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# CHANGELOG
## v0.33.0 - _TBD, 2018_
* Validate and lowercase all addresses in public methods (#373)
* Improve validation to force passing contract addresses on private networks (#385)
* Change `LogErrorContractEventArgs.errorId` type from `BigNumber` to `number` (#413)
* Rename all public `_unsubscribeAll` methods to `unsubscribeAll` (#415)
## v0.32.2 - _February 9, 2018_
* Fix publishing issue where .npmignore was not properly excluding undesired content (#389)
## v0.32.1 - _February 7, 2018_
* Reorganized `BlockParamLiteral` export into `@0xproject/types` package (#355)
* Now using `abi-gen` package to generate ContractEventArgs types (#371)
## v0.32.0 - _February 5, 2018_
* Add `zeroEx.etherToken.getContractAddressIfExists` (#350)
* Fixed the bug causing order watcher to throw if there is an event with the same signature but different indexed fields (#366)
## v0.31.1 - _February 1, 2018_
* Fix the bug causing order watcher to throw if makerToken === zrx (#357)
## v0.31.0 - _January 30, 2018_
* Add the `shouldAddPersonalMessagePrefix` parameter to `signOrderHashAsync` so that the
caller can decide on whether to add the personalMessage prefix before relaying the request
to the signer. Parity Signer, Ledger and TestRPC add the prefix themselves, Metamask expects
it to have already been added. (#349)
## v0.30.2 - _January 29, 2018_
* Add Rinkeby testnet addresses to artifacts (#337)
* Move @0xproject/types to dependencies from devDependencies fixing missing type errors
## v0.30.1 - _January 24, 2018_
* Fix a bug allowing negative fill values (#212)
* Fix a bug that made it impossible to pass a custom ZRX address (#341)
## v0.30.0 - _January 17, 2018_
* Add an error parameter to the order watcher callback (#312)
* Fix a bug making it impossible to catch some errors from awaitTransactionMinedAsync (#312)
* Fix a bug in fillOrdersUpTo validation making it impossible to fill up to if user doesn't have enough balance to fully fill all the orders (#321)
## v0.29.1 - _January 11, 2018_
* Fixed bignumber config issue #301 (#305)
## v0.29.0 - _December 28, 2017_
* Assert baseUnit amount supplied to `toUnitAmount` is integer amount. (#287)
* `toBaseUnitAmount` throws if amount supplied has too many decimals (#287)
## v0.28.0 - _December 20, 2017_
* Add `etherTokenAddress` arg to `depositAsync` and `withdrawAsync` methods on `zeroEx.etherToken` (#267)
* Removed accidentally included `unsubscribeAll` method from `zeroEx.proxy`, `zeroEx.etherToken` and `zeroEx.tokenRegistry` (#267)
* Removed `etherTokenContractAddress` from `ZeroEx` constructor arg `ZeroExConfig` (#267)
* Rename `SubscriptionOpts` to `BlockRange` (#272)
* Add `zeroEx.etherToken.subscribe`, `zeroEx.etherToken.unsubscribe`, `zeroEx.etherToken.unsubscribeAll` (#277)
* Add `zeroEx.etherToken.getLogsAsync` (#277)
* Add new public types `BlockParamLiteral`, `EtherTokenEvents`, `EtherTokenContractEventArgs`, `DepositContractEventArgs`, `WithdrawalContractEventArgs` (#277)
* Support `Deposit` and `Withdraw` events on etherToken (#277)
* Improve the error message when taker is not a string (#278)
## v0.27.1 - _November 28, 2017_
* Export `TransactionOpts` type
## v0.27.0 - _November 28, 2017_
* Make `ZeroExConfig` required parameter of `ZeroEx` constructor (#233)
* Add a required property `networkId` to `ZeroExConfig` (#233)
* Make all `getContractAddress` functions, `zeroEx.exchange.subscribe`, `zeroEx.exchange.getZRXTokenAddress` sync (#233)
* Remove `ZeroExError.ContractNotFound` and replace it with contract-specific errors (#233)
* Make `DecodedLogEvent<A>` contain `LogWithDecodedArgs<A>` under log key instead of merging it in like web3 does (#234)
* Rename `removed` to `isRemoved` in `DecodedLogEvent<A>` (#234)
* Add config allowing to specify gasPrice and gasLimit for every transaction sending method (#235)
* All transaction sending methods now call `estimateGas` if no gas amount was supplied (#235)
* Modify order validation methods to validate against the `latest` block, not against the `pending` block (#236)
## v0.26.0 - _November 21, 2017_
* Add post-formatter for logs converting `blockNumber`, `logIndex`, `transactionIndex` from hexes to numbers (#231)
* Remove support for Async callback types when used in Subscribe functions (#222)
* In OrderWatcher subscribe to ZRX Token Transfer and Approval events when maker token is different (#225)
## v0.25.1 - _November 13, 2017_
* Standardise on Cancelled over Canceled (#217)
* Add missing `DecodedLogEvent` type to exported types (#205)
* Normalized the transactionReceipt status to be `null|0|1`, 1 meaning transaction execution successful, 0 unsuccessful and `null` if it is a pre-byzantinium transaction. (#200)
## v0.23.0 - _November 12, 2017_
* Fixed unhandled promise rejection error in subscribe methods (#209)
* Subscribe callbacks now receive an error object as their first argument
## v0.22.6 - _November 10, 2017_
* Add a timeout parameter to transaction awaiting (#206)
## v0.22.5 - _November 7, 2017_
* Re-publish v0.22.4 to fix publishing issue
## v0.22.4 - _October 25, 2017_
* Upgraded bignumber.js to a new version that ships with native typings
## v0.22.3 - _October 25, 2017_
* Fixed an issue with new version of testrpc and unlimited proxy allowance (#199)
## v0.22.2 - _October 24, 2017_
* Fixed rounding of maker fill amount and incorrect validation of partial fees (#197)
## v0.22.0 - _October 16, 2017_
* Started using `OrderFillRequest` interface instead of `OrderFillOrKillRequest` interface for `zeroEx.exchange.batchFillOrKill` (#187)
* Removed `OrderFillOrKillRequest` (#187)
## v0.21.4 - _October 13, 2017_
* Made 0x.js more type-safe by making `getLogsAsync` and `subscribe/subscribeAsync` generics parametrized with arg type (#194)
## v0.21.3 - _October 12, 2017_
* Fixed a bug causing order fills to throw `INSUFFICIENT_TAKER_ALLOWANCE` (#193)
## v0.21.2 - _October 11, 2017_
* Exported `ContractEventArg` as a public type (#190)
## v0.21.1 - _October 11, 2017_
* Fixed a bug in subscriptions (#189)
## v0.21.0 - _October 10, 2017_
* Complete rewrite of subscription logic (#182)
* Subscriptions no longer return historical logs. If you want them - use `getLogsAsync`
* Subscriptions now use [ethereumjs-blockstream](https://github.com/ethereumjs/ethereumjs-blockstream) under the hood
* Subscriptions correctly handle block re-orgs (forks)
* Subscriptions correctly backfill logs (connection problems)
* They no longer setup filters on the underlying nodes, so you can use them with infura without a filter Subprovider
* Removed `ContractEventEmitter` and added `LogEvent`
* Renamed `zeroEx.token.subscribeAsync` to `zeroEx.token.subscribe`
* Added `zeroEx.token.unsubscribe` and `zeroEx.exchange.unsubscribe`
* Renamed `zeroEx.exchange.stopWatchingAllEventsAsync` to `zeroEx.exhange.unsubscribeAll`
* Renamed `zeroEx.token.stopWatchingAllEventsAsync` to `zeroEx.token.unsubscribeAll`
* Fixed the batch fills validation by emulating all balance & proxy allowance changes (#185)
## v0.20.0 - _October 5, 2017_
* Add `zeroEx.token.getLogsAsync` (#178)
* Add `zeroEx.exchange.getLogsAsync` (#178)
* Fixed fees validation when one of the tokens transferred is ZRX (#181)
## v0.19.0 - _September 29, 2017_
* Made order validation optional (#172)
* Added Ropsten testnet support (#173)
* Fixed a bug causing awaitTransactionMinedAsync to DDos backend nodes (#175)
## v0.18.0 - _September 26, 2017_
* Added `zeroEx.exchange.validateOrderFillableOrThrowAsync` to simplify orderbook pruning (#170)
## v0.17.0 - _September 26, 2017_
* Made `zeroEx.exchange.getZRXTokenAddressAsync` public (#171)
## v0.16.0 - _September 20, 2017_
* Added the ability to specify custom contract addresses to be used with 0x.js (#165)
* ZeroExConfig.exchangeContractAddress
* ZeroExConfig.tokenRegistryContractAddress
* ZeroExConfig.etherTokenContractAddress
* Added `zeroEx.tokenRegistry.getContractAddressAsync` (#165)
## v0.15.0 - _September 8, 2017_
* Added the ability to specify a historical `blockNumber` at which to query the blockchain's state when calling a token or exchange method (#161)
## v0.14.2 - _September 7, 2017_
* Fixed an issue with bignumber.js types not found (#160)
## v0.14.1 - _September 7, 2017_
* Fixed an issue with Artifact type not found (#159)
## v0.14.0 - _September 6, 2017_
* Added `zeroEx.exchange.throwLogErrorsAsErrors` method to public interface (#157)
* Fixed an issue with overlapping async intervals in `zeroEx.awaitTransactionMinedAsync` (#157)
* Fixed an issue with log decoder returning `BigNumber`s as `strings` (#157)
## v0.13.0 - _September 6, 2017_
* Made all the functions submitting transactions to the network to immediately return transaction hash (#151)
* Added `zeroEx.awaitTransactionMinedAsync` (#151)
* Added `TransactionReceiptWithDecodedLogs`, `LogWithDecodedArgs`, `DecodedLogArgs` to public types (#151)
* Added signature validation to `validateFillOrderThrowIfInvalidAsync` (#152)
## v0.12.1 - _September 2, 2017_
* Added the support for web3@1.x.x provider (#142)
* Added the optional `zeroExConfig` parameter to the constructor of `ZeroEx` (#139)
* Added the ability to specify `gasPrice` when instantiating `ZeroEx` (#139)
## v0.11.0 - _August 24, 2017_
* Added `zeroEx.token.setUnlimitedProxyAllowanceAsync` (#137)
* Added `zeroEx.token.setUnlimitedAllowanceAsync` (#137)
* Added `zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS` (#137)
## v0.10.4 - _Aug 24, 2017_
* Fixed a bug where checksummed addresses were being pulled from artifacts and not lower-cased. (#135)
## v0.10.1 - _Aug 24, 2017_
* Added `zeroEx.exchange.validateFillOrderThrowIfInvalidAsync` (#128)
* Added `zeroEx.exchange.validateFillOrKillOrderThrowIfInvalidAsync` (#128)
* Added `zeroEx.exchange.validateCancelOrderThrowIfInvalidAsync` (#128)
* Added `zeroEx.exchange.isRoundingErrorAsync` (#128)
* Added `zeroEx.proxy.getContractAddressAsync` (#130)
* Added `zeroEx.tokenRegistry.getTokenAddressesAsync` (#132)
* Added `zeroEx.tokenRegistry.getTokenAddressBySymbolIfExistsAsync` (#132)
* Added `zeroEx.tokenRegistry.getTokenAddressByNameIfExistsAsync` (#132)
* Added `zeroEx.tokenRegistry.getTokenBySymbolIfExistsAsync` (#132)
* Added `zeroEx.tokenRegistry.getTokenByNameIfExistsAsync` (#132)
* Added clear error message when checksummed address is passed to a public method (#124)
* Fixes the description of `shouldThrowOnInsufficientBalanceOrAllowance` in docs (#127)
## v0.9.3 - _Aug 22, 2017_
* Update contract artifacts to include latest Kovan and Mainnet deploys (#118)
## v0.9.2 - _Aug 21, 2017_
* *This version was unpublished because of a publishing issue.*
* Update contract artifacts to include latest Kovan and Mainnet deploys (#118)
## v0.9.1 - _Aug. 16, 2017_
* Fixed the bug causing `zeroEx.token.getBalanceAsync()` to fail if no addresses available (#120)
## v0.9.0 - _Jul. 26, 2017_
* Migrated to the new version of smart contracts (#101)
* Removed the ability to call methods on multiple authorized Exchange smart contracts (#106)
* Made `zeroEx.getOrderHashHex` a static method (#107)
* Cached `net_version` requests and invalidate the cache on calls to `setProvider` (#95)
* Renamed `zeroEx.exchange.batchCancelOrderAsync` to `zeroEx.exchange.batchCancelOrdersAsync`
* Renamed `zeroEx.exchange.batchFillOrderAsync` to `zeroEx.exchange.batchFillOrdersAsync`
* Updated to typescript v2.4 (#104)
* Fixed an issue with incorrect balance/allowance validation when ZRX is one of the tokens traded (#109)
## v0.8.0 - _Jul. 4, 2017_
* Added the ability to call methods on different authorized versions of the Exchange smart contract (#82)
* Updated contract artifacts to reflect latest changes to the smart contracts (0xproject/contracts#59)
* Added `zeroEx.proxy.isAuthorizedAsync` and `zeroEx.proxy.getAuthorizedAddressesAsync` (#89)
* Added `zeroEx.token.subscribeAsync` (#90)
* Made contract invalidation functions private (#90)
* `zeroEx.token.invalidateContractInstancesAsync`
* `zeroEx.exchange.invalidateContractInstancesAsync`
* `zeroEx.proxy.invalidateContractInstance`
* `zeroEx.tokenRegistry.invalidateContractInstance`
* Fixed the bug where `zeroEx.setProviderAsync` didn't invalidate etherToken contract's instance
## v0.7.1 - _Jun. 26, 2017_
* Added the ability to convert Ether to wrapped Ether tokens and back via `zeroEx.etherToken.depostAsync` and `zeroEx.etherToken.withdrawAsync` (#81)
## v0.7.0 - _Jun. 22, 2017_
* Added Kovan smart contract artifacts (#78)
* Started returning fillAmount from `fillOrderAsync` and `fillUpToAsync` (#72)
* Started returning cancelledAmount from `cancelOrderAsync` (#72)
* Renamed type `LogCancelArgs` to `LogCancelContractEventArgs` and `LogFillArgs` to `LogFillContractEventArgs`
## v0.6.2 - _Jun. 21, 2017_
* Reduced bundle size
* Improved documentation
## v0.6.1 - _Jun. 19, 2017_
* Improved documentation
## v0.6.0 - _Jun. 19, 2017_
* Made `ZeroEx` class accept `Web3Provider` instance instead of `Web3` instance
* Added types for contract event arguments
## v0.5.2 - _Jun. 15, 2017_
* Fixed the bug in `postpublish` script that caused that only unminified UMD bundle was uploaded to release page
## v0.5.1 - _Jun. 15, 2017_
* Added `postpublish` script to publish to Github Releases with assets.
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