@Peter9606 usually we do a port on a branch, then PR into `ros2`. If you are porting, do keep in mind that some of the changes can be upstreamed, so they should be done in separate commits (`package.xml` migration, `tf2` migration, de-boostifying, etc) and a PR likely filed upstream so that the ROS1 side of things can be improved. --- [Visit Topic](https://discourse.ros.org/t/syncronized-callbacks-in-ros2/2015/5) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: