You must install and configure Elasticsearch 7.6.x before upgrading to Adobe Commerce or Magento Open Source 2.4.0. See Check the catalog search engine for details.

Update the Commerce application

This topic discusses how a contributing developer can update Magento without reinstalling it. To perform an upgrade if you are not a contributing developer, see Updating the Magento application and components.

To update the Magento software if you are a contributing developer:

  1. Log in to your Magento server as, or switch to, the file system owner.
  2. Save any changes you made to composer.json because the following steps will overwrite it:

    cd <magento_root>
    cp composer.json composer.json.old
  3. Update your local repository to get the latest code:

    git pull origin develop

    If git pull origin develop fails, see troubleshooting.

  4. Diff and merge your composer.json.old with composer.json installed with the Magento software.
  5. Enter the following command:

    composer update
  6. Update the Magento database:

    <magento_root>/bin/magento setup:upgrade
  7. Clean the cache:

    bin/magento cache:clean