Update the Magento application
This topic discusses how a contributing developer can update the Magento application without reinstalling it. To perform an upgrade if you’re not a contributing developer, see Updating the Magento application and components.
To update the Magento software if you’re a contributing developer:
- Log in to your Magento server as, or switch to, the Magento file system owner.
 - 
    
Save any changes you made to
composer.jsonbecause the following steps will overwrite it:1
cd <magento_root>1
cp composer.json composer.json.old - 
    
Update your local repository to get the latest code:
1
git pull origin develop
If
git pull origin developfails, see troubleshooting. - Diff and merge your 
composer.json.oldwithcomposer.jsoninstalled with the Magento software. - 
    
Enter the following command:
1
composer update
 - 
    
Update the Magento database:
1
<magento_root>/bin/magento setup:upgrade
 - 
    
Clean the cache:
1
bin/magento cache:clean