# Harmonize 1.5 (August 01, 2022)

Welcome to the 1.5 release of Harmonize. Just before you go on holiday, this month we're bringing you some new updates and we hope you will like them:

- [Platform](#platform)
  - [Integration of Cardano](#integration-of-cardano)
    - [Deployment](#deployment)
  - [Ethereum like (Binance, Polygon)](#ethereum-like-binance-polygon)
  - [Ethereum transaction order cancellation or replacement](#ethereum-transaction-order-cancellation-or-replacement)
  - [Flow suite (Bitstamp, Coinbase Pro)](#flow-suite-bitstamp-coinbase-pro)


## Platform

### Integration of Cardano

This release introduces **native support for the Cardano network**, with full support of **account creation and ADA transfer operations**. Cardano is a third-generation open-source Proof-of-Stake blockchain. It is a direct competitor to Ethereum, which offers the development of smart contracts and the ability to easily build decentralized applications running entirely on the Cardano blockchain.

#### Deployment

As Cardano is a new ledger, its deployment is optional and requires, at a high level, configuration changes to the following components:

- Ledger Accounting
- Cardano indexer


**Our customer service will be happy to help you** with the configuration according to your infrastructure and your needs.

### Ethereum-like (Binance, Polygon)

We have validated that our **Ethereum implementation is compatible with Binance Smart Chain and Polygon**. In short, now we have one API and three blockchains.

### Ethereum transaction order cancellation or replacement

If you find yourself in a situation where a transaction order is stuck or has an error, **we have added the option to cancel it**. Click the **"Cancel order"** button on your order before it goes into the chain, add a comment explaining the reasons for the cancellation, and "Submit for approval". In some advanced use cases, you will need to "replace" the transaction in the mempool. To do so, we added a property into the intent API to reuse the nonce of a specified transaction.

### Flow suite (Bitstamp, Coinbase Pro)

In addition to Kraken, Silvergate and Signet, **we have added the Bitstamp and Coinbase Pro exchanges**, which you can now connect to your Harmonize platform.

In addition, the functionality to trade from these external accounts has also been added. **Now you can convert your cryptocurrencies into other currencies** using the "Buy" and "Sell" buttons.