This is the 2.3 Beta release version of Magento documentation. Content in this version is subject to change. For additional versions, see Magento Documentation and Resources.
Extension 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.
Module Manager lists the components and modules that are currently installed in your Magento 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 uses the public and private keys from your Marketplace account to synchronize web setup operations.
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