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This topic discusses how a contributing developer can update Adobe Commerce without reinstalling it. If you are not a contributing developer, see Perform an upgrade.
To upgrade if you are a contributing developer:
Log in to your server.
Switch to the file system owner.
Change to the directory where you cloned the application. For example,
cd /var/www/magento2
Save any changes you made to the composer.json file because the next steps overwrite it.
composer.json
Create a backup of your composer.json file.
cp composer.json composer.json.old
Update your local repository to get the latest code:
git pull origin develop
Diff and merge your composer.json.old file with the composer.json file.
composer.json.old
Resolve dependencies and write exact versions to the composer.lock file.
composer.lock
composer update
Update the database:
bin/magento setup:upgrade
Clean the cache:
bin/magento cache:clean