Tails 3.0 is a major update that’s based entirely on the repositories of the soon-to-be-released Debian GNU/Linux 9 “Stretch” operating system. It’s also the first version of the operating system to be launched approximately at the same time as a new major release of Debian GNU/Linux. Prominent new features of Tails 3.0 include an entirely new startup and shutdown experience, providing users with a revamped Tails Greeter dialog during first boot, which lets them configure various important areas of the operating system before they’re ready to use it, as well as freed memory poisoning feature during shutdowns.