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

# January 02, 2026

> Changelog for January 02, 2026

## ✨ New Features

* **FX Rate Locking:** Introduced a lock period for exchange rates to ensure price stability during transactions.
* **Fee Calculator API:** Launched the [`/v1/fee-calculation`](/api-reference/fees/calculate) endpoint to estimate costs before initiating transfers.
* **Liquidation Deposit Webhook:** Introduced the `beneficiary.liquidation.deposit` webhook, which triggers when a deposit is made to a beneficiary's liquidation address.

## 🛠️ Improvements

* **Beneficiary Details v2:** Upgraded to a more structured and detailed format that supports richer metadata.
* **Flexible FX Query Parameters:** The FX rate endpoint now supports both `country_code` and `currency_code` as valid query parameters.
* **FX Response Metadata:** Added `valid_from` and `valid_till` (UTC) to the FX response to indicate rate validity windows.
* **Transaction Quotation Visibility:** Payout and batch payout responses now include a `quotation` object detailing the exchange rate, destination amount, and developer fees.
* **Orchestration Dashboard Updates:** Developers with prefunded balance capabilities can now view their `fin-ledger` balance directly in the dashboard.
* **Automated Balance Alerts:** Implemented email notifications to alert developers when prefunded balances fall below a minimum threshold.

## 🐞 Bug Fixes

* **Duplicate Beneficiary Prevention:** The system now prevents the creation of beneficiaries with duplicate bank information.

## ⚠️ Breaking Changes

* **Transaction Type Renaming:** The field `transaction_type` has been renamed from `DEBIT` to `OFFRAMP`.