> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ratiofx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Product updates and API changes

All notable changes to Ratio's platform and API are recorded here. Entries are listed in reverse chronological order.

<Note>
  Future releases will be documented here as they ship. Each entry will include the release date, version, and a summary of platform changes, new corridors, API updates, and documentation additions.
</Note>

***

## April 2026

### v0.1 — Initial release

**Added**

* Phase 1 corridors live: USD ↔ IDR, USD ↔ SGD, MYR ↔ IDR
* Supported stablecoins: USDT, IDRX, tnSGD, MYRC
* Smart contracts deployed on Kaia Kairos testnet
* Sandbox environment available for partner integration testing
* Indicative and firm quote endpoints (`GET /v1/quote`, `POST /v1/firm-quote`)
* Swap execution endpoint (`POST /v1/execute`)
* Settlement and webhook delivery for swap lifecycle events
* System state endpoint (`GET /v1/system/state`) for per-corridor health checks
* Oracle-based pricing via Pyth Network with Web2 FX API fallback
* Volume-tiered fee schedule per corridor
* kToken rebasing for LP fee distribution

**Documentation**

* Published Get Started section: Welcome, How Ratio Works, Supported Corridors, Key Concepts
* Published Features section: Oracle-Based Pricing, Atomic Settlement, Liquidity and Pools, Rebalancing, Fee Structure, Risk Management, Compliance
* Published Architecture section: System Overview, Kaia Blockchain, Oracle Infrastructure
* Published Integration Guide: Overview, Indicative Quotes, Firm Quotes, Executing Swaps, Settlements and Webhooks, Error Handling
* Published Partner Ecosystem section: Partner Types, Onboarding Process, Sandbox and Testing, Going Live, LP Participation
* Published API Reference: Quotes API, Swaps API, Webhooks, Rate Limits and Errors
* Published Resources section: FAQ, Glossary, Changelog, Support