Walmart is implementing several changes in 2026, including a major update to its grocery delivery service and a redesign of its Great Value private brand. Some stores may have altered hours around the July 3 and 4 holidays, while other changes to the shopping experience are also being introduced, with at least one other retailer, Kroger, making a similar change. The impact of these changes on prices and consumer behavior is being tracked, with some items being compared in cost to the previous year.