yumupgrades for production use, this is the repository for you.
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Few simple commands to update Your Magento 2.2.x to latest 2.3.x:
composer require magento/product-community-edition 2.3.4 --no-update composer update rm -rf var/cache/* var/page_cache/* generated/code/* # ensure maintenance is on before running setup:upgrade as this may result in failed upgrade when crons are accessing files php bin/magento setup:upgrade n98-magerun2 cache:flush
Upgrading to a security patch update