# Changelog

## 2.0.0 - 2019-12-03

-   Updated for version 3 of the protocol.
-   Allow wrappers to be instantiated with EITHER a Web3.py `BaseProvider` OR an already-instantiated `Web3` client object.
-   Accept `str`ing arguments to `bytes` contract method parameters.
-   Expanded documentation examples.
-   Moved methods `jsdict_to_order()` and `order_to_jsdict()` from `zero_ex.contract_wrappers.exchange.types` to `zero_ex.contract_wrappers.order_conversions`.
-   Changed field name `zero_ex.contract_wrappers.tx_params.TxParams.gasPrice` to `.gas_price`.
-   Migrated to new version of 0x-contract-addresses.
-   Made the `underlying_method` field on ContractMethod private by prefixing its name with an underscore.
-   Corrected return types and values for call() interface to generated method wrappers. (Fixes #2298.)
-   Removed `send_transaction()` method from ContractMethod instances for underlying Solidity methods that are const (view/pure).
-   Added a `build_transaction()` method to instances of ContractMethod for non-const Solidity methods.
-   Removed `validator` argument from ContractMethod instances for underlying Solidity methods that lack inputs.

## 1.1.0 - 2019-08-14

-   Added wrapper for DevUtils contract.

## 1.0.3 - 2019-08-10

-   Added erroneously missing source files.

## 1.0.2 - 2019-08-10

-   Added erroneously missing source files.

## 1.0.1 - 2019-08-10

-   Botched upload to PyPI.

## 1.0.0 - 2019-08-08

-   Initial release
