Tails Project just released the new live testing OS Tails 2.12, a live operating system that runs on every computer and leaves no traces either on the machine or on the Internet.
This particular functional Tails was used by former NSA employee Edward Snowden to remain hidden on the internet.
The new version incorporates some important new features and changes, including the upgrading to the 4.9 kernel.
The new version also contains many other useful improvements, such as firewall and kernel hardening, and support for other languages except of English.
Download ISO before official release
tails-i386-2.11.iso
tails-i386-2.11.iso.sig