Exit Zen
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[[!meta title="Upgrading a Tails USB stick"]]
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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.
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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>.
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<h1 id="automatic">Automatic upgrade using <i>Tails Upgrader</i></h1>
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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.
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The advantages of automatic upgrades are the following:
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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.
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- The upgrade is much smaller to download than a full USB image.
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The upgrade mechanism includes cryptographic verification of the upgrade. You don't have to verify the USB image yourself anymore.
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- An Internet connection
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After connecting to Tor, if an upgrade is available, a dialog appears and proposes you to upgrade your USB stick.
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<p>If you cannot upgrade at startup (for example, if you have no network
connection by then), you can start <span class="application">Tails
Upgrader</span> later by opening a terminal and executing the following
command:</p>
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If an error occurs during the upgrade, the assistant proposes you to read one of the following pages:
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[[file:///usr/share/doc/tails/website/doc/upgrade/error/check.en.html|upgrade/error/check]]
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[[file:///usr/share/doc/tails/website/doc/upgrade/error/download.en.html|upgrade/error/download]]
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[[file:///usr/share/doc/tails/website/doc/upgrade/error/install.en.html|upgrade/error/install]]
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[[!img system.png link="no" class="svg" alt=""]]
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[[!img incremental.png link="no" class="svg" alt=""]]
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[[!img manual.png link="no" class="svg" alt=""]]
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<h1 id="manual">Manual upgrade using <i>Tails Cloner</i></h1>
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