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

# Changelog

> Changes to the API.

The API is in private beta. The OpenAPI document is the source of truth for the
current contract; beta changes may be made before general availability.

## September 2026

* Added rail-specific create, list, and retrieve families for ACH, domestic
  wire, international wire, realtime, and book transfers.
* Added unified Transfer list and retrieve endpoints.
* Limited public transfer cancellation to ACH.
* Added Transfer objects with `transfer_intent_` ids and links to related
  `agg_tx_` Transactions.
* Added Contacts, Destinations, and Information Requests, including queued ACH
  transfers that wait for recipient bank details.
* Added Account and virtual-account discovery, balances, and virtual-account
  commission configuration.
* Expanded Transaction retrieval, filtering, card-specific reads, fee
  components, and note updates.
* Standardized request, response, and query fields on camelCase.

Future entries will identify contract changes and any required client action.