This release is an emergency release to fix security vulnerabilities in _Tor
Browser_ and _Tor_.

You should upgrade as soon as possible.

## Included software

  * Update _Tor Browser_ to 
[9.0.7](https://blog.torproject.org/new-release-tor-browser-907), which 
prevents [JavaScript from sometimes being enabled in the _Safest_ security 
level of Tor 
Browser](https://tails.boum.org/news/javascript_sometimes_enabled_in_safest/index.en.html).

  * Update _Tor_ to 
[0.4.2.7](https://blog.torproject.org/new-releases-03510-0419-0427), which 
fixes TROVE-2020-002, a major denial-of-service vulnerability that affects both 
Tor relays and clients. Using this vulnerability, an attacker could cause Tor 
to consume a huge amount of CPU, disrupting its operations for several seconds 
or minutes, and create patterns that could aid in traffic analysis.

  * Update _Thunderbird_ to 
[68.6.0](https://www.thunderbird.net/en-US/thunderbird/68.6.0/releasenotes/).

# Known issues

None specific to this release.

See the list of [long-standing
issues](https://tails.boum.org/support/known_issues/index.en.html).

# Get Tails 4.4.1

## To upgrade your Tails USB stick and keep your persistent storage

  * Automatic upgrades are available from 4.2, 4.2.2, 4.3, and 4.4 to 4.4.1.

  * If you cannot do an automatic upgrade or if Tails fails to start after an 
automatic upgrade, please try to do a [manual 
upgrade](https://tails.boum.org/doc/upgrade/index.en.html#manual).

## To install Tails on a new USB stick

Follow our installation instructions:

  * [Install from Windows](https://tails.boum.org/install/win/index.en.html)
  * [Install from macOS](https://tails.boum.org/install/mac/index.en.html)
  * [Install from Linux](https://tails.boum.org/install/linux/index.en.html)

All the data on this USB stick will be lost.

## To download only

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

  * [For USB sticks (USB 
image)](https://tails.boum.org/install/download/index.en.html)
  * [For DVDs and virtual machines (ISO 
image)](https://tails.boum.org/install/download-iso/index.en.html)

# What's coming up?

Tails 4.5 is [scheduled](https://tails.boum.org/contribute/calendar/) for
April 7.

Have a look at our [roadmap](https://tails.boum.org/contribute/roadmap) to see
where we are heading to.

We need your help and there are many ways to [contribute to
Tails](https://tails.boum.org/contribute/index.en.html)
([donating](https://tails.boum.org/donate/?r=4.4.1) is only one of them). Come
[talk to us](https://tails.boum.org/about/contact/index.en.html#tails-dev)!



URL: https://tails.boum.org/news/version_4.4.1/index.en.html
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