Overview
Release Notes
Keep track of changes and upgrades for the Paynomic Pay platform.
This section documents merchant-facing and integrator-relevant changes: API contracts, callback formats, new currencies and networks, Merchant Console UX, and security improvements.
How to read these notes
Each entry is tagged with an impact level and includes an Action required line so you know immediately whether your integration needs updating.
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New feature or capability |
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Bug fix for existing behavior |
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Enhancement to existing feature |
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Behavioral change — review the action line |
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Requires integration changes |
Platform evolution note
Since 2023 Paynomic Pay has provided mass payouts, a hosted payment page, and acquiring capabilities through the Merchant Console. Starting in mid-2025, we are progressively migrating these features to a modernized service architecture — improving performance, security, and developer experience. Existing API contracts remain stable; new endpoints are introduced alongside legacy ones during the transition.
2026: Financial precision and platform security
USDT fee precision improved. Mass Payouts stabilized with token support. Bulk payout optimization. Centralized secret management for all core services.
2025: Refunds, AML expansion, mass payouts, and merchant interface modernization
Full refund lifecycle launched. AML coverage expanded to outgoing transactions and recipient addresses. Mass Payouts MVP (fiat + tokens). Exchange module with limits and rate checking. Optimism and Polygon networks added. HMAC-signed merchant API requests. Merchant interface modernization — progressive migration of payment and payout capabilities to new service architecture.
2024: API v2, custodial console as product, and compliance-grade deposits
API v2 with merchant auth, IP whitelist, and standardized errors. AML verification for deposits. Dashboard with analytics. TON, USDC, and BDT currencies added. Network-based wallet architecture. Reliable event delivery between services.
2023: Multi-chain foundation and first production merchant
Platform foundation: BTC, LTC, ETH, BNB support. Decimal precision. Merchant Backoffice with 2FA, permissions, transit wallets, and callback management. Enhanced key encryption at rest. First production merchant onboarded in Q4.
