Parrot Security OS 4.0 released with a number of new tools, updated for packages and bug fixes that released since the last version 3.11. New Docker images will be offered as a core container with only the bare system, a more complete environment with a lot of useful tools, and a container dedicated to the Metasploit environment. LibrereOffice 6 comes default in the images starting from Parrot. It includes the latest version of Firefox version 60.0 and MD Raid Support supported by default, so that parrot can be installed in a software raid.”]
Source: https://gbhackers.com/parrot-security-os-4-0-released/