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Condense and edit changelog a little

This commit is contained in:
Nick Mathewson 2016-08-03 10:17:54 -04:00
parent 70fd23f498
commit 8bf169d58b
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ChangeLog
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@ -3,22 +3,12 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
development series.
o New system requirements:
- Tor requires Libevent version 2.0.10-stable or later now.
Implements ticket 19554.
- Tor requires Libevent version 2.0.10-stable or later now. This
implements ticket 19554.
- We now require zlib version 1.2 or later. (Back when we started,
zlib 1.1 and zlib 1.0 were still found in the wild. 1.2 was
released in 2003. We recommend the latest version.)
o Major features (dirauths, security, hidden services):
- Directory authorities can now perform the shared randomness
protocol specified by proposal 250. Using this protocol, directory
authorities can generate a global fresh random number every day.
In the future, this global randomness will be used by hidden
services to select their responsible HSDirs. This release only
implements the directory authority feature; the hidden service
side will be implemented in the future as part of proposal 224 .
Resolves ticket 16943; implements proposal 250.
o Major features (build, hardening):
- Tor now builds with -ftrapv by default on compilers that support
it. This option detects signed integer overflow, and turns it into
@ -31,6 +21,31 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
channels, we are not able to prove that this is safe. Related to
ticket 17983.
o Major features (compilation):
- Our big list of extra GCC warnings is now enabled by default when
building with GCC (or with anything like Clang that claims to be
GCC-compatible). To make all warnings into fatal compilation
errors, pass --enable-fatal-warnings to configure. Closes
ticket 19044.
- Use the Autoconf macro AC_USE_SYSTEM_EXTENSIONS to automatically
turn on C and POSIX extensions. Closes ticket 19139.
o Major features (directory authorities, hidden services):
- Directory authorities can now perform the shared randomness
protocol specified by proposal 250. Using this protocol, directory
authorities can generate a global fresh random number every day.
In the future, this global randomness will be used by hidden
services to select their responsible HSDirs. This release only
implements the directory authority feature; the hidden service
side will be implemented in the future as part of proposal 224.
Resolves ticket 16943; implements proposal 250.
o Major features (downloading):
- Use random exponential backoffs when retrying downloads from the
dir servers. This prevents a group of Tor instances from becoming
too synchronized, or a single Tor instance from becoming too
predictable, in its download schedule. Closes ticket 15942.
o Major bugfixes (exit policies):
- Avoid disclosing exit outbound bind addresses, configured port
bind addresses, and local interface addresses in relay descriptors
@ -40,31 +55,17 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
0.2.7.2-alpha. Patch by teor.
o Major bugfixes (hidden service client):
- With FetchHidServDescriptors set to 0, there is no descriptor
fetch (which is intended) but also no descriptor cache lookup was
done making any Tor client not working with this option unset.
Fixes bug 18704; bugfix on 0.2.0.20-rc. Patch by "twim".
- Allow Tor clients with appropriate controllers to work with
FetchHidServDescriptors set to 0. Previously, this option also
disabled descriptor cache lookup, thus breaking hidden services
entirely when it was set. Fixes bug 18704; bugfix on 0.2.0.20-rc.
Patch by "twim".
o Major bugfixes (user interface):
- Fix an integer overflow in the rate-limiter that caused displaying
of wrong number of suppressed messages (if there are too many of
them). If the number of messages hits the limit of messages per
interval the rate-limiter doesn't count any further. Fixes bug
19435; bugfix on 0.2.4.11-alpha.
o Minor features (backend):
- Tor now uses the operating system's monotonic timers (where
available) for internal fine-grained timing. Previously we would
look at the system clock, and then attempt to compensate for the
clock running backwards. Closes ticket 18908.
o Minor features (build):
o Minor features (build, hardening):
- Detect and work around a libclang_rt problem that prevents clang
from finding __mulodi4() on some 32-bit platforms. This clang bug
would keep -ftrapv from linking on those systems. Closes
ticket 19079.
- Use the Autoconf macro AC_USE_SYSTEM_EXTENSIONS to automatically
turn on C and POSIX extensions. Closes ticket 19139.
- When building on a system without runtime support for some of the
runtime hardening options, try to log a useful warning at
configuration time, rather than an incomprehensible warning at
@ -76,29 +77,15 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
given is no smaller than the minimum value. Closes ticket 19063;
patch from U+039b.
o Minor features (compilation):
- Our big list of extra GCC warnings is now enabled by default when
building with GCC (or with anything like Clang that claims to be
GCC-compatible). To make all warnings into fatal compilation
errors, pass --enable-fatal-warnings to configure. Closes
ticket 19044.
o Minor features (control port):
o Minor features (controller):
- Implement new GETINFO queries for all downloads using
download_status_t to schedule retries. Closes ticket 19323.
o Minor features (controller):
- Add support for configuring basic client authorization on hidden
services created with the ADD_ONION control command. Implements
ticket 15588. Patch by "special".
- Fire a `STATUS_SERVER` event whenever the hibernation status
changes between "awake"/"soft"/"hard". Closes ticket 18685.
o Minor features (debugging):
- When dumping unparseable router descriptors, optionally store them
in separate filenames by hash, up to a configurable limit. Closes
ticket 18322.
o Minor features (directory authority):
- Directory authorities now only give the Guard flag to a relay if
they are also giving it the Stable flag. This change allows us to
@ -107,11 +94,7 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
flag. Implements ticket 18624.
- Make directory authorities write the v3-status-votes file out to
disk earlier in the consensus process, so we have the votes even
if we abort the consensus process below. Resolves ticket 19036.
o Minor features (downloading):
- Use random exponential backoffs when retrying downloads from the
dir servers. Closes ticket 15942.
if we abort the consensus process later. Resolves ticket 19036.
o Minor features (hidden service):
- Stop being so strict about the payload length of "rendezvous1"
@ -119,7 +102,11 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
now we can handle better handshakes like "ntor". Resolves
ticket 18998.
o Minor features (infrastructure):
o Minor features (infrastructure, time):
- Tor now uses the operating system's monotonic timers (where
available) for internal fine-grained timing. Previously we would
look at the system clock, and then attempt to compensate for the
clock running backwards. Closes ticket 18908.
- Tor now includes an improved timer backend, so that we can
efficiently support tens or hundreds of thousands of concurrent
timers, as will be needed for some of our planned anti-traffic-
@ -130,6 +117,12 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
o Minor features (logging):
- Provide a more useful warning message when configured with an
invalid Nickname. Closes ticket 18300; patch from "icanhasaccount".
- When dumping unparseable router descriptors, optionally store them
in separate filenames by hash, up to a configurable limit. Closes
ticket 18322.
- Add a set of macros to check nonfatal assertions, for internal
use. Migrating more of our checks to these should help us avoid
needless crash bugs. Closes ticket 18613.
o Minor features (performance):
- When fetching a consensus for the first time, use optimistic data.
@ -142,11 +135,6 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
learn why we don't like what their relay was doing. Resolves
ticket 18760.
o Minor features (safety, debugging):
- Add a set of macros to check nonfatal assertions, for internal
use. Migrating more of our checks to these should help us avoid
needless crash bugs. Closes ticket 18613.
o Minor features (testing):
- Let backtrace tests work correctly under AddressSanitizer. Fixes
part of bug 18934; bugfix on 0.2.5.2-alpha.
@ -165,9 +153,9 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
o Minor bugfixes (build):
- Make the test-stem and test-network targets depend only on the tor
binary to be tested. Previously, they depended on "make all".
Fixes bug 18240; bugfix on 0.2.8.2-alpha. Based on a patch
from "cypherpunks".
binary that they will be testing. Previously, they depended on
"make all". Fixes bug 18240; bugfix on 0.2.8.2-alpha. Based on a
patch from "cypherpunks".
o Minor bugfixes (circuits):
- Make sure extend_info_from_router is only called on servers. Fixes
@ -197,15 +185,13 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
o Minor bugfixes (ephemeral hidden service):
- When deleting an ephemeral hidden service, close its intro points
even if not in the open state. Fixes bug 18604; bugfix
even if they are not in the open state. Fixes bug 18604; bugfix
on 0.2.7.1-alpha.
o Minor bugfixes (guard selection):
- Use a single entry guard even if the NumEntryGuards consensus
parameter is not provided. Fixes bug 17688; bugfix
on 0.2.5.6-alpha.
o Minor bugfixes (guards):
- Don't mark guards as unreachable if connection_connect() fails.
That function fails for local reasons, so it shouldn't reveal
anything about the status of the guard. Fixes bug 14334; bugfix
@ -225,11 +211,9 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
truncated ed25519 key file. Fixes bug 18956; bugfix
on 0.2.6.1-alpha.
o Minor bugfixes (test networks):
o Minor bugfixes (testing):
- Allow clients to retry HSDirs much faster in test networks. Fixes
bug 19702; bugfix on 0.2.7.1-alpha. Patch by teor.
o Minor bugfixes (testing):
- Disable ASAN's detection of segmentation faults while running
test_bt.sh, so that we can make sure that our own backtrace
generation code works. Fixes another aspect of bug 18934; bugfix
@ -241,14 +225,17 @@ Changes in version 0.2.9.1-alpha - 2016-08-??
o Minor bugfixes (time):
- Improve overflow checks in tv_udiff and tv_mdiff. Fixes bug 19483;
bugfix on all released tor versions.
o Minor bugfixes (timing):
- When computing the difference between two times in milliseconds,
we now round to the nearest millisecond correctly. Previously, we
could sometimes round in the wrong direction. Fixes bug 19428;
bugfix on 0.2.2.2-alpha.
o Minor bugfixes (user interface):
- Display a more accurate number of suppressed messages in the log
rate-limiter. Previously, there was a potential integer overflow
in the counter. Now, if the number of messages hits a maximum, the
rate-limiter doesn't count any further. Fixes bug 19435; bugfix
on 0.2.4.11-alpha.
- Fix a typo in the getting passphrase prompt for the ed25519
identity key. Fixes bug 19503; bugfix on 0.2.7.2-alpha.