Matt Horan joined as a capybara-webkit author this fall, and he's been busily improving the codebase, making things less crashtastic and more fastastic. Starting with version 0.14, we're changing the slogan from "capybara-webkit: it works every time, 70% of the time" to "capybara-webkit: we're almost sure it really works now!"
With this release, we're also dropping support for Qt 4.7 and Capybara 1.x.
If you've tried capybara-webkit in the past and had trouble with crashes or freezing up, give the latest release a shot. If you're already happily using it, upgrade anyway for a faster, more reliable experience.
You can install capybara-webkit from RubyGems.org by adding it to your Gemfile.