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preTor 0.2.1.26 addresses the recent connection and memory overload problems we've been seeing on relays, especially relays with their DirPort open. If your relay has been crashing, or you turned it off because it used too many resources, give this release a try. This release also fixes yet another instance of broken OpenSSL libraries that was causing some relays to drop out of the consensus. People running Tor as a relay should upgrade: https://www.torproject.org/download Changes in version 0.2.1.26 - 2010-05-02 o Major bugfixes: - Teach relays to defend themselves from connection overload. Relays now close idle circuits early if it looks like they were intended for directory fetches. Relays are also more aggressive about closing TLS connections that have no circuits on them. Such circuits are unlikely to be re-used, and tens of thousands of them were piling up at the fast relays, causing the relays to run out of sockets and memory. Bugfix on 0.2.0.22-rc (where clie/pre

preWe have declared end-of-life for Tor 0.2.0.x. Those Tor versions have several known flaws, and nobody should be using them. You should upgrade. Specifically, the big flaw in Tor lt;= 0.2.0.35 is that its list of directory authorities is out of date, so you'll find it hard to learn about the network. We're signing the network status consensus with the old signatures for now, but we're going to stop doing that in a few weeks, which means your Tor 0.2.0.x will fail to find the current network. The only exception is people using Debian Lenny -- our nice Debian packager is trying to keep that package maintained for you. As a bonus, if you move to a newer Tor you'll get significant performance boosts as a client, and you'll improve the performance for others as a relay. Thanks, --Roger ------------------------------------------------------------------------ This is the Tor announcements list. If you want to unsubscribe, send mail to majordomolt; at gt;seul.org with "unsubscribe or-announce" as your message. /pre

preTor 0.2.1.25 fixes a regression introduced in 0.2.1.23 that could prevent relays from guessing their IP address correctly. It also fixes several minor potential security bugs. People running Tor as a relay should upgrade: https://www.torproject.org/download Changes in version 0.2.1.25 - 2010-03-16 o Major bugfixes: - Fix a regression from our patch for bug 1244 that caused relays to guess their IP address incorrectly if they didn't set Address in their torrc and/or their address fails to resolve. Bugfix on 0.2.1.23; fixes bug 1269. - When freeing a session key, zero it out completely. We only zeroed the first ptrsize bytes. Bugfix on 0.0.2pre8. Discovered and patched by ekir. Fixes bug 1254. o Minor bugfixes: - Fix a dereference-then-NULL-check sequence when publishing descriptors. Bugfix on 0.2.1.5-alpha. Discovered by ekir; fixes bug 1255. - Fix another dereference-then-NULL-check sequence. Bugfix on 0.2.1.14-rc. Discovered by ekir; fix/pre

preTor 0.2.1.23 fixes a huge client-side performance bug, makes Tor work again on the latest OS X, and updates the location of a directory authority. Tor 0.2.1.24 makes Tor work again on the latest OS X -- this time for sure! The Windows and OS X bundles also come with a newer version of Polipo that fixes some stability and security problems. People using Tor as a client should upgrade: https://www.torproject.org/easy-download Changes in version 0.2.1.23 - 2010-02-13 o Major bugfixes (performance): - We were selecting our guards uniformly at random, and then weighting which of our guards we'd use uniformly at random. This imbalance meant that Tor clients were severely limited on throughput (and probably latency too) by the first hop in their circuit. Now we select guards weighted by currently advertised bandwidth. We also automatically discard guards picked using the old algorithm. Fixes bug 1217; bugfix on 0.2.1.3-alpha. Found by Mike Perry. o Major bugfixes: /pre