en	[[!meta title="Tails 6.4"]]

en	[[!meta date="Tue, 18 Jun 2024 12:34:56 +0000"]]

en	[[!tag announce]]

en	New features

en	Random seed

en	Tails now stores a random seed on the USB stick to strengthen all cryptography.

en	Having a [[!wikipedia cryptographically secure pseudorandom number generator desc="secure random number generator"]] is critical to some of the cryptography used in Tails, for example, in the Persistent Storage, Tor, or HTTPS.

en	This random seed is stored [[outside of the Persistent Storage|contribute/design/random]] so that all users can benefit from stronger cryptography.

en	Changes and updates

en	Switch to using HTTPS addresses instead of an onion addresses for the Debian and Tails APT repositories. This makes the [[Additional Software|doc/persistent_storage/additional_software]] feature more reliable.

en	- Update *Tor Browser* to [13.0.16](https://blog.torproject.org/new-release-tor-browser-13016).

en	- Update the *Tor* client to 0.4.8.12.

en	- Update *Thunderbird* to 115.12.0.

en	Fixed problems

en	Fix more issues when unlocking the Persistent Storage. ([[!tails_ticket 20020]], [[!tails_ticket 20344]], [[!tails_ticket 19913]])

en	Fix connecting to a mobile broadband network on some hardware. ([[!tails_ticket 20291]])

en	Enable again the PDF reader of *Thunderbird* that we disabled in [[Tails 6.3|news/version_6.3]] for security.

en	Improve the error message of *Tails Cloner* when the target USB stick cannot be unmounted because it is being used. ([[!tails_ticket 19253]])

en	Fix the homepage of *Tor Browser* when using the New Identity feature. This removes the error message `Tor Browser blocked your homepage from loading`. ([[!tails_ticket 20381]])

en	Remove the redundant dialog when unlocking a VeraCrypt volume using the *Unlock VeraCrypt Volumes* utility. ([[!tails_ticket 20281]])

en	For more details, read our [[!tails_gitweb debian/changelog desc="changelog"]].

en	Get Tails 6.4

en	To upgrade your Tails USB stick and keep your Persistent Storage

en	- Automatic upgrades are available from Tails 6.0 or later to 6.4.

en	You can [[reduce the size of the download|doc/upgrade#reduce]] of future automatic upgrades by doing a manual upgrade to the latest version.

en	If you cannot do an automatic upgrade or if Tails fails to start after an automatic upgrade, please try to do a [[manual upgrade|doc/upgrade/#manual]].

en	To install Tails 6.4 on a new USB stick

en	Follow our installation instructions:

en	- [[Install from Windows|install/windows]]

en	- [[Install from macOS|install/mac]]

en	- [[Install from Linux|install/linux]]

en	- [[Install from Debian or Ubuntu using the command line and GnuPG|install/expert]]

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

en	To download only

en	If you don't need installation or upgrade instructions, you can download Tails 6.4 directly:

en	- [[For USB sticks (USB image)|install/download]]

en	- [[For DVDs and virtual machines (ISO image)|install/download-iso]]