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.
Web Setup Wizard
The Web Setup Wizard can be used to install components, modules,and extensions, upgrade your installation, and change the system configuration.
Component Manager lists each component that is currently installed, and can be used to synchronize any extensions you have purchased from Magento Marketplace with your system.
The System Upgrade tool can be used to upgrade your installation of Magento. During the process, it checks your system for readiness, creates a backup, and then upgrades your system.
The System Config tool can be synchronized with your Marketplace account, based on your public and private access keys.