The big feature of this release — and the reason for the new version number — are the new WebDriver APIs for Python, Ruby, Java and C#. These have been in development for over four years, and are already widely used, trusted and depended on. The WebDriver APIs have been written by developers familiar with each language, so they feel like they belong there. We’re very proud of them, and hope you enjoy using them.

Support for WebDriver is also baked into Opera and Chrome, and we’re working closely with Mozilla to ensure that their browsers also support it. Looking to the future, WebDriver also works on both Android and iPhone, allowing you to test your sites on the next wave of the Web.