Tails 0.21 was released
"Tails, The Amnesic Incognito Live System, version 0.21, is out. All users must upgrade as soon as possible: this release fixes numerous security issues. Notable user-visible changes include: don't grant access to the Tor control port for the desktop user; don't allow the desktop user to directly change persistence settings; install Iceweasel 17.0.10esr with Torbrowser patches; patch Torbutton to make window resizing closer to what the design says; add a persistence preset for printing settings; support running Tails off more types of SD cards; add a KeePassX launcher to the top panel; improve the bug reporting workflow; prefer stronger ciphers when encrypting data with GnuPG; exclude the version string in GnuPG's ASCII armored output....."
The Amnesic Incognito Live System (Tails) is a Debian-based live CD/USB with the goal of providing complete Internet anonymity for the user. The product ships with several Internet applications, including web browser, IRC client, mail client and instant messenger, all pre-configured with security in mind and with all traffic anonymised. To achieve this, Incognito uses the Tor network to make Internet traffic very hard to trace.