Revision & Enhancement - DAS Gateway Documentation

Overview

The Revision & Enhancement log records major updates, feature improvements, and optimizations made to the system. This format allows users to easily view the latest changes, with each version stored in an expandable section.

Revisions by Version

Version 3.6.3 - Patch Released on 2026-01-19

Updates & Changes

Change	Description
Refund API – E-Wallet Limitation	Refunds are not supported for transactions made using PayPay, Pay-Easy, and Konbini payment methods.

Note: This update is a documentation clarification and does not introduce any functional API changes.

Version 3.6.2 - Patch Released on 2025-09-17

Updates & Changes

Change	Description
DEV API Base URL Update	The DEV environment API base URL has been changed from `https://api-dev.paymentoptions.com/api/v1` to `https://api-dev.paymentoptions.com`. All DEV API endpoints in the documentation have been updated accordingly.

Note: This update only affects the DEV environment. Please update any development or staging integrations to use the new base URL.

Version 3.6.1 - Patch Released on 2025-08-05

New Enhancements

Feature	Description
Gateway Error Codes Update	Updated and refined Gateway Error Codes in documentation to include detailed response codes, messages, and applied levels for better clarity and troubleshooting.

Version 3.6 - Released on 2025-07-21

New Enhancements

Feature	Description
E-Wallets Section Expanded	Added Apple Pay and Google Pay under the `Documentation → Payment Methods → E-Wallets` section. View Section
Supported E-Wallets Updated	Moved PayPay, Gcash, PayEasy, and Konbini from the upcoming list to the official list of supported e-wallets.
HPP API Update	Updated the `Hosted Payment Page` API reference with configuration for Apple Pay and Google Pay button priority. View API
Tokenization Flow Updated	Replaced the Generate Token API flow diagram with a new version to better explain token handling and reassure merchants that card details are not stored.

Version 3.5 - Released on 2025-06-25

New Enhancements

Feature	Description
New Documentation Section	Added a new page under `Documentation → Settlement` titled “Merchant Settlement”. This page explains how Payment Options handles merchant settlements, outlines the full settlement process, and defines key reporting metrics. View Page

Version 3.4.1 - Patch Released on 2025-05-12

New Enhancements

Feature	Description
API Response Update	Added the `merchant_ip` field under device_details in the API response, where applicable.

Version 3.4 - Released on 2025-04-10

New Enhancements

Feature	Description
Introduction to Payments	Added a new section under `Documentation → Payments` titled “Introduction to Payments” which includes: - Key Participants in the Card Payments Ecosystem - How Card Payments Work – From Initiation to Authorization - Settlement – How Merchants Receive Their Funds - Our Role – What We Offer and How We Simplify Payments. View Section
API Navigation Update	Added Purchase API (V2) and Authorisation API (V2) under the Server To Server section in the API Reference.

Version 3.3 - Patch Released on 2025-03-19

New Enhancements

Feature	Description
Language Navigation	Minor updates on the language navigation for better user experience.

Version 3.2 - Released on 2025-03-11

New Enhancements

Feature	Description
JP Documentation	Implemented the Japanese version of the documentation.
API Endpoints	Minor updates on creating submenu of API Endpoints for better navigation.

Version 3.1 - Patch Released on 2025-02-14

New Enhancements

Feature	Description
API Reference	Added the 3D Secure Integration API to the Server-to-Server API Reference.
API Endpoints	Updated the order of Authorization and Body attributes to align with the cURL payload.
Gateway Error Codes	Reviewed and updated error messages in the Error and Response sections of the API Reference.
Gateway Release Note	Updated the Release History for Gateway Release Notes. Included features and enhancements related to Merchants and Partners in Release 21.

Version 3.0 - Released on 2025-02-12

Highlights

Platform Migration: Moved to the Mintlify platform with a refreshed interface, interactive features, and AI-powered search.
Expanded Payment Methods: Added support for new e-wallets like Apple Pay and Google Pay.
Enhanced Security & Compliance: PCI DSS 4.0 compliance, new 3DS protocols, and additional data security measures.
Localization & Accessibility: Launched Japanese language support, with potential for further localization.

Additional Improvements

Feature	Description
AI-Powered Search	New intelligent search function to improve navigation and help users find content quickly.
User Interface Enhancements	Improved navigation with categorized sections and direct access to FAQs and guides.
Diagrams, Flowcharts & Process Flows	Added visual aids, including flowcharts and process flows, to illustrate key integrations and configurations.
Gateway Access Links	Provided direct links to gateway features and tools for easy integration and account management.
Performance Optimizations	Improved API response times to handle high traffic volumes.

Additional Resources

API Update Logs

Detailed logs of API-specific updates, new endpoints, and code examples.

Gateway Release Notes

Recent release notes, highlighting new features, bug fixes, and other updates on the gateway.

This log will be continuously updated as the Payment Options Gateway evolves. For a closer look at specific updates, refer to Gateway Release Notes and API Update Logs. Visual aids such as diagrams, flowcharts, and process flows are integrated throughout the documentation to simplify understanding of complex setups and integrations.

​Overview

​Revisions by Version

​Updates & Changes

​Updates & Changes

​New Enhancements

​New Enhancements

​New Enhancements

​New Enhancements

​New Enhancements

​New Enhancements

​New Enhancements

​New Enhancements

​Highlights

​Additional Improvements

​Additional Resources

API Update Logs

Gateway Release Notes

Overview

Revisions by Version

Updates & Changes

Updates & Changes

New Enhancements

New Enhancements

New Enhancements

New Enhancements

New Enhancements

New Enhancements

New Enhancements

New Enhancements

Highlights

Additional Improvements

Additional Resources