1. Order.refund.add method has been added to WooCommerce, PrestaShop, and Shopify.
2. Product.variant.add method has been added to PrestaShop.
3. Financial_status parameter has been added to order.list, order.count, order.find methods for Shopify.
4. The response time of product.count, product.list, product.info, product.find methods for Magento has been significantly reduced.