Posts in category releases

New alpha release: Tor 0.4.1.1-alpha

by nickm | May 22, 2019

There's a new alpha release available for download. If you build Tor from source, you can download the source code for 0.4.1.1-alpha from the usual place on the website. Packages should be available over the coming weeks, with a new alpha Tor Browser release in the next couple of weeks.

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

This is the first alpha in the 0.4.1.x series. It introduces lightweight circuit padding to make some onion-service circuits harder to distinguish, includes a new "authenticated SENDME" feature to make certain denial-of-service attacks more difficult, and improves performance in several areas.

Changes in version 0.4.1.1-alpha - 2019-05-22

  • Major features (circuit padding):
    • Onion service clients now add padding cells at the start of their INTRODUCE and RENDEZVOUS circuits, to make those circuits' traffic look more like general purpose Exit traffic. The overhead for this is 2 extra cells in each direction for RENDEZVOUS circuits, and 1 extra upstream cell and 10 downstream cells for INTRODUCE circuits. This feature is only enabled when also supported by the circuit's middle node. (Clients may specify fixed middle nodes with the MiddleNodes option, and may force-disable this feature with the CircuitPadding torrc.) Closes ticket 28634.
  • Major features (code organization):
    • Tor now includes a generic publish-subscribe message-passing subsystem that we can use to organize intermodule dependencies. We hope to use this to reduce dependencies between modules that don't need to be related, and to generally simplify our codebase. Closes ticket 28226.

 

New Release: Tor 0.4.0.5

by nickm | May 3, 2019

After months of work, we have a new stable release series! If you build Tor from source, you can download the source code for 0.4.0.5 on the website. Packages should be available within the next several weeks, with a new Tor Browser likely later this month.

This is the first stable release in the 0.4.0.x series. It contains improvements for power management and bootstrap reporting, as well as preliminary backend support for circuit padding to prevent some kinds of traffic analysis. It also continues our work in refactoring Tor for long-term maintainability.

New Release: Tor 0.4.0.4-rc

by nickm | April 11, 2019

Tor 0.4.0.4-rc is the first release candidate in its series; it fixes several bugs from earlier versions, including some that had affected stability, and one that prevented relays from working with NSS.

New release: Tor 0.4.0.3-alpha

by nickm | March 22, 2019

There's a new alpha release available for download. If you build Tor from source, you can download the source code for 0.4.0.3-alpha from the usual place on the website. Packages should be available over the coming weeks, with a new alpha Tor Browser release some time in the coming weeks.

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

Tor 0.4.0.3-alpha is the third in its series; it fixes several small bugs from earlier versions.

Changes in version 0.4.0.3-alpha - 2019-03-22

  • Minor features (address selection):
    • Treat the subnet 100.64.0.0/10 as public for some purposes; private for others. This subnet is the RFC 6598 (Carrier Grade NAT) IP range, and is deployed by many ISPs as an alternative to RFC 1918 that does not break existing internal networks. Tor now blocks SOCKS and control ports on these addresses and warns users if client ports or ExtORPorts are listening on a RFC 6598 address. Closes ticket 28525. Patch by Neel Chauhan.
  • Minor features (geoip):
    • Update geoip and geoip6 to the March 4 2019 Maxmind GeoLite2 Country database. Closes ticket 29666.

 

New Release: Tor 0.4.0.1-alpha

by nickm | January 18, 2019

There's a new alpha release available for download. If you build Tor from source, you can download the source code for 0.4.0.1-alpha from the download page. Packages should be available over the coming weeks, with a new alpha Tor Browser release likely by the end of the month.

New Releases: Tor 0.3.5.7, 0.3.4.10, and 0.3.3.11

by nickm | January 8, 2019

Tor 0.3.5.7 is the first stable release in its series; it includes compilation and portability fixes, and a fix for a severe problem affecting directory caches. Tor 0.3.4.10 and 0.3.3.11 are also released today; please see the official announcements for those releases if you are tracking older stable versions.

New Release: Tor 0.3.5.6-rc

by nickm | December 18, 2018

There's a new alpha release available for download. If you build Tor from source, you can download the source code for 0.3.5.6-rc from the download page on the website. Packages should be available over the coming weeks, with a new alpha Tor Browser release by early February.