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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>

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.