New release: Tor

by nickm | May 10, 2021

We have a new stable release today. If you build Tor from source, you can download the source code for Tor on the download page. Packages should be available within the next several weeks, with a new Tor Browser likely next week.

Tor fixes several bugs in earlier version, backporting fixes from the 0.4.6.x series.

Changes in version - 2021-05-10

  • Minor features (compatibility, Linux seccomp sandbox, backport from
    • Add a workaround to enable the Linux sandbox to work correctly with Glibc 2.33. This version of Glibc has started using the fstatat() system call, which previously our sandbox did not allow. Closes ticket 40382; see the ticket for a discussion of trade-offs.
  • Minor features (compilation, backport from
    • Make the autoconf script build correctly with autoconf versions 2.70 and later. Closes part of ticket 40335.


Check the status of Tor services with

by anarcat | May 5, 2021

The Tor Project now has a status page which shows the state of our major services.

You can check status.torproject for news about major outages in Tor services, including v3 and v2 onion services, directory authorities, our website (, and the tool. The status page also displays outages related to Tor internal services, like our GitLab instance.

This post documents why we launched, how the service was built, and how it works.

New Alpha Release: Tor

by nickm | April 15, 2021

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

Remember, this is an alpha release: you should only run this if you'd like to find and report more bugs than usual.

Tor is the second alpha in its series. It fixes several small bugs in previous releases, and solves other issues that had enabled denial-of-service attacks and affected integration with other tools.

Changes in version - 2021-04-15

  • 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.
  • 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.