Parrot Security OS is a Debian-based distribution aimed at cloud oriented pentesting. It has a number of security tools for penetration testing, information gathering, vulnerability assessment, anonymity, cryptography, and more. Parrot joined the list February 2, 2016 when the current version was 2.1 "Murdock". Parrot 3.11 was released January 28, 2018. Parrot 4.0 was released May 21, 2018.