Magento 2.0.18 is the final 2.0.x release. After March 2018, Magento 2.0.x will no longer receive security patches, quality fixes, or documentation updates. To maintain your site's performance, security, and PCIPayment Card Industry: Refers to debit and credit cards and their associated businesses. compliance, upgrade to the latest version of Magento.
In this section of the guide, you’ll learn how to set up a store hierarchy, create attributes, and manage the settings used by each store to calculate taxes, and currency rates,
Learn to manage the store hierarchy of websites, stores, and views. Manage taxes, and currency rates, and learn how attributes are used throughout the system. This section also links to a comprehensive configuration reference.