ROS Indigo Igloo
ROS Indigo Igloo is the eighth ROS distribution release and was released July 22nd, 2014.
ROS Indigo Igloo will be primarily targeted at the Ubuntu 14.04 LTS (Trusty) release, though other Linux systems as well as Mac OS X, Android, and Windows are supported to varying degrees. For more information on compatibility on other platforms, please see REP 3: Target Platforms.
Indigo supports releasing, documenting and integration testing of catkin-based packages only. This is especially driven by the goal to provide long term support of this distribution. Building rosbuild-based packages from source is still supported though.
Please see the installation instructions. There are binary packages available for Ubuntu distributions, Saucy and Trusty for both 32 and 64 bit architectures. There is also improved infrastructure for building from source, most heavily tested on Mac OS X. And experimental instructions for other platforms.
To get a better idea of the parts of ROS which have been changed in ROS Indigo, please look at the ROS Indigo Migration page.