If you need to update Magento 2 Automatic Related Products by Magefan, please follow the steps below. Note that the update instructions depend on the method Automatic Related Products extension was installed with.

Update using composer (Method 1)

If the Automatic Related Products module was installed via the composer (check if vendor/magefan/module-auto-related-product folder exists), then you need to run these simple CLI commands in Magento 2 directory:

composer remove magefan/module-NAME
composer require magefan/module-NAME ^x.x.x
# replace NAME with:
# auto-related-product - for automatic related products extension
# auto-related-product-plus - for automatic related products plus extension
# 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

Update using FTP  (Method 2)

If the Automatic Related Products module was installed via FTP (check if app/code/Magefan/AutoRelatedProduct folder exists), then follow these commands:

1. Download the latest version of the Automatic Related Products extension archive from magefan.com.

2. Extract archive.

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

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

Install Magento 2 Extension Using FTP

4. 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