BackBox Linux 5 has been in development for too long, since even the release of BackBox Linux 4.7 in early December last year, but it’s finally here, and it brings with it a significant number of improvements, up-to-date components, as well as several under-the-hood optimizations and tweaks. Being based on the Ubuntu 16.04.2 LTS (Xenial Xerus) operating system, BackBox Linux 5 is powered by its Linux 4.8 kernel and comes with all the security and software updates, as well as the newer graphics stack and other performance improvements that Canonical added in the second point release of Ubuntu 16.04 LTS.