If you need to update PWA Add-On for Magento 2 Alternate Hreflang by Magefan, please follow the steps below.

Note: the updating instructions depend on the method the PWA Add-On for Alternate Hreflang Tags was installed with.

Update using composer

If the PWA Add-On for Alternate Hreflang Tags was installed via the composer (check if vendor/magefan/module-alternate-hreflang-graph-ql folder exists), then you need to run these simple CLI commands in Magento 2 directory:

composer remove magefan/module-alternate-hreflang-graph-ql
composer require magefan/module-alternate-hreflang-graph-ql ^x.x.x
# replace x.x.x with the version you want to use
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy

Note: if you don't want your website to be down during deployment, try these zero downtime deployment commands for Magento 2.

Update using archive and FTP

If the PWA Add-On for Alternate Hreflang Tags was installed via FTP (check if app/code/Magefan/AlternateHreflangGraphQlfolder exists), then follow these commands:

1. Download the latest version of PWA Add-On for Alternate Hreflang Tags archive from magefan.com.

2. Extract archive.

3. Make the backup copy of the app/code/Magefan/AlternateHreflangGraphQl folder on your server and then remove it.

4. Using FTP, copy app folder from the archive to your Magento 2 Directory. 

Update Magento 2 extension via FTP

5. Run update CLI commands in Magento 2 directory:

php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy