WordPress Speed Up Service | WordPress Website Maintenance Packages woocommerce_add_order_item_meta out of date…. ??, by simon_a6 We have all the latest Plugin updates from WP, WC and so on. Yet we still see an awful lot of these. Is it down to something depreciated in a child theme folder, or is this a common issue at the moment within 4.9 and WC? The “woocommerce_add_order_item_meta” hook uses out of date data structures and function is deprecated since version 3.2.5. Replace with woocommerce_new_order_item. woocommerce_add_order_item_meta out of date…. ??