Magento 2 – How to Update from 2.0.0 to 2.0.2

jsonmagento2upgrade

The docs here say that you should use the system upgrade utility:
http://devdocs.magento.com/guides/v2.0/comp-mgr/upgrader/upgrade-start.html
and do it from the admin.

I thought that you would be able to update it by changing the composer.json file to "version": "2.0.2", and then just run composer update.

Would this be another way to update or system upgrade utility is the only way of doing it?

Best Answer

Updating/Upgrading to Magento 2.0.2 (via composer)

php bin/magento maintenance:enable
composer require magento/product-community-edition 2.0.2 --no-update
composer update
rm -rf var/di var/generation
php bin/magento cache:flush
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento indexer:reindex
php bin/magento maintenance:disable

After upgrade, check your Magento version with the following command:

php bin/magento --version

Upgrading to Magento 2.3.x

The above commands work fine while upgrading Magento to 2.2.x.

To upgrade to Magento 2.3.x, you need to follow some more steps.

Here's the step-by-step guide to upgrade Magento to 2.3.x:

Enable maintenance mode

php bin/magento maintenance:enable

Specify Magento packages

composer require magento/product-community-edition=2.3.0 --no-update

Specify additional packages

composer require --dev phpunit/phpunit:~6.2.0 friendsofphp/php-cs-fixer:~2.10.1 lusitanian/oauth:~0.8.10 pdepend/pdepend:2.5.2 sebastian/phpcpd:~3.0.0 squizlabs/php_codesniffer:3.2.2 --no-update

Remove unused packages

composer remove --dev sjparkinson/static-review fabpot/php-cs-fixer --no-update

Update autoload

Open composer.json and edit the "autoload": "psr-4" section to include "Zend\\Mvc\\Controller\\": "setup/src/Zend/Mvc/Controller/":

"autoload": {
    "psr-4": {
        "Magento\\Framework\\": "lib/internal/Magento/Framework/",
        "Magento\\Setup\\": "setup/src/Magento/Setup/",
        "Magento\\": "app/code/Magento/",
        "Zend\\Mvc\\Controller\\": "setup/src/Zend/Mvc/Controller/"
    },
    ...
}

Apply updates

composer update

Clean the Magento cache

php bin/magento cache:clean

Manually clear caches and generated content

Clear the var and generated subdirectories:

rm -rf <Magento install dir>/var/cache/*
rm -rf <Magento install dir>/var/page_cache/*
rm -rf <Magento install dir>/generated/code/*

or Single Line

rm -rf var/cache/* generated/code/* var/view_preprocessed/* var/page_cache/* var/report/* pub/static/frontend/* pub/static/adminhtml/* pub/static/_cache/merged/*

If you use a cache storage other than the filesystem, such as Redis or Memcached, you must manually clear the cache there too.

Update the database schema and data

php bin/magento setup:upgrade

Disable maintenance mode

php bin/magento maintenance:disable

Finally, check your Magento version

php bin/magento --version

Read more: https://devdocs.magento.com/guides/v2.3/comp-mgr/cli/cli-upgrade.html

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