> ## 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.

# August 16, 2026

> Changelog for August 16, 2026

## 🛠️ Improvements

### Crypto Orchestration

1. **Additional Rails and Tokens on** [Create Customer Wallets](https://developer.fin.com/api-reference/customers/create-customer-wallets) `POST /v2/customers/{customer_id}/wallets` now provisions wallets on `BASE` in addition to `ETHEREUM`, `POLYGON`, and `SOLANA`, and supports native and stablecoin tokens beyond `USDC`.
   | Rail                                                                                                                              | Currencies                                      |
   | --------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------- |
   | `BASE`                                                                                                                            | `ETH`, `USDC`, `EURC`                           |
   | `ETHEREUM`                                                                                                                        | `ETH`, `USDC`, `USDT`, `EURC`                   |
   | `POLYGON`                                                                                                                         | `MATIC`, `USDC`, `USDT`                         |
   | `SOLANA`                                                                                                                          | `SOL`, `USDC`, `EURC`, `PYUSD`, `USDT`, `USDPT` |
   | Previously, each rail supported `USDC` only. Requests specifying a token that is not available on the selected rail are rejected. |                                                 |

### Virtual Accounts

1. **Additional Crypto Tokens and Networks on** [Create Virtual Account V2](https://developer.fin.com/api-reference/virtual-accounts/create-virtual-account-v2) `POST /v2/customers/{customer_id}/virtual-accounts` now accepts `USDT` and `EURC` in `destination.currency` (previously `USDC` only), and `ETHEREUM`, `SOLANA`, and `BASE` in `destination.rail` (previously `POLYGON` only).
   * Availability depends on the token, the network, and the `source.rail`. See [Supported rails and currencies](https://developer.fin.com/guides/others/supported-rails-and-currencies) for the valid combinations.
   * The `destination.wallet` address format now depends on the selected rail. `ETHEREUM`, `BASE`, and `POLYGON` use hexadecimal addresses, and `SOLANA` uses base58.

### Beneficiaries

1. **Additional Crypto Tokens and Networks for Bank and E-Wallet Beneficiaries on** [Create Beneficiary V3](https://developer.fin.com/api-reference/beneficiaries/create-beneficiary-v3) `POST /v3/beneficiaries` now accepts `USDT` and `EURC` in `deposit_instruction.currency` and `refund_instruction.currency` (previously `USDC` only), and `ETHEREUM`, `SOLANA`, and `BASE` in `deposit_instruction.rail` and `refund_instruction.rail` (previously `POLYGON` only).
   * The `currency` and `rail` of `deposit_instruction` and `refund_instruction` must match.
   * Available rails and currencies depend on the configuration set up for your account. Contact support to confirm what is enabled for you.
2. **Additional Chains and Tokens for External Crypto Wallet Beneficiaries** On the External Crypto Wallet beneficiary type, `destination_wallet.rail` now accepts `BASE` alongside `POLYGON`, `ETHEREUM`, and `SOLANA`. `destination_wallet.currency` now accepts `ETH`, `SOL`, `MATIC`, `USDT`, `EURC`, `PYUSD`, and `USDPT` alongside `USDC`.
   * Not every token is available on every chain. `USDPT` is available on `SOLANA` only.