light movement and editing on changelog

ChangeLog

@@ -5,7 +5,9 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
   certain denial-of-service attacks more difficult, and improves
   performance in several areas.
 
-  o Major features (Circuit padding):
+  o Code simplification and refactoring (circuit padding):
+
+  o Major features (circuit padding):
     - Onion service clients will now add padding cells to the initial
       portions of their INTRODUCE and RENDEZVOUS circuits, to make those
       circuits' traffic patterns look more like general purpose Exit
@@ -42,15 +44,19 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       time. Previously, the algorithm was quadratic, which could slow
       down heavily used onion services. Closes ticket 30307.
 
-  o Minor feature (circuit padding):
-    - We now use a fast RNG when scheduling circuit padding. Part of
-      ticket 28636.
-
-  o Minor feature (maintenance scripts):
-    - Add to scripts/maint/ helper maintainer scripts used for git
-      maintenance. Closes ticket 29391.
+  o Major features (performance, RNG):
+    - Tor now constructs a fast secure pseudorandom number generator for
+      each thread, to use when performance is critical. This PRNG is
+      based on AES-CTR, using a buffering construction similar to
+      libottery and the (newer) OpenBSD arc4random() code. It
+      outperforms OpenSSL 1.1.1a's CSPRNG by roughly a factor of 100 for
+      small outputs. Although we believe it to be cryptographically
+      strong, we are only using it when necessary for reasonable
+      performance. Implements tickets 29023 and 29536.
 
   o Minor features (circuit padding):
+    - We now use a fast RNG when scheduling circuit padding. Part of
+      ticket 28636.
     - Allow the padding machine designer to pick the edges of their
       histogram instead of trying to compute them automatically using an
       exponential formula. Resolves some undefined behavior in the case
@@ -90,39 +96,24 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       load-balancing and statistical sampling decisions. Now we use our
       fast RNG in those cases. Closes ticket 29542.
 
-  o Minor features (developer tooling):
+  o Minor features (developer tools):
+    - Tor's test scripts now check for files and functions that seem too
+      long and complicated. Existing overlong functions and files are
+      accepted for now, but should eventually be refactored. Closes
+      ticket 29221.
+    - Add to scripts/maint/ helper maintainer scripts used for git
+      maintenance. Closes ticket 29391.
     - Call practracker from pre-push and pre-commit git hooks to let a
       developer know if they made any code style violations in their
       last commit. This should help preventing code style violations
       appearing upstream. Closes ticket 30051.
-    - Call pre-commit git hook from pre-push hook to make sure we're
-      running documentation and code style checks before pushing to
-      remote git repository. Implements feature 30033.
-    - Modify git pre-push hook script to disallow pushing branches other
-      than master, release-* and maint-* to origin remote. Implements
-      feature 29532.
-
-  o Minor features (developer tools):
     - Add a script to check that each header has a well-formed and
       unique guard marco. Closes ticket 29756.
-    - Introduce a post-merge git hook script to check if we're pulling
-      in any changes to our git workspace management scripts from
-      upstream. Resolves issue 29588.
-
-  o Minor features (development tools):
-    - Tor's test scripts now check for files and functions that seem too
-      long and complicated. Existing overlong functions and files are
-      accepted for now, but should eventually be refactored. Closes
-      ticket 29221.
 
   o Minor features (geoip):
     - Update geoip and geoip6 to the May 13 2019 Maxmind GeoLite2
       Country database. Closes ticket 30522.
 
-  o Minor features (git scripts):
-    - In git-pull-all.sh, also fetch the latest tor-github pull
-      requests. Implements ticket 30114.
-
   o Minor features (HTTP tunnel):
     - Return an informative web page when the HTTPTunnelPort is used as
       an HTTP proxy. Closes ticket 27821, patch by "eighthave".
@@ -141,16 +132,6 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       1.1.1 and later), since they tend to be faster than tiny-keccak.
       Closes ticket 28837.
 
-  o Minor features (performance, RNG):
-    - Tor now constructs a fast secure pseudorandom number generator for
-      each thread, to use for cases where performance is critical. This
-      PRNG is based on AES-CTR, using a buffering construction similar
-      to libottery and the (newer) OpenBSD arc4random() code. It
-      outperforms OpenSSL 1.1.1a's CSPRNG by roughly a factor of 100 for
-      small outputs. Although we believe it to be cryptographically
-      strong, we are only using it when necessary for reasonable
-      performance. Implements tickets 29023 and 29536.
-
   o Minor features (testing):
     - Tor's unit test code now contains a standard set of functions to
       replace the PRNG with a deterministic or reproducible version for
@@ -159,6 +140,8 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
     - We now have a script, cov-test-determinism.sh, to identify places
       where our unit test coverage has become nondeterministic. Closes
       ticket 29436.
+    - Check that representative subsets of values of `int` and `unsigned
+      int` can be represented by `void *`. Resolves issue 29537.
 
   o Minor bugfixes (bridge authority):
     - We set bridges as running when we dump the bridge status to a
@@ -166,7 +149,7 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       controller, but these shouldn't modify vital data structures.
       Fixes bug 24490; bugfix on 0.2.0.13-alpha. Patch by Neel Chauhan
 
-  o Minor bugfixes (Channel padding statistics):
+  o Minor bugfixes (channel padding statistics):
     - Channel padding write totals and padding-enabled totals are now
       counted properly in relay extrainfo descriptors. Fixes bug 29231;
       bugfix on 0.3.1.1-alpha
@@ -183,13 +166,11 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       bugfix on 0.4.0.1-alpha.
     - The circuit padding subsystem does not schedule padding if dormant
       mode is enabled. Fixes bug 28636; bugfix on 0.4.0.1-alpha.
-
-  o Minor bugfixes (circuitpadding):
     - Inspect circuit-level cell queue before sending padding, to avoid
       sending padding while too much data is queued. Fixes bug 29204;
       bugfix on 0.4.0.1-alpha.
 
-  o Minor bugfixes (compilation, unusual configuration):
+  o Minor bugfixes (compilation, unusual configurations):
     - Avoid failures when building with ALL_BUGS_ARE_FAILED due to
       missing declarations of abort(), and prevent other such failures
       in the future. Fixes bug 30189; bugfix on 0.3.4.1-alpha.
@@ -200,16 +181,10 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       couldn't distinguish an argument list from the first line of a
       multiline object. Fixes bug 29984; bugfix on 0.2.3.8-alpha.
 
-  o Minor bugfixes (developer tools):
-    - Update our pre-commit.git-hook script to work correctly on older
-      Tor branches and release branches without any changes files, and
-      to actually exit when something fails. Fixes bug 29553; bugfix
-      on 0.4.0.2-alpha.
-
-  o Minor bugfixes (dirauth, ipv6):
-    - If we are a durauth with IPv6 and are marking relays as running,
-      mark ourselves as reachable on IPv6. Fixes bug 24338; bugfix on
-      0.4.0.2-alpha. Patch by Neel Chauhan
+  o Minor bugfixes (directory authority, ipv6):
+    - If we are a directory authity with IPv6 and are marking relays as
+      running, mark ourselves as reachable on IPv6. Fixes bug 24338;
+      bugfix on 0.4.0.2-alpha. Patch by Neel Chauhan
 
   o Minor bugfixes (documentation):
     - Improve the documentation for MapAddress .exit. Fixes bug 30109;
@@ -218,18 +193,12 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       Explain what "monotonic" actually means, and document some results
       that have surprised people. Fixes bug 29640; bugfix
       on 0.2.9.1-alpha.
-
-  o Minor bugfixes (documentation, manpage):
     - Use proper formatting when providing an example on quoting options
       that contain whitespace. Fixes bug 29635; bugfix on 0.2.3.18-rc.
 
-  o Minor bugfixes (lib):
-
   o Minor bugfixes (logging):
     - Do not log a warning for OpenSSL versions that should be
       compatible. Fixes bug 30190; bugfix on 0.2.4.2-alpha
-
-  o Minor bugfixes (logging, configuration):
     - Warn operators when MyFamily option is set but ContactInfo is
       missing, as the latter should be set too. Fixes bug 25110; bugfix
       on 0.3.3.1-alpha.
@@ -255,6 +224,10 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       we only set this flag when we received a INTRODUCE2 cell in
       rend_service_receive_introduction(). Fixes bug 17357; bugfix on
       0.4.0.2-alpha. Patch by Neel Chauhan
+    - Stop ignoring IPv6 link specifiers sent to v3 onion services. v3
+      onion service IPv6 support is still incomplete, see 23493 for
+      details. Fixes bug 23588; bugfix on 0.3.2.1-alpha. Patch by
+      Neel Chauhan.
 
   o Minor bugfixes (onion services, performance):
     - If we are building circuits to onion services, in
@@ -301,18 +274,8 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
     - Call setrlimit() to disable core dumps in test_bt_cl.c instead of
       using `ulimit -c` in test_bt.sh, which violates POSIX shell
       compatibility. Fixes bug 29061; bugfix on 0.3.5.1-alpha.
-
-  o Minor bugfixes (testing, v3 onion services):
     - Fix some incorrect code in the v3 onion service unit tests. Fixes
       bug 29243; bugfix on 0.3.2.1-alpha.
-
-  o Minor bugfixes (tor-resolve):
-    - Fix a memory leak in tor-resolve that could happen if Tor gave it
-      a malformed SOCKS response. (Memory leaks in tor-resolve don't
-      actually matter, but it's good to fix them anyway.) Fixes bug
-      30151; bugfix on 0.4.0.1-alpha.
-
-  o Minor bugfixes (unit tests):
     - In the "routerkeys/*" tests, check the return values of mkdir()
       for possible failures. Fixes bug 29939; bugfix on 0.2.7.2-alpha.
       Found by Coverity as CID 1444254.
@@ -321,11 +284,11 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
       deallocation on assert failure and fixes Coverity warnings CID
       1444117 and CID 1444118. Fixes bug 29823; bugfix on 0.2.9.1-alpha.
 
-  o Minor bugfixes (v3 onion services):
-    - Stop ignoring IPv6 link specifiers sent to v3 onion services. v3
-      onion service IPv6 support is still incomplete, see 23493 for
-      details. Fixes bug 23588; bugfix on 0.3.2.1-alpha. Patch by
-      Neel Chauhan.
+  o Minor bugfixes (tor-resolve):
+    - Fix a memory leak in tor-resolve that could happen if Tor gave it
+      a malformed SOCKS response. (Memory leaks in tor-resolve don't
+      actually matter, but it's good to fix them anyway.) Fixes bug
+      30151; bugfix on 0.4.0.1-alpha.
 
   o Code simplification and refactoring:
     - Abstract out the low-level formatting of replies on the control
@@ -380,12 +343,6 @@ Changes in version 0.4.1.1-alpha - 2019-05-??
     - Remove obsolete OpenSUSE initscript. Resolves issue 30076.
     - Remove the obsolete script at contrib/dist/tor.sh.in. Resolves
       issue 30075.
-
-  o Testing:
-    - Check that representative subsets of values of `int` and `unsigned
-      int` can be represented by `void *`. Resolves issue 29537.
-
-  o Code simplification and refactoring (circuit padding):
     - Avoid calling monotime_absolute_usec() in circuit padding machines
       that do not use token removal or circuit RTT estimation. Fixes bug
       29085; bugfix on 0.4.0.1-alpha.