Version 1.1 of the Register API is now available on iOS as of Square Register version 4.50.
Version 1.1 includes:
Support for split tender transactions.
CASHtender type to support cash transactions.
OTHERtender type to support other tender transactions.
SQUARE_GIFT_CARDtender type to support Square Prepaid Gift Card transactions.
For more information:
See Register API Overview for an overview of how the Register API works.
See Using the Register API for iOS to learn how to add Register API functionality to your iOS app.
See the SquarePointOfSaleSDK-iOS repository for the easiest solution to add Register API to your iOS app.