EPAS Client Library Release Notes
Version: 1.5.2
Release Date: 2026.10.08
Customer Impact Statement
- CNA2 support will become available for use once the corresponding feature is released in the Payment Application.
Features
Enhanced Card Number Alias (CNA2) Support
- Added support for retrieving and supplying the new Card Number Alias (CNA2) alongside the existing CNA. This maintains backward compatibility while providing enhanced protection for card identification data. (ID: 55220).
Support for Payment Account Reference (PAR) Retrieval
- Added support for retrieving the Payment Account Reference (PAR) from the card chip when PAR is enabled through terminal configuration. When a PAR value is available on the chip, the terminal extracts it and includes it in the transaction data, enabling consistent customer and payment account identification across supported systems. (ID: 54769).
Surcharge Calculation for Purchase Transactions
- Added support to retrieve the surcharge amount for purchase responses from the EPAS client library. Once the terminal identifies the card through BIN lookup and confirms the transaction as a purchase, it determines whether a surcharge applies and calculates the applicable surcharge amount. (ID: 54771).
Improvements
Improved Socket Connection Exception Handling
- Improved exception handling in the socket connection send function by separating keep-alive timer handling from the socket send operation. This ensures that exceptions or failures during socket communication do not affect the keep-alive mechanism.(ID: 54693).
Fixes
Fixed Purchase Full Button When Cashback Is Empty (Test Simulator)
- Fixed an issue where the Purchase Full button became unresponsive when the Cashback field was left empty instead of entering 0. The button now responds correctly and allows the transaction to proceed when no cashback amount is provided. (ID: 56365).
Added Log Scrolling Support in ECR (Test Simulator)
- Fixed an issue where the ECR log view did not provide an option to scroll through the available log entries. Users can now scroll through the logs to view information that extends beyond the visible area.(ID: 56443).
Fixed Button Colors When Switching Display Modes (Test Simulator)
- Fixed an issue where the LINK, BUSY, and CARD button colors were not reset correctly when switching from dark mode to light mode. The buttons now display the appropriate colors after changing the display mode.(ID: 55231).
Fixed ECL CARD Button Status Color (Test Simulator)
- Fixed an issue where the ECL CARD button remained green even when the ECL was disconnected. The button now correctly updates its color to reflect the current ECL connection status.(ID: 47128).
Known Issues in This Release
- None.
Written by:
Chamika Dimantha
Release & Compliance Specialist
Email: chamika.dimantha@westpay.se
Written date: 2026/11/12