Tails includes an automatic mechanism to upgrade a USB stick to the latest version of Tails. When an automatic upgradeis 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.
To check which version of Tailsyou are currently running, choose <span class="menuchoice"> <span class="guimenu">Applications</span> ▸ <span class="guisubmenu">Tails</span> ▸ <span class="guimenuitem">About Tails</span></span>.
<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>
You want to upgrade by cloning from another TailsUSB stick which is already up-to-date, for example, when working offline or with a slow Internet connection.
After connecting to Tor, a dialog informs you if you have to upgrade your USB stick using <span class="application">Tails Cloner</span> to a newer version of Tails.