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

Magento 2’s latest release always focuses on enhancing security, improving performance, and fixing bugs. This blog can help you with Magento 2 Upgrade services.

Please check the system requirements for the Magento 2 version

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

We will upgrade to the latest Magento in the following steps.

Step 1: Change your composer version to the compatible version of the latest Magento 2 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 maintenance 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 the composer.json file using the below command. You can type any required Magento version.

composer require magento/product-community-edition=2.4.8 --no-update

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

Check the Magento 2.4.8 required compatible dependencies.

Here we are using the require-dev of Magento 2.4.8.

"require-dev": {
    "magento/magento-allure-phpunit": "^3.0",
    "dealerdirect/phpcodesniffer-composer-installer": "^0.7 || ^1.0",
    "dg/bypass-finals": "^1.4",
    "friendsofphp/php-cs-fixer": "^3.22",
    "carlos-mg89/oauth": "^0.8.17",
    "magento/magento-coding-standard": "*",
    "magento/magento2-functional-testing-framework": "^5.0",
    "pdepend/pdepend": "3.x-dev",
    "phpmd/phpmd": "3.x-dev",
    "phpstan/phpstan": "^1.9",
    "phpunit/phpunit": "^10.5",
    "symfony/finder": "^6.4"
}

Step 7: Now, change the PHP version to the compatible version with Magento 2.4.8.

sudo a2dismod php7.3
sudo a2enmod php8.3
sudo update-alternatives --set php /usr/bin/php8.3
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 the base URL in core_config_data and update it by adding pub/ after the base URL.

php bin/magento c:f

Step 11: Disable the maintenance mode

php bin/magento maintenance:disable

Hope this helps, Thanks 🙂

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