Debian 8.6 is a GNU Linux-based operating system which is the oldest and most stable version of Linux. This free download is a standalone ISO image installer of Debian OSes for x86-64 architecture. Debian 8.6 Overview Linux is a very popular open source operating system with a bundle of flavors. Debian 8.6 is a powerful Linux release which is built from scratch by the experienced hackers and developers to provide ultimate security features. Read More …