tor network | Tor Blog

KIST and Tell: Tor’s New Traffic Scheduling Feature

The latest Tor alpha release included a new feature to address traffic congestion in the Tor network. The new algorithm —Kernel Informed Socket Transport (KIST)— prevents connections between Tor relays from becoming overwhelmed by changing how traffic is distributed throughout the Tor network.

Debian and Tor Services available as Onion Services

We, the Debian project and the Tor Project are enabling Tor

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Hidden Services, Current Events, and Freedom Hosting

Around midnight on August 4th we were notified by a few people that a large number of hidden service addresses have disappeared from the Tor Network.

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New Python/Django-based TorStatus

We're excited to announce that a group of students from Wesleyan has created a new TorStatus website written in Python.

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Upcoming Events

September 27, 2018

Tor Meetup Ciudad de México

October 02, 2018 - October 03, 2018

Tor's Open Hack Days (Mexico City)

October 04, 2018

Tormenta: diálogos feministas para las libertades y autocuidados

October 23, 2018

Embracing the Dark Web as a Tool for Privacy and Anti-Censorship (Yale)

See All Upcoming Events

Recent Updates

New Release: Tor Browser 8.5a2

Tor Browser 8.5a2 is now available from the Tor Browser Project page and also from our

New Release: Tor Browser 8.0.1

Tor Browser 8.0.1 is now available from the Tor Browser Project page and also from our

New Release: Tor 0.3.5.2-alpha

There's a new alpha release available for download. If you build Tor from source, you can download the source code for 0.3.5.2-alpha from the usual place on the website. Packages should be available over the coming weeks, with a new alpha Tor Browser release very soon.

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

Tor 0.3.5.2-alpha fixes several bugs in 0.3.5.1-alpha, including one that made Tor think it had run out of sockets. Anybody running a relay or an onion service on 0.3.5.1-alpha should upgrade.

Changes in version 0.3.5.2-alpha - 2018-09-21

Major bugfixes (relay bandwidth statistics):
- When we close relayed circuits, report the data in the circuit queues as being written in our relay bandwidth stats. This mitigates guard discovery and other attacks that close circuits for the explicit purpose of noticing this discrepancy in statistics. Fixes bug 23512; bugfix on 0.0.8pre3.
Major bugfixes (socket accounting):
- In our socket accounting code, count a socket as closed even when it is closed indirectly by the TLS layer. Previously, we would count these sockets as still in use, and incorrectly believe that we had run out of sockets. Fixes bug 27795; bugfix on 0.3.5.1-alpha.