The reason is because OpenCV 3.2 is the version shipped in Ubuntu [Bionic](https://packages.ubuntu.com/bionic/libopencv-dev) (which we expect to be the most used OS platform for Melodic). Instead of trying to compile newer versions for all platforms, which has given us some pain in the past, we decided to standardize on the version in Bionic and just bring Debian Stretch up to that version. --- [Visit Topic](https://discourse.ros.org/t/opencv-3-2-in-debian-stretch/4627/3) 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: