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ChangeLog
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ChangeLog
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Changes in version 0.3.3.1-alpha - 2018-01-??:
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Blurb goes here
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o Major features (onion services, security):
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- Provide torrc options to pin the second and third hops of onion
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service circuits to a list of nodes. The option HSLayer2Guards
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pins the second hop, and the option HSLayer3Guards pins the third
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hop. Closes ticket 13837.
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Changes in version 0.3.3.1-alpha - 2018-01-25:
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Tor 0.3.3.1-alpha is the first release
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o Major features (embedding):
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- There is now a documented stable API for programs that need to
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@ -14,35 +8,39 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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- Tor now has support for restarting in the same process.
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Controllers that run Tor using the "tor_api.h" interface can now
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restart Tor after Tor has exited. This support is incomplete,
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however: we have fixed the crash bugs that prevented it from
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working at all before, but many bugs probably remain, including
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the possibility of security issues. Implements ticket 24581.
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however: we fixed crash bugs that prevented it from working at
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all, but many bugs probably remain, including a possibility of
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security issues. Implements ticket 24581.
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o Major features (IPv6, directory documents):
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- Add consensus method 27, which adds IPv6 ORPorts to the microdesc
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consensus. This makes it easier for IPv6 clients to bootstrap and
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choose reachable entry guards. Implements 23826.
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consensus. This information it easier for IPv6 clients to
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bootstrap and choose reachable entry guards. Implements 23826.
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- Add consensus method 28, which removes IPv6 ORPorts from
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microdescriptors. Now that there are IPv6 ORPorts in the microdesc
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consensus, they are redundant in microdescs. This change is
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compatible with tor clients on 0.2.8.x and later. (That is to say,
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with all Tor clients having IPv6 bootstrap and guard support.)
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microdescriptors. Now that there are the consensus contains IPv6
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ORPorts, they are redundant in microdescs. This change will be
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used by tor clients on 0.2.8.x and later. (That is to say, with
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all Tor clients having IPv6 bootstrap and guard support.)
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Implements 23828.
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- Expand the documentation for AuthDirHasIPv6Connectivity when it is
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set by different numbers of authorities. Fixes 23870
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on 0.2.4.1-alpha.
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o Major features (onion service v3, control port):
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- Control port now supports command and events for v3 onion
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services. See proposal 284 for more information on what has been
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done exactly. Only the HSFETCH command hasn't been implemented at
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this stage because of a lack of use case with v3.
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- The control port now supports command and events for v3 onion
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services: It is now possible to create ephemeral v3 services using
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ADD_ONION. Additionally, several events (HS_DESC, HS_DESC_CONTENT,
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CIRC and CIRC_MINOR) and commands (GETINFO, HSPOST, ADD_ONION and
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DEL_ONION) have been extended to support v3 onion services. Closes
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ticket 20699; implements proposal 284.
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It is now possible to create ephemeral v3 services using the
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ADD_ONION command. Additionally, several events (HS_DESC,
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HS_DESC_CONTENT, CIRC and CIRC_MINOR) and commands (GETINFO,
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HSPOST, ADD_ONION and DEL_ONION) have been extended to support v3
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onion services. Closes ticket 20699.
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o Major features (onion services):
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- Provide torrc options to pin the second and third hops of onion
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service circuits to a list of nodes. The option HSLayer2Guards
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pins the second hop, and the option HSLayer3Guards pins the third
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hop. These options are for use in conjunction with experiments
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with a "vanguards" for preventing guard enumeration attacks.
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Closes ticket 13837.
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o Major features (rust, portability, experimental):
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- Tor now ships with an optional implementation of one of its
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@ -54,18 +52,18 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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Implementation by Chelsea Komlo. Closes ticket 22840.
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o Major features (storage, configuration):
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- Users can choose to store cached directory documents somewhere
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other than the DataDirectory by using the CacheDirectory option.
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Similarly, the storage location for relay's keys can be overridden
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with the KeyDirectory option. Closes ticket 22703.
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- Users can store cached directory documents somewhere other than
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the DataDirectory by using the CacheDirectory option. Similarly,
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the storage location for relay's keys can be overridden with the
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KeyDirectory option. Closes ticket 22703.
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o Major features (v3 onion services, ipv6):
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- When v3 onion service clients send introduce cells, include the
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IPv6 address of the rendezvous point, if it has one. v3 onion
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services running 0.3.2 ignore IPv6 addresses. In future Tor
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versions, IPv6-only v3 single onion services can use IPv6
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addresses to connect directly to the rendezvous point. Closes
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ticket 23577. Patch by Neel Chauhan.
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- When v3 onion service clients send introduce cells, they now
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include the IPv6 address of the rendezvous point, if it has one.
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Current v3 onion services running 0.3.2 ignore IPv6 addresses, but
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in future Tor versions, IPv6-only v3 single onion services will be
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able to IPv6 addresses to connect directly to the rendezvous
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point. Closes ticket 23577. Patch by Neel Chauhan.
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o Major bugfixes (onion services, retry behavior):
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- Fix an "off by 2" error in counting rendezvous failures on the
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@ -99,11 +97,6 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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- Tor now deletes the CookieAuthFile and ExtORPortCookieAuthFile
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when it stops. Closes ticket 23271.
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o Minor features (code correctness, descriptors):
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- Check that microdesc ed25519 ids are non-zero in
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node_get_ed25519_id(), before returning them. Implements 24001,
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patch by "aruna1234".
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o Minor features (defensive programming):
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- Most of the functions in Tor that free objects have been replaced
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with macros that free the objects and set the corresponding
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@ -111,6 +104,9 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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dangling pointer bugs. Closes ticket 24337.
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- Where possible, the tor_free() macro now only evaluates its input
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once. Part of ticket 24337.
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- Check that microdesc ed25519 ids are non-zero in
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node_get_ed25519_id() before returning them. Implements 24001,
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patch by "aruna1234".
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o Minor features (directory authority):
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- Make the "Exit" flag assignment only depend on whether the exit
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@ -128,14 +124,13 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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- On most errors that would cause Tor to exit, it now tries to
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return from the tor_main() function, rather than calling the
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system exit() function. Most users won't notice a difference here,
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but it should make a significant difference on platforms that try
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to run Tor inside a separate thread: they should now be able to
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survive Tor's exit conditions rather than having Tor shut down the
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entire process. Closes ticket 23848.
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but it should make a significant for programs that run Tor inside
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a separate thread: they should now be able to survive Tor's exit
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conditions rather than having Tor shut down the entire process.
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Closes ticket 23848.
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- Applications that want to embed Tor can now tell Tor not to
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register any of its own POSIX signal handlers, using the
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__DisableSignalHandlers option. This option is not meant for
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general use. Closes ticket 24588.
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__DisableSignalHandlers option. Closes ticket 24588.
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o Minor features (fallback directory list):
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- Avoid selecting fallbacks that change their IP addresses too
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@ -172,6 +167,8 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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entries. Ticket 24681 will maintain the current fallback weights
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by changing Tor's default fallback weight to 10. Implements
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ticket 24679.
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- Stop logging excessive information about fallback netblocks.
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Implements ticket 24791.
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o Minor features (forward-compatibility):
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- If a relay supports some link authentication protocol that we do
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@ -201,12 +198,6 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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- Added support for the Android logging subsystem. Closes
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ticket 24362.
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o Minor features (OSX, iOS, performance):
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- Use the mach_approximate_time() function (when available) to
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implement coarse monotonic time. Having a coarse time function
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should avoid a large number of system calls, and improve
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performance slightly, especially under load. Closes ticket 24427.
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o Minor features (performance):
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- Support predictive circuit building for onion service circuits
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with multiple layers of guards. Closes ticket 23101.
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@ -221,6 +212,12 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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when timestamping cells and buffer chunks for OOM calculations.
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Implements ticket 24374.
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o Minor features (performance, OSX, iOS):
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- Use the mach_approximate_time() function (when available) to
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implement coarse monotonic time. Having a coarse time function
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should avoid a large number of system calls, and improve
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performance slightly, especially under load. Closes ticket 24427.
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o Minor features (performance, windows):
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- Improve performance on Windows Vista and Windows 7 by adjusting
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TCP send window size according to the recommendation from
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@ -263,13 +260,6 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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the TOR_RUST_DEPENDENCIES option set. Fixes bug 22768; bugfix
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on 0.3.1.7.
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o Minor bugfixes (code correctness):
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- Stop invoking undefined behavior by using tor_free() on an
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unaligned pointer in get_interface_addresses_ioctl(). This pointer
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alignment issue exists on x86_64 macOS, but is unlikely to exist
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elsewhere. Fixes bug 24733; bugfix on 0.3.0.0-alpha-dev; not in
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any released version of tor.
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o Minor bugfixes (directory authorities, IPv6):
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- When creating a routerstatus (vote) from a routerinfo (descriptor),
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set the IPv6 address to the unspecified IPv6 address, and
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@ -281,12 +271,10 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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don't put it in /usr/bin.) Fixes bug 24708; bugfix
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on 0.2.8.1-alpha.
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o Minor bugfixes (hibernation):
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o Minor bugfixes (hibernation, bandwidth accounting, shutdown):
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- When hibernating, close connections normally and allow them to
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flush. Fixes bug 23571; bugfix on 0.2.4.7-alpha. Also fixes
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bug 7267.
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o Minor bugfixes (hibernation, bandwidth accounting, shutdown):
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- Do not attempt to launch self-reachability tests when entering
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hibernation. Fixes a base of bug 12062; bugfix on 0.0.9pre5.
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- Resolve several bugs related to descriptor fetching on bridge
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@ -299,11 +287,11 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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Fixes a case of bug 12062; bugfix on 0.0.9pre5.
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o Minor bugfixes (IPv6, bridges):
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- Tor now always sets IPv6 preferences for bridges, even if there is
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only router information or router status and warns about them.
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Fixes bug 24573; bugfix on 0.2.8.2-alpha.
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- Tor now sets IPv6 address in rs as well as it's set the one in ri.
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Closes ticket 24572; bugfix on 0.2.4.5-alpha. Patch by "ffmancera".
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- Tor now always sets IPv6 preferences for bridges. Fixes bug 24573;
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bugfix on 0.2.8.2-alpha.
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- Tor now sets IPv6 address in the routerstatus as well as in the
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router descriptors when updating addresses for a bridge. Closes
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ticket 24572; bugfix on 0.2.4.5-alpha. Patch by "ffmancera".
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o Minor bugfixes (linux seccomp2 sandbox):
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- When running with the sandbox enabled, reload configuration files
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@ -323,7 +311,12 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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limit (which can happen sometimes on some versions of OSX). Fixes
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bug 21074; bugfix on 0.0.9pre5.
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o Minor bugfixes (performance):
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o Minor bugfixes (performance, fragile-hardening):
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- Improve the performance of our consensus-diff application code
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when Tor is built with the --enable-fragile-hardening option set.
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Fixes bug 24826; bugfix on 0.3.1.1-alpha.
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o Minor bugfixes (performance, timeouts):
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- Consider circuits for timeout as soon as they complete a hop. This
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is more accurate than applying the timeout in
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circuit_expire_building() because that function is only called
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@ -336,11 +329,6 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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from all circuits at the point where they complete their third
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hop. Fixes bug 23100; bugfix on 0.2.2.2-alpha.
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o Minor bugfixes (performance, fragile-hardening):
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- Improve the performance of our consensus-diff application code
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when Tor is built with the --enable-fragile-hardening option set.
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Fixes bug 24826; bugfix on 0.3.1.1-alpha.
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o Minor bugfixes (testing):
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- Give out Exit flags in bootstrapping networks. Fixes bug 24137;
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bugfix on 0.2.3.1-alpha.
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@ -375,7 +363,7 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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o Documentation:
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- Add documentation on how to build tor with Rust dependencies
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without requiring being online. Closes ticket 22907; bugfix
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without having to beonline. Closes ticket 22907; bugfix
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on 0.3.0.3-alpha.
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- Clarify the behavior of RelayBandwidth{Rate,Burst} with client
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traffic. Closes ticket 24318.
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@ -386,31 +374,24 @@ Changes in version 0.3.3.1-alpha - 2018-01-??:
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ticket 24526.
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o Code simplification and refactoring (channels):
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- Remove the incoming and outgoing channel queues. The reason to do
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so was due to the fact that they were always empty meaning never
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used but still looked at in our fast path. Bottom line, it was an
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unused code path.
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- Remove the incoming and outgoing channel queues: These were never
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used, but still took up a step in our fast path.
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- The majority of the channel unit tests have been rewritten and the
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code coverage has now been raised to 83.6% for channel.c. Closes
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ticket 23709.
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- We've simplify a lot the channel subsystem by removing those
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queues but also by removing a lot of unused code or dead code
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around it. Overall this is a cleanup removing more than 1500 lines
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of code overall and adding very little except for unit test.
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- Remove other dead code from the a lot the channel subsystem: All
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together, this cleanup has removed more than 1500 lines of code
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overall and adding very little except for unit test.
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o Code simplification and refactoring (circuit rendezvous):
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- Split get rendezvous circuit on client side on two different
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functions. One that returns only established circuits and another
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- Split the client-size rendezvous circuit lookup into two
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functions: one that returns only established circuits and another
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that returns all kinds of circuits. Closes ticket 23459.
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o Code simplification and refactoring (controller):
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- Make most of the variables in networkstatus_getinfo_by_purpose()
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const. Implements ticket 24489.
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o Code simplification and refactoring (fallbacks):
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- Stop logging excessive information about fallback netblocks.
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Implements ticket 24791.
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Changes in version 0.3.2.9 - 2018-01-09
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Tor 0.3.2.9 is the first stable release in the 0.3.2 series.
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