This release fixes [many security
vulnerabilities](https://tails.boum.org/security/Numerous_security_holes_in_4.4.1/).
You should upgrade as soon as possible.
# New features
## Secure Boot
Tails now starts on computers with Secure Boot enabled.
If your Mac displays the following error:
Security settings do not allow this Mac to use an external startup disk.
Then you have to [change the settings of the _Startup Security
Utility_](https://tails.boum.org/install/mac/usb/index.en.html#startup-
security) of your Mac to authorize starting from Tails.
# Changes and updates
* Update _Tor Browser_ to
[9.0.9](https://blog.torproject.org/new-release-tor-browser-909).
This update fixes several [vulnerabilities](https://www.mozilla.org/en-
US/security/advisories/mfsa2020%2D13/) in _Firefox_, including [some critical
ones](https://www.mozilla.org/en-US/security/advisories/mfsa2020%2D11/).
Mozilla is aware of targeted attacks in the wild abusing this vulnerability.
# 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 4.5
## To upgrade your Tails USB stick and keep your persistent storage
* Automatic upgrades are available from Tails 4.2 or later to 4.5.
* 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
4.5 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 4.6 is [scheduled](https://tails.boum.org/contribute/calendar/) for May
5.
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=4.5) 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_4.5/index.en.html
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