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

# Release notes - Circle Payments Network - 2025

> 2025 release notes for Circle Payments Network

## August 2025

<Update label="2025.08.29">
  ### Documentation additions

  * Added a topic on detailed
    [payment failure codes](/cpn/references/errors/payment-failure-codes) to help
    explain why a payment failed and how to resolve the issue

  ### Documentation updates

  * Updated
    [payment failure reasons](/cpn/references/errors/payment-and-transaction-failure-reasons#payments)
    with new values
  * Added new [magic values](/cpn/references/testing/magic-values) for testing
    refund workflows
  * Added a new [payment error code](/cpn/references/errors/error-codes#payment)
    (`290207`) for missing required parameters
  * Added new [RFI error codes](/cpn/references/errors/error-codes#rfi) (`290302`,
    `290303`, `290304`, `290305`) for RFI verification failures

  ### API updates

  * Added the optional `quoteOptions` field to the
    [`POST /v1/cpn/quotes`](/api-reference/cpn/cpn-platform/create-quotes)
    endpoint to support additional quote options when creating a quote.
  * Updated the allowed values for `failureReason` for payments and transactions
    to reflect new failure reasons.
  * Added `failureCode` to the response of the following endpoints:
    * [`POST /v1/cpn/payments`](/api-reference/cpn/cpn-platform/create-payment)
    * [`GET /v1/cpn/payments`](/api-reference/cpn/cpn-platform/list-payments)
    * [`GET /v1/cpn/payments/{paymentId}`](/api-reference/cpn/cpn-platform/get-payment)
</Update>

## July 2025

<Update label="2025.07.25">
  Added full DevDocs for OFIs for Circle Payments network:

  ### Documentation additions

  Added the following topics for CPN:

  * [CPN overview](/cpn)
  * [API Integration Concepts](/cpn/concepts/api/api-integration)
  * [Quickstart: Integrate with CPN as an OFI](/cpn/quickstarts/integrate-with-cpn-ofi)
  * [How-to: Set up a webhook endpoint](/api-reference/webhook-endpoints)
  * [How-to: Verify webhook signatures](/api-reference/verify-webhook-signatures)
  * [How-to: Request Payment Configurations and Routes](/cpn/guides/payments/request-payment-config)
  * [How-to: Integrate with JSON Schema](/cpn/guides/payments/integrate-with-json-schema)
  * [How-to: Encrypt Travel Rule and Beneficiary Data](/cpn/guides/payments/encrypt-travel-rule-beneficiary-data)
  * [How-to: Create an Onchain Transaction](/cpn/guides/transactions/create-an-onchain-txn)
  * [How-to: Encrypt Files for RFI Transmission](/cpn/guides/payments/encrypt-files)
  * [How-to: Create a Support Ticket](/cpn/guides/supports/create-support-ticket)
  * [Supported blockchains](/cpn/references/blockchains/supported-blockchains)
  * [Wallet provider compatibility](/cpn/references/blockchains/wallet-provider-compatibility)
  * [Component states and workflows](/cpn/concepts/payments/component-states-and-workflows)
  * [Magic values for testing](/cpn/references/testing/magic-values)
  * [Webhook events](/cpn/references/webhooks/webhook-events)
  * [Webhook retries](/cpn/concepts/webhooks/webhook-retries)
  * [Payment and transaction failure reasons](/cpn/references/errors/payment-and-transaction-failure-reasons)
  * [Error codes](/cpn/references/errors/error-codes)
  * [JSON Schema](/cpn/concepts/api/json-schema)
  * [RFI levels](/cpn/references/compliance/rfi-levels)
  * [Travel rule requirements](/cpn/references/compliance/travel-rule-requirements)
  * [Payment reference](/cpn/concepts/payments/payment-reference)
  * [Validating Brazilian tax ID and bank account numbers](/cpn/references/compliance/validating-brazil-tax-account-id)

  ### API additions

  Added the following CPN endpoints:

  * [`GET /v1/cpn/configurations/overview`](/api-reference/cpn/cpn-platform/get-payment-configurations-overview)
  * [`GET /v1/cpn/configurations/routes`](/api-reference/cpn/cpn-platform/list-routes)
  * [`POST /v1/cpn/quotes`](/api-reference/cpn/cpn-platform/create-quotes)
  * [`GET /v1/cpn/quotes/{quoteId}`](/api-reference/cpn/cpn-platform/get-quote)
  * [`GET /v1/cpn/payments`](/api-reference/cpn/cpn-platform/list-payments)
  * [`POST /v1/cpn/payments`](/api-reference/cpn/cpn-platform/create-payment)
  * [`GET /v1/cpn/payments/{paymendId}`](/api-reference/cpn/cpn-platform/get-payment)
  * [`GET /v1/cpn/payments/{paymentId}/refunds/{refundId}`](/api-reference/cpn/cpn-platform/get-refund)
  * [`GET /v1/cpn/payments/requirements`](/api-reference/cpn/cpn-platform/get-payment-requirements)
  * [`POST /v1/cpn/payments/{paymentId}/transactions`](/api-reference/cpn/cpn-platform/create-transaction)
  * [`GET /v1/cpn/payments/{paymentId}/transactions/{transactionId}`](/api-reference/cpn/cpn-platform/get-transaction)
  * [`POST /v1/cpn/payments/{paymentId}/transactions/{transactionId}/submit`](/api-reference/cpn/cpn-platform/submit-transaction)
  * [`POST /v1/cpn/payments/{paymentId}/transactions/accelerate`](/api-reference/cpn/cpn-platform/accelerate-transaction)
  * [`GET /v1/cpn/payments/{paymentId}/rfis/{rfiId}`](/api-reference/cpn/cpn-platform/get-rfi)
  * [`POST /v1/cpn/payments/{paymentId}/rfis/{rfiId}/submit`](/api-reference/cpn/cpn-platform/submit-rfi)
  * [`POST /v1/cpn/payments/{paymentId}/rfis/{rfiId}/files`](/api-reference/cpn/cpn-platform/upload-rfi-file)
  * [`POST /v1/cpn/supportTickets`](/api-reference/cpn/cpn-platform/create-support-ticket)
</Update>