- tor-announce - lists.torproject.org

Tor Browser 10.5.5 is released
by Matthew Finkel 20 Aug '21

20 Aug '21

Hello! Tor Browser 10.5.5 is now available from the Tor Browser download page [1] and also from our distribution directory [2]. 1: https://www.torproject.org/download/ 2: https://www.torproject.org/dist/torbrowser/10.5.5/ This version updates Tor to 0.4.5.10 [3] that includes a fix for a security issue. On Android, this version updates Firefox to 91.2.0 and includes important security updates [4]. Please see the blog post [5] for more details about this version. 3: https://blog.torproject.org/node/2062 4: https://www.mozilla.org/en-US/security/advisories/mfsa2021-34/ 5: https://blog.torproject.org/new-release-tor-browser-1055 The full changelog since Tor Browser 10.5.4 is: * All Platforms * Update Tor to 0.4.5.10 * Linux * Bug 40582: Tor Browser 10.5.2 tabs always crash on Fedora Xfce Rawhide [tor-browser] * Android * Update Fenix to 91.2.0 * Update NoScript to 11.2.11 * Bug 40063: Move custom search providers [android-components] * Bug 40176: TBA: sometimes I only see the banner and can't tap on the address bar [fenix] * Bug 40181: Remove V2 Deprecation banner on about:tor for Android [fenix] * Bug 40184: Rebase fenix patches to fenix v91.0.0-beta.5 [fenix] * Bug 40185: Use NimbusDisabled [fenix] * Bug 40186: Hide Credit Cards in Settings [fenix] * Build System * Android * Update Go to 1.15.15 * Bug 40331: Update components for mozilla91 [tor-browser-build]

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New stable security release: Tor 0.4.6.7
by Alexander Færøy 16 Aug '21

16 Aug '21

Hello, everyone! (If you are about to reply saying "please take me off this list", instead please follow these instructions: https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-announce/ If you have trouble, it is probably because you subscribed using a different address than the one you are trying to unsubscribe with. You will have to enter the actual email address you used when you subscribed.) Source code for Tor 0.4.6.7 is now available; you can download the source code from the download page at https://www.torproject.org/download/tor/. Packages should be available within the next several weeks, with a new Tor Browser later this week. Changes in version 0.4.6.7 - 2021-08-16 This version fixes several bugs from earlier versions of Tor, including one that could lead to a denial-of-service attack. Everyone running an earlier version, whether as a client, a relay, or an onion service, should upgrade to Tor 0.3.5.16, 0.4.5.10, or 0.4.6.7. o Major bugfixes (cryptography, security): - Resolve an assertion failure caused by a behavior mismatch between our batch-signature verification code and our single-signature verification code. This assertion failure could be triggered remotely, leading to a denial of service attack. We fix this issue by disabling batch verification. Fixes bug 40078; bugfix on 0.2.6.1-alpha. This issue is also tracked as TROVE-2021-007 and CVE-2021-38385. Found by Henry de Valence. o Minor feature (fallbackdir): - Regenerate fallback directories list. Close ticket 40447. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/08/12. o Minor bugfix (crypto): - Disable the unused batch verification feature of ed25519-donna. Fixes bug 40078; bugfix on 0.2.6.1-alpha. Found by Henry de Valence. o Minor bugfixes (onion service): - Send back the extended SOCKS error 0xF6 (Onion Service Invalid Address) for a v2 onion address. Fixes bug 40421; bugfix on 0.4.6.2-alpha. o Minor bugfixes (relay): - Reduce the compression level for data streaming from HIGH to LOW in order to reduce CPU load on the directory relays. Fixes bug 40301; bugfix on 0.3.5.1-alpha. o Minor bugfixes (timekeeping): - Calculate the time of day correctly on systems where the time_t type includes leap seconds. (This is not the case on most operating systems, but on those where it occurs, our tor_timegm function did not correctly invert the system's gmtime function, which could result in assertion failures when calculating voting schedules.) Fixes bug 40383; bugfix on 0.2.0.3-alpha. -- Alexander Færøy

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Tor Browser 10.5.4 is released (Windows, macOS, Linux)
by Matthew Finkel 10 Aug '21

10 Aug '21

Hello! Tor Browser 10.5.4 is now available from the Tor Browser download page [1] and also from our distribution directory [2]. 1: https://www.torproject.org/download/ 2: https://www.torproject.org/dist/torbrowser/10.5.4/ This version updates Firefox to 78.13.0esr. This version includes important security updates [3] to Firefox. Please see the blog post [4] for more details about this version. 3: https://www.mozilla.org/en-US/security/advisories/mfsa2021-34/ 4: https://blog.torproject.org/new-release-tor-browser-1054 The full changelog since Tor Browser 10.5.2 is: * Windows + OS X + Linux * Update Firefox to 78.13.0esr * Update NoScript to 11.2.11 * Bug 40041: Remove V2 Deprecation banner on about:tor for desktop [torbutton] * Bug 40506: Saved Logins not available in 10.5 [tor-browser] * Bug 40524: Update DuckDuckGo onion site URL in search preferences and onboarding [tor-browser] * Build System * Windows + OS X + Linux * Update Go to 1.15.14

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Tor Browser 10.5.3 is released (Android)
by Matthew Finkel 20 Jul '21

20 Jul '21

Hello! Tor Browser 10.5.3 is now available from the Tor Browser download page [1] and also from our distribution directory [2]. 1: https://www.torproject.org/download/ 2: https://www.torproject.org/dist/torbrowser/10.5.3/ This version updates Firefox to 90.1.1. This version includes important security updates [3] to Firefox. Please see the blog post [4] for more details about this version. 3: https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/ 4: https://blog.torproject.org/new-release-tor-browser-1053 The full changelog since Tor Browser 10.5.1 is: * Android * Update HTTPS Everywhere to 2021.7.13 * Update Fenix to 90.1.1 * Bug 40172: Find the Quit button [fenix] * Bug 40173: Rebase fenix patches to fenix v90.0.0-beta.6 [fenix] * Bug 40177: Hide Tor icons in settings [fenix] * Bug 40179: Show Snowflake bridge option on Release [fenix] * Bug 40180: Rebase fenix patches to fenix v90.1.1 [fenix] * Build System * Android * Bug 40312: Update components for mozilla90 [tor-browser-build]

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Tor Browser 10.5.2 is released (Windows, macOS, Linux)
by Matthew Finkel 13 Jul '21

13 Jul '21

Hello! Tor Browser 10.5.2 is now available from the Tor Browser download page [1] and also from our distribution directory [2]. 1: https://www.torproject.org/download/ 2: https://www.torproject.org/dist/torbrowser/10.5.2/ This version updates Firefox to 78.12.0esr. This version includes important security updates [3] to Firefox. Please see the blog post [4] for more details about this version. 3: https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/ 4: https://blog.torproject.org/new-release-tor-browser-1052 The full changelog since Tor Browser 10.5 is: * Windows + OS X + Linux * Update Firefox to 78.12.0esr * Bug 40497: Cannot set multiple pages as home pages in 10.5a17 [tor-browser] * Bug 40507: Full update is not downloaded after applying partial update fails [tor-browser] * Bug 40510: open tabs get redirected to about:torconnect on restart [tor-browser]

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Tor Browser 10.5.1 is released (Android Only)
by Matthew Finkel 07 Jul '21

07 Jul '21

Hello! Tor Browser 10.5.1 is now available for Android from the Tor Browser download page [1] and also from our distribution directory [2]. 1: https://www.torproject.org/download/ 2: https://www.torproject.org/dist/torbrowser/10.5.1/ This release is a bugfix for Tor Browser 10.5. Please see the blog post [3] for more details about this version. 3: https://blog.torproject.org/new-release-tor-browser-1051 The full changelog since Tor Browser 10.5.1 is: * Android * Bug 40324: Change Fenix variant to Release [fenix]

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Tor Browser 10.5 is released
by Matthew Finkel 06 Jul '21

06 Jul '21

Hello! Tor Browser 10.5 is now available from the Tor Browser download page [1] and also from our distribution directory [2]. 1: https://www.torproject.org/download/ 2: https://www.torproject.org/dist/torbrowser/10.5/ This release includes is focused on improving the internet access of users connecting through Tor in censored contexts. Please see the blog post [3] for more details about this version. 3: https://blog.torproject.org/new-release-tor-browser-105 The full changelog since Tor Browser 10.0.18 is: * All Platforms * Update NoScript to 11.2.9 * Update Tor Launcher to 0.2.30 * Translations update * Bug 25483: Provide Snowflake based on Pion for Windows, macOS, and Linux * Bug 33761: Remove unnecessary snowflake dependencies * Bug 40064: Bump libevent to 2.1.12 [tor-browser-build] * Bug 40137: Migrate https-everywhere storage to idb [tor-browser] * Bug 40261: Bump versions of snowflake and webrtc [tor-browser-build] * Bug 40263: Update domain front for Snowflake [tor-browser-build] * Bug 40302: Update version of snowflake [tor-browser-build] * Bug 40030: DuckDuckGo redirect to html doesn't work [torbutton] * Windows + OS X + Linux * Bug 27476: Implement about:torconnect captive portal within Tor Browser [tor-browser] * Bug 32228: Bookmark TPO support domains in Tor Browser * Bug 33803: Add a secondary nightly MAR signing key [tor-browser] * Bug 33954: Consider different approach for Bug 2176 * Bug 34345: "Don't Bootstrap" Startup Mode * Bug 40011: Rename tor-browser-brand.ftl to brand.ftl [torbutton] * Bug 40012: Fix about:tor not loading some images in 82 [torbutton] * Bug 40138: Move our primary nightly MAR signing key to tor-browser [tor-browser-build] * Bug 40209: Implement Basic Crypto Safety [tor-browser] * Bug 40428: Correct minor Cryptocurrency warning string typo [tor-browser] * Bug 40429: Update Onboarding for 10.5 [tor-browser] * Bug 40455: Block or recover background requests after bootstrap [tor-browser] * Bug 40456: Update the SecureDrop HTTPS-Everywhere update channel [tor-browser] * Bug 40475: Include clearing CORS preflight cache [tor-browser] * Bug 40478: Onion alias url rewrite is broken [tor-browser] * Bug 40484: Bootstrapping page show Quickstart text [tor-browser] * Bug 40490: BridgeDB bridge captcha selection is broken in alpha [tor-browser] * Bug 40495: Onion pattern is focusable by click on about:torconnect [tor-browser] * Bug 40499: Onion Alias doesn't work with TOR_SKIP_LAUNCH [tor-browser] * Android * Bug 30318: Integrate snowflake into mobile Tor Browser * Bug 40206: Disable the /etc/hosts parser [tor-browser] * Linux * Bug 40089: Remove CentOS 6 support for Tor Browser 10.5 [tor-browser] * Build System * All Platforms * Update Go to 1.15.13 * Bug 23631: Use rootless containers [tor-browser-build] * Bug 33693: Change snowflake and meek dummy address [tor-browser] * Bug 40016: getfpaths is not setting origin_project [rbm] * Bug 40169: Update apt package cache after calling pre_pkginst, too [tor-browser-build] * Bug 40194: Remove osname part in cbindgen filename [tor-browser-build] * Windows + OS X + Linux * Bug 40081: Build Mozilla code with --enable-rust-simd [tor-browser-build] * Bug 40104: Use our TMPDIR when creating our .mar files [tor-browser-build] * Bug 40133: Bump Rust version for ESR 78 to 1.43.0 [tor-browser-build] * Bug 40166: Update apt cache before calling pre_pkginst in container-image config [tor-browser-build] * Android * Bug 28672: Android reproducible build of Snowflake * Bug 40313: Use apt-get to install openjdk-8 .deb files with their dependencies [tor-browser-build] * Windows * Bug 34360: Bump binutils to 2.35.1 * Bug 40131: Remove unused binutils patches [tor-browser-build] * Linux * Bug 26238: Move to Debian Jessie for our Linux builds * Bug 31729: Support Wayland * Bug 40041: Remove CentOS 6 support for 10.5 series [tor-browser-build] * Bug 40103: Add i386 pkg-config path for linux-i686 [tor-browser-build] * Bug 40112: Strip libstdc++ we ship [tor-browser-build] * Bug 40118: Add missing libdrm dev package to firefox container [tor-browser-build] * Bug 40235: Bump apt for Jessie containers [tor-browser-build]

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Tor 0.4.6.6 is released
by Nick Mathewson 30 Jun '21

30 Jun '21

Hello, everyone! (If you are about to reply saying "please take me off this list", instead please follow these instructions: https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-announce/ . If you have trouble, it is probably because you subscribed using a different address than the one you are trying to unsubscribe with. You will have to enter the actual email address you used when you subscribed.) Source code for Tor 0.4.6.6 is now available; you can download the source code from the download page at https://www.torproject.org/download/tor/. This is a small release, primarily intended to fix a compilation issue that had kept Tor 0.4.6.5 from building on some systems. If 0.4.6.5 is already working for you, there's no reason to upgrade to this one. Packagers might not distribute packages for this one, if they already have working packages for 0.4.6.5. Changes in version 0.4.6.6 - 2021-06-30 Tor 0.4.6.6 makes several small fixes on 0.4.6.5, including one that allows Tor to build correctly on older versions of GCC. You should upgrade to this version if you were having trouble building Tor 0.4.6.5; otherwise, there is probably no need. o Minor bugfixes (compilation): - Fix a compilation error when trying to build Tor with a compiler that does not support const variables in static initializers. Fixes bug 40410; bugfix on 0.4.6.5. - Suppress a strict-prototype warning when building with some versions of NSS. Fixes bug 40409; bugfix on 0.3.5.1-alpha. o Minor bugfixes (testing): - Enable the deterministic RNG for unit tests that covers the address set bloomfilter-based API's. Fixes bug 40419; bugfix on 0.3.3.2-alpha.

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New stable _security_ releases: Tor 0.3.5.15, 0.4.4.9, and 0.4.5.9
by Nick Mathewson 14 Jun '21

14 Jun '21

Hello, everyone! (If you are about to reply saying "please take me off this list", instead please follow these instructions: https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-announce/ . If you have trouble, it is probably because you subscribed using a different address than the one you are trying to unsubscribe with. You will have to enter the actual email address you used when you subscribed.) Source code for Tor 0.3.5.15, 0.4.4.9, and 0.4.5.9 is now available; since these are older release series, you can download the source code at https://dist.torproject.org/ . Packages should be available within the next several weeks, with a new Tor Browser around the end of the week. This release fixes several security vulnerabilities, described in the changelogs. We are also releasing security fixes for the other supported release series; I'll describe them in a separate email. I recommend that everybody upgrade to 0.3.5.15, 0.4.4.9, 0.4.5.9, or 0.4.6.5 as soon as binaries are available (or right now, if you build from source). Below is the changelog for 0.4.5.9. You can find the changelogs for the other releases at: https://gitweb.torproject.org/tor.git/tree/ChangeLog?h=tor-0.3.5.15 https://gitweb.torproject.org/tor.git/tree/ChangeLog?h=tor-0.4.4.9 Changes in version 0.4.5.9 - 2021-06-14 Tor 0.4.5.9 fixes several security issues, including a denial-of-service attack against onion service clients, and another denial-of-service attack against relays. Everybody should upgrade to one of 0.3.5.15, 0.4.4.9, 0.4.5.9, or 0.4.6.5. o Major bugfixes (security, backport from 0.4.6.5): - Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it. Fixes bug 40389; bugfix on 0.3.5.1-alpha. This issue is also tracked as TROVE-2021- 003 and CVE-2021-34548. o Major bugfixes (security, defense-in-depth, backport from 0.4.6.5): - Detect more failure conditions from the OpenSSL RNG code. Previously, we would detect errors from a missing RNG implementation, but not failures from the RNG code itself. Fortunately, it appears those failures do not happen in practice when Tor is using OpenSSL's default RNG implementation. Fixes bug 40390; bugfix on 0.2.8.1-alpha. This issue is also tracked as TROVE-2021-004. Reported by Jann Horn at Google's Project Zero. o Major bugfixes (security, denial of service, backport from 0.4.6.5): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs, to create collisions and make the hash table inefficient. Now we use a SipHash construction here instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005 and CVE-2021-34549. Reported by Jann Horn from Google's Project Zero. - Fix an out-of-bounds memory access in v3 onion service descriptor parsing. An attacker could exploit this bug by crafting an onion service descriptor that would crash any client that tried to visit it. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006 and CVE-2021-34550. Reported by Sergei Glazunov from Google's Project Zero. o Minor features (compatibility, backport from 0.4.6.4-rc): - Remove an assertion function related to TLS renegotiation. It was used nowhere outside the unit tests, and it was breaking compilation with recent alpha releases of OpenSSL 3.0.0. Closes ticket 40399. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. o Minor bugfixes (control, sandbox, backport from 0.4.6.4-rc): - Allow the control command SAVECONF to succeed when the seccomp sandbox is enabled, and make SAVECONF keep only one backup file to simplify implementation. Previously SAVECONF allowed a large number of backup files, which made it incompatible with the sandbox. Fixes bug 40317; bugfix on 0.2.5.4-alpha. Patch by Daniel Pinto. o Minor bugfixes (metrics port, backport from 0.4.6.4-rc): - Fix a bug that made tor try to re-bind() on an already open MetricsPort every 60 seconds. Fixes bug 40370; bugfix on 0.4.5.1-alpha.

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New stable _security_ release: Tor 0.4.6.5
by Nick Mathewson 14 Jun '21

14 Jun '21

Hello, everyone! (If you are about to reply saying "please take me off this list", instead please follow these instructions: https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-announce/ . If you have trouble, it is probably because you subscribed using a different address than the one you are trying to unsubscribe with. You will have to enter the actual email address you used when you subscribed.) After months of work, Tor 0.4.6.5 is now available! This is the first stable release in the 0.4.6.x series, and we hope you find it useful. You can download the source code from the download page at https://www.torproject.org/download/tor/ . Packages should be available within the next several weeks, with a new Tor Browser around the end of the week. This release fixes several security vulnerabilities, described below. We are also releasing security fixes for the other supported release series; I'll describe them in a separate email. I recommend that everybody upgrade to 0.3.5.15, 0.4.4.9, 0.4.5.9, or 0.4.6.5 as soon as binaries are available (or right now, if you build from source). Changes in version 0.4.6.5 - 2021-06-14 Tor 0.4.6.5 is the first stable release in its series. The 0.4.6.x series includes numerous features and bugfixes, including a significant improvement to our circuit timeout algorithm that should improve observed client performance, and a way for relays to report when they are overloaded. This release also includes security fixes for several security issues, including a denial-of-service attack against onion service clients, and another denial-of-service attack against relays. Everybody should upgrade to one of 0.3.5.15, 0.4.4.9, 0.4.5.9, or 0.4.6.5. Below are the changes since 0.4.5.8. For a list of changes since 0.4.6.4-rc, see the ChangeLog file. o Major bugfixes (security): - Don't allow relays to spoof RELAY_END or RELAY_RESOLVED cell on half-closed streams. Previously, clients failed to validate which hop sent these cells: this would allow a relay on a circuit to end a stream that wasn't actually built with it. Fixes bug 40389; bugfix on 0.3.5.1-alpha. This issue is also tracked as TROVE-2021- 003 and CVE-2021-34548. o Major bugfixes (security, defense-in-depth): - Detect more failure conditions from the OpenSSL RNG code. Previously, we would detect errors from a missing RNG implementation, but not failures from the RNG code itself. Fortunately, it appears those failures do not happen in practice when Tor is using OpenSSL's default RNG implementation. Fixes bug 40390; bugfix on 0.2.8.1-alpha. This issue is also tracked as TROVE-2021-004. Reported by Jann Horn at Google's Project Zero. o Major bugfixes (security, denial of service): - Resist a hashtable-based CPU denial-of-service attack against relays. Previously we used a naive unkeyed hash function to look up circuits in a circuitmux object. An attacker could exploit this to construct circuits with chosen circuit IDs, to create collisions and make the hash table inefficient. Now we use a SipHash construction here instead. Fixes bug 40391; bugfix on 0.2.4.4-alpha. This issue is also tracked as TROVE-2021-005 and CVE-2021-34549. Reported by Jann Horn from Google's Project Zero. - Fix an out-of-bounds memory access in v3 onion service descriptor parsing. An attacker could exploit this bug by crafting an onion service descriptor that would crash any client that tried to visit it. Fixes bug 40392; bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2021-006 and CVE-2021-34550. Reported by Sergei Glazunov from Google's Project Zero. 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 authority): - When voting on 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 included in the consensus. Closes ticket 40255. Patch by Neel Chauhan. o Major features (metrics): - Relays now report how overloaded they are in their extrainfo documents. This information is controlled with the OverloadStatistics torrc option, and it will be used to improve decisions about the network's load balancing. Implements proposal 328; closes ticket 40222. 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 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 warning 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 (client): - Clients now check whether their streams are attempting to re-enter the Tor network (i.e. to send Tor traffic over Tor), and close them preemptively if they think exit relays will refuse them for this reason. See ticket 2667 for details. Closes ticket 40271. o Minor features (command line): - Add long format name "--torrc-file" equivalent to the existing command-line option "-f". Closes ticket 40324. Patch by Daniel Pinto. 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 (compatibility): - Remove an assertion function related to TLS renegotiation. It was used nowhere outside the unit tests, and it was breaking compilation with recent alpha releases of OpenSSL 3.0.0. Closes ticket 40399. o Minor features (control port, stream handling): - Add the stream ID to the event line in the ADDRMAP control event. Closes ticket 40249. Patch by Neel Chauhan. o Minor features (dormant mode): - Add a new 'DormantTimeoutEnabled' option to allow coarse-grained control over whether the client ever becomes dormant from inactivity. Most people won't need this. Closes ticket 40228. - Add a new 'DormantTimeoutEnabled' option for coarse-grained control over whether the client can become dormant from inactivity. Most people won't need this. Closes ticket 40228. o Minor features (geoip data): - Update the geoip files to match the IPFire Location Database, as retrieved on 2021/06/10. o Minor features (logging): - Edit heartbeat log messages so that more of them begin with the string "Heartbeat: ". Closes ticket 40322; patch from 'cypherpunks'. - Change the DoS subsystem heartbeat line format to 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 (logging, diagnostic): - Log decompression failures at a higher severity level, since they can help provide missing context for other warning messages. We rate-limit these messages, to avoid flooding the logs if they begin to occur frequently. Closes ticket 40175. o Minor features (onion services): - Add a warning message when trying to connect to (no longer supported) v2 onion services. Closes ticket 40373. 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 features (vote document): - Add a "stats" line to directory authority votes, to report various statistics that authorities compute about the relays. This will help us diagnose the network better. Closes ticket 40314. o Minor bugfixes (build): - The configure script now shows whether or not lzma and zstd have been used, not just if the enable flag was 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 (compilation): - Fix a compilation warning about unused functions when building with a libc that lacks the GLOB_ALTDIRFUNC constant. Fixes bug 40354; bugfix on 0.4.5.1-alpha. Patch by Daniel Pinto. o Minor bugfixes (consensus handling): - Avoid a set of bugs that could be caused by inconsistently preferring an out-of-date consensus stored in a stale directory cache over a more recent one stored on disk as the latest consensus. Fixes bug 40375; bugfix on 0.3.1.1-alpha. o Minor bugfixes (control, sandbox): - Allow the control command SAVECONF to succeed when the seccomp sandbox is enabled, and make SAVECONF keep only one backup file to simplify implementation. Previously SAVECONF allowed a large number of backup files, which made it incompatible with the sandbox. Fixes bug 40317; bugfix on 0.2.5.4-alpha. Patch by Daniel Pinto. 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 PreferIPv4. Some rare configurations 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 (logging, relay): - Emit a warning if an Address is found to be internal and tor can't use it. Fixes bug 40290; bugfix on 0.4.5.1-alpha. o Minor bugfixes (metrics port): - Fix a bug that made tor try to re-bind() on an already open MetricsPort every 60 seconds. Fixes bug 40370; bugfix on 0.4.5.1-alpha. 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. This should reduce the CPU and memory burden for directory caches. Fixes bug 40301; bugfix on 0.3.5.1-alpha. o Minor bugfixes (testing, BSD): - Fix pattern-matching errors when patterns expand to invalid paths on BSD systems. Fixes bug 40318; bugfix on 0.4.5.1-alpha. Patch by Daniel Pinto. o Code simplification and refactoring: - Remove the orconn_ext_or_id_map structure and related functions. (Nothing outside of unit tests used them.) Closes ticket 33383. Patch by Neel Chauhan. o Removed features: - Remove unneeded code for parsing private keys in directory documents. This code was only used for client authentication in v2 onion services, which are now unsupported. Closes ticket 40374. - As of this release, Tor no longer supports the old v2 onion services. They were deprecated last July for security, and support will be removed entirely later this year. We strongly encourage everybody to migrate to v3 onion services. For more information, see https://blog.torproject.org/v2-deprecation-timeline . Closes ticket 40266. (NOTE: We accidentally released an earlier version of the 0.4.6.1-alpha changelog without this entry. Sorry for the confusion!) o Code simplification and refactoring (metrics, DoS): - Move the DoS subsystem into the subsys manager, including its configuration options. Closes ticket 40261. o Documentation (manual): - Move the ServerTransport* options to the "SERVER OPTIONS" section. Closes issue 40331. - Indicate that the HiddenServiceStatistics option also applies to bridges. Closes ticket 40346. - Move the description of BridgeRecordUsageByCountry to the section "STATISTICS OPTIONS". Closes ticket 40323. 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.

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