Back sometime around end of 2019 or 2020 Kirkland brand updated their protein bars where one notable change was swapping the old problematic "dietary fiber from tapioca starch" for "soluble corn fiber". I can edit the existing entry (https://world.openfoodfacts.org/product/0096619356096/cookies-and-cream-protein-bar-kirkland-signature) but ideally the site can offer functionality to duplicate or link to existing UPC codes a new entry for say "2020 US version" in cases where both old and new products are on the shelves at the same time due to back stock. In general it could also be helpful to see how product ingredients and nutritional characteristics change over time.