mechanize 2.1.pre.1 is up on rubygems.org. Notable improvements over mechanize 2.0.1 include:

* Improvements in handling of connections closed by the server including a connection
  idle timeout setting and the ability to disable keep-alive connections. This addresses
  the "too many connection resets" error.
* Improvements in cookie handling by Akinori MUSHA including cookie behavior like most
  modern browsers, proper TLD cookie domain handling via the domain_name gem
* SSL peer certificate validation is enabled by default.

You can read the full list of changes in the mechanize release notes:

  http://mechanize.rubyforge.org/CHANGELOG_rdoc.html#label-2.1+%2F+%3F%3F

You can install the prerelease version of mechanize by running:

  gem install mechanize --prerelease

If you find bugs in the prerelease version please file an issue in the mechanize issues tracker on github:

  https://github.com/tenderlove/mechanize/issues