3. Upgrade the app¶
At this point, you should have a
composer.json file with the correct requirements. Run
composer update to update the dependencies.
If you want to first test how the update proceeds without actually updating any packages, you can try the command with the
composer update --dry-run
If your application consists of several packages that are placed in locations other than the
apply the suggestions from the upgrade documentation to all the packages before you run
If you experience issues during the update, such as a cloning failure, see the Common errors section on the Composer about page.