How to upgrade Magento 2 to the latest version ( Command Line)

Magento latest release always focus on enhancing the security, improving performance and fixing bugs. With the help of this blog you can do the Magento 2 Upgrade.

Please check the system requirements for your latest Magento version here.

https://experienceleague.adobe.com/docs/commerce-operations/installation-guide/system-requirements.html

Note: It is recommended to take the backup of the code and database if you are planning to upgrade your live site.

In the following steps we will upgrade from Magento 2.3.5-p2 to Magento 2.4.5.

Step 1 -> Change your composer version to the compatible version of latest Magento version.

composer -vvv about

Step 2 -> Take a backup of the composer.json

cp composer.json composer.json.bak

Step 3 -> Put your site into maintanance mode.

php bin/magento maintenance:enable

Step 4 -> Install the Composer update plugin

composer require magento/composer-root-update-plugin=~2.0 --no-update

Step 5 -> Update Magento version in composer.json file using below command. You can type the any required Magento version.

composer require  magento/product-community-edition=2.4.5 --no-update

Step 6 -> This step keeps you safe from the dependency version issues. You have to update “require-dev” key in root composer.json. You can see this in the magento composer.json file on github.

Following are the magento 2.4.4 and 2.4.5 with their compatible dependencies.

https://github.com/magento/magento2/blob/2.4.4/composer.json#L113

https://github.com/magento/magento2/blob/2.4.5/composer.json#L113

Here we are using the require-dev of Magento 2.4.5.

"require-dev": {
    "allure-framework/allure-phpunit": "~1.5.0",
    "dealerdirect/phpcodesniffer-composer-installer": "^0.7.2",
    "friendsofphp/php-cs-fixer": "~3.4.0",
    "lusitanian/oauth": "~0.8.10",
    "magento/magento-coding-standard": "*",
    "magento/magento2-functional-testing-framework": "^3.7",
    "pdepend/pdepend": "~2.10.0",
    "phpmd/phpmd": "^2.12.0",
    "phpstan/phpstan": "^1.6.8",
    "phpunit/phpunit": "~9.5.20",
    "sebastian/phpcpd": "^6.0.3",
    "squizlabs/php_codesniffer": "~3.6.0",
    "symfony/finder": "^5.2"
},

Step 7 -> Now change php version to the compatible version with magento 2.4.5.

sudo a2dismod php7.3
sudo a2enmod php8.1
sudo update-alternatives --set php /usr/bin/php8.1
sudo /etc/init.d/apache2 restart
php --version

Step 8 -> Update dependencies using the following command.

composer update

Step 9 -> Execute the following commands.

rm -rf var/cache/*
rm -rf var/page_cache/*
rm -rf generated/code/*
bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy -f
php bin/magento c:f

Step 10 -> Check base url in core_config_data and update with adding pub/ after base url.
For example https://devmage.com/m235p2 to https://devmage.com/m235p2/pub

php bin/magento c:f

Step 11 -> Disable the maintenance mode

php bin/magento maintenance:disable

Hope this helps, Thanks 🙂

You can also explore more about Magento 2 Upgrade Services to update your e-commerce website with the latest Magento version or migrate from another e-commerce platform.