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Release Notes for Tap to Pay on iPhone Solution

These release notes are organized by release name and version, from newest to oldest.
Each release note includes these details:
  • Name of release
  • Type of release: app or SDK
  • Version number
  • Operating system: Android or iOS
  • Release date: MM-DD-YYYY format
These are the types of release notes published:
  • General information
  • Improvements
  • New features
  • Fixed issues
  • Updated requirements
  • Security updates
  • Hot fixes

SDK Version 3.8.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.8.0 for iOS. The release date is 09-16-2026.

New Features

Added support for these features:
  • Perform account verification requests.
  • Include payment facilitator details when performing a transaction.
  • Include tax details when performing a transaction.
  • Include installment details for the Latin America and Caribbean (LAC) region when performing a transaction.
  • Configure the maximum amount allowed for an offline transaction and the maximum amount allowed for an offline-transaction batch submitted for authorization.
  • Activate a device by scanning a QR code.

Improvements

  • Added support for additional languages, including right-to-left (RTL) layout support for the Arabic language.
  • Added the ability to capture a signature for offline transactions.
  • Applied general improvements to the UI.

Fixed Issues

  • Fixed the issue that caused American Express masked card numbers to display incorrectly on the Summary screen.
  • Fixed the issue that caused a "Device already exists" error message to appear when re-enrolling a device with a previously registered serial number.
  • Fixed the issue where tapping Back navigation from the Serial Number Entry screen canceled device activation instead of returning to the previous screen.
  • Fixed some localization issues.

SDK Version 3.7.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.7.0 for iOS. The release date is 05-28-2026.

General Information

  • For submitting offline transactions, replaced
    startBatchUpload()
     method with
    syncSession()
     method.
  • Updated device activation methods.

New Features

Added support for Spanish (Spain) and Spanish (Mexico) language variants.

Improvements

  • A device can now be activated without manually entering the activation code.
  • Reactivating a device no longer requires uninstalling the app first.
  • Improved error messages are shown during transactions.
  • Applied general improvements to the UI.

SDK Version 3.6.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.6.0 for iOS. The release date is 04-10-2026.

General Information

The SDK 3.6.0 release introduces architectural changes that replace several core protocols and methods. Before you build with SDK 3.6.0, update integrations built with earlier SDK versions. Before upgrading from SDK 3.5.0, review these updated or new topics in the integration guide:
  • Creating an SDK instance: The
    mposUI
     instance was replaced with a
    MposUIReader
     instance.
  • Credentials: The
    environment
     field and
    Credentials.Environment
     type were removed. Use the standalone
    MposEnvironment
     enum.
  • Device activation: The device enrollment methods were replaced with new activation methods.
  • Payment services: The payment service transaction methods are now accessed by using the
    MposUIOnline
     service.
  • Stand-alone credit: The return type for a stand-alone credit transaction was changed from
    Result<Transaction, MposUIError>
     to
    RefundTransactionResult
    .
For more information about these topics, see Recent Revisions to This Document.

New Features

  • Added support for Store & Forward transactions.
  • Added support for activating a device using an activation code instead of credentials.
For more information about these topics, seeRecent Revisions to This Document.

Improvements

Applied general improvements to the UI.

SDK Version 3.5.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.5.0 for iOS. The release date is 02-26-2026.

New Features

  • Added a Device Selection screen that enables merchants to enroll a previously enrolled device without manually entering the serial number.
  • Added support for re-enrolling a previously enrolled device by providing the stored serial number to the SDK.

Improvements

  • Added the ability to configure the enrollment process to show a list of previously enrolled devices or to enable the merchant to enter the device serial number manually.
  • Added the ability to configure the enrollment process to show or hide the serial number confirmation screen after successful enrollment.
  • Improved the ability to debug your application during development.
  • Improved error messages that can appear during transaction processing.
  • Applied general improvements to the UI.

Archive of Release Notes

This archive of release notes for the Tap to Pay on iPhone Solution is organized by release name and version, from newest to oldest. For information about current releases, see Release Notes for Tap to Pay on iPhone Solution.
Each release note includes these details:
  • Name of release
  • Type of release: app or SDK
  • Version number
  • Operating system: Android or iOS
  • Release date: MM-DD-YYYY format
These are the types of release notes published:
  • General information
  • Improvements
  • New features
  • Fixed issues
  • Updated requirements
  • Security updates
  • Hot fixes

SDK Version 3.3.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.3.0 for iOS. The release date is 10-31-2025.

Improvements

  • Improved the error messages that can appear during transaction processing.
  • Applied general improvements to UI.

Fixed Issues

  • Fixed the issue that occasionally caused the Signature screen to be shown twice.
  • Fixed the issue that caused the Increment button to be shown on the Summary screen after the transaction is fully refunded.

SDK Version 3.2.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.2.0 for iOS. The release date is 10-06-2025.

New Features

Added tip amount and total amount as tipping options.

SDK Version 3.1.0 Release Notes

These release notes are for the Tap to Pay on iPhone SDK, version 3.1.0 for iOS. The release date is 08-18-2025.

New Features

Added the ability to look up transaction details without showing the Summary screen.

Fixed Issues

Applied general fixes to UI.
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