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+Overview
+--------
+This branch (hydro-devel) is intended for ROS Hydro and above, and uses the Catkin buildsystem. It may also be compatible with ROS Groovy.
+
 This ROS stack includes an Arduino library (called ROSArduinoBridge) and a collection of ROS packages for controlling an Arduino-based robot using standard ROS messages and services.  The stack does **not** depend on ROS Serial.
 
 Features of the stack include: