Rolatube composite deployment booms were used for the InflateSail mission in 2017. This was the first European spacecraft to successfully demonstrate de-orbiting – deliberately causing a satellite to re-enter and burn up – in a drive to reduce the amount of hazardous “Space Junk” currently causing problems by taking up orbits that are needed for new spacecraft.
This was followed by the launch in April 2018 of the “RemoveDEBRIS” mission.