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.
Websites, Stores & Views
A single installation of Magento Commerce 2.0 can include multiple websites, stores, and views, all managed from the same AdminThe password-protected back office of your store where orders, catalog, content, and configurations are managed.. The scope determines which website, store, or view is affected by a configuration setting.
Magento 2 installations begin with a single website called “Main Website.” You can also set up multiple websites, each with its own domainThe address of a website on the web; what the customer types in their browser address bar to access the store..
A single website can have multiple stores, each with a separate main menu. Each store can have a different product selection and appearance, but are managed from the same Admin.
Store views are usually used to make the store available in different languages. Customers can use the language chooser in the header to change the store view.