ROS 1.1.7 has been released. This fixes two issues we found with
roslaunch: paramiko 1.7.4 on Ubunty Jaunty fails to load system host
keys properly, and new name validation was overly strict. We are soon
approaching feature freeze for ROS 1.2, which will end new feature
development in the unstable 1.1.x series.

 -- your friendly neighborhood ROS team