Closes ticket 40102.
-    - When an extend cell is missing an IPv4 or IPv6 address, fill in the address
-      from the extend info. This is similar to what was done in ticket 33633 for
-      ed25519 keys. Closes ticket 33816. Patch by Neel Chauhan.
+      options_init_from_torrc into smaller isolated functions. Patch by
+      Daniel Pinto. Closes ticket 40102.
+    - When an extend cell is missing an IPv4 or IPv6 address, fill in
+      the address from the extend info. This is similar to what was done
+      in ticket 33633 for ed25519 keys. Closes ticket 33816. Patch by
+      Neel Chauhan.
 
   o Deprecated features:
     - The "non-builtin" argument to the "--dump-config" command is now
-      deprecated.  When it works, it behaves the same as "short", which
+      deprecated. When it works, it behaves the same as "short", which
       you should use instead. Closes ticket 33398.
 
+  o Documentation:
+    - Replace URLs from our old bugtracker so that they refer to the new
+      bugtracker and wiki. Closes ticket 40101.
+
+  o Removed features:
+    - We no longer ship or build a "tor.service" file for use with
+      systemd. No distribution included this script unmodified, and we
+      don't have the expertise ourselves to maintain this in a way that
+      all the various systemd-based distributions can use. Closes
+      ticket 30797.
+    - We no longer ship support for the Android logging API. Modern
+      versions of Android can use the syslog API instead. Closes
+      ticket 32181.
+
+  o Testing:
+    - Add unit tests for bandwidth statistics manipulation functions.
+      Closes ticket 33812. Patch by MrSquanchee.
+
+  o Code simplification and refactoring (autoconf):
+    - Remove autoconf checks for unused funcs and headers. Closes ticket
+      31699; Patch by @bduszel
+
+  o Code simplification and refactoring (maintainer scripts):
+    - Disable by default the pre-commit hook. Use the environment
+      variable TOR_EXTRA_PRE_COMMIT_CHECKS in order to run it.
+      Furthermore, stop running practracker in the pre-commit hook and
+      make check-local. Closes ticket 40019.
+
+  o Code simplification and refactoring (relay address):
+    - Most of IPv4 representation was using "uint32_t". It has now been
+      moved to use the internal "tor_addr_t" interface instead. This is
+      so we can properly integrate IPv6 along IPv4 with common
+      interfaces. Closes ticket 40043.
+
   o Documentation (manpages):
     - Move them from doc/ to doc/man/. Closes ticket 40044.
 
   o Documentation (manual page):
-    - Describe the status of the "Sandbox" option more accurately. It is no
-      longer "experimental", but it _is_ dependent on kernel and libc
+    - Describe the status of the "Sandbox" option more accurately. It is
+      no longer "experimental", but it _is_ dependent on kernel and libc
       versions. Closes ticket 23378.
 
   o Documentation (tracing):
     - Document in depth the circuit subsystem trace events in the new
       doc/tracing/EventsCircuit.md. Closes ticket 40036.
 
-  o Documentation:
-    - Replace URLs from our old bugtracker so that they refer to the
-      new bugtracker and wiki. Closes ticket 40101.
-
   o Removed features (network parameters):
-     - The "optimistic data" feature is now always on; there is no longer an
-       option to disable it from the torrc file or from the consensus
-       directory.
-       Closes part of 40139.
-     - The "usecreatefast" network parameter is now removed; there is no
-       longer an option for authorities to turn it off. Closes part of 40139.
-
-  o Removed features:
-    - We no longer ship or build a "tor.service" file for use with systemd.
-      No distribution included this script unmodified, and we don't have the
-      expertise ourselves to maintain this in a way that all the various
-      systemd-based distributions can use. Closes ticket 30797.
-    - We no longer ship support for the Android logging API. Modern
-      versions of Android can use the syslog API instead.
-      Closes ticket 32181.
 
   o Testing (CI):
     - Build tracing configure option into our CI. Closes ticket 40038.
 
   o Testing (onion service v2):
-    - Fix a rendezvous cache unit test that was triggering an underflow on the
-      global rend cache allocation. Fixes bug 40125; bugfix on
-      0.2.8.1-alpha.
-    - Fix another rendezvous cache unit test that was triggering an underflow on the
-      global rend cache allocation. Fixes bug 40126; bugfix on
-      0.2.8.1-alpha.
-
-  o Testing:
-    - Add unit tests for bandwidth statistics manipulation functions.
-      Closes ticket 33812. Patch by MrSquanchee.
-
+    - Fix a rendezvous cache unit test that was triggering an underflow
+      on the global rend cache allocation. Fixes bug 40125; bugfix
+      on 0.2.8.1-alpha.
+    - Fix another rendezvous cache unit test that was triggering an
+      underflow on the global rend cache allocation. Fixes bug 40126;
+      bugfix on 0.2.8.1-alpha.
 
 
 Changes in version 0.4.4.5 - 2020-09-15



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