The generateVariantsForProduct mutation has been removed
The reindex mutation now returns a JobInfo type, which has an id that can then be polled via the new job query as to its progress and status.
This change allows custom fields to be defined on the OrderLine entity. When they are, then the "addItemToOrder" mutation will accept a third argument - "customFields", which matches the fields specified in the config. Additionally, a couple of mutations have been renamed: "removeItemFromOrder" -> "removeOrderLine", "adjustItemQuantity" -> "adjustOrderLine" and their "orderItemId" argument has been renamed to "orderLineId".