The Tor Browser Team is proud to announce the first stable release in the 7.5 series.
After months of hard work, there's a new stable Tor release series available! If you build Tor from source, you can now download the source code for Tor 0.3.2.9 from the usual place on the website. Packages should become available over the coming days, including (we hope) a Tor Browser release before the end of the month.
Tor 0.3.2.9 is the first stable release in the 0.3.2 series.
Tor is a labor of love built by a small group of committed individuals, but we’re lucky to have the support of a dedicated volunteer base who help us make Tor the strongest anonymity tool out there. We’re making our volunteer spotlight a regular feature here on the Tor Blog, and today, we’re highlighting Kat, who volunteers with Tor’s Community Team.
Tor 0.3.2.8-rc fixes a pair of bugs in the KIST and KISTLite schedulers that had led servers under heavy load to overload their outgoing connections. All relay operators running earlier 0.3.2.x versions should upgrade. This version also includes a mitigation for over-full DESTROY queues leading to out-of-memory conditions: if it works, we will soon backport it to earlier release series.
This is the second release candidate in the 0.3.2 series. If we find no new bugs or regression here, then the first stable 0.3.2 release will be nearly identical to this.
You can download the source from the usual place on the website. Binary packages should be available soon. There probably won't be a Tor Browser release for this one; this issues fixed here are mainly (but not exclusively) relevant to relays.
Changes in version 0.3.2.8-rc - 2017-12-21
- Major bugfixes (KIST, scheduler):
- The KIST scheduler did not correctly account for data already enqueued in each connection's send socket buffer, particularly in cases when the TCP/IP congestion window was reduced between scheduler calls. This situation lead to excessive per-connection buffering in the kernel, and a potential memory DoS. Fixes bug 24665; bugfix on 0.3.2.1-alpha.
- Minor features (geoip):
- Update geoip and geoip6 to the December 6 2017 Maxmind GeoLite2 Country database.
Tor Browser 7.5a10 is now available from the Tor Browser Project page and also from our
Tor 0.3.2.7-rc fixes various bugs in earlier versions of Tor, including some that could affect reliability or correctness.
This is the first release candidate in the 0.3.2 series. If we find no new bugs or regression here, then the first stable 0.3.2. release will be nearly identical to this.
You can download the source from the usual place on the website. Binary packages should be available soon, with a Tor Browser alpha release likely some time next week.
Changes in version 0.3.2.7-rc - 2017-12-14
- Major bugfixes (circuit prediction):
- Fix circuit prediction logic so that a client doesn't treat a port as being "handled" by a circuit if that circuit already has isolation settings on it. This change should make Tor clients more responsive by improving their chances of having a pre-created circuit ready for use when a request arrives. Fixes bug 18859; bugfix on 0.2.3.3-alpha.
- Minor features (logging):
- Provide better warnings when the getrandom() syscall fails. Closes ticket 24500.