This release fixes numerous security issues. All users must upgrade as soon as possible. Changes New features Icedove a rebranded version of Mozilla Thunderbird is now the official email client in Tails, replacing Claws Mail. Claws Mail will be removed from Tails in version 2.0 (2016-01-26). If you have been using Claws Mail and activated its persistence feature, follow our instructions to migrate your data to Icedove. Upgrades and changes Electrum from 1.9.8 to 2.5.4. Now Electrum should work again in Tails. Tor Browser to 5.0.5. Tor to 0.2.7.6. I2P to 0.9.23. Icedove from 31.8 to 38.4. Enigmail from 1.7.2 to 1.8.2. Known issues Incremental upgrades are much slower to apply than before. You can expect it to take around an hour after the upgrade has been downloaded. See 10757 for details. If your system clock is incorrect, then bridge mode will not work. One way to work around this is to correct the system before connecting to the network, which will require setting an administration password. See the current list of known issues. Download or upgrade Go to the download or upgrade page. If your Tails does not boot after an automatic upgrade, please upgrade your Tails manually. What's coming up? The next Tails release is scheduled for January 26. 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! Continue reading...