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.json because the following steps will overwrite it:
```
 cd <your Magento install dir>
 cp composer.json composer.json.old
```
Update your local repository to get the latest code:
```
git pull origin develop
```
If git pull origin develop fails, see troubleshooting.
Diff and merge your composer.json.old with composer.json installed with the Magento software.
Enter the following command:
```
composer update
```

Update the Magento database:

php <your Magento install dir>/bin/magento setup:upgrade