New release of ros_control 0.19.3 and ros_controllers 0.18.0

General
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Hey fellow ros_controllers,

I’m happy to announce the new releases of ros_control 0.19.3 and ros_controllers 0.18.0 in ROS Noetic!

Highlights:

  • Major documentation update to help clarify the usage of hardware_interface components, includes updates to docstrings as well as doxygen pages, see the diff here: https://github.com/ros-controls/ros_control/pull/479/files
  • Our Python tools should all be happy with Python3, please let us know if you find issues
  • JointGroupPositionController will now also support namespaced robot_descriptions
  • effort_controllers/JointGroupPositionController now starts up with current positions set as target.
  • joint_trajectory_controller was checking against one-timestep-too-old state, which highlighted some shortcomings in the tolerance tests: both are fixed now.

Cheers,
Bence

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Thanks Bence! We really appreciate the work you and others are putting into maintaining and improving ros_control.

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