S SUPEE-10336 SUPEE-10336 patch addresses USPS method name changes needed after September 1, 2017. After this patch, the discontinued “First-Class Mail Parcel” service will change to “First-Class Package Service – Retail.” 4.83 / 5 5 1 / 5 2 / 5 3 / 5 4 / 5 5 / 5 47 votes, 4.83 avg. rating (96% score)