New release candidate: Tor 0.4.6.4-rc

There's a new release candidate available for download. If you build Tor from source, you can download the source code for 0.4.6.4-rc from the download page on the website. Packages should be available over the coming weeks, with a new alpha Tor Browser release likely next week.

Remember, this is a not a stable release yet: but we still hope that people will try it out and look for bugs before the official stable release comes out in June.

Tor 0.4.6.4-rc fixes a few bugs from previous releases. This, we hope, the final release candidate in its series: unless major new issues are found, the next release will be stable.

Changes in version 0.4.6.4-rc - 2021-05-28

  • 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.
  • 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    • Avoid a set of bugs that could be caused by inconsistently preferring an out-of-date consensus stored in a stale directory cache over a more recent one stored on disk as the latest consensus.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.

 

  • 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.
  • 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.
  • 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.

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