2022-01-21 Changelog

In-App Payments SDK
Reader SDK
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Version summary

  • Square Version: 1.5.5
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In-App Payments SDK: Android and iOS 1.5.5


In-App Payment SDK version 1.5.5 for Android and iOS includes an important update that mitigates the risk of SCA (Strong Customer Authentication) declining on payments made with American Express after December 18, 2021.

If you are using In-App Payment SDK version 1.5.4 or earlier, you must upgrade to 1.5.5 so that the SDK can perform SCA on payments made with American Express.

  • In-App Payments SDK for Android 1.5.5
  • In-App Payments SDK for iOS 1.5.5
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Android Reader SDK: Android 1.5.5

Android Reader SDK version 1.5.5 has been updated with various bug fixes and improvements. The bug fix addresses an issue related to external storage permissions for Android API version 30 (Android 11) and later.