This release fixes known security vulnerabilities. You should upgrade as soon as possible.

New features

  • Add a Don't Show Again button to the security notification when starting Tails in a virtual machine.

Changes and updates

  • Update Tor Browser to 10.0.9.

  • Update Thunderbird to 78.6.0.

  • Update Linux to 5.9.15. This should improve the support for newer hardware (graphics, Wi-Fi, etc.).

Fixed problems

  • Fix support for the Ledger hardware wallets in Electrum. (#18080)

  • Fix sharing mobile data, also called USB tethering, on iOS 14 or later. (#18097)

  • Clarify the error message when starting from a USB stick that is too small. (#18073)

For more details, read our changelog.

Known issues

  • Automatic upgrades are broken from Tails 4.14 and earlier.

    To upgrade from Tails 4.14 or earlier, you can either:

    • Do a manual upgrade.

    • Fix the automatic upgrade from a terminal. To do so:

      1. Start Tails and set up an administration password.

      2. In a terminal, execute the following command:

        torsocks curl --silent https://gitlab.tails.boum.org/tails/tails/-/raw/master/config/chroot_local-includes/usr/share/tails/certs/lets-encrypt-r3.pem \
        | sudo tee --append /usr/local/etc/ssl/certs/tails.boum.org-CA.pem \
        && systemctl --user restart tails-upgrade-frontend
        

        This command is a single command that wraps across several lines. Copy and paste the entire block at once and make sure that it executes as a single command.

      3. Approximately 30 seconds later, you should be prompted to upgrade to the latest version of Tails. If no prompt appear, you might already be running the latest version of Tails.

See the list of long-standing issues.

Get Tails 4.15

To upgrade your Tails USB stick and keep your persistent storage

  • Automatic upgrades are broken from Tails 4.14 and earlier. See the known issue above.

  • 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 on a new USB stick

Follow our installation instructions:

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 4.15 directly:

What's coming up?

Tails 4.16 is scheduled for February 23.

Have a look at our roadmap to see where we are heading to.

We need your help and there are many ways to contribute to Tails (donating is only one of them). Come talk to us!