Based on the Debian GNU/Linux 10 “Buster” operating system, Tails 4.0 is here with up-to-date components to keep your online identity hidden from potential attackers. These include the latest TOR Browser 9.0 anonymous web browser, Tor 0.4.1.6 anonymous network client and server, OnionShare 1.3.2 anonymous file sharing tool, MAT 0.9.0 metadata removal tool, and KeePassXC password manager. Tails 4.0 is also powered by the latest Linux 5.3 kernel series, shipping with Linux kernel 5.3.2 in the live ISO image, which brings better support for newer hardware and many other improvements. On top of that, Tails 4.0 ships with GnuPG 2.2.12, Enigmail 2.0.12, Electrum 3.3.8, Git 2.20.1, LibreOffice 6.1.5, InkScape 0.92.4, GIMP 2.10.8, and Audacity 2.2.2.