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@@ -1,3 +1,92 @@
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+Changes in version 0.3.3.5-rc - 2018-04-15
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+ Tor 0.3.3.5-rc fixes various bugs in earlier versions of Tor,
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+ including some that could affect reliability or correctness.
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+
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+ This is the first release candidate in the 0.3.3 series. If we find no
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+ new bugs or regression here, then the first stable 0.3.3 release will
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+ be nearly identical to this one.
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+
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+ o Major bugfixes (security, protover, voting):
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+ - Revise Rust implementation of protover to use a more memory-
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+ efficient voting algorithm and corresponding data structures, thus
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+ avoiding a potential memory-based DoS attack where specially
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+ crafted protocol strings would expand to fill available memory.
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+ Fixes bug 24031; bugfix on 0.3.3.1-alpha.
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+
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+ o Major bugfixes (performance, load balancing):
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+ - Directory authorities no longer vote in favor of the Guard flag
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+ for relays without directory support. Starting in Tor
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+ 0.3.0.1-alpha, clients have been avoiding using such relays in the
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+ Guard position, leading to increasingly broken load balancing for
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+ the 5%-or-so of Guards that don't advertise directory support.
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+ Fixes bug 22310; bugfix on 0.3.0.6.
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+
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+ o Minor feature (continuous integration):
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+ - Update the Travis CI configuration to use the stable Rust channel,
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+ now that we have decided to require that. Closes ticket 25714.
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+
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+ o Minor features (config options):
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+ - Change the way the default value for MaxMemInQueues is calculated.
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+ We now use 40% of the hardware RAM if the system has 8 GB RAM or
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+ more. Otherwise we use the former value of 75%. Closes
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+ ticket 24782.
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+
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+ o Minor features (geoip):
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+ - Update geoip and geoip6 to the April 3 2018 Maxmind GeoLite2
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+ Country database. Closes ticket 25718.
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+
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+ o Minor bugfixes (client):
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+ - When using a listed relay as a bridge, and also using
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+ microdescriptors, and considering that relay as a non-bridge in a
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+ circuit, treat its microdescriptor as a valid source of
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+ information about that relay. This change should prevent a non-
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+ fatal assertion error. Fixes bug 25691; bugfix on 0.3.3.4-alpha.
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+
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+ o Minor bugfixes (controller):
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+ - Restore the correct operation of the RESOLVE command, which had
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+ been broken since we added the ability to enable/disable DNS on
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+ specific listener ports. Fixes bug 25617; bugfix on 0.2.9.3-alpha.
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+
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+ o Minor bugfixes (distribution, compilation, rust):
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+ - Build correctly when the rust dependencies submodule is loaded,
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+ but the TOR_RUST_DEPENDENCIES environment variable is not set.
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+ Fixes bug 25679; bugfix on 0.3.3.1-alpha.
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+ - Actually include all of our Rust source in our source
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+ distributions. (Previously, a few of the files were accidentally
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+ omitted.) Fixes bug 25732; bugfix on 0.3.3.2-alpha.
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+
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+ o Minor bugfixes (documentation):
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+ - Document that the PerConnBW{Rate,Burst} options will fall back to
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+ their corresponding consensus parameters only if those parameters
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+ are set. Previously we had claimed that these values would always
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+ be set in the consensus. Fixes bug 25296; bugfix on 0.2.2.7-alpha.
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+ - Revert a misformatting issue in the ExitPolicy documentation.
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+ Fixes bug 25582; bugfix on 0.3.3.1-alpha.
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+
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+ o Minor bugfixes (exit node DNS retries):
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+ - Re-attempt timed-out DNS queries 3 times before failure, since our
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+ timeout is 5 seconds for them, but clients wait 10-15. Also allow
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+ slightly more timeouts per resolver when an exit has multiple
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+ resolvers configured. Fixes bug 21394; bugfix on 0.3.1.9.
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+
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+ o Minor bugfixes (onion services):
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+ - Re-instate counting the client HSDir fetch circuits against the
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+ MaxClientCircuitsPending rate limit. Fixes bug 24989; bugfix
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+ on 0.3.3.1-alpha.
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+ - Remove underscores from the _HSLayer{2,3}Nodes options. This
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+ expert-user configuration can now be enabled as HSLayer{2,3}Nodes.
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+ Fixes bug 25581; bugfix on 0.3.3.1-alpha
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+
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+ o Code simplification and refactoring:
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+ - Move the list of default directory authorities to its own file.
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+ Closes ticket 24854. Patch by "beastr0".
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+
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+ o Documentation (manpage, denial of service):
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+ - Provide more detail about the denial-of-service options, by
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+ listing each mitigation and explaining how they relate. Closes
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+ ticket 25248.
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+
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+
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Changes in version 0.3.3.4-alpha - 2018-03-29
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Tor 0.3.3.4-alpha includes various bugfixes for issues found during
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the alpha testing of earlier releases in its series. We are
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Nick Mathewson