# CHANGELOG 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.