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There are two ways to update PrestaShop:

The automatic upgrade requires only the addition of a script, but might not suit you if you prefer to control everything.

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These five steps are necessary for a successful manual upgrade. Please pay close attention to any all of them, and do not skip any steps.step.

Warning

The update process will affect all files and folders included in the main PrestaShop installation. This includes all the core files used to run PrestaShop, all default modules and the default theme. If you have made any modifications to those files, your changes will be lost.

Done well, the whole update process described within these pages should not take more than half an hour. Do not try to skip a step in order to be done with it faster, as all steps are crucial.

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If you web host won't update your server configuration, then it is time for you to find a better host. Do NOT perform an upgrade unless your server at least meets the system requirements.

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For those upgrading from a version below 1.4.x

Older versions of PrestaShop might not make it as easy to upgrade to the latest version: the code base is quite different, many files have been moved around, many have been created, and others have been deleted. Therefore, the risk is high, when skipping from a very old version to the latest one, to see errors and mistakes aplenty.

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