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[tor-commits] [tor/master] copy changelog entries forward
commit 1b74c4904857cd917a0e672eccb7794a3c77c258
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date: Mon Feb 15 13:09:30 2021 -0500
copy changelog entries forward
---
ChangeLog | 59 ++++++++
ReleaseNotes | 466 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 525 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 76e2950161..ca10337e11 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,62 @@
+
+Changes in version 0.4.5.6 - 2021-02-15
+ The Tor 0.4.5.x release series is dedicated to the memory of Karsten
+ Loesing (1979-2020), Tor developer, cypherpunk, husband, and father.
+ Karsten is best known for creating the Tor metrics portal and leading
+ the metrics team, but he was involved in Tor from the early days. For
+ example, while he was still a student he invented and implemented the
+ v2 onion service directory design, and he also served as an ambassador
+ to the many German researchers working in the anonymity field. We
+ loved him and respected him for his patience, his consistency, and his
+ welcoming approach to growing our community.
+
+ This release series introduces significant improvements in relay IPv6
+ address discovery, a new "MetricsPort" mechanism for relay operators
+ to measure performance, LTTng support, build system improvements to
+ help when using Tor as a static library, and significant bugfixes
+ related to Windows relay performance. It also includes numerous
+ smaller features and bugfixes.
+
+ Below are the changes since 0.4.4.4-rc. For a complete list of changes
+ since 0.4.4.7, see the ReleaseNotes file.
+
+ o Major bugfixes (IPv6, relay):
+ - Fix a bug that prevented a relay from publishing its descriptor if
+ an auto-discovered IPv6 that was found unreachable. Fixes bug
+ 40279; bugfix on 0.4.5.1-alpha.
+
+ o Minor features (protocol versions):
+ - Stop claiming to support the "DirCache=1" subprotocol version.
+ Technically, we stopped supporting this subprotocol back in
+ 0.4.5.1-alpha, but we needed to wait for the authorities to stop
+ listing it as "required" before we could drop it from the list.
+ Closes ticket 40221.
+
+ o Minor bugfixes (logging):
+ - Avoid a spurious log message about missing subprotocol versions,
+ when the consensus that we're reading from is older than the
+ current release. Previously we had made this message nonfatal, but
+ in practice, it is never relevant when the consensus is older than
+ the current release. Fixes bug 40281; bugfix on 0.4.0.1-alpha.
+
+ o Minor bugfixes (metrics port):
+ - Fix a bug warning when a metrics port socket was unexpectedly
+ closed. Fixes bug 40257; bugfix on 0.4.5.1-alpha
+
+ o Minor bugfixes (relay):
+ - Allow relays to have a RFC1918 address if PublishServerDescriptor
+ is set to 0 and AssumeReachable is set to 1. This is to support
+ the use case of a bridge on a local network, exposed via a
+ pluggable transport. Fixes bug 40208; bugfix on 0.4.5.1-alpha.
+
+ o Minor bugfixes (relay, config):
+ - Fix a problem in the removal of duplicate ORPorts from the
+ internal port list when loading the config file. We were removing
+ the wrong ports, breaking valid torrc uses cases for multiple
+ ORPorts of the same address family. Fixes bug 40289; bugfix
+ on 0.4.5.1-alpha.
+
+
Changes in version 0.4.4.7 - 2021-02-03
Tor 0.4.4.7 backports numerous bugfixes from later releases,
including one that made v3 onion services more susceptible to
diff --git a/ReleaseNotes b/ReleaseNotes
index 0a3b4e68ce..b4dbe9d4dd 100644
--- a/ReleaseNotes
+++ b/ReleaseNotes
@@ -2,6 +2,472 @@ This document summarizes new features and bugfixes in each stable
release of Tor. If you want to see more detailed descriptions of the
changes in each development snapshot, see the ChangeLog file.
+
+Changes in version 0.4.5.6 - 2021-02-15
+ The Tor 0.4.5.x release series is dedicated to the memory of Karsten
+ Loesing (1979-2020), Tor developer, cypherpunk, husband, and father.
+ Karsten is best known for creating the Tor metrics portal and leading
+ the metrics team, but he was involved in Tor from the early days. For
+ example, while he was still a student he invented and implemented the
+ v2 onion service directory design, and he also served as an ambassador
+ to the many German researchers working in the anonymity field. We
+ loved him and respected him for his patience, his consistency, and his
+ welcoming approach to growing our community.
+
+ This release series introduces significant improvements in relay IPv6
+ address discovery, a new "MetricsPort" mechanism for relay operators
+ to measure performance, LTTng support, build system improvements to
+ help when using Tor as a static library, and significant bugfixes
+ related to Windows relay performance. It also includes numerous
+ smaller features and bugfixes.
+
+ Below are the changes since 0.4.4.7. For a list of changes since
+ 0.4.5.5-rc, see the ChangeLog file.
+
+ o Major features (build):
+ - 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.
+
+ o Major features (metrics):
+ - Introduce a new MetricsPort which exposes, through an HTTP
+ interface, a series of metrics that tor collects at runtime. At
+ the moment, the only supported output format is Prometheus data
+ model. Closes ticket 40063. See the manual page for more
+ information and security considerations.
+
+ o Major features (relay, IPv6):
+ - The torrc option Address now supports IPv6. This unifies our
+ address discovery interface to support IPv4, IPv6, and hostnames.
+ Closes ticket 33233.
+ - Launch IPv4 and IPv6 ORPort self-test circuits on relays and
+ bridges. Closes ticket 33222.
+ - 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 is told to open 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 ticket 33220.
+ - Relays now track their IPv6 ORPort reachability 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 (tracing):
+ - Add event-tracing library support for USDT and LTTng-UST, and a
+ few tracepoints 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 bugfixes (directory cache, performance, windows):
+ - Limit the number of items in the consensus diff cache to 64 on
+ Windows. We hope this will mitigate an issue where Windows relay
+ operators reported Tor using 100% CPU, while we investigate better
+ solutions. Fixes bug 24857; bugfix on 0.3.1.1-alpha.
+
+ o Major bugfixes (relay, windows):
+ - Fix a bug in our implementation of condition variables on Windows.
+ Previously, a relay on Windows would use 100% CPU after running
+ for some time. Because of this change, Tor now require Windows
+ Vista or later to build and run. Fixes bug 30187; bugfix on
+ 0.2.6.3-alpha. (This bug became more serious in 0.3.1.1-alpha with
+ the introduction of consensus diffs.) Patch by Daniel Pinto.
+
+ o Major bugfixes (TLS, buffer):
+ - When attempting to read N bytes on a TLS connection, really try to
+ read all N bytes. Previously, Tor would stop reading after the
+ first TLS record, which can be smaller than the N bytes requested,
+ and not check for more data until 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 (admin tools):
+ - Add a new --format argument to -key-expiration option to allow
+ specifying the time format of the expiration date. Adds Unix
+ timestamp format support. Patch by Daniel Pinto. Closes
+ ticket 30045.
+
+ o Minor features (authority, logging):
+ - Log more information for directory authority operators during the
+ consensus voting process, and while processing relay descriptors.
+ Closes ticket 40245.
+
+ 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 connections that had been opened
+ because of client requests. Closes ticket 25061.
+
+ o Minor features (build):
+ - 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.
+
+ o Minor features (configuration):
+ - Allow using wildcards (* and ?) with the %include option on
+ configuration files. Closes ticket 25140. Patch by Daniel Pinto.
+ - Allow the 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 command to drop circuit build timeout history
+ and reset the current timeout. Closes ticket 40002.
+ - When a stream enters the AP_CONN_STATE_CONTROLLER_WAIT status,
+ send a control port event. Closes ticket 32190. Patch by
+ Neel Chauhan.
+ - Introduce GETINFO "stats/ntor/{assigned/requested}" and
+ "stats/tap/{assigned/requested}" to get the NTor and TAP circuit
+ onion handshake counts respectively. Closes ticket 28279. Patch by
+ Neel Chauhan.
+
+ o Minor features (control port, IPv6):
+ - Tor relays now try to report to the controller when they are
+ launching an IPv6 self-test. Closes ticket 34068.
+ - 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 backwards-compatibility.
+ Closes ticket 40039. Patch by Neel Chauhan.
+
+ o Minor features (directory authorities):
+ - Add a new consensus method 30 that removes the unnecessary "="
+ padding from ntor-onion-key. Closes ticket 7869. Patch by
+ Daniel Pinto.
+ - Directory authorities now reject descriptors from relays running
+ Tor versions from the obsolete 0.4.1 series. Resolves ticket
+ 34357. Patch by Neel Chauhan.
+ - 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.
+
+ o Minor features (directory authorities, IPv6):
+ - Make authorities add their IPv6 ORPort (if any) to the trusted
+ servers list. Authorities previously added only their IPv4
+ addresses. Closes ticket 32822.
+
+ o Minor features (documentation):
+ - Mention the "!badexit" directive that can appear in an authority's
+ approved-routers file, and update the description of the
+ "!invalid" directive. Closes ticket 40188.
+
+ 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.
+
+ o Minor features (heartbeat):
+ - Include the total number of inbound and outbound IPv4 and IPv6
+ connections in the heartbeat message. Closes ticket 29113.
+
+ o Minor features (IPv6, ExcludeNodes):
+ - Handle IPv6 addresses in ExcludeNodes; previously they were
+ ignored. Closes ticket 34065. Patch by Neel Chauhan.
+
+ o Minor features (logging):
+ - Add the running glibc version to the log, and the compiled glibc
+ version to the library list returned when using --library-versions.
+ Patch from Daniel Pinto. Closes ticket 40047.
+ - Consider an HTTP 301 response to be an error (like a 404) when
+ processing a directory response. Closes ticket 40053.
+ - Log directory fetch statistics as 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 the logs, we now include its ed25519
+ identity. Closes ticket 22668.
+
+ o Minor features (onion services):
+ - Only overwrite an onion service's existing hostname file if its
+ contents are wrong. This enables read-only onion-service
+ directories. Resolves ticket 40062. Patch by Neel Chauhan.
+
+ o Minor features (pluggable transports):
+ - Add an OutboundBindAddressPT option to allow users to specify
+ which IPv4 and IPv6 address pluggable transports should use for
+ outgoing IP packets. Tor does not have a way to enforce that the
+ pluggable transport honors this option, so each pluggable transport
+ needs to implement support on its own. Closes ticket 5304.
+
+ o Minor features (protocol, proxy support, defense in depth):
+ - Respond more deliberately to misbehaving proxies that leave
+ leftover data on their connections, so as to make Tor even less
+ likely to allow the proxies to pass their data off as having come
+ from a relay. Closes ticket 40017.
+
+ o Minor features (relay address tracking):
+ - We now 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.
+
+ o Minor features (relay):
+ - 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 option 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" consensus
+ 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.
+ - Allow relays to send IPv6-only extend cells. Closes ticket 33222.
+ - 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 (safety):
+ - Log a warning at startup if Tor is built with compile-time options
+ that are likely to make it less stable or reliable. Closes
+ ticket 18888.
+
+ 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.
+
+ o Minor features (state management):
+ - 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 entries have not actually been used in any release since
+ before 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 their IPv6 read and write statistics over time,
+ 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.
+
+ o Minor features (testing configuration):
+ - The TestingTorNetwork option no longer implicitly sets
+ AssumeReachable to 1. This change allows us to test relays' self-
+ testing mechanisms, and 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 (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.
+ - 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 ability to keep circuit padding machines if they match a
+ set of circuit states 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 (circuit, handshake):
+ - In the v3 handshaking code, use connection_or_change_state() to
+ change the state. Previously, we changed the state directly, but
+ this did not pass the state change to the pubsub or channel
+ objects, potentially leading to bugs. Fixes bug 32880; bugfix on
+ 0.2.3.6-alpha. Patch by Neel Chauhan.
+
+ o Minor bugfixes (compilation):
+ - Change the linker flag ordering in our library search code so that
+ it works for compilers that need the libraries to be listed in the
+ right order. Fixes bug 33624; bugfix on 0.1.1.0-alpha.
+ - Fix the "--enable-static-tor" switch to properly set the "-static"
+ compile option onto the tor binary only. Fixes bug 40111; bugfix
+ on 0.2.3.1-alpha.
+
+ o Minor bugfixes (configuration):
+ - Exit Tor on a misconfiguration when the Bridge line is configured
+ to use a transport but no corresponding ClientTransportPlugin can
+ be found. Prior to this fix, Tor would attempt to connect to the
+ bridge directly without using the transport, making it easier for
+ adversaries to notice the bridge. Fixes bug 25528; bugfix
+ on 0.2.6.1-alpha.
+
+ o Minor bugfixes (control port):
+ - 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 (crash, relay, signing key):
+ - Avoid assertion failures when we run Tor from the command line
+ with `--key-expiration sign`, but an ORPort is not set. Fixes bug
+ 40015; bugfix on 0.3.2.1-alpha. Patch by Neel Chauhan.
+
+ o Minor bugfixes (logging):
+ - Avoid a spurious log message about missing subprotocol versions,
+ when the consensus that we're reading from is older than the
+ current release. Previously we had made this message nonfatal, but
+ in practice, it is never relevant when the consensus is older than
+ the current release. Fixes bug 40281; bugfix on 0.4.0.1-alpha.
+ - Remove trailing whitespace from control event log messages. Fixes
+ bug 32178; bugfix on 0.1.1.1-alpha. Based on a patch by
+ Amadeusz Pawlik.
+ - Turn warning-level log message about SENDME failure into a debug-
+ level message. (This event can happen naturally, and is no reason
+ for concern). Fixes bug 40142; bugfix on 0.4.1.1-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 (onion services):
+ - Avoid a non-fatal assertion in certain edge-cases when
+ establishing a circuit to an onion service. Fixes bug 32666;
+ bugfix on 0.3.0.3-alpha.
+
+ o Minor bugfixes (rust, protocol versions):
+ - Declare support for the onion service introduction point denial of
+ service extensions when building with Rust. Fixes bug 34248;
+ bugfix on 0.4.2.1-alpha.
+ - Make Rust protocol version support checks consistent with the
+ undocumented error behavior 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.
+
+ 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.
+
+ o Minor bugfixes (subprotocol versions):
+ - Consistently reject extra commas, instead of only rejecting
+ leading commas. Fixes bug 27194; bugfix on 0.2.9.4-alpha.
+ - 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 Code simplification and refactoring:
+ - Add and use a set of functions to perform down-casts on constant
+ connection and channel pointers. Closes ticket 40046.
+ - Refactor our code that logs 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 eliminates
+ many confusing usages 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.
+ - Rename functions about "advertised" ports which are not in fact
+ guaranteed to return the ports that 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.
+
+ 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
+ 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.
+ - 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 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 (manual page):
+ - Move them from doc/ to doc/man/. Closes ticket 40044.
+ - 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 Removed features (controller):
+ - Remove the "GETINFO network-status" controller command. It has
+ been deprecated since 0.3.1.1-alpha. Closes ticket 22473.
+
+
Changes in version 0.4.4.7 - 2021-02-03
Tor 0.4.4.7 backports numerous bugfixes from later releases,
including one that made v3 onion services more susceptible to
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