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

# Changelog

# Changelog

Public documentation and integration behavior changes.

## June 2026

* Made Mintlify the public documentation source.
* Added Stellar mainnet receive guidance for XLM and registered issued assets.
* Added reusable customer address guidance for Solana and Stellar rails.
* Clarified that invoice state, not raw balance movement, is the source of truth for fulfillment.

## May 2026

* Added pricing, billing, and gas-credit guidance.
* Added SDK-first developer quickstart language for `@paychainhq/sdk`.
* Added clearer guidance for payout routes, dynamic payout recipients, webhook verification, balances, transactions, networks, and tokens.
* Added contract interactions guidance for approved EVM and Solana actions.