Hello In this wiki i will show you how to upgrade magento to (CC 2.3.3) version by Command line
Please follow these steps
php composer.phar require magento/product-community-edition 2.3.1 --no-update composer update // Or (php composer.phar update, you can download the composer.phar at the end of this wiki ) php bin/magento setup:upgrade php bin/magento cache:clean php bin/magento cache:flush php bin/magento setup:di:compile php bin/magento indexer:reindex
File : composer.phar