How to update Magento 2.1.7 to Magento 2.2 ? Is it possible to upgrade?

Question

I wanted to know is it possible to update Magento from 2.1.7 to 2.2 ? Or what is a solution to update all Magento 2.1.7 stores to Magento 2.2 ? If we will update it then what are the challenges for that we have to be prepared?

Please let me know is there any solution for this or not.

Answer 1

Below is how I upgraded from 2.1.9 to 2.2.0 :

bin/magento maintenance:enable
composer require magento/product-community-edition 2.2.0 --no-update
composer update
rm -rf var/cache/*
rm -rf var/page_cache/*
rm -rf var/generation/*
chmod +x bin/magento
bin/magento setup:upgrade
bin/magento maintenance:disable

For further upgrades, change the version number:

composer require magento/product-community-edition 2.2.4 --no-update

Answer 2

I had problems with some custom modules. Check for updates from Magento 2.2 for custom modules used on:

Magento\Framework\Mail\TransportInterface - add new method getMessage

(Modules Smtp, Mail etc)

Magento\Rule\Model\AbstractModel - serialization replaced by json

(Modules used Rule)

Answer 3

Upgrade Magento 2.1.7 to Magento 2.2.2

Edit composer.json

"version": "2.1.7" replace with "version": "2.2.2"
"magento/product-community-edition": "2.1.7" replace with "magento/product-community-edition": "2.2.2"
composer update
rm -rf var/di/* var/generation/* var/cache/* var/log/* var/page_cache/* var/session/* var/view_preprocessed/* pub/static/*
php bin/magento setup:upgrade

During upgrade some error may our which need to be fixed.Then run following below commands after successful upgrade. It will time taking step.

php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy
php bin/magento cache:clean
php bin/magento cache:flush
php bin/magento indexer:reindex
chmod -R 777 generated
chmod -R 777 var/cache
chmod -R 777 pub

Source Blog

Answer 4

Yes, it is possible (why it shouldn't be possible in the first place?) Take care of extensions, because it is a Major version change and some of them may need to be updated/ removed.

Also please use documentation. All info is located here.
http://devdocs.magento.com/guides/v2.1/comp-mgr/cli/cli-upgrade.html

Answer 5

                            STEPS TO UPGRADE MAGENTO 2.1.x TO 2.2.3

1. bin/magento maintenance:enable   -- Enable Maintance mode

2. Update composer.json on root
      remove all "require" and add the following
        "require": {
                    "magento/product-community-edition": "2.2.3",
                    "composer/composer": "@alpha"
                    }

3. run "composer update"

4. clear root/var/cache,
                /page_cache,
                /generation,
        root/generation

5. sudo chmod -R 777 /var/www/html/your_project_name/ give full permission

6. run "bin/magento setup:upgrade"

7. run "bin/magento maintenance:disable"


In between these we may face 2 errors :
    a. create a user with name "teachtech" or the name of user it is asking in error with full    permission
    b. connection code error code be found :
        add connection instance as - 

            public function __construct(
                            ...
                            \Magento\Framework\DB\Adapter\AdapterInterface  $connection = null,
                            ...
                        ) {
                            ...
                        }

            where it is showing error



For further upgrades, change the version number:

composer require magento/product-community-edition 2.2.x --no-update

Feel free to ask question