This release is an emergency release to fix critical security vulnerabilities in the Linux kernel.

Changes and updates

• Update the Linux kernel to 6.12.69, which fixes DSA 6126-1, multiple security vulnerabilities that could allow an application in Tails to gain administration privileges.

For example, if an attacker was able to exploit other unknown security vulnerabilities in an application included in Tails, they might then use DSA 6126-1 to take full control of your Tails and deanonymize you.

This attack is very unlikely, but could be performed by a strong attacker, such as a government or a hacking firm. We are not aware of this attack being used in practice.

• Update Thunderbird to 140.7.1.

Fixed problems

• Fix opening the Wi-Fi settings from the Tor Connection assistant. (#18587)

• Fix reopening Electrum when it was not closed cleanly. (#21390)

• Fix applying the language saved to the USB stick in the Welcome Screen. (#21383)

For more details, read our changelog.

Get Tails 7.4.2

To upgrade your Tails USB stick and keep your Persistent Storage

• Automatic upgrades are available from Tails 7.0 or later to 7.4.2.

• If you cannot do an automatic upgrade or if Tails fails to start after an automatic upgrade, please try to do a manual upgrade.

To install Tails 7.4.2 on a new USB stick

Follow our installation instructions:

• Install from Windows

• Install from macOS

• Install from Linux

• Install from Debian or Ubuntu using the command line and GnuPG

The Persistent Storage on the USB stick will be lost if you install instead of upgrading.

To download only

If you don't need installation or upgrade instructions, you can download Tails 7.4.2 directly:

• For USB sticks (USB image)

• For DVDs and virtual machines (ISO image)

Support and feedback

For support and feedback, visit the Support section on the Tails website.