2025-06-26 00:00:00 In order to continue taking payments after Dec. 31, 2021, update the app. Then, if prompted, update the software on your card reader. The required software versions are as follows: Chip and Swipe: 1.00.02.29.4e03fbac Contactless, Chip and Swipe: 1.00.02.25.c0a6ddda