That's it Tails Project just released the live OS Tails 4.5, a live operating system running from every computer without leaving no traces on the machine or on the internet.
This particular operating Tails was used by her former employee NSA Edward Snowden to stay hidden on the internet.
This release contains important security updates, so it is advisable to update it immediately.
Tails Project Upgrades and changes
Updated tor browser in version 9.0.9 Fixes several vulnerabilities in Firefox, including some critical ones.
Tails Project Fixed problems
For more information for the improvements brought by the new version, read the latest changelog.