Kali Linux has emerged in recent years to be among the most popular security-focused Linux distributions. Originally known as Backtrack Linux, Kali Linux was renamed and rebuilt in March 2013 with the new name. While Kali Linux has always had a regular update cycle, with the new 2.0 release that debuted on Aug. 11, that cycle will now accelerate. Kali Linux 2.0 now features what is known as a “rolling release” distribution, meaning it will provide a continuous stream of regular updates rather than requiring users to wait a period of time for a milestone update. The continuous Linux updates are pulled from the upstream Debian testing distribution. Not only is the base Linux system continuously updated, Kali Linux 2.0 now has a new upstream version checking system that will provide users with notifications about new tool updates. While Linux is the operating system, the true power of Kali Linux has always been its expansive list of security tools. Security tools in Kali Linux 2.0 fall under several categories, including information gathering, vulnerability analysis, Web application analysis, database assessment, password attacks, wireless attacks, reverse engineering, exploitation tools, sniffing and spoofing, forensics and reporting tools. In this slide show, eWEEK takes a look at some of the features of the Kali Linux 2.0 release.