Magento 2.1.18 is the final 2.1.x release. After June 2019, Magento 2.1.x will no longer receive security patches, quality fixes, or documentation updates.
To maintain your site's performance, security, and PCI compliance, upgrade to the latest version of Magento.

Set up the updater

The Magento 2 Updater enables you to use the Web Setup Wizard to manage the Magento system components. The updater uses the cron jobs update/cron.php and bin/magento setup:cron:run. Learn more about the cron setup in Configure the Magento application.

Clone the updater

Clone the Magento 2 updater to <magento_root>/update.

Example:

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cd ~/magento2
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git clone git@github.com:magento/magento2-updater.git update

Install the updater

The Magento 2 updater contains the composer.json with dependencies that it requires to process. Install the dependencies using Composer:

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cd update
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composer install

Next step

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