- Introduces new read (rateGroups, conditions) and write (rateGroupsToCreate/Update, freeConditions, currencyCode) GraphQL fields for managing tiered shipping rates in DeliveryProfile.
- Legacy fields (rateProvider, methodConditions, and several input fields) are scheduled for deprecation; merchant‑managed profiles must migrate to the new APIs to avoid unexpected behavior.
- Provides backward‑compatibility support temporarily, but apps writing merchant‑managed profiles must switch to the new write API now.