ROS 1.1 has been released. This is an **unstable** development release
to test and develop features for ROS 1.2.

Please see the release announcement here:

http://www.ros.org/news/2010/03/ros-11-released-unstable.html

Change list:

http://www.ros.org/wiki/ROS/ChangeList/1.1

 -- your friendly neighborhood ROS development team