Reinstall the Magento software

A contributing developer reinstalls Magento by updating composer.json to specify the Magento product version and component versions desired and runs composer update.

To reinstall the Magento software as a contributing developer:

  1. Log in to your Magento server as a user with permissions to modify files in the Magento file system (for example, the switch to the Magento file system owner.
  2. Make a backup copy of composer.json in your Magento installation directory:

    cd <your Magento install dir>
    cp composer.json composer.json.bak
    
  3. Open composer.json in a text editor.
  4. Locate the following line:

     "require": {
    	"magento/product-community-edition": "<version>"
    },
    
  5. Replace <version> with the version to which you want to upgrade, where <version> is the product version to use.

    (The product version is in the format 2.0.x) .

  6. Save your changes to composer.json and exit the text editor.
  7. Enter the following command:

    composer update
    

    Wait for dependencies to update.

  8. Install the Magento software.