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release: ChangeLog and ReleaseNotes for 0.4.8.2-alpha

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Tor CI Release 2023-07-12 12:30:39 +00:00 committed by David Goulet
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67
ChangeLog
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Changes in version 0.4.8.2-alpha - 2023-07-12
This is our second alpha containing some minor bugfixes and one major bugfix
about L2 vanguard rotation. We believe this will be the last alpha before the
rc in a couple of weeks.
o Major bugfixes (vanguards):
- Rotate to a new L2 vanguard whenever an existing one loses the
Stable or Fast flag. Previously, we would leave these relays in
the L2 vanguard list but never use them, and if all of our
vanguards end up like this we wouldn't have any middle nodes left
to choose from so we would fail to make onion-related circuits.
Fixes bug 40805; bugfix on 0.4.7.1-alpha.
o Minor feature (hs):
- Fix compiler warnings in equix and hashx when building with clang.
Closes ticket 40800.
o Minor features (fallbackdir):
- Regenerate fallback directories generated on July 12, 2023.
o Minor features (geoip data):
- Update the geoip files to match the IPFire Location Database, as
retrieved on 2023/07/12.
o Minor bugfix (congestion control):
- Reduce the accepted range of a circuit's negotiated 'cc_sendme_inc'
to be +/- 1 from the consensus parameter value. Fixes bug 40569;
bugfix on 0.4.7.4-alpha.
- Remove unused congestion control algorithms and BDP calculation
code, now that we have settled on and fully tuned Vegas. Fixes bug
40566; bugfix on 0.4.7.4-alpha.
- Update default congestion control parameters to match consensus.
Fixes bug 40709; bugfix on 0.4.7.4-alpha.
o Minor bugfixes (compilation):
- Fix "initializer is not a constant" compilation error that
manifests itself on gcc versions < 8.1 and MSVC. Fixes bug 40773;
bugfix on 0.4.8.1-alpha
o Minor bugfixes (conflux):
- Count leg launch attempts prior to attempting to launch them. This
avoids inifinite launch attempts due to internal circuit building
failures. Additionally, double-check that we have enough exits in
our consensus overall, before attempting to launch conflux sets.
Fixes bug 40811; bugfix on 0.4.8.1-alpha.
- Fix a case where we were resuming reading on edge connections that
were already marked for close. Fixes bug 40801; bugfix
on 0.4.8.1-alpha.
- Fix stream attachment order when creating conflux circuits, so
that stream attachment happens after finishing the full link
handshake, rather than upon set finalization. Fixes bug 40801;
bugfix on 0.4.8.1-alpha.
- Handle legs being closed or destroyed before computing an RTT
(resulting in warns about too many legs). Fixes bug 40810; bugfix
on 0.4.8.1-alpha.
- Remove a "BUG" warning from conflux_pick_first_leg that can be
triggered by broken or malicious clients. Fixes bug 40801; bugfix
on 0.4.8.1-alpha.
o Minor bugfixes (KIST):
- Prevent KISTSchedRunInterval from having values of 0 or 1, neither
of which work properly. Additionally, make a separate
KISTSchedRunIntervalClient parameter, so that the client and relay
KIST values can be set separately. Set the default of both to 2ms.
Fixes bug 40808; bugfix on 0.3.2.1-alpha.
Changes in version 0.4.8.1-alpha - 2023-06-01
This is the first alpha of the 0.4.8.x series. Two major features in this
version which are Conflux and onion service Proof-of-Work (PoW). There are

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changes/bug40801
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o Minor bugfixes (conflux):
- Fix stream attachment order when creating conflux circuits, so that
stream attachment happens after finishing the full link handshake,
rather than upon set finalization. Fixes bug 40801; bugfix on
0.4.8.1-alpha.
- Remove a "BUG" warning from conflux_pick_first_leg that can be
triggered by broken or malicious clients. Fixes bug 40801; bugfix
on 0.4.8.1-alpha.
- Fix a case where we were resuming reading on edge connections that
were already marked for close. Fixes bug 40801; bugfix on 0.4.8.1-alpha.

7
changes/bug40805
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o Major bugfixes (vanguards):
- Rotate to a new L2 vanguard whenever an existing one loses the
Stable or Fast flag. Previously, we would leave these relays in the
L2 vanguard list but never use them, and if all of our vanguards
end up like this we wouldn't have any middle nodes left to choose
from so we would fail to make onion-related circuits. Fixes bug
40805; bugfix on 0.4.7.1-alpha.

5
changes/bug40808
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o Minor bugfixes (KIST):
- Prevent KISTSchedRunInterval from having values of 0 or 1, neither of
which work properly. Additionally, make a separate KISTSchedRunIntervalClient
parameter, so that the client and relay KIST values can be set separately.
Set the default of both to 2ms. Fixes bug 40808; bugfix on 0.3.2.1-alpha.

4
changes/bug40810
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o Minor bugfixes (conflux):
- Handle legs being closed or destroyed before computing an RTT
(resulting in warns about too many legs). Fixes bug 40810; bugfix on
0.4.8.1-alpha.

6
changes/bug40811
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o Minor bugfixes (conflux):
- Count leg launch attempts prior to attempting to launch them. This
avoids inifinite launch attempts due to internal circuit building
failures. Additionally, double-check that we have enough exits in
our consensus overall, before attempting to launch conflux sets.
Fixes bug 40811; bugfix on 0.4.8.1-alpha.

2
changes/fallbackdirs-2023-07-12
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o Minor features (fallbackdir):
- Regenerate fallback directories generated on July 12, 2023.

3
changes/geoip-2023-07-12
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o Minor features (geoip data):
- Update the geoip files to match the IPFire Location Database,
as retrieved on 2023/07/12.

4
changes/ticket40566
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o Minor bugfix (congestion control):
- Remove unused congestion control algorithms and BDP calculation
code, now that we have settled on and fully tuned Vegas. Fixes
bug 40566; bugfix on 0.4.7.4-alpha.

4
changes/ticket40569
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o Minor bugfix (congestion control):
- Reduce the accepted range of a circuit's negotiated 'cc_sendme_inc'
to be +/- 1 from the consensus parameter value. Fixes bug 40569;
bugfix on 0.4.7.4-alpha.

3
changes/ticket40709
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o Minor bugfix (congestion control):
- Update default congestion control parameters to match consensus.
Fixes bug 40709; bugfix on 0.4.7.4-alpha.

4
changes/ticket40773
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o Minor bugfixes (compilation):
- Fix "initializer is not a constant" compilation error that manifests
itself on gcc versions < 8.1 and MSVC. Fixes bug 40773; bugfix on
0.4.8.1-alpha

3
changes/ticket40800
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o Minor feature (hs):
- Fix compiler warnings in equix and hashx when building with clang.
Closes ticket 40800.