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.
Magento Enterprise Edition 2.0.4
We are pleased to present Magento Enterprise Edition 2.0.4. This release includes the same security fixes, functional enhancements, and performance improvements as Magento Enterprise Edition 2.0.3, but with improved packaging. To learn more, see the Release Notes in the Magento developer documentation.
You must download and install Magento Enterprise Edition 2.0.4 to ensure that your system has the latest security improvements.