hidden service fixes

Tor 0.2.0.35 fixes a big bug that was causing Tor relays with dynamic
IP addresses to disappear from the network. It also fixes a rare crash
bug on fast exit relays.

https://www.torproject.org/easy-download

Changes in version 0.2.0.35 - 2009-06-24
Security fix:

• Avoid crashing in the presence of certain malformed descriptors.
  Found by lark, and by automated fuzzing.
• Fix an edge case where a malicious exit relay could convince a
  controller that the client's DNS question resolves to an internal IP
  address. Bug found and fixed by "optimist"; bugfix on 0.1.2.8-beta.

Major bugfixes:

• Finally fix the bug where dynamic-IP relays disappear when their
  IP address changes: directory mirrors were mistakenly telling
  them their old address if they asked via begin_dir, so they
  never got an accurate answer about their new address, so they read more »

Tor 0.2.1.16-rc speeds up performance for fast exit relays, and fixes
a bunch of minor bugs.

https://www.torproject.org/download

Changes in version 0.2.1.16-rc - 2009-06-20
Security fixes:

• Fix an edge case where a malicious exit relay could convince a
  controller that the client's DNS question resolves to an internal IP
  address. Bug found and fixed by "optimist"; bugfix on 0.1.2.8-beta.

Major performance improvements (on 0.2.0.x):

• Disable and refactor some debugging checks that forced a linear scan
  over the whole server-side DNS cache. These accounted for over 50%
  of CPU time on a relatively busy exit node's gprof profile. Found
  by Jacob.
• Disable some debugging checks that appeared in exit node profile
  data.

Minor features: read more »

• Update to the "June 3 2009" ip-to-country file.