This release is an emergency release to fix critical security vulnerabilities in OpenSSL, a network encryption library used by Tor.

Changes and updates

Included software

• Update the OpenSSL library to 3.5.4, which fixes DSA 6113-1, a set of vulnerabilities that could be critical. Using this set of vulnerabilities, an malicious Tor relay might be able to deanonymize a Tails user.

  We are not aware of these vulnerabilities being exploited in practice.

• Update the Tor client to 0.4.8.22.

• Update Thunderbird to 140.7.0.

Fixed problems

• Fix Gmail authentication in Thunderbird. (#21384)

• Add a spinner when opening the Wi-Fi settings from the Tor Connection assistant. (#18594)

For more details, read our changelog.

Known issues

The homepage of Tor Browser incorrectly says you are still using Tails 7.4, even after you have upgraded to 7.4.1. It also links to the release notes for that older version.

If in doubt, to verify that you are using Tails 7.4.1, choose Apps ▸ Tails ▸ About Tails.

Get Tails 7.4.1

To upgrade your Tails USB stick and keep your Persistent Storage

• Automatic upgrades are available from Tails 7.0 or later to 7.4.1.

• 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 7.4.1 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 7.4.1 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.