[[!meta title="Upgrading a Tails USB stick"]]

Tails includes an automatic mechanism to upgrade a USB stick to the latest version of Tails. When an automatic upgrade is performed, only an *upgrade package* is downloaded. The upgrade package contains all the changes made to Tails since Tails was first installed or was last manually upgraded.

Tails includes an automatic mechanism to upgrade a USB stick to a newer version. In some cases, it is impossible to do an **automatic upgrade** and you might have to do a **manual upgrade**. This page describes both techniques.

In some cases, it is impossible to do an **automatic upgrade** and you might have to do a **manual upgrade**. This page describes both techniques.

<div class="note">

<p>Your Persistent Storage will be preserved by both automatic and
manual upgrades.</p>

</div>

If you use Tails from a DVD, you need to [[burn a new DVD|install/dvd]].

[[!toc levels=2]]

<h1 id="check-version">Checking which version of Tails you are currently running</h1>

To check which version of Tails you are currently running, choose
<span class="menuchoice">
<span class="guimenu">Applications</span>&nbsp;▸
<span class="guisubmenu">Tails</span>&nbsp;▸
<span class="guimenuitem">About Tails</span></span>.

<h1 id="automatic">Automatic upgrade using <i>Tails Upgrader</i></h1>

After starting Tails and connecting to Tor, <span class="application">Tails
Upgrader</span> automatically checks if upgrades are available and then
proposes you to upgrade your USB stick. The upgrades are checked for and downloaded
through Tor.

The advantages of this techniqueautomatic upgrades are the following:

The advantages of automatic upgrades are the following:

You only need a single Tails USB stick. The upgrade is done on the fly from a running Tails. After upgrading, you can restart and use the new version.

- The upgrade is much smaller to download than a full USB image.

- The upgrade is much smaller to download than a full USB image.

The upgrade mechanism includes cryptographic verification of the upgrade. You don't have to verify the USB image yourself anymore.

Requirements:

- A Tails USB stick.

- A Tails USB stick

- An Internet connection.

- An Internet connection

After connecting to Tor, if an upgrade is available, a dialog appears and proposes you to upgrade your USB stick.