In the **About Tails** utility, you can click **Check for Upgrades** to check whether a new version of Tailsis available. This check is also done automatically every time you start Tailsand connect to the Tor network.
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The advantages of this techniqueautomatic upgrades are the following:
- If an error occurs while installing the upgrade, *Tails Upgrader* asks you to visit:
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If another error occur while upgrading or if your Tails USB stick fails to start after an automatic upgrade, see below how towe recommend that you do a manual upgrade instead. See below.
If another error occur while upgrading or if your TailsUSB stick fails to start after an automatic upgrade, we recommend that you do a manual upgrade instead. See below.
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The automatic upgrade is impossible for technical reasons (not enough memory, not enough free space on the USB stick, etc.and so on). For example, if you get the following error message:
The automatic upgradeis impossible for technical reasons (not enough memory, not enough free space on the USB stick, and so on). For example, if you get the following error message:
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there is not enough free space on the Tails system partition
<p>You can also do a manual upgrade to reduce the size of future automatic upgrades.</p>
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<p>When doing automatic upgrades, the size of the download increases over time. If you do a manual upgrade, the size of future automatic upgrades will become smaller again.</p>
<p>When doing automatic upgrades, the size of the download increases over time. If you do a manual upgrade, the size of future automatic upgrades will become smaller again.</p>
<p>We estimated that, to actually reduce the overall download size, it's only worth it to do 1 manual upgrade every year if you apply all upgrades of Tails.</p>
