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[tor-commits] [tor/master] Start a changelog for 0.4.6.1-alpha



commit 05564a852110c0c908b03acba57d3b7b8dc222b4
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue Mar 9 11:58:46 2021 -0500

    Start a changelog for 0.4.6.1-alpha
---
 ChangeLog                 | 158 ++++++++++++++++++++++++++++++++++++++++++++++
 changes/argument_parse    |   5 --
 changes/bug19011          |   7 --
 changes/bug23126          |   4 --
 changes/bug33607          |   5 --
 changes/bug34088          |   4 --
 changes/bug40168          |  16 -----
 changes/bug40189          |   4 --
 changes/bug40207          |   4 --
 changes/bug40235          |   5 --
 changes/bug40236          |   4 --
 changes/changes40308      |   5 --
 changes/hs_build_addr     |   3 -
 changes/ticket17927       |   4 --
 changes/ticket30477       |   4 --
 changes/ticket32102       |   3 -
 changes/ticket33383       |   4 --
 changes/ticket33632       |   5 --
 changes/ticket40017_redux |   3 -
 changes/ticket40084       |   4 --
 changes/ticket40227       |   4 --
 changes/ticket40232       |   4 --
 changes/ticket40249       |   3 -
 changes/ticket40253       |   3 -
 changes/ticket40255       |   5 --
 changes/ticket40261       |   4 --
 changes/ticket40274       |   4 --
 changes/ticket40282       |   6 --
 changes/ticket40301       |   4 --
 29 files changed, 158 insertions(+), 130 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ca10337e11..965f2001d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,161 @@
+Changes in version 0.4.6.1-alpha - 2021-03-??
+  Tor 0.4.6.1-alpha is the first alpha release in the 0.4.6.x series. It
+  improves client circuit performance, adds missing features, and
+  improves some of our DoS handling and statistics reporting. It also
+  includes numerous smaller bugfixes.
+
+  o Major features (control port, onion services):
+    - Add controller support for creating version 3 onion services with
+      client authorization. Previously, only v2 onion services could be
+      created with client authorization. Closes ticket 40084. Patch by
+      Neel Chauhan.
+
+  o Major features (directory authorityl):
+    - When voting for a relay with a Sybil-like appearance, add the
+      Sybil flag when clearing out the other flags. This lets a relay
+      operator know why their relay hasn't been voted on. Closes ticket
+      40255. Patch by Neel Chauhan.
+
+  o Major features (relay, denial of service):
+    - Add a new DoS subsystem feature to control the rate of client
+      connections for relays. Closes ticket 40253.
+
+  o Major features (statistics):
+    - Relays now also publish statistics about the number of v3 onion
+      services and volume of v3 onion service traffic, in the same
+      manner they already do for v2 onions. Closes ticket 23126.
+
+  o Major bugfixes (circuit build timeout):
+    - Improve the accuracy of our circuit build timeout calculation for
+      60%, 70%, and 80% build rates for various guard choices. We now
+      use a maximum likelihood estimator for Pareto parameters of the
+      circuit build time distribution, instead of a "right-censored
+      estimator". This causes clients to ignore circuits that never
+      finish building in their timeout calculations. Previously, clients
+      were counting such unfinished circuits as having the highest
+      possible build time value, when in reality these circuits most
+      likely just contain relays that are offline. We also now wait a
+      bit longer to let circuits complete for measurement purposes,
+      lower the minimum possible effective timeout from 1.5 seconds to
+      10ms, and increase the resolution of the circuit build time
+      histogram from 50ms bin widths to 10ms bin widths. Additionally,
+      we alter our estimate Xm by taking the maximum of the top 10 most
+      common build time values of the 10ms histogram, and compute Xm as
+      the average of these. Fixes bug 40168; bugfix on 0.2.2.14-alpha.
+    - Remove max_time calculation and associated warn from circuit build
+      timeout 'alpha' parameter estimation, as this is no longer needed
+      by our new estimator from 40168. Fixes bug 34088; bugfix
+      on 0.2.2.9-alpha.
+
+  o Major bugfixes (signing key):
+    - In the tor-gencert utility, give an informative error message if
+      the passphrase given in `--create-identity-key` is too short.
+      Fixes bug 40189; bugfix on 0.2.0.1-alpha. Patch by Neel Chauhan.
+
+  o Minor features (bridge):
+    - We now announce the URL to Tor's new bridge status at
+      https://bridges.torproject.org/ when Tor is configured to run as a
+      bridge relay. Closes ticket 30477.
+
+  o Minor features (build system):
+    - New "make lsp" command to auto generate the compile_commands.json
+      file used by the ccls server. The "bear" program is needed for
+      this. Closes ticket 40227.
+
+  o Minor features (command-line interface):
+    - Add build informations to `tor --version` in order to ease
+      reproducible builds. Closes ticket 32102.
+    - When parsing command-line flags that take an optional argument,
+      treat the argument as absent if it would start with a '-'
+      character. Arguments in that form are not intelligible for any of
+      our optional-argument flags. Closes ticket 40223.
+    - Allow a relay operator to list the ed25519 keys on the command
+      line by adding the `rsa` and `ed25519` arguments to the
+      --list-fingerprint flag to show the respective RSA and ed25519
+      relay fingerprint. Closes ticket 33632. Patch by Neel Chauhan.
+
+  o Minor features (control port, stream handling):
+    - Add the stream ID argument to the event line in the ADDRMAP
+      control event. Closes ticket 40249. Patch by Neel Chauhan.
+
+  o Minor features (logging):
+    - Change the DoS subsystem heartbeat line format so be more clear on
+      what has been detected/rejected and which option is disabled if
+      any. Closes ticket 40308.
+    - In src/core/mainloop/mainloop.c and src/core/mainloop/connection.c,
+      put brackets around IPv6 addresses in log messages. Closes ticket
+      40232. Patch by Neel Chauhan.
+
+  o Minor features (performance, windows):
+    - Use SRWLocks to implement locking on Windows. Replaces the
+      critical section locking implementation with the faster SRWLocks
+      available since Windows Vista. Closes ticket 17927. Patch by
+      Daniel Pinto.
+
+  o Minor features (protocol, proxy support, defense in depth):
+    - Close HAProxy connections if they somehow manage to send us data
+      before we start reading. Closes another case of ticket 40017.
+
+  o Minor features (tests, portability):
+    - Port the hs_build_address.py test script to work with recent
+      versions of python. Closes ticket 40213. Patch from
+      Samanta Navarro.
+
+  o Minor bugfixes (build):
+    - Mini-report in the configure script now shows whether or not lzma
+      and zstd have been used, not just if enable flag passed in. Fixes
+      bug 40236; bugfix on 0.4.3.1-alpha.
+
+  o Minor bugfixes (compatibility):
+    - Fix a failure in the test cases when running on the hppa
+      architecture, along with a related test that might fail on other
+      architectures in the future. Fixes bug 40274; bugfix
+      on 0.2.5.1-alpha.
+
+  o Minor bugfixes (directory authorities, voting):
+    - Add a new consensus method (31) to support any future changes that
+      authorities decide to make to the value of bwweightscale or
+      maxunmeasuredbw. Previously, there was a bug that prevented the
+      authorities from parsing these consensus parameters correctly under
+      most circumstances. Fixes bug 19011; bugfix on 0.2.2.10-alpha.
+
+  o Minor bugfixes (ipv6):
+    - Allow non-SOCKSPorts to disable IPv4, IPv6, and Prefer IPv4. Some
+      rare configs might break, but in this case you can disable
+      NoIPv4Traffic and NoIPv6Traffic as needed. Fixes bug 33607; bugfix
+      on 0.4.1.1-alpha. Patch by Neel Chauhan.
+
+  o Minor bugfixes (key generation):
+    - Do not require a valid torrc when using the `--keygen` argument to
+      generate a signing key. This allows us to generate keys on systems
+      or users which may not run Tor. Fixes bug 40235; bugfix on
+      0.2.7.2-alpha. Patch by Neel Chauhan.
+
+  o Minor bugfixes (onion services, logging):
+    - Downgrade the severity of a few rendezvous circuit-related
+      warnings from warning to info. Fixes bug 40207; bugfix on
+      0.3.2.1-alpha. Patch by Neel Chauhan.
+
+  o Minor bugfixes (relay):
+    - Reduce the compression level for data streaming from HIGH to LOW.
+      Fixes bug 40301; bugfix on 0.3.5.1-alpha.
+
+  o Code simplification and refactoring:
+    - Remove the orconn_ext_or_id_map structure and related functions.
+      Nothing outside of unit tests looks up anything in this structure.
+      Closes ticket 33383. Patch by Neel Chauhan.
+
+  o Code simplification and refactoring (metrics, DoS):
+    - Move the DoS subsystem into the subsys manager including its
+      configuration options. Closes ticket 40261.
+
+  o Removed features (relay):
+    - Because DirPorts are only used on authorities, relays no longer
+      advertise them. Similarly, self-testing for DirPorts has been
+      disabled, since an unreachable DirPort is no reason for a relay
+      not to advertise itself. (Configuring a DirPort will still work,
+      for now.) Closes ticket 40282.
+
 
 Changes in version 0.4.5.6 - 2021-02-15
   The Tor 0.4.5.x release series is dedicated to the memory of Karsten
diff --git a/changes/argument_parse b/changes/argument_parse
deleted file mode 100644
index ed8e66bba3..0000000000
--- a/changes/argument_parse
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (command-line interface):
-    - When parsing command-line flags that take an optional argument,
-      treat the argument as absent if it would start with a '-' character.
-      Arguments in that form are not intelligible for any of our
-      optional-argument flags.  Closes ticket 40223.
diff --git a/changes/bug19011 b/changes/bug19011
deleted file mode 100644
index de178fd438..0000000000
--- a/changes/bug19011
+++ /dev/null
@@ -1,7 +0,0 @@
-  o Minor bugfixes (directory authorities, voting):
-    - Add a new consensus method (31) to support any future changes that
-      authorities decide to make to the value of bwweightscale or
-      maxunmeasuredbw. Previously, there was a bug that prevented the
-      authorities from parsing these consensus parameters correctly under
-      most circumstances.
-      Fixes bug 19011; bugfix on 0.2.2.10-alpha.
diff --git a/changes/bug23126 b/changes/bug23126
deleted file mode 100644
index 76ba393205..0000000000
--- a/changes/bug23126
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Major features (statistics):
-    - Relays will now also publish statistics about the number of v3 onion
-      services and volume of v3 onion service traffic, in the same manner they
-      already do for v2 onions.  Closes ticket 23126.
\ No newline at end of file
diff --git a/changes/bug33607 b/changes/bug33607
deleted file mode 100644
index c18d37b0d3..0000000000
--- a/changes/bug33607
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (ipv6):
-    - Allow non-SOCKSPorts to disable IPv4, IPv6, and Prefer IPv4. Some rare
-      configs might break, but in this case you can disable NoIPv4Traffic and
-      NoIPv6Traffic as needed. Fixes bug 33607; bugfix on 0.4.1.1-alpha. Patch
-      by Neel Chauhan.
diff --git a/changes/bug34088 b/changes/bug34088
deleted file mode 100644
index 172d890898..0000000000
--- a/changes/bug34088
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (circuit build timeout):
-    - Remove max_time calculation and associated warn from circuit build
-      timeout 'alpha' parameter estimation, as this is no longer needed
-      by our new estimator from 40168. Fixes bug 34088; bugfix on 0.2.2.9-alpha.
diff --git a/changes/bug40168 b/changes/bug40168
deleted file mode 100644
index c52a0352c2..0000000000
--- a/changes/bug40168
+++ /dev/null
@@ -1,16 +0,0 @@
-  o Minor bugfixes (circuit build timeout):
-    - Improve the accuracy of our circuit build timeout calculation for 60%,
-      70%, and 80% build rates for various guard choices. We now use a maximum
-      likelihood estimator for Pareto parameters of the circuit build time
-      distribution, instead of a "right-censored estimator". This causes
-      clients to ignore circuits that never finish building in their timeout
-      calculations. Previously, clients were counting such unfinished circuits
-      as having the highest possible build time value, when in reality these
-      circuits most likely just contain relays that are offline. We also now
-      wait a bit longer to let circuits complete for measurement purposes,
-      lower the minimum possible effective timeout from 1.5 seconds to 10ms,
-      and increase the resolution of the circuit build time histogram from
-      50ms bin widths to 10ms bin widths. Additionally, we alter our estimate
-      Xm by taking the maximum of the top 10 most common build time values
-      of the 10ms histogram, and compute Xm as the average of these.
-      Fixes bug 40168; bugfix on 0.2.2.14-alpha.
diff --git a/changes/bug40189 b/changes/bug40189
deleted file mode 100644
index 0c3c8ae2f3..0000000000
--- a/changes/bug40189
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Major bugfixes (signing key):
-    - In the tor-gencert utility, give an informative error message if the
-      passphrase given in `--create-identity-key` is too short. Fixes bug
-      40189; bugfix on 0.2.0.1-alpha. Patch by Neel Chauhan.
diff --git a/changes/bug40207 b/changes/bug40207
deleted file mode 100644
index ca633f88db..0000000000
--- a/changes/bug40207
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (onion services, logging):
-    - Downgrade the severity of a few rendezvous circuit-related
-      warnings from warning to info. Fixes bug 40207; bugfix on
-      0.3.2.1-alpha. Patch by Neel Chauhan.
diff --git a/changes/bug40235 b/changes/bug40235
deleted file mode 100644
index baf72c3da7..0000000000
--- a/changes/bug40235
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor bugfixes (key generation):
-    - Do not require a valid torrc when using the `--keygen` argument
-      to generate a signing key. This allows us to generate keys on
-      systems or users which may not run Tor. Fixes bug 40235; bugfix
-      on 0.2.7.2-alpha. Patch by Neel Chauhan.
diff --git a/changes/bug40236 b/changes/bug40236
deleted file mode 100644
index 0dceeda7a2..0000000000
--- a/changes/bug40236
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (build):
-    - Mini-report in the configure script now shows whether or not lzma and zstd
-      have been used, not just if enable flag passed in. Fixes bug 40236; bugfix
-      on 0.4.3.1-alpha.
diff --git a/changes/changes40308 b/changes/changes40308
deleted file mode 100644
index d2b91f9299..0000000000
--- a/changes/changes40308
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor feature (DoS log heartbeat):
-    - Change the DoS subsystem heartbeat line format so be more clear on what
-      has been detected/rejected and which option is disabled if any. Closes
-      ticket 40308.
-
diff --git a/changes/hs_build_addr b/changes/hs_build_addr
deleted file mode 100644
index 29aa268d73..0000000000
--- a/changes/hs_build_addr
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (tests, portability):
-    - Port the hs_build_address.py test script to work with recent versions
-      of python.  Closes ticket 40213. Patch from Samanta Navarro.
diff --git a/changes/ticket17927 b/changes/ticket17927
deleted file mode 100644
index 532416dac4..0000000000
--- a/changes/ticket17927
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (performance, windows):
-    - Use SRWLocks to implement locking on Windows. Replaces the critical
-      section locking implementation with the faster SRWLocks available
-      since Windows Vista. Closes ticket 17927. Patch by Daniel Pinto.
diff --git a/changes/ticket30477 b/changes/ticket30477
deleted file mode 100644
index 379fc4e7eb..0000000000
--- a/changes/ticket30477
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (bridge):
-    - We now announce the URL to Tor's new bridge status at
-      https://bridges.torproject.org/ when Tor is configured to run as a bridge
-      relay. Closes ticket 30477.
diff --git a/changes/ticket32102 b/changes/ticket32102
deleted file mode 100644
index 5aa2ed24fb..0000000000
--- a/changes/ticket32102
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (build information):
-    - Add build informations to `tor --version` in order to ease reproducible
-      builds. Closes ticket 32102.
diff --git a/changes/ticket33383 b/changes/ticket33383
deleted file mode 100644
index 8a1b83cdab..0000000000
--- a/changes/ticket33383
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Code simplification and refactoring:
-    - Remove the orconn_ext_or_id_map structure and related functions. Nothing
-      outside of unit tests looks up anything in this structure. Closes ticket
-      33383. Patch by Neel Chauhan.
diff --git a/changes/ticket33632 b/changes/ticket33632
deleted file mode 100644
index 9d813feaf2..0000000000
--- a/changes/ticket33632
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Minor features (relay fingerprint, command line):
-    - Allow a relay operator to list the ed25519 keys on the command line
-      by adding the `rsa` and `ed25519` arguments to the --list-fingerprint
-      flag to show the respective RSA and ed25519 relay fingerprint. Closes
-      ticket 33632. Patch by Neel Chauhan.
diff --git a/changes/ticket40017_redux b/changes/ticket40017_redux
deleted file mode 100644
index b190e7080e..0000000000
--- a/changes/ticket40017_redux
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (protocol, proxy support, defense in depth):
-    - Close HAProxy connections if they somehow manage to send us data before
-      we start reading.  Closes another case of ticket 40017.
\ No newline at end of file
diff --git a/changes/ticket40084 b/changes/ticket40084
deleted file mode 100644
index 072af813f1..0000000000
--- a/changes/ticket40084
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Major features (control port, onion services):
-    - Add support for creating version 3 onion services with authorization
-      from the control port. Previously, we could only create version 2
-      services here. Closes ticket 40084. Patch by Neel Chauhan.
diff --git a/changes/ticket40227 b/changes/ticket40227
deleted file mode 100644
index e5efad0f95..0000000000
--- a/changes/ticket40227
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor feature (build system):
-    - New "make lsp" command to auto generate the compile_commands.json file
-      used by the ccls server. The "bear" program is needed for this. Closes
-      ticket 40227.
diff --git a/changes/ticket40232 b/changes/ticket40232
deleted file mode 100644
index ecd25fb3e9..0000000000
--- a/changes/ticket40232
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor features (logging, IPv6):
-    - In src/core/mainloop/mainloop.c and src/core/mainloop/connection.c,
-      put brackets around IPv6 addresses in log messages. Closes ticket
-      40232. Patch by Neel Chauhan.
diff --git a/changes/ticket40249 b/changes/ticket40249
deleted file mode 100644
index f9a1528a26..0000000000
--- a/changes/ticket40249
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Minor features (control port, stream handling):
-    - Add the stream ID argument to the event line in the ADDRMAP control
-      event. Closes ticket 40249. Patch by Neel Chauhan.
diff --git a/changes/ticket40253 b/changes/ticket40253
deleted file mode 100644
index ca7c207bb3..0000000000
--- a/changes/ticket40253
+++ /dev/null
@@ -1,3 +0,0 @@
-  o Major feature (relay, denial of service):
-    - Add a new DoS subsystem feature to control the rate of client connections
-      for relays. Closes ticket 40253.
diff --git a/changes/ticket40255 b/changes/ticket40255
deleted file mode 100644
index 026c64f697..0000000000
--- a/changes/ticket40255
+++ /dev/null
@@ -1,5 +0,0 @@
-  o Major features (directory authority, sybil):
-    - When voting for a relay with a Sybil-like appearance, add the Sybil
-      flag when clearing out the other flags. This lets a relay operator
-      know why their relay hasn't been voted on. Closes ticket 40255.
-      Patch by Neel Chauhan.
diff --git a/changes/ticket40261 b/changes/ticket40261
deleted file mode 100644
index f8d05a25be..0000000000
--- a/changes/ticket40261
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Code simplification and refactoring (metrics, DoS):
-    - Move the DoS subsystem into the subsys manager including its configuration
-      options. Closes ticket 40261.
-
diff --git a/changes/ticket40274 b/changes/ticket40274
deleted file mode 100644
index 6bcc89e19c..0000000000
--- a/changes/ticket40274
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (compatibility):
-    - Fix a failure in the test cases when running on the hppa architecture,
-      along with a related test that might fail on other architectures in the
-      future. Fixes bug 40274; bugfix on 0.2.5.1-alpha.
diff --git a/changes/ticket40282 b/changes/ticket40282
deleted file mode 100644
index 2c69a77163..0000000000
--- a/changes/ticket40282
+++ /dev/null
@@ -1,6 +0,0 @@
-  o Removed features (relay):
-    - Because DirPorts are only used on authorities, relays no longer
-      advertise them. Similarly, self-testing for DirPorts has been disabled,
-      since an unreachable DirPort is no reason for a relay not to advertise
-      itself. (Configuring a DirPort will still work, for now.)  Closes
-      ticket 40282.
diff --git a/changes/ticket40301 b/changes/ticket40301
deleted file mode 100644
index c1fd821e3f..0000000000
--- a/changes/ticket40301
+++ /dev/null
@@ -1,4 +0,0 @@
-  o Minor bugfixes (relay):
-    - Reduce the compression level for data streaming from HIGH to LOW. Fixes
-      bug 40301; bugfix on 0.3.5.1-alpha.
-

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