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@@ -1,3 +1,45 @@
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+Changes in version 0.2.1.26 - 2010-05-02
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+ Tor 0.2.1.26 addresses the recent connection and memory overload
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+ problems we've been seeing on relays, especially relays with their
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+ DirPort open. If your relay has been crashing, or you turned it off
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+ because it used too many resources, give this release a try.
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+
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+ This release also fixes yet another instance of broken OpenSSL libraries
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+ that was causing some relays to drop out of the consensus.
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+
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+ o Major bugfixes:
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+ - Teach relays to defend themselves from connection overload. Relays
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+ now close idle circuits early if it looks like they were intended
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+ for directory fetches. Relays are also more aggressive about closing
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+ TLS connections that have no circuits on them. Such circuits are
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+ unlikely to be re-used, and tens of thousands of them were piling
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+ up at the fast relays, causing the relays to run out of sockets
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+ and memory. Bugfix on 0.2.0.22-rc (where clients started tunneling
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+ their directory fetches over TLS).
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+ - Fix SSL renegotiation behavior on OpenSSL versions like on Centos
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+ that claim to be earlier than 0.9.8m, but which have in reality
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+ backported huge swaths of 0.9.8m or 0.9.8n renegotiation
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+ behavior. Possible fix for some cases of bug 1346.
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+ - Directory mirrors were fetching relay descriptors only from v2
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+ directory authorities, rather than v3 authorities like they should.
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+ Only 2 v2 authorities remain (compared to 7 v3 authorities), leading
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+ to a serious bottleneck. Bugfix on 0.2.0.9-alpha. Fixes bug 1324.
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+
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+ o Minor bugfixes:
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+ - Finally get rid of the deprecated and now harmful notion of "clique
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+ mode", where directory authorities maintain TLS connections to
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+ every other relay.
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+
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+ o Testsuite fixes:
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+ - In the util/threads test, no longer free the test_mutex before all
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+ worker threads have finished. Bugfix on 0.2.1.6-alpha.
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+ - The master thread could starve the worker threads quite badly on
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+ certain systems, causing them to run only partially in the allowed
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+ window. This resulted in test failures. Now the master thread sleeps
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+ occasionally for a few microseconds while the two worker-threads
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+ compete for the mutex. Bugfix on 0.2.0.1-alpha.
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+
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+
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Changes in version 0.2.2.13-alpha - 2010-04-24
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Tor 0.2.2.13-alpha addresses the recent connection and memory overload
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problems we've been seeing on relays, especially relays with their
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Nick Mathewson