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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: - Make Tor work again on the latest OS X: when deciding whether to use strange flags to turn TLS renegotiation on, detect the OpenSSL version at run-time, not compile time. We need to do this because Apple doesn't update its dev-tools headers when it updates its libraries in a security patch. - Fix a potential buffer overflow in lookup_last_hid_serv_request() that could happen on 32-bit platforms with 64-bit time_t. Also fix a memory leak when requesting a hidden service descriptor we've requested before. Fixes bug 1242, bugfix on 0.2.0.18-alpha. Found by aakova. o Directory authority changes: - Change IP address for dannenberg (v3 directory authority), and remove moria2 (obsolete v1, v2 directory authority and v0 hidden service directory authority) from the list. o Minor bugfixes: - Refactor resolve_my_address() to not use gethostbyname() anymore. Fixes bug 1244; bugfix on 0.0.2pre25. Reported by Mike Mestnik. o Minor features: - Avoid a mad rush at the beginning of each month when each client rotates half of its guards. Instead we spread the rotation out throughout the month, but we still avoid leaving a precise timestamp in the state file about when we first picked the guard. Improves over the behavior introduced in 0.1.2.17.
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 clients started tunneling their directory fetches over TLS). - Fix SSL renegotiation behavior on OpenSSL versions like on Centos that claim to be earlier than 0.9.8m, but which have in reality backported huge swaths of 0.9.8m or 0.9.8n renegotiation behavior. Possible fix for some cases of bug 1346. - Directory mirrors were fetching relay descriptors only from v2 directory authorities, rather than v3 authorities like they should. Only 2 v2 authorities remain (compared to 7 v3 authorities), leading to a serious bottleneck. Bugfix on 0.2.0.9-alpha. Fixes bug 1324. o Minor bugfixes: - Finally get rid of the deprecated and now harmful notion of "clique mode", where directory authorities maintain TLS connections to every other relay. o Testsuite fixes: - In the util/threads test, no longer free the test_mutex before all worker threads have finished. Bugfix on 0.2.1.6-alpha. - The master thread could starve the worker threads quite badly on certain systems, causing them to run only partially in the allowed window. This resulted in test failures. Now the master thread sleeps occasionally for a few microseconds while the two worker-threads compete for the mutex. Bugfix on 0.2.0.1-alpha.
Changes in version 0.2.1.26Major 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 clients started tunneling their directory fetches over TLS). * Fix SSL renegotiation behavior on OpenSSL versions like on Centos that claim to be earlier than 0.9.8m, but which have in reality backported huge swaths of 0.9.8m or 0.9.8n renegotiation behavior. Possible fix for some cases of bug 1346. * Directory mirrors were fetching relay descriptors only from v2 directory authorities, rather than v3 authorities like they should. Only 2 v2 authorities remain (compared to 7 v3 authorities), leading to a serious bottleneck. Bugfix on 0.2.0.9-alpha. Fixes bug 1324.Minor bugfixes: * Finally get rid of the deprecated and now harmful notion of "clique mode", where directory authorities maintain TLS connections to every other relay.Testsuite fixes: * In the util/threads test, no longer free the test_mutex before all worker threads have finished. Bugfix on 0.2.1.6-alpha. * The master thread could starve the worker threads quite badly on certain systems, causing them to run only partially in the allowed window. This resulted in test failures. Now the master thread sleeps occasionally for a few microseconds while the two worker-threads compete for the mutex. Bugfix on 0.2.0.1-alpha.
1.3.8: Released 2010-07-22 update Firefox to 3.5.111.3.9: Released 2010-07-22 update Pidgin to 2.7.2