Publish

- @0x/contracts-asset-proxy@3.6.5
 - @0x/contracts-broker@1.1.13
 - @0x/contracts-coordinator@3.1.14
 - @0x/contracts-dev-utils@1.3.12
 - @0x/contracts-erc1155@2.1.14
 - @0x/contracts-erc20@3.2.8
 - @0x/contracts-erc721@3.1.14
 - @0x/contracts-exchange-forwarder@4.2.14
 - @0x/contracts-exchange-libs@4.3.14
 - @0x/contracts-exchange@3.2.14
 - @0x/contracts-extensions@6.2.8
 - @0x/contracts-integrations@2.7.8
 - @0x/contracts-multisig@4.1.14
 - @0x/contracts-staking@2.0.21
 - @0x/contracts-test-utils@5.3.11
 - @0x/contracts-utils@4.5.8
 - @0x/contracts-zero-ex@0.9.0
 - @0x/asset-swapper@5.1.0
 - @0x/contract-addresses@5.3.0
 - @0x/contract-artifacts@3.9.0
 - @0x/contract-wrappers-test@12.2.24
 - @0x/contract-wrappers@13.10.0
 - @0x/migrations@6.5.0
 - @0x/order-utils@10.4.6

.github/workflows/publish.yml

@@ -0,0 +1,48 @@
+name: publish
+
+on:
+  workflow_dispatch:
+      inputs:
+          ci_status:
+              description: 'required CI status'
+              default: 'success'
+              required: true
+
+jobs:
+    publish:
+        runs-on: ubuntu-latest
+        steps:
+            - name: 'check successful status'
+              run: |
+                  REF_STATUS=$(curl -s \
+                  'https://api.github.com/repos/${{ github.repository }}/commits/${{ github.ref }}/status' \
+                  | jq .state)
+                  [[ "${REF_STATUS}" == '"${{ github.event.inputs.ci_status }}"' ]] || \
+                  (echo "::error ::${{ github.ref }} does not have a successful CI status" && false)
+            - uses: actions/checkout@v2
+              with:
+                ref: 'development'
+                fetch-depth: 0
+            - uses: actions/setup-node@v1
+              with:
+                node-version: 10
+            - uses: actions/setup-python@v2
+            - name: 'configure git'
+              run: |
+                  git config --global user.email "github-actions@github.com"
+                  git config --global user.name "Github Actions"
+            - name: 'install dependencies'
+              run: |
+                  yarn -D
+            - name: 'build and publish'
+              run: |
+                  echo '//registry.npmjs.org/:_authToken=${NPM_TOKEN}' > .npmrc
+                  npm run run:publish:gha
+              env:
+                  NPM_TOKEN: ${{ secrets.NPM_PUBLISH_TOKEN }}
+                  GITHUB_TOKEN: ${{ github.token }}
+            - name: 'merge into main branch'
+              run: |
+                  git checkout main && \
+                  git merge ${{ github.ref }} && \
+                  git push

.prettierignore

@@ -82,4 +82,5 @@ lib
 /packages/asset-swapper/test/generated-wrappers
 package.json
 packages/*/docs
+docs/
 *.sol

README.md

@@ -8,7 +8,7 @@ This repository is a monorepo including the 0x protocol smart contracts and nume
 
 [website-url]: https://0x.org
 
-[![CircleCI](https://circleci.com/gh/0xProject/0x-monorepo.svg?style=svg&circle-token=61bf7cd8c9b4e11b132089dfcffdd1be277d1e0c)](https://circleci.com/gh/0xProject/0x-monorepo)
+[![CircleCI](https://circleci.com/gh/0xProject/protocol.svg?style=svg&circle-token=61bf7cd8c9b4e11b132089dfcffdd1be277d1e0c)](https://circleci.com/gh/0xProject/protocool)
 [![Coverage Status](https://coveralls.io/repos/github/0xProject/0x-monorepo/badge.svg?branch=development)](https://coveralls.io/github/0xProject/0x-monorepo?branch=development)
 [![Discord](https://img.shields.io/badge/chat-discord.chat-yellow.svg?style=flat)](https://discordapp.com/invite/d3FTX3M)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
@@ -92,7 +92,7 @@ yarn build
 To build a specific package:
 
 ```bash
-PKG=@0x/web3-wrapper yarn build
+PKG=@0x/contract-wrappers yarn build
 ```
 
 To build all contracts packages:
@@ -115,7 +115,7 @@ To watch a specific package and all it's dependent packages:
 PKG=[NPM_PACKAGE_NAME] yarn watch
 
 e.g
-PKG=@0x/web3-wrapper yarn watch
+PKG=@0x/contract-wrappers yarn watch
 ```
 
 ### Clean
@@ -143,7 +143,7 @@ yarn rebuild
 To re-build (clean & build) a specific package & it's deps:
 
 ```bash
-PKG=0x.js yarn rebuild
+PKG=@0x/contract-wrappers yarn rebuild
 ```
 
 ### Lint
@@ -157,7 +157,7 @@ yarn lint
 Lint a specific package:
 
 ```bash
-PKG=0x.js yarn lint
+PKG=@0x/contract-wrappers yarn lint
 ```
 
 ### Run Tests
@@ -171,7 +171,7 @@ yarn test
 Run a specific package's test:
 
 ```bash
-PKG=@0x/web3-wrapper yarn test
+PKG=@0x/contract-wrappers yarn test
 ```
 
 Run all contracts packages tests:

contracts/asset-proxy/CHANGELOG.json

@@ -1,4 +1,59 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "3.6.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "3.6.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "3.6.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "3.6.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "3.6.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "3.6.0",
+        "changes": [
+            {
+                "note": "Add `SwerveBridge` and `SnowSwapBridge` (duplicate of `CurveBridge`)",
+                "pr": 2707
+            }
+        ],
+        "timestamp": 1603833198
+    },
     {
         "version": "3.5.0",
         "changes": [

contracts/asset-proxy/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v3.6.5 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v3.6.4 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.6.3 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.6.2 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v3.6.1 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v3.6.0 - _October 27, 2020_
+
+    * Add `SwerveBridge` and `SnowSwapBridge` (duplicate of `CurveBridge`) (#2707)
+
 ## v3.5.0 - _October 21, 2020_
 
     * Update `CurveBridge` to support more varied curves (#2633)

contracts/asset-proxy/contracts/src/bridges/ShellBridge.sol

@@ -51,16 +51,15 @@ contract ShellBridge is
         external
         returns (bytes4 success)
     {
-        // Decode the bridge data to get the `fromTokenAddress`.
-        (address fromTokenAddress) = abi.decode(bridgeData, (address));
+        // Decode the bridge data to get the `fromTokenAddress` and `pool`.
+        (address fromTokenAddress, address pool) = abi.decode(bridgeData, (address, address));
 
         uint256 fromTokenBalance = IERC20Token(fromTokenAddress).balanceOf(address(this));
-        IShell exchange = IShell(_getShellAddress());
         // Grant an allowance to the exchange to spend `fromTokenAddress` token.
-        LibERC20Token.approveIfBelow(fromTokenAddress, address(exchange), fromTokenBalance);
+        LibERC20Token.approveIfBelow(fromTokenAddress, pool, fromTokenBalance);
 
         // Try to sell all of this contract's `fromTokenAddress` token balance.
-        uint256 boughtAmount = exchange.originSwap(
+        uint256 boughtAmount = IShell(pool).originSwap(
             fromTokenAddress,
             toTokenAddress,
             fromTokenBalance,

contracts/asset-proxy/contracts/src/bridges/SnowSwapBridge.sol

@@ -0,0 +1,119 @@
+
+/*
+
+  Copyright 2019 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.5.9;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/interfaces/IERC20Token.sol";
+import "@0x/contracts-erc20/contracts/src/LibERC20Token.sol";
+import "@0x/contracts-exchange-libs/contracts/src/IWallet.sol";
+import "@0x/contracts-utils/contracts/src/DeploymentConstants.sol";
+import "../interfaces/IERC20Bridge.sol";
+import "../interfaces/ICurve.sol";
+
+
+// solhint-disable not-rely-on-time
+// solhint-disable space-after-comma
+contract SnowSwapBridge is
+    IERC20Bridge,
+    IWallet,
+    DeploymentConstants
+{
+    struct SnowSwapBridgeData {
+        address curveAddress;
+        bytes4 exchangeFunctionSelector;
+        address fromTokenAddress;
+        int128 fromCoinIdx;
+        int128 toCoinIdx;
+    }
+
+    /// @dev Callback for `ICurve`. Tries to buy `amount` of
+    ///      `toTokenAddress` tokens by selling the entirety of the opposing asset
+    ///      (DAI, USDC) to the Curve contract, then transfers the bought
+    ///      tokens to `to`.
+    /// @param toTokenAddress The token to give to `to` (i.e DAI, USDC, USDT).
+    /// @param from The maker (this contract).
+    /// @param to The recipient of the bought tokens.
+    /// @param amount Minimum amount of `toTokenAddress` tokens to buy.
+    /// @param bridgeData The abi-encoeded "from" token address.
+    /// @return success The magic bytes if successful.
+    function bridgeTransferFrom(
+        address toTokenAddress,
+        address from,
+        address to,
+        uint256 amount,
+        bytes calldata bridgeData
+    )
+        external
+        returns (bytes4 success)
+    {
+        // Decode the bridge data to get the SnowSwap metadata.
+        SnowSwapBridgeData memory data = abi.decode(bridgeData, (SnowSwapBridgeData));
+
+        require(toTokenAddress != data.fromTokenAddress, "SnowSwapBridge/INVALID_PAIR");
+        uint256 fromTokenBalance = IERC20Token(data.fromTokenAddress).balanceOf(address(this));
+        // Grant an allowance to the exchange to spend `fromTokenAddress` token.
+        LibERC20Token.approveIfBelow(data.fromTokenAddress, data.curveAddress, fromTokenBalance);
+
+        // Try to sell all of this contract's `fromTokenAddress` token balance.
+        {
+            (bool didSucceed, bytes memory resultData) =
+                data.curveAddress.call(abi.encodeWithSelector(
+                    data.exchangeFunctionSelector,
+                    data.fromCoinIdx,
+                    data.toCoinIdx,
+                    // dx
+                    fromTokenBalance,
+                    // min dy
+                    amount
+                ));
+            if (!didSucceed) {
+                assembly { revert(add(resultData, 32), mload(resultData)) }
+            }
+        }
+
+        uint256 toTokenBalance = IERC20Token(toTokenAddress).balanceOf(address(this));
+        // Transfer the converted `toToken`s to `to`.
+        LibERC20Token.transfer(toTokenAddress, to, toTokenBalance);
+
+        emit ERC20BridgeTransfer(
+            data.fromTokenAddress,
+            toTokenAddress,
+            fromTokenBalance,
+            toTokenBalance,
+            from,
+            to
+        );
+        return BRIDGE_SUCCESS;
+    }
+
+    /// @dev `SignatureType.Wallet` callback, so that this bridge can be the maker
+    ///      and sign for itself in orders. Always succeeds.
+    /// @return magicValue Magic success bytes, always.
+    function isValidSignature(
+        bytes32,
+        bytes calldata
+    )
+        external
+        view
+        returns (bytes4 magicValue)
+    {
+        return LEGACY_WALLET_MAGIC_VALUE;
+    }
+}

contracts/asset-proxy/contracts/src/bridges/SwerveBridge.sol

@@ -0,0 +1,119 @@
+
+/*
+
+  Copyright 2019 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.5.9;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/interfaces/IERC20Token.sol";
+import "@0x/contracts-erc20/contracts/src/LibERC20Token.sol";
+import "@0x/contracts-exchange-libs/contracts/src/IWallet.sol";
+import "@0x/contracts-utils/contracts/src/DeploymentConstants.sol";
+import "../interfaces/IERC20Bridge.sol";
+import "../interfaces/ICurve.sol";
+
+
+// solhint-disable not-rely-on-time
+// solhint-disable space-after-comma
+contract SwerveBridge is
+    IERC20Bridge,
+    IWallet,
+    DeploymentConstants
+{
+    struct SwerveBridgeData {
+        address curveAddress;
+        bytes4 exchangeFunctionSelector;
+        address fromTokenAddress;
+        int128 fromCoinIdx;
+        int128 toCoinIdx;
+    }
+
+    /// @dev Callback for `ICurve`. Tries to buy `amount` of
+    ///      `toTokenAddress` tokens by selling the entirety of the opposing asset
+    ///      (DAI, USDC) to the Curve contract, then transfers the bought
+    ///      tokens to `to`.
+    /// @param toTokenAddress The token to give to `to` (i.e DAI, USDC, USDT).
+    /// @param from The maker (this contract).
+    /// @param to The recipient of the bought tokens.
+    /// @param amount Minimum amount of `toTokenAddress` tokens to buy.
+    /// @param bridgeData The abi-encoeded "from" token address.
+    /// @return success The magic bytes if successful.
+    function bridgeTransferFrom(
+        address toTokenAddress,
+        address from,
+        address to,
+        uint256 amount,
+        bytes calldata bridgeData
+    )
+        external
+        returns (bytes4 success)
+    {
+        // Decode the bridge data to get the SwerveBridgeData metadata.
+        SwerveBridgeData memory data = abi.decode(bridgeData, (SwerveBridgeData));
+
+        require(toTokenAddress != data.fromTokenAddress, "SwerveBridge/INVALID_PAIR");
+        uint256 fromTokenBalance = IERC20Token(data.fromTokenAddress).balanceOf(address(this));
+        // Grant an allowance to the exchange to spend `fromTokenAddress` token.
+        LibERC20Token.approveIfBelow(data.fromTokenAddress, data.curveAddress, fromTokenBalance);
+
+        // Try to sell all of this contract's `fromTokenAddress` token balance.
+        {
+            (bool didSucceed, bytes memory resultData) =
+                data.curveAddress.call(abi.encodeWithSelector(
+                    data.exchangeFunctionSelector,
+                    data.fromCoinIdx,
+                    data.toCoinIdx,
+                    // dx
+                    fromTokenBalance,
+                    // min dy
+                    amount
+                ));
+            if (!didSucceed) {
+                assembly { revert(add(resultData, 32), mload(resultData)) }
+            }
+        }
+
+        uint256 toTokenBalance = IERC20Token(toTokenAddress).balanceOf(address(this));
+        // Transfer the converted `toToken`s to `to`.
+        LibERC20Token.transfer(toTokenAddress, to, toTokenBalance);
+
+        emit ERC20BridgeTransfer(
+            data.fromTokenAddress,
+            toTokenAddress,
+            fromTokenBalance,
+            toTokenBalance,
+            from,
+            to
+        );
+        return BRIDGE_SUCCESS;
+    }
+
+    /// @dev `SignatureType.Wallet` callback, so that this bridge can be the maker
+    ///      and sign for itself in orders. Always succeeds.
+    /// @return magicValue Magic success bytes, always.
+    function isValidSignature(
+        bytes32,
+        bytes calldata
+    )
+        external
+        view
+        returns (bytes4 magicValue)
+    {
+        return LEGACY_WALLET_MAGIC_VALUE;
+    }
+}

contracts/asset-proxy/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-asset-proxy",
-    "version": "3.5.0",
+    "version": "3.6.5",
     "engines": {
         "node": ">=6.12"
     },
@@ -38,7 +38,7 @@
         "docs:json": "typedoc --excludePrivate --excludeExternals --excludeProtected --ignoreCompilerErrors --target ES5 --tsconfig typedoc-tsconfig.json --json $JSON_FILE_PATH $PROJECT_FILES"
     },
     "config": {
-        "abis": "./test/generated-artifacts/@(BalancerBridge|BancorBridge|ChaiBridge|CreamBridge|CurveBridge|DODOBridge|DexForwarderBridge|DydxBridge|ERC1155Proxy|ERC20BridgeProxy|ERC20Proxy|ERC721Proxy|Eth2DaiBridge|IAssetData|IAssetProxy|IAssetProxyDispatcher|IAuthorizable|IBalancerPool|IBancorNetwork|IChai|ICurve|IDydx|IDydxBridge|IERC20Bridge|IEth2Dai|IGasToken|IKyberNetworkProxy|IMStable|IMooniswap|IShell|IUniswapExchange|IUniswapExchangeFactory|IUniswapV2Router01|KyberBridge|MStableBridge|MixinAssetProxyDispatcher|MixinAuthorizable|MixinGasToken|MooniswapBridge|MultiAssetProxy|Ownable|ShellBridge|StaticCallProxy|SushiSwapBridge|TestBancorBridge|TestChaiBridge|TestDexForwarderBridge|TestDydxBridge|TestERC20Bridge|TestEth2DaiBridge|TestKyberBridge|TestStaticCallTarget|TestUniswapBridge|TestUniswapV2Bridge|UniswapBridge|UniswapV2Bridge).json",
+        "abis": "./test/generated-artifacts/@(BalancerBridge|BancorBridge|ChaiBridge|CreamBridge|CurveBridge|DODOBridge|DexForwarderBridge|DydxBridge|ERC1155Proxy|ERC20BridgeProxy|ERC20Proxy|ERC721Proxy|Eth2DaiBridge|IAssetData|IAssetProxy|IAssetProxyDispatcher|IAuthorizable|IBalancerPool|IBancorNetwork|IChai|ICurve|IDydx|IDydxBridge|IERC20Bridge|IEth2Dai|IGasToken|IKyberNetworkProxy|IMStable|IMooniswap|IShell|IUniswapExchange|IUniswapExchangeFactory|IUniswapV2Router01|KyberBridge|MStableBridge|MixinAssetProxyDispatcher|MixinAuthorizable|MixinGasToken|MooniswapBridge|MultiAssetProxy|Ownable|ShellBridge|SnowSwapBridge|StaticCallProxy|SushiSwapBridge|SwerveBridge|TestBancorBridge|TestChaiBridge|TestDexForwarderBridge|TestDydxBridge|TestERC20Bridge|TestEth2DaiBridge|TestKyberBridge|TestStaticCallTarget|TestUniswapBridge|TestUniswapV2Bridge|UniswapBridge|UniswapV2Bridge).json",
         "abis:comment": "This list is auto-generated by contracts-gen. Don't edit manually."
     },
     "repository": {
@@ -51,13 +51,13 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/protocol",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contract-wrappers": "^13.9.0",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contract-wrappers": "^13.10.0",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
         "@types/lodash": "4.14.104",
@@ -79,16 +79,16 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-erc1155": "^2.1.8",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-erc721": "^3.1.8",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/types": "^3.2.4",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-erc1155": "^2.1.14",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-erc721": "^3.1.14",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "ethereum-types": "^3.3.3",
         "lodash": "^4.17.11"
     },

contracts/asset-proxy/src/artifacts.ts

@@ -47,8 +47,10 @@ import * as MStableBridge from '../generated-artifacts/MStableBridge.json';
 import * as MultiAssetProxy from '../generated-artifacts/MultiAssetProxy.json';
 import * as Ownable from '../generated-artifacts/Ownable.json';
 import * as ShellBridge from '../generated-artifacts/ShellBridge.json';
+import * as SnowSwapBridge from '../generated-artifacts/SnowSwapBridge.json';
 import * as StaticCallProxy from '../generated-artifacts/StaticCallProxy.json';
 import * as SushiSwapBridge from '../generated-artifacts/SushiSwapBridge.json';
+import * as SwerveBridge from '../generated-artifacts/SwerveBridge.json';
 import * as TestBancorBridge from '../generated-artifacts/TestBancorBridge.json';
 import * as TestChaiBridge from '../generated-artifacts/TestChaiBridge.json';
 import * as TestDexForwarderBridge from '../generated-artifacts/TestDexForwarderBridge.json';
@@ -85,7 +87,9 @@ export const artifacts = {
     MixinGasToken: MixinGasToken as ContractArtifact,
     MooniswapBridge: MooniswapBridge as ContractArtifact,
     ShellBridge: ShellBridge as ContractArtifact,
+    SnowSwapBridge: SnowSwapBridge as ContractArtifact,
     SushiSwapBridge: SushiSwapBridge as ContractArtifact,
+    SwerveBridge: SwerveBridge as ContractArtifact,
     UniswapBridge: UniswapBridge as ContractArtifact,
     UniswapV2Bridge: UniswapV2Bridge as ContractArtifact,
     IAssetData: IAssetData as ContractArtifact,

contracts/asset-proxy/src/wrappers.ts

@@ -45,8 +45,10 @@ export * from '../generated-wrappers/mooniswap_bridge';
 export * from '../generated-wrappers/multi_asset_proxy';
 export * from '../generated-wrappers/ownable';
 export * from '../generated-wrappers/shell_bridge';
+export * from '../generated-wrappers/snow_swap_bridge';
 export * from '../generated-wrappers/static_call_proxy';
 export * from '../generated-wrappers/sushi_swap_bridge';
+export * from '../generated-wrappers/swerve_bridge';
 export * from '../generated-wrappers/test_bancor_bridge';
 export * from '../generated-wrappers/test_chai_bridge';
 export * from '../generated-wrappers/test_dex_forwarder_bridge';

contracts/asset-proxy/test/artifacts.ts

@@ -47,8 +47,10 @@ import * as MStableBridge from '../test/generated-artifacts/MStableBridge.json';
 import * as MultiAssetProxy from '../test/generated-artifacts/MultiAssetProxy.json';
 import * as Ownable from '../test/generated-artifacts/Ownable.json';
 import * as ShellBridge from '../test/generated-artifacts/ShellBridge.json';
+import * as SnowSwapBridge from '../test/generated-artifacts/SnowSwapBridge.json';
 import * as StaticCallProxy from '../test/generated-artifacts/StaticCallProxy.json';
 import * as SushiSwapBridge from '../test/generated-artifacts/SushiSwapBridge.json';
+import * as SwerveBridge from '../test/generated-artifacts/SwerveBridge.json';
 import * as TestBancorBridge from '../test/generated-artifacts/TestBancorBridge.json';
 import * as TestChaiBridge from '../test/generated-artifacts/TestChaiBridge.json';
 import * as TestDexForwarderBridge from '../test/generated-artifacts/TestDexForwarderBridge.json';
@@ -85,7 +87,9 @@ export const artifacts = {
     MixinGasToken: MixinGasToken as ContractArtifact,
     MooniswapBridge: MooniswapBridge as ContractArtifact,
     ShellBridge: ShellBridge as ContractArtifact,
+    SnowSwapBridge: SnowSwapBridge as ContractArtifact,
     SushiSwapBridge: SushiSwapBridge as ContractArtifact,
+    SwerveBridge: SwerveBridge as ContractArtifact,
     UniswapBridge: UniswapBridge as ContractArtifact,
     UniswapV2Bridge: UniswapV2Bridge as ContractArtifact,
     IAssetData: IAssetData as ContractArtifact,

contracts/asset-proxy/test/wrappers.ts

@@ -45,8 +45,10 @@ export * from '../test/generated-wrappers/mooniswap_bridge';
 export * from '../test/generated-wrappers/multi_asset_proxy';
 export * from '../test/generated-wrappers/ownable';
 export * from '../test/generated-wrappers/shell_bridge';
+export * from '../test/generated-wrappers/snow_swap_bridge';
 export * from '../test/generated-wrappers/static_call_proxy';
 export * from '../test/generated-wrappers/sushi_swap_bridge';
+export * from '../test/generated-wrappers/swerve_bridge';
 export * from '../test/generated-wrappers/test_bancor_bridge';
 export * from '../test/generated-wrappers/test_chai_bridge';
 export * from '../test/generated-wrappers/test_dex_forwarder_bridge';

contracts/asset-proxy/tsconfig.json

@@ -45,8 +45,10 @@
         "generated-artifacts/MultiAssetProxy.json",
         "generated-artifacts/Ownable.json",
         "generated-artifacts/ShellBridge.json",
+        "generated-artifacts/SnowSwapBridge.json",
         "generated-artifacts/StaticCallProxy.json",
         "generated-artifacts/SushiSwapBridge.json",
+        "generated-artifacts/SwerveBridge.json",
         "generated-artifacts/TestBancorBridge.json",
         "generated-artifacts/TestChaiBridge.json",
         "generated-artifacts/TestDexForwarderBridge.json",
@@ -101,8 +103,10 @@
         "test/generated-artifacts/MultiAssetProxy.json",
         "test/generated-artifacts/Ownable.json",
         "test/generated-artifacts/ShellBridge.json",
+        "test/generated-artifacts/SnowSwapBridge.json",
         "test/generated-artifacts/StaticCallProxy.json",
         "test/generated-artifacts/SushiSwapBridge.json",
+        "test/generated-artifacts/SwerveBridge.json",
         "test/generated-artifacts/TestBancorBridge.json",
         "test/generated-artifacts/TestChaiBridge.json",
         "test/generated-artifacts/TestDexForwarderBridge.json",

contracts/broker/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "1.1.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "1.1.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "1.1.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "1.1.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "1.1.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "1.1.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "1.1.7",

contracts/broker/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v1.1.13 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v1.1.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v1.1.11 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v1.1.10 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v1.1.9 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v1.1.8 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v1.1.7 - _October 21, 2020_
 
     * Dependencies updated

contracts/broker/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-broker",
-    "version": "1.1.7",
+    "version": "1.1.13",
     "engines": {
         "node": ">=6.12"
     },
@@ -51,20 +51,20 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/extensions",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-erc721": "^3.1.8",
-        "@0x/contracts-exchange": "^3.2.8",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-erc721": "^3.1.14",
+        "@0x/contracts-exchange": "^3.2.14",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/types": "^3.3.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -84,10 +84,10 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/order-utils": "^10.4.0",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/order-utils": "^10.4.6",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
+        "@0x/utils": "^6.1.0",
         "ethereum-types": "^3.3.3"
     },
     "publishConfig": {

contracts/coordinator/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "3.1.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "3.1.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "3.1.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "3.1.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "3.1.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "3.1.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "3.1.8",

contracts/coordinator/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v3.1.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v3.1.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.1.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.1.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v3.1.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v3.1.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v3.1.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/coordinator/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-coordinator",
-    "version": "3.1.8",
+    "version": "3.1.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,17 +52,17 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/extensions",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-dev-utils": "^1.3.6",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-dev-utils": "^1.3.12",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -82,16 +82,16 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/assert": "^3.0.13",
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contract-addresses": "^4.12.0",
-        "@0x/contracts-exchange": "^3.2.8",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/json-schemas": "^5.2.3",
-        "@0x/types": "^3.2.4",
+        "@0x/assert": "^3.0.17",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contract-addresses": "^5.3.0",
+        "@0x/contracts-exchange": "^3.2.14",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/json-schemas": "^5.3.3",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
+        "@0x/utils": "^6.1.0",
         "ethereum-types": "^3.3.3",
         "http-status-codes": "^1.3.2"
     },

contracts/dev-utils/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "1.3.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "1.3.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "1.3.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "1.3.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "1.3.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "1.3.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "1.3.6",

contracts/dev-utils/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v1.3.12 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v1.3.11 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v1.3.10 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v1.3.9 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v1.3.8 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v1.3.7 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v1.3.6 - _October 21, 2020_
 
     * Dependencies updated

contracts/dev-utils/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-dev-utils",
-    "version": "1.3.6",
+    "version": "1.3.12",
     "engines": {
         "node": ">=6.12"
     },
@@ -41,17 +41,17 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/dev-utils",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/assert": "^3.0.13",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/assert": "^3.0.17",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/utils": "^5.6.3",
+        "@0x/types": "^3.3.0",
+        "@0x/utils": "^6.1.0",
         "ethereum-types": "^3.3.3",
         "ethers": "~4.0.4",
         "npm-run-all": "^4.1.2",
@@ -63,7 +63,7 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
+        "@0x/base-contract": "^6.2.11",
         "@types/node": "12.12.54"
     },
     "publishConfig": {

contracts/erc1155/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "2.1.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "2.1.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "2.1.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "2.1.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "2.1.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "2.1.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "2.1.8",

contracts/erc1155/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v2.1.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v2.1.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v2.1.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v2.1.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v2.1.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v2.1.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v2.1.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/erc1155/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-erc1155",
-    "version": "2.1.8",
+    "version": "2.1.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,14 +52,14 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/tokens",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
@@ -80,10 +80,10 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "lodash": "^4.17.11"
     },
     "publishConfig": {

contracts/erc20/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "3.2.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "3.2.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "3.2.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "3.2.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "3.2.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "3.2.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "3.2.2",

contracts/erc20/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v3.2.8 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v3.2.7 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.2.6 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.2.5 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v3.2.4 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v3.2.3 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v3.2.2 - _October 21, 2020_
 
     * Dependencies updated

contracts/erc20/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-erc20",
-    "version": "3.2.2",
+    "version": "3.2.8",
     "engines": {
         "node": ">=6.12"
     },
@@ -51,18 +51,18 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/tokens",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -82,7 +82,7 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7"
+        "@0x/base-contract": "^6.2.11"
     },
     "publishConfig": {
         "access": "public"

contracts/erc721/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "3.1.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "3.1.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "3.1.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "3.1.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "3.1.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "3.1.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "3.1.8",

contracts/erc721/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v3.1.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v3.1.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.1.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.1.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v3.1.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v3.1.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v3.1.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/erc721/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-erc721",
-    "version": "3.1.8",
+    "version": "3.1.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,18 +52,18 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/tokens",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -84,7 +84,7 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7"
+        "@0x/base-contract": "^6.2.11"
     },
     "publishConfig": {
         "access": "public"

contracts/exchange-forwarder/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "4.2.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "4.2.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "4.2.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "4.2.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "4.2.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "4.2.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "4.2.8",

contracts/exchange-forwarder/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v4.2.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v4.2.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.2.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.2.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v4.2.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v4.2.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v4.2.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/exchange-forwarder/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-exchange-forwarder",
-    "version": "4.2.8",
+    "version": "4.2.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,25 +52,25 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/extensions",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-dev-utils": "^1.3.6",
-        "@0x/contracts-erc1155": "^2.1.8",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-erc721": "^3.1.8",
-        "@0x/contracts-exchange": "^3.2.8",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-dev-utils": "^1.3.12",
+        "@0x/contracts-erc1155": "^2.1.14",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-erc721": "^3.1.14",
+        "@0x/contracts-exchange": "^3.2.14",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/types": "^3.3.0",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -90,7 +90,7 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
+        "@0x/base-contract": "^6.2.11",
         "@0x/typescript-typings": "^5.1.5",
         "ethereum-types": "^3.3.3"
     },

contracts/exchange-libs/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "4.3.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "4.3.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "4.3.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "4.3.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "4.3.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "4.3.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "4.3.8",

contracts/exchange-libs/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v4.3.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v4.3.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.3.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.3.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v4.3.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v4.3.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v4.3.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/exchange-libs/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-exchange-libs",
-    "version": "4.3.8",
+    "version": "4.3.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,14 +52,14 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/libs",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
-        "@0x/subproviders": "^6.1.5",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
+        "@0x/subproviders": "^6.1.9",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -80,13 +80,13 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/types": "^3.2.4",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
+        "@0x/utils": "^6.1.0",
         "ethereum-types": "^3.3.3"
     },
     "publishConfig": {

contracts/exchange/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "3.2.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "3.2.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "3.2.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "3.2.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "3.2.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "3.2.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "3.2.8",

contracts/exchange/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v3.2.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v3.2.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.2.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v3.2.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v3.2.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v3.2.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v3.2.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/exchange/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-exchange",
-    "version": "3.2.8",
+    "version": "3.2.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,21 +52,21 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/protocol",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-multisig": "^4.1.8",
-        "@0x/contracts-staking": "^2.0.15",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-multisig": "^4.1.14",
+        "@0x/contracts-staking": "^2.0.21",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -88,13 +88,13 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-dev-utils": "^1.3.6",
-        "@0x/contracts-erc1155": "^2.1.8",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-erc721": "^3.1.8",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/utils": "^5.6.3",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-dev-utils": "^1.3.12",
+        "@0x/contracts-erc1155": "^2.1.14",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-erc721": "^3.1.14",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/utils": "^6.1.0",
         "lodash": "^4.17.11"
     },
     "publishConfig": {

contracts/extensions/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "6.2.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "6.2.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "6.2.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "6.2.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "6.2.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "6.2.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "6.2.2",

contracts/extensions/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v6.2.8 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v6.2.7 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v6.2.6 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v6.2.5 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v6.2.4 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v6.2.3 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v6.2.2 - _October 21, 2020_
 
     * Dependencies updated

contracts/extensions/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-extensions",
-    "version": "6.2.2",
+    "version": "6.2.8",
     "engines": {
         "node": ">=6.12"
     },
@@ -52,23 +52,23 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/extensions",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-dev-utils": "^1.3.6",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-erc721": "^3.1.8",
-        "@0x/contracts-exchange": "^3.2.8",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-dev-utils": "^1.3.12",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-erc721": "^3.1.14",
+        "@0x/contracts-exchange": "^3.2.14",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/types": "^3.3.0",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -90,8 +90,8 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-test-utils": "^5.3.5",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-test-utils": "^5.3.11",
         "@0x/typescript-typings": "^5.1.5",
         "ethereum-types": "^3.3.3"
     },

contracts/integrations/CHANGELOG.json

@@ -1,4 +1,76 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "2.7.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604620645,
+        "version": "2.7.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "2.7.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "2.7.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "2.7.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "2.7.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "2.7.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603487270,
+        "version": "2.7.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "version": "2.7.0",
         "changes": [

contracts/integrations/CHANGELOG.md

@@ -5,6 +5,38 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v2.7.8 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v2.7.7 - _November 5, 2020_
+
+    * Dependencies updated
+
+## v2.7.6 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v2.7.5 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v2.7.4 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v2.7.3 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v2.7.2 - _October 27, 2020_
+
+    * Dependencies updated
+
+## v2.7.1 - _October 23, 2020_
+
+    * Dependencies updated
+
 ## v2.7.0 - _October 21, 2020_
 
     * Update curveBridge tests (#2633)

contracts/integrations/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-integrations",
-    "version": "2.7.0",
+    "version": "2.7.8",
     "engines": {
         "node": ">=6.12"
     },
@@ -51,24 +51,24 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/extensions",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contract-addresses": "^4.12.0",
-        "@0x/contract-wrappers": "^13.9.0",
-        "@0x/contracts-broker": "^1.1.7",
-        "@0x/contracts-coordinator": "^3.1.8",
-        "@0x/contracts-dev-utils": "^1.3.6",
-        "@0x/contracts-exchange-forwarder": "^4.2.8",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/contracts-extensions": "^6.2.2",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-utils": "^4.5.2",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contract-addresses": "^5.3.0",
+        "@0x/contract-wrappers": "^13.10.0",
+        "@0x/contracts-broker": "^1.1.13",
+        "@0x/contracts-coordinator": "^3.1.14",
+        "@0x/contracts-dev-utils": "^1.3.12",
+        "@0x/contracts-exchange-forwarder": "^4.2.14",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/contracts-extensions": "^6.2.8",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-utils": "^4.5.8",
         "@0x/coordinator-server": "^1.0.5",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/migrations": "^6.4.1",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/migrations": "^6.5.0",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/web3-wrapper": "^7.2.8",
         "@azure/core-asynciterator-polyfill": "^1.0.0",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
@@ -91,21 +91,21 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/asset-swapper": "0xProject/gitpkg-registry#0x-asset-swapper-v4.6.0-36546480b",
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-erc1155": "^2.1.8",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-erc721": "^3.1.8",
-        "@0x/contracts-exchange": "^3.2.8",
-        "@0x/contracts-multisig": "^4.1.8",
-        "@0x/contracts-staking": "^2.0.15",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-zero-ex": "^0.3.0",
-        "@0x/subproviders": "^6.1.5",
-        "@0x/types": "^3.2.4",
+        "@0x/asset-swapper": "^5.1.0",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-erc1155": "^2.1.14",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-erc721": "^3.1.14",
+        "@0x/contracts-exchange": "^3.2.14",
+        "@0x/contracts-multisig": "^4.1.14",
+        "@0x/contracts-staking": "^2.0.21",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-zero-ex": "^0.9.0",
+        "@0x/subproviders": "^6.1.9",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
+        "@0x/utils": "^6.1.0",
         "ethereum-types": "^3.3.3",
         "ethereumjs-util": "^6.2.0",
         "lodash": "^4.17.11"

contracts/multisig/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "4.1.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "4.1.13",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "4.1.12",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "4.1.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "4.1.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "4.1.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "4.1.8",

contracts/multisig/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v4.1.14 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v4.1.13 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.1.12 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.1.11 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v4.1.10 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v4.1.9 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v4.1.8 - _October 21, 2020_
 
     * Dependencies updated

contracts/multisig/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-multisig",
-    "version": "4.1.8",
+    "version": "4.1.14",
     "engines": {
         "node": ">=6.12"
     },
@@ -49,18 +49,18 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/multisig",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/types": "^3.3.0",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
         "@types/node": "12.12.54",
@@ -78,7 +78,7 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
+        "@0x/base-contract": "^6.2.11",
         "@0x/typescript-typings": "^5.1.5",
         "ethereum-types": "^3.3.3"
     },

contracts/staking/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "2.0.21",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "2.0.20",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "2.0.19",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "2.0.18",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "2.0.17",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "2.0.16",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "2.0.15",

contracts/staking/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v2.0.21 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v2.0.20 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v2.0.19 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v2.0.18 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v2.0.17 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v2.0.16 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v2.0.15 - _October 21, 2020_
 
     * Dependencies updated

contracts/staking/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-staking",
-    "version": "2.0.15",
+    "version": "2.0.21",
     "engines": {
         "node": ">=6.12"
     },
@@ -53,20 +53,20 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/tokens",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-asset-proxy": "^3.5.0",
-        "@0x/contracts-dev-utils": "^1.3.6",
-        "@0x/contracts-erc20": "^3.2.2",
-        "@0x/contracts-exchange-libs": "^4.3.8",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-utils": "^4.5.2",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-asset-proxy": "^3.6.5",
+        "@0x/contracts-dev-utils": "^1.3.12",
+        "@0x/contracts-erc20": "^3.2.8",
+        "@0x/contracts-exchange-libs": "^4.3.14",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-utils": "^4.5.8",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/ts-doc-gen": "^0.0.28",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/types": "^3.3.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/lodash": "4.14.104",
         "@types/node": "12.12.54",
         "chai": "^4.0.1",
@@ -87,10 +87,10 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contracts-test-utils": "^5.3.5",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contracts-test-utils": "^5.3.11",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
+        "@0x/utils": "^6.1.0",
         "ethereum-types": "^3.3.3",
         "ethereumjs-util": "^5.1.1"
     },

contracts/test-utils/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "5.3.11",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "5.3.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "5.3.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "5.3.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "5.3.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "5.3.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "timestamp": 1603265572,
         "version": "5.3.5",

contracts/test-utils/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v5.3.11 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v5.3.10 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v5.3.9 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v5.3.8 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v5.3.7 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v5.3.6 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v5.3.5 - _October 21, 2020_
 
     * Dependencies updated

contracts/test-utils/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-test-utils",
-    "version": "5.3.5",
+    "version": "5.3.11",
     "engines": {
         "node": ">=6.12"
     },
@@ -34,7 +34,7 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/test-utils",
     "devDependencies": {
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/tslint-config": "^4.1.3",
         "npm-run-all": "^4.1.2",
         "shx": "^0.2.2",
@@ -42,20 +42,20 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/assert": "^3.0.13",
-        "@0x/base-contract": "^6.2.7",
-        "@0x/contract-addresses": "^4.12.0",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/json-schemas": "^5.2.3",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-coverage": "^4.0.14",
-        "@0x/sol-profiler": "^4.1.4",
-        "@0x/sol-trace": "^3.0.14",
-        "@0x/subproviders": "^6.1.5",
-        "@0x/types": "^3.2.4",
+        "@0x/assert": "^3.0.17",
+        "@0x/base-contract": "^6.2.11",
+        "@0x/contract-addresses": "^5.3.0",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/json-schemas": "^5.3.3",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-coverage": "^4.0.18",
+        "@0x/sol-profiler": "^4.1.8",
+        "@0x/sol-trace": "^3.0.18",
+        "@0x/subproviders": "^6.1.9",
+        "@0x/types": "^3.3.0",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/utils": "^6.1.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/bn.js": "^4.11.0",
         "@types/js-combinatorics": "^0.5.29",
         "@types/lodash": "4.14.104",

contracts/utils/CHANGELOG.json

@@ -1,4 +1,58 @@
 [
+    {
+        "timestamp": 1605302002,
+        "version": "4.5.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604385937,
+        "version": "4.5.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604376968,
+        "version": "4.5.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1604355662,
+        "version": "4.5.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "4.5.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1603833198,
+        "version": "4.5.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
     {
         "version": "4.5.2",
         "changes": [

contracts/utils/CHANGELOG.md

@@ -5,6 +5,30 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v4.5.8 - _November 13, 2020_
+
+    * Dependencies updated
+
+## v4.5.7 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.5.6 - _November 3, 2020_
+
+    * Dependencies updated
+
+## v4.5.5 - _November 2, 2020_
+
+    * Dependencies updated
+
+## v4.5.4 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v4.5.3 - _October 27, 2020_
+
+    * Dependencies updated
+
 ## v4.5.2 - _October 21, 2020_
 
     * Add Ropsten and Rinkeby addresses to `DeploymentConstants` (#2656)

contracts/utils/contracts/src/DeploymentConstants.sol

@@ -56,8 +56,6 @@ contract DeploymentConstants {
     address constant private MUSD_ADDRESS = 0xe2f2a5C287993345a840Db3B0845fbC70f5935a5;
     /// @dev Mainnet address of the Mooniswap Registry contract
     address constant private MOONISWAP_REGISTRY = 0x71CD6666064C3A1354a3B4dca5fA1E2D3ee7D303;
-    /// @dev Mainnet address of the Shell contract
-    address constant private SHELL_CONTRACT = 0x2E703D658f8dd21709a7B458967aB4081F8D3d05;
     /// @dev Mainnet address of the DODO Registry (ZOO) contract
     address constant private DODO_REGISTRY = 0x3A97247DF274a17C59A3bd12735ea3FcDFb49950;
     /// @dev Mainnet address of the DODO Helper contract
@@ -303,16 +301,6 @@ contract DeploymentConstants {
         return MOONISWAP_REGISTRY;
     }
 
-    /// @dev An overridable way to retrieve the Shell contract address.
-    /// @return registry The Shell contract address.
-    function _getShellAddress()
-        internal
-        view
-        returns (address)
-    {
-        return SHELL_CONTRACT;
-    }
-
     /// @dev An overridable way to retrieve the DODO Registry contract address.
     /// @return registry The DODO Registry contract address.
     function _getDODORegistryAddress()

contracts/utils/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-utils",
-    "version": "4.5.2",
+    "version": "4.5.8",
     "engines": {
         "node": ">=6.12"
     },
@@ -50,15 +50,15 @@
     },
     "homepage": "https://github.com/0xProject/protocol/tree/main/contracts/utils",
     "devDependencies": {
-        "@0x/abi-gen": "^5.4.3",
-        "@0x/contracts-gen": "2.0.13",
-        "@0x/contracts-test-utils": "^5.3.5",
-        "@0x/dev-utils": "^3.3.4",
-        "@0x/order-utils": "^10.4.0",
-        "@0x/sol-compiler": "^4.2.3",
+        "@0x/abi-gen": "^5.4.7",
+        "@0x/contracts-gen": "2.0.18",
+        "@0x/contracts-test-utils": "^5.3.11",
+        "@0x/dev-utils": "^4.0.1",
+        "@0x/order-utils": "^10.4.6",
+        "@0x/sol-compiler": "^4.2.7",
         "@0x/tslint-config": "^4.1.3",
-        "@0x/types": "^3.2.4",
-        "@0x/web3-wrapper": "^7.2.4",
+        "@0x/types": "^3.3.0",
+        "@0x/web3-wrapper": "^7.2.8",
         "@types/bn.js": "^4.11.0",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^5.2.7",
@@ -79,9 +79,9 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0x/base-contract": "^6.2.7",
+        "@0x/base-contract": "^6.2.11",
         "@0x/typescript-typings": "^5.1.5",
-        "@0x/utils": "^5.6.3",
+        "@0x/utils": "^6.1.0",
         "bn.js": "^4.11.8",
         "ethereum-types": "^3.3.3"
     },

contracts/zero-ex/CHANGELOG.json

@@ -1,4 +1,93 @@
 [
+    {
+        "version": "0.9.0",
+        "changes": [
+            {
+                "note": "Rewrite the ZeroEx contract in Yul",
+                "pr": 23
+            },
+            {
+                "note": "Update LiquidityProviderFeature to use off-chain registry and sandbox",
+                "pr": 16
+            },
+            {
+                "note": "Update ILiquidityProvider interface",
+                "pr": 16
+            },
+            {
+                "note": "Update ProtocolFeeUnfunded event to emit order hash",
+                "pr": 16
+            }
+        ],
+        "timestamp": 1605302002
+    },
+    {
+        "version": "0.8.0",
+        "changes": [
+            {
+                "note": "Trust LP boughtAmount return value",
+                "pr": 29
+            }
+        ],
+        "timestamp": 1604385937
+    },
+    {
+        "version": "0.7.0",
+        "changes": [
+            {
+                "note": "Change `ProtocolFeeUnfunded` event in FQT",
+                "pr": 28
+            },
+            {
+                "note": "Use new PLP interface in FQT.",
+                "pr": 28
+            }
+        ],
+        "timestamp": 1604376968
+    },
+    {
+        "version": "0.6.0",
+        "changes": [
+            {
+                "note": "Add support for collecting protocol fees in ETH or WETH",
+                "pr": 2
+            },
+            {
+                "note": "Add `LibSignature` library",
+                "pr": 21
+            }
+        ],
+        "timestamp": 1604355662
+    },
+    {
+        "timestamp": 1603851023,
+        "version": "0.5.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "0.5.0",
+        "changes": [
+            {
+                "note": "Add `Swerve`, `SnowSwap`, `DODO` and `SushiSwap` into FQT",
+                "pr": 7
+            }
+        ],
+        "timestamp": 1603833198
+    },
+    {
+        "version": "0.4.0",
+        "changes": [
+            {
+                "note": "Use the exchange proxy as the primary allowance target",
+                "pr": 3
+            }
+        ],
+        "timestamp": 1603487270
+    },
     {
         "version": "0.3.0",
         "changes": [

contracts/zero-ex/CHANGELOG.md

@@ -5,6 +5,39 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.9.0 - _November 13, 2020_
+
+    * Rewrite the ZeroEx contract in Yul (#23)
+    * Update LiquidityProviderFeature to use off-chain registry and sandbox (#16)
+    * Update ILiquidityProvider interface (#16)
+    * Update ProtocolFeeUnfunded event to emit order hash (#16)
+
+## v0.8.0 - _November 3, 2020_
+
+    * Trust LP boughtAmount return value (#29)
+
+## v0.7.0 - _November 3, 2020_
+
+    * Change `ProtocolFeeUnfunded` event in FQT (#28)
+    * Use new PLP interface in FQT. (#28)
+
+## v0.6.0 - _November 2, 2020_
+
+    * Add support for collecting protocol fees in ETH or WETH (#2)
+    * Add `LibSignature` library (#21)
+
+## v0.5.1 - _October 28, 2020_
+
+    * Dependencies updated
+
+## v0.5.0 - _October 27, 2020_
+
+    * Add `Swerve`, `SnowSwap`, `DODO` and `SushiSwap` into FQT (#7)
+
+## v0.4.0 - _October 23, 2020_
+
+    * Use the exchange proxy as the primary allowance target (#3)
+
 ## v0.3.0 - _October 21, 2020_
 
     * Internal audit fixes (#2657)

contracts/zero-ex/contracts/src/IZeroEx.sol

@@ -44,14 +44,4 @@ interface IZeroEx is
 
     /// @dev Fallback for just receiving ether.
     receive() external payable;
-
-    // solhint-enable state-visibility
-
-    /// @dev Get the implementation contract of a registered function.
-    /// @param selector The function selector.
-    /// @return impl The implementation contract address.
-    function getFunctionImplementation(bytes4 selector)
-        external
-        view
-        returns (address impl);
 }

contracts/zero-ex/contracts/src/ZeroEx.sol

@@ -19,19 +19,12 @@
 pragma solidity ^0.6.5;
 pragma experimental ABIEncoderV2;
 
-import "@0x/contracts-utils/contracts/src/v06/LibBytesV06.sol";
-import "./migrations/LibBootstrap.sol";
 import "./features/BootstrapFeature.sol";
 import "./storage/LibProxyStorage.sol";
-import "./errors/LibProxyRichErrors.sol";
-
 
 /// @dev An extensible proxy contract that serves as a universal entry point for
 ///      interacting with the 0x protocol.
 contract ZeroEx {
-    // solhint-disable separate-by-one-line-in-contract,indent,var-name-mixedcase
-    using LibBytesV06 for bytes;
-
     /// @dev Construct this contract and register the `BootstrapFeature` feature.
     ///      After constructing this contract, `bootstrap()` should be called
     ///      by `bootstrap()` to seed the initial feature set.
@@ -44,48 +37,55 @@ contract ZeroEx {
             address(bootstrap);
     }
 
+
     // solhint-disable state-visibility
 
     /// @dev Forwards calls to the appropriate implementation contract.
     fallback() external payable {
-        bytes4 selector = msg.data.readBytes4(0);
-        address impl = getFunctionImplementation(selector);
-        if (impl == address(0)) {
-            _revertWithData(LibProxyRichErrors.NotImplementedError(selector));
+        // This is used in assembly below as impls_slot.
+        mapping(bytes4 => address) storage impls =
+            LibProxyStorage.getStorage().impls;
+
+        assembly {
+            let cdlen := calldatasize()
+
+            // equivalent of receive() external payable {}
+            if iszero(cdlen) {
+                return(0, 0)
+            }
+
+            // Store at 0x40, to leave 0x00-0x3F for slot calculation below.
+            calldatacopy(0x40, 0, cdlen)
+            let selector := and(mload(0x40), 0xFFFFFFFF00000000000000000000000000000000000000000000000000000000)
+
+            // Slot for impls[selector] is keccak256(selector . impls_slot).
+            mstore(0, selector)
+            mstore(0x20, impls_slot)
+            let slot := keccak256(0, 0x40)
+
+            let delegate := sload(slot)
+            if iszero(delegate) {
+                // Revert with:
+                // abi.encodeWithSelector(
+                //   bytes4(keccak256("NotImplementedError(bytes4)")),
+                //   selector)
+                mstore(0, 0x734e6e1c00000000000000000000000000000000000000000000000000000000)
+                mstore(4, selector)
+                revert(0, 0x24)
+            }
+
+            let success := delegatecall(
+                gas(),
+                delegate,
+                0x40, cdlen,
+                0, 0
+            )
+            let rdlen := returndatasize()
+            returndatacopy(0, 0, rdlen)
+            if success {
+                return(0, rdlen)
+            }
+            revert(0, rdlen)
         }
-
-        (bool success, bytes memory resultData) = impl.delegatecall(msg.data);
-        if (!success) {
-            _revertWithData(resultData);
-        }
-        _returnWithData(resultData);
-    }
-
-    /// @dev Fallback for just receiving ether.
-    receive() external payable {}
-
-    // solhint-enable state-visibility
-
-    /// @dev Get the implementation contract of a registered function.
-    /// @param selector The function selector.
-    /// @return impl The implementation contract address.
-    function getFunctionImplementation(bytes4 selector)
-        public
-        view
-        returns (address impl)
-    {
-        return LibProxyStorage.getStorage().impls[selector];
-    }
-
-    /// @dev Revert with arbitrary bytes.
-    /// @param data Revert data.
-    function _revertWithData(bytes memory data) private pure {
-        assembly { revert(add(data, 32), mload(data)) }
-    }
-
-    /// @dev Return with arbitrary bytes.
-    /// @param data Return data.
-    function _returnWithData(bytes memory data) private pure {
-        assembly { return(add(data, 32), mload(data)) }
     }
 }

contracts/zero-ex/contracts/src/errors/LibLiquidityProviderRichErrors.sol

@@ -45,19 +45,4 @@ library LibLiquidityProviderRichErrors {
             minBuyAmount
         );
     }
-
-    function NoLiquidityProviderForMarketError(
-        address xAsset,
-        address yAsset
-    )
-        internal
-        pure
-        returns (bytes memory)
-    {
-        return abi.encodeWithSelector(
-            bytes4(keccak256("NoLiquidityProviderForMarketError(address,address)")),
-            xAsset,
-            yAsset
-        );
-    }
 }

contracts/zero-ex/contracts/src/errors/LibSignatureRichErrors.sol

@@ -26,7 +26,8 @@ library LibSignatureRichErrors {
         INVALID_LENGTH,
         UNSUPPORTED,
         ILLEGAL,
-        WRONG_SIGNER
+        WRONG_SIGNER,
+        BAD_SIGNATURE_DATA
     }
 
     // solhint-disable func-name-mixedcase
@@ -49,4 +50,19 @@ library LibSignatureRichErrors {
             signature
         );
     }
+
+    function SignatureValidationError(
+        SignatureValidationErrorCodes code,
+        bytes32 hash
+    )
+        internal
+        pure
+        returns (bytes memory)
+    {
+        return abi.encodeWithSelector(
+            bytes4(keccak256("SignatureValidationError(uint8,bytes32)")),
+            code,
+            hash
+        );
+    }
 }

contracts/zero-ex/contracts/src/external/FeeCollector.sol

@@ -0,0 +1,65 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/IEtherTokenV06.sol";
+import "@0x/contracts-utils/contracts/src/v06/AuthorizableV06.sol";
+import "../vendor/v3/IStaking.sol";
+
+/// @dev The collector contract for protocol fees
+contract FeeCollector is AuthorizableV06 {
+    /// @dev Allow ether transfers to the collector.
+    receive() external payable { }
+
+    constructor() public {
+        _addAuthorizedAddress(msg.sender);
+    }
+
+    /// @dev   Approve the staking contract and join a pool. Only an authority
+    ///        can call this.
+    /// @param weth The WETH contract.
+    /// @param staking The staking contract.
+    /// @param poolId The pool ID this contract is collecting fees for.
+    function initialize(
+        IEtherTokenV06 weth,
+        IStaking staking,
+        bytes32 poolId
+    )
+        external
+        onlyAuthorized
+    {
+        weth.approve(address(staking), type(uint256).max);
+        staking.joinStakingPoolAsMaker(poolId);
+    }
+
+    /// @dev Convert all held ether to WETH. Only an authority can call this.
+    /// @param weth The WETH contract.
+    function convertToWeth(
+        IEtherTokenV06 weth
+    )
+        external
+        onlyAuthorized
+    {
+        // Leave 1 wei behind to avoid expensive zero-->non-zero state change.
+        if (address(this).balance > 1) {
+            weth.deposit{value: address(this).balance - 1}();
+        }
+    }
+}

contracts/zero-ex/contracts/src/external/ILiquidityProviderSandbox.sol

@@ -0,0 +1,74 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+
+interface ILiquidityProviderSandbox {
+
+    /// @dev Calls `sellTokenForToken` on the given `provider` contract to
+    ///      trigger a trade.
+    /// @param provider The address of the on-chain liquidity provider.
+    /// @param inputToken The token being sold.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    function executeSellTokenForToken(
+        address provider,
+        address inputToken,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external;
+
+    /// @dev Calls `sellEthForToken` on the given `provider` contract to
+    ///      trigger a trade.
+    /// @param provider The address of the on-chain liquidity provider.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    function executeSellEthForToken(
+        address provider,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external;
+
+    /// @dev Calls `sellTokenForEth` on the given `provider` contract to
+    ///      trigger a trade.
+    /// @param provider The address of the on-chain liquidity provider.
+    /// @param inputToken The token being sold.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of ETH to buy.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    function executeSellTokenForEth(
+        address provider,
+        address inputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external;
+}

contracts/zero-ex/contracts/src/external/LiquidityProviderSandbox.sol

@@ -0,0 +1,139 @@
+/*
+  Copyright 2020 ZeroEx Intl.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-utils/contracts/src/v06/errors/LibRichErrorsV06.sol";
+import "@0x/contracts-utils/contracts/src/v06/errors/LibOwnableRichErrorsV06.sol";
+import "../vendor/ILiquidityProvider.sol";
+import "../vendor/v3/IERC20Bridge.sol";
+import "./ILiquidityProviderSandbox.sol";
+
+
+/// @dev A permissionless contract through which the ZeroEx contract can
+///      safely trigger a trade on an external `ILiquidityProvider` contract.
+contract LiquidityProviderSandbox is
+    ILiquidityProviderSandbox
+{
+    using LibRichErrorsV06 for bytes;
+
+    /// @dev Store the owner as an immutable.
+    address public immutable owner;
+
+    constructor(address owner_)
+        public
+    {
+        owner = owner_;
+    }
+
+    /// @dev Allows only the (immutable) owner to call a function.
+    modifier onlyOwner() virtual {
+        if (msg.sender != owner) {
+            LibOwnableRichErrorsV06.OnlyOwnerError(
+                msg.sender,
+                owner
+            ).rrevert();
+        }
+        _;
+    }
+
+    /// @dev Calls `sellTokenForToken` on the given `provider` contract to
+    ///      trigger a trade.
+    /// @param provider The address of the on-chain liquidity provider.
+    /// @param inputToken The token being sold.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    function executeSellTokenForToken(
+        address provider,
+        address inputToken,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        onlyOwner
+        override
+    {
+        try ILiquidityProvider(provider).sellTokenForToken(
+            inputToken,
+            outputToken,
+            recipient,
+            minBuyAmount,
+            auxiliaryData
+        ) {} catch {
+            IERC20Bridge(provider).bridgeTransferFrom(
+                outputToken,
+                provider,
+                recipient,
+                minBuyAmount,
+                auxiliaryData
+            );
+        }
+    }
+
+    /// @dev Calls `sellEthForToken` on the given `provider` contract to
+    ///      trigger a trade.
+    /// @param provider The address of the on-chain liquidity provider.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    function executeSellEthForToken(
+        address provider,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        onlyOwner
+        override
+    {
+        ILiquidityProvider(provider).sellEthForToken(
+            outputToken,
+            recipient,
+            minBuyAmount,
+            auxiliaryData
+        );
+    }
+
+    /// @dev Calls `sellTokenForEth` on the given `provider` contract to
+    ///      trigger a trade.
+    /// @param provider The address of the on-chain liquidity provider.
+    /// @param inputToken The token being sold.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of ETH to buy.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    function executeSellTokenForEth(
+        address provider,
+        address inputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        onlyOwner
+        override
+    {
+        ILiquidityProvider(provider).sellTokenForEth(
+            inputToken,
+            payable(recipient),
+            minBuyAmount,
+            auxiliaryData
+        );
+    }
+}

contracts/zero-ex/contracts/src/features/ILiquidityProviderFeature.sol

@@ -22,45 +22,30 @@ pragma experimental ABIEncoderV2;
 
 /// @dev Feature to swap directly with an on-chain liquidity provider.
 interface ILiquidityProviderFeature {
-    event LiquidityProviderForMarketUpdated(
-        address indexed xAsset,
-        address indexed yAsset,
-        address providerAddress
-    );
 
+    /// @dev Sells `sellAmount` of `inputToken` to the liquidity provider
+    ///      at the given `provider` address.
+    /// @param inputToken The token being sold.
+    /// @param outputToken The token being bought.
+    /// @param provider The address of the on-chain liquidity provider
+    ///        to trade with.
+    /// @param recipient The recipient of the bought tokens. If equal to
+    ///        address(0), `msg.sender` is assumed to be the recipient.
+    /// @param sellAmount The amount of `inputToken` to sell.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to
+    ///        buy. Reverts if this amount is not satisfied.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    /// @return boughtAmount The amount of `outputToken` bought.
     function sellToLiquidityProvider(
-        address makerToken,
-        address takerToken,
-        address payable recipient,
+        address inputToken,
+        address outputToken,
+        address payable provider,
+        address recipient,
         uint256 sellAmount,
-        uint256 minBuyAmount
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
     )
         external
         payable
         returns (uint256 boughtAmount);
-
-    /// @dev Sets address of the liquidity provider for a market given
-    ///      (xAsset, yAsset).
-    /// @param xAsset First asset managed by the liquidity provider.
-    /// @param yAsset Second asset managed by the liquidity provider.
-    /// @param providerAddress Address of the liquidity provider.
-    function setLiquidityProviderForMarket(
-        address xAsset,
-        address yAsset,
-        address providerAddress
-    )
-        external;
-
-    /// @dev Returns the address of the liquidity provider for a market given
-    ///     (xAsset, yAsset), or reverts if pool does not exist.
-    /// @param xAsset First asset managed by the liquidity provider.
-    /// @param yAsset Second asset managed by the liquidity provider.
-    /// @return providerAddress Address of the liquidity provider.
-    function getLiquidityProviderForMarket(
-        address xAsset,
-        address yAsset
-    )
-        external
-        view
-        returns (address providerAddress);
 }

contracts/zero-ex/contracts/src/features/ISimpleFunctionRegistryFeature.sol

@@ -57,4 +57,12 @@ interface ISimpleFunctionRegistryFeature {
         external
         view
         returns (address impl);
+
+    /// @dev Get the implementation contract of a registered function.
+    /// @param selector The function selector.
+    /// @return impl The implementation contract address.
+    function getFunctionImplementation(bytes4 selector)
+        external
+        view
+        returns (address impl);
 }

contracts/zero-ex/contracts/src/features/LiquidityProviderFeature.sol

@@ -20,18 +20,16 @@ pragma solidity ^0.6.5;
 pragma experimental ABIEncoderV2;
 
 import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
-import "@0x/contracts-erc20/contracts/src/v06/IEtherTokenV06.sol";
-import "@0x/contracts-erc20/contracts/src/v06/LibERC20TokenV06.sol";
 import "@0x/contracts-utils/contracts/src/v06/errors/LibRichErrorsV06.sol";
 import "@0x/contracts-utils/contracts/src/v06/LibSafeMathV06.sol";
 import "../errors/LibLiquidityProviderRichErrors.sol";
+import "../external/ILiquidityProviderSandbox.sol";
+import "../external/LiquidityProviderSandbox.sol";
 import "../fixins/FixinCommon.sol";
 import "../migrations/LibMigrate.sol";
-import "../storage/LibLiquidityProviderStorage.sol";
-import "../vendor/v3/IERC20Bridge.sol";
 import "./IFeature.sol";
 import "./ILiquidityProviderFeature.sol";
-import "./ITokenSpenderFeature.sol";
+import "./libs/LibTokenSpender.sol";
 
 
 contract LiquidityProviderFeature is
@@ -39,7 +37,6 @@ contract LiquidityProviderFeature is
     ILiquidityProviderFeature,
     FixinCommon
 {
-    using LibERC20TokenV06 for IERC20TokenV06;
     using LibSafeMathV06 for uint256;
     using LibRichErrorsV06 for bytes;
 
@@ -50,16 +47,24 @@ contract LiquidityProviderFeature is
 
     /// @dev ETH pseudo-token address.
     address constant internal ETH_TOKEN_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
-    /// @dev The WETH contract address.
-    IEtherTokenV06 public immutable weth;
+    /// @dev The sandbox contract address.
+    ILiquidityProviderSandbox public immutable sandbox;
 
-    /// @dev Store the WETH address in an immutable.
-    /// @param weth_ The weth token.
-    constructor(IEtherTokenV06 weth_)
+    /// @dev Event for data pipeline.
+    event LiquidityProviderSwap(
+        address inputToken,
+        address outputToken,
+        uint256 inputTokenAmount,
+        uint256 outputTokenAmount,
+        address provider,
+        address recipient
+    );
+
+    constructor(address zeroEx)
         public
         FixinCommon()
     {
-        weth = weth_;
+        sandbox = new LiquidityProviderSandbox(zeroEx);
     }
 
     /// @dev Initialize and register this feature.
@@ -70,131 +75,102 @@ contract LiquidityProviderFeature is
         returns (bytes4 success)
     {
         _registerFeatureFunction(this.sellToLiquidityProvider.selector);
-        _registerFeatureFunction(this.setLiquidityProviderForMarket.selector);
-        _registerFeatureFunction(this.getLiquidityProviderForMarket.selector);
         return LibMigrate.MIGRATE_SUCCESS;
     }
 
+    /// @dev Sells `sellAmount` of `inputToken` to the liquidity provider
+    ///      at the given `provider` address.
+    /// @param inputToken The token being sold.
+    /// @param outputToken The token being bought.
+    /// @param provider The address of the on-chain liquidity provider
+    ///        to trade with.
+    /// @param recipient The recipient of the bought tokens. If equal to
+    ///        address(0), `msg.sender` is assumed to be the recipient.
+    /// @param sellAmount The amount of `inputToken` to sell.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to
+    ///        buy. Reverts if this amount is not satisfied.
+    /// @param auxiliaryData Auxiliary data supplied to the `provider` contract.
+    /// @return boughtAmount The amount of `outputToken` bought.
     function sellToLiquidityProvider(
-        address makerToken,
-        address takerToken,
-        address payable recipient,
+        address inputToken,
+        address outputToken,
+        address payable provider,
+        address recipient,
         uint256 sellAmount,
-        uint256 minBuyAmount
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
     )
         external
         override
         payable
         returns (uint256 boughtAmount)
     {
-        address providerAddress = getLiquidityProviderForMarket(makerToken, takerToken);
         if (recipient == address(0)) {
             recipient = msg.sender;
         }
 
-        if (takerToken == ETH_TOKEN_ADDRESS) {
-            // Wrap ETH.
-            weth.deposit{value: sellAmount}();
-            weth.transfer(providerAddress, sellAmount);
+        if (inputToken == ETH_TOKEN_ADDRESS) {
+            provider.transfer(sellAmount);
         } else {
-            ITokenSpenderFeature(address(this))._spendERC20Tokens(
-                IERC20TokenV06(takerToken),
+            LibTokenSpender.spendERC20Tokens(
+                IERC20TokenV06(inputToken),
                 msg.sender,
-                providerAddress,
+                provider,
                 sellAmount
             );
         }
 
-        if (makerToken == ETH_TOKEN_ADDRESS) {
-            uint256 balanceBefore = weth.balanceOf(address(this));
-            IERC20Bridge(providerAddress).bridgeTransferFrom(
-                address(weth),
-                address(0),
-                address(this),
-                minBuyAmount,
-                ""
-            );
-            boughtAmount = weth.balanceOf(address(this)).safeSub(balanceBefore);
-            // Unwrap wETH and send ETH to recipient.
-            weth.withdraw(boughtAmount);
-            recipient.transfer(boughtAmount);
-        } else {
-            uint256 balanceBefore = IERC20TokenV06(makerToken).balanceOf(recipient);
-            IERC20Bridge(providerAddress).bridgeTransferFrom(
-                makerToken,
-                address(0),
+        if (inputToken == ETH_TOKEN_ADDRESS) {
+            uint256 balanceBefore = IERC20TokenV06(outputToken).balanceOf(recipient);
+            sandbox.executeSellEthForToken(
+                provider,
+                outputToken,
                 recipient,
                 minBuyAmount,
-                ""
+                auxiliaryData
             );
-            boughtAmount = IERC20TokenV06(makerToken).balanceOf(recipient).safeSub(balanceBefore);
+            boughtAmount = IERC20TokenV06(outputToken).balanceOf(recipient).safeSub(balanceBefore);
+        } else if (outputToken == ETH_TOKEN_ADDRESS) {
+            uint256 balanceBefore = recipient.balance;
+            sandbox.executeSellTokenForEth(
+                provider,
+                inputToken,
+                recipient,
+                minBuyAmount,
+                auxiliaryData
+            );
+            boughtAmount = recipient.balance.safeSub(balanceBefore);
+        } else {
+            uint256 balanceBefore = IERC20TokenV06(outputToken).balanceOf(recipient);
+            sandbox.executeSellTokenForToken(
+                provider,
+                inputToken,
+                outputToken,
+                recipient,
+                minBuyAmount,
+                auxiliaryData
+            );
+            boughtAmount = IERC20TokenV06(outputToken).balanceOf(recipient).safeSub(balanceBefore);
         }
+
         if (boughtAmount < minBuyAmount) {
             LibLiquidityProviderRichErrors.LiquidityProviderIncompleteSellError(
-                providerAddress,
-                makerToken,
-                takerToken,
+                provider,
+                outputToken,
+                inputToken,
                 sellAmount,
                 boughtAmount,
                 minBuyAmount
             ).rrevert();
         }
-    }
 
-    /// @dev Sets address of the liquidity provider for a market given
-    ///      (xAsset, yAsset).
-    /// @param xAsset First asset managed by the liquidity provider.
-    /// @param yAsset Second asset managed by the liquidity provider.
-    /// @param providerAddress Address of the liquidity provider.
-    function setLiquidityProviderForMarket(
-        address xAsset,
-        address yAsset,
-        address providerAddress
-    )
-        external
-        override
-        onlyOwner
-    {
-        LibLiquidityProviderStorage.getStorage()
-            .addressBook[xAsset][yAsset] = providerAddress;
-        LibLiquidityProviderStorage.getStorage()
-            .addressBook[yAsset][xAsset] = providerAddress;
-        emit LiquidityProviderForMarketUpdated(
-            xAsset,
-            yAsset,
-            providerAddress
+        emit LiquidityProviderSwap(
+            inputToken,
+            outputToken,
+            sellAmount,
+            boughtAmount,
+            provider,
+            recipient
         );
     }
-
-    /// @dev Returns the address of the liquidity provider for a market given
-    ///     (xAsset, yAsset), or reverts if pool does not exist.
-    /// @param xAsset First asset managed by the liquidity provider.
-    /// @param yAsset Second asset managed by the liquidity provider.
-    /// @return providerAddress Address of the liquidity provider.
-    function getLiquidityProviderForMarket(
-        address xAsset,
-        address yAsset
-    )
-        public
-        view
-        override
-        returns (address providerAddress)
-    {
-        if (xAsset == ETH_TOKEN_ADDRESS) {
-            providerAddress = LibLiquidityProviderStorage.getStorage()
-                .addressBook[address(weth)][yAsset];
-        } else if (yAsset == ETH_TOKEN_ADDRESS) {
-            providerAddress = LibLiquidityProviderStorage.getStorage()
-                .addressBook[xAsset][address(weth)];
-        } else {
-            providerAddress = LibLiquidityProviderStorage.getStorage()
-                .addressBook[xAsset][yAsset];
-        }
-        if (providerAddress == address(0)) {
-            LibLiquidityProviderRichErrors.NoLiquidityProviderForMarketError(
-                xAsset,
-                yAsset
-            ).rrevert();
-        }
-    }
 }

contracts/zero-ex/contracts/src/features/MetaTransactionsFeature.sol

@@ -32,8 +32,8 @@ import "./libs/LibSignedCallData.sol";
 import "./IMetaTransactionsFeature.sol";
 import "./ITransformERC20Feature.sol";
 import "./ISignatureValidatorFeature.sol";
-import "./ITokenSpenderFeature.sol";
 import "./IFeature.sol";
+import "./libs/LibTokenSpender.sol";
 
 
 /// @dev MetaTransactions feature.
@@ -279,10 +279,10 @@ contract MetaTransactionsFeature is
 
         // Pay the fee to the sender.
         if (mtx.feeAmount > 0) {
-            ITokenSpenderFeature(address(this))._spendERC20Tokens(
+            LibTokenSpender.spendERC20Tokens(
                 mtx.feeToken,
-                mtx.signer, // From the signer.
-                sender, // To the sender.
+                mtx.signer,
+                sender,
                 mtx.feeAmount
             );
         }

contracts/zero-ex/contracts/src/features/SimpleFunctionRegistryFeature.sol

@@ -56,6 +56,7 @@ contract SimpleFunctionRegistryFeature is
         // Register getters.
         _extend(this.getRollbackLength.selector, _implementation);
         _extend(this.getRollbackEntryAtIndex.selector, _implementation);
+        _extend(this.getFunctionImplementation.selector, _implementation);
         return LibBootstrap.BOOTSTRAP_SUCCESS;
     }
 
@@ -151,6 +152,18 @@ contract SimpleFunctionRegistryFeature is
         return LibSimpleFunctionRegistryStorage.getStorage().implHistory[selector][idx];
     }
 
+    /// @dev Get the implementation contract of a registered function.
+    /// @param selector The function selector.
+    /// @return impl The implementation contract address.
+    function getFunctionImplementation(bytes4 selector)
+        external
+        override
+        view
+        returns (address impl)
+    {
+        return LibProxyStorage.getStorage().impls[selector];
+    }
+
     /// @dev Register or replace a function.
     /// @param selector The function selector.
     /// @param impl The implementation contract for the function.

contracts/zero-ex/contracts/src/features/TransformERC20Feature.sol

@@ -33,9 +33,9 @@ import "../transformers/IERC20Transformer.sol";
 import "../transformers/LibERC20Transformer.sol";
 import "./libs/LibSignedCallData.sol";
 import "./ITransformERC20Feature.sol";
-import "./ITokenSpenderFeature.sol";
 import "./IFeature.sol";
 import "./ISignatureValidatorFeature.sol";
+import "./libs/LibTokenSpender.sol";
 
 
 /// @dev Feature to composably transform between ERC20 tokens.
@@ -58,7 +58,7 @@ contract TransformERC20Feature is
     /// @dev Name of this feature.
     string public constant override FEATURE_NAME = "TransformERC20";
     /// @dev Version of this feature.
-    uint256 public immutable override FEATURE_VERSION = _encodeVersion(1, 2, 0);
+    uint256 public immutable override FEATURE_VERSION = _encodeVersion(1, 3, 0);
 
     /// @dev Initialize and register this feature.
     ///      Should be delegatecalled by `Migrate.migrate()`.
@@ -211,8 +211,10 @@ contract TransformERC20Feature is
         // If the input token amount is -1, transform the taker's entire
         // spendable balance.
         if (args.inputTokenAmount == uint256(-1)) {
-            args.inputTokenAmount = ITokenSpenderFeature(address(this))
-                .getSpendableERC20BalanceOf(args.inputToken, args.taker);
+            args.inputTokenAmount = LibTokenSpender.getSpendableERC20BalanceOf(
+                args.inputToken,
+                args.taker
+            );
         }
 
         TransformERC20PrivateState memory state;
@@ -315,12 +317,7 @@ contract TransformERC20Feature is
         // Transfer input tokens.
         if (!LibERC20Transformer.isTokenETH(inputToken)) {
             // Token is not ETH, so pull ERC20 tokens.
-            ITokenSpenderFeature(address(this))._spendERC20Tokens(
-                inputToken,
-                from,
-                to,
-                amount
-            );
+            LibTokenSpender.spendERC20Tokens(inputToken, from, to, amount);
         } else if (msg.value < amount) {
              // Token is ETH, so the caller must attach enough ETH to the call.
             LibTransformERC20RichErrors.InsufficientEthAttachedError(

contracts/zero-ex/contracts/src/features/UniswapFeature.sol

@@ -37,7 +37,7 @@ contract UniswapFeature is
     /// @dev Name of this feature.
     string public constant override FEATURE_NAME = "UniswapFeature";
     /// @dev Version of this feature.
-    uint256 public immutable override FEATURE_VERSION = _encodeVersion(1, 0, 0);
+    uint256 public immutable override FEATURE_VERSION = _encodeVersion(1, 1, 0);
     /// @dev WETH contract.
     IEtherTokenV06 private immutable WETH;
     /// @dev AllowanceTarget instance.
@@ -157,17 +157,49 @@ contract UniswapFeature is
                     switch eq(sellToken, ETH_TOKEN_ADDRESS_32)
                         case 0 {
                             // For the first pair we need to transfer sellTokens into the
-                            // pair contract using `AllowanceTarget.executeCall()`
-                            mstore(0xB00, ALLOWANCE_TARGET_EXECUTE_CALL_SELECTOR_32)
-                            mstore(0xB04, sellToken)
-                            mstore(0xB24, 0x40)
-                            mstore(0xB44, 0x64)
-                            mstore(0xB64, TRANSFER_FROM_CALL_SELECTOR_32)
-                            mstore(0xB68, caller())
-                            mstore(0xB88, pair)
-                            mstore(0xBA8, sellAmount)
-                            if iszero(call(gas(), mload(0xA60), 0, 0xB00, 0xC8, 0x00, 0x0)) {
-                                bubbleRevert()
+                            // pair contract.
+                            mstore(0xB00, TRANSFER_FROM_CALL_SELECTOR_32)
+                            mstore(0xB04, caller())
+                            mstore(0xB24, pair)
+                            mstore(0xB44, sellAmount)
+
+                            // Copy only the first 32 bytes of return data. We
+                            // only care about reading a boolean in the success
+                            // case, and we discard the return data in the
+                            // failure case.
+                            let success := call(gas(), sellToken, 0, 0xB00, 0x64, 0xC00, 0x20)
+
+                            let rdsize := returndatasize()
+
+                            // Check for ERC20 success. ERC20 tokens should
+                            // return a boolean, but some return nothing or
+                            // extra data. We accept 0-length return data as
+                            // success, or at least 32 bytes that starts with
+                            // a 32-byte boolean true.
+                            success := and(
+                                success,                         // call itself succeeded
+                                or(
+                                    iszero(rdsize),              // no return data, or
+                                    and(
+                                        iszero(lt(rdsize, 32)),  // at least 32 bytes
+                                        eq(mload(0xC00), 1)      // starts with uint256(1)
+                                    )
+                                )
+                            )
+
+                            if iszero(success) {
+                                // Try to fall back to the allowance target.
+                                mstore(0xB00, ALLOWANCE_TARGET_EXECUTE_CALL_SELECTOR_32)
+                                mstore(0xB04, sellToken)
+                                mstore(0xB24, 0x40)
+                                mstore(0xB44, 0x64)
+                                mstore(0xB64, TRANSFER_FROM_CALL_SELECTOR_32)
+                                mstore(0xB68, caller())
+                                mstore(0xB88, pair)
+                                mstore(0xBA8, sellAmount)
+                                if iszero(call(gas(), mload(0xA60), 0, 0xB00, 0xC8, 0x00, 0x0)) {
+                                    bubbleRevert()
+                                }
                             }
                         }
                         default {

contracts/zero-ex/contracts/src/features/libs/LibSignature.sol

@@ -0,0 +1,151 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-utils/contracts/src/v06/errors/LibRichErrorsV06.sol";
+import "../../errors/LibSignatureRichErrors.sol";
+
+
+/// @dev A library for validating signatures.
+library LibSignature {
+    using LibRichErrorsV06 for bytes;
+
+    // '\x19Ethereum Signed Message:\n32\x00\x00\x00\x00' in a word.
+    uint256 private constant ETH_SIGN_HASH_PREFIX =
+        0x19457468657265756d205369676e6564204d6573736167653a0a333200000000;
+    /// @dev Exclusive upper limit on ECDSA signatures 'R' values.
+    ///      The valid range is given by fig (282) of the yellow paper.
+    uint256 private constant ECDSA_SIGNATURE_R_LIMIT =
+        uint256(0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141);
+    /// @dev Exclusive upper limit on ECDSA signatures 'S' values.
+    ///      The valid range is given by fig (283) of the yellow paper.
+    uint256 private constant ECDSA_SIGNATURE_S_LIMIT = ECDSA_SIGNATURE_R_LIMIT / 2 + 1;
+
+   /// @dev Allowed signature types.
+    enum SignatureType {
+        ILLEGAL,
+        INVALID,
+        EIP712,
+        ETHSIGN
+    }
+
+    /// @dev Encoded EC signature.
+    struct Signature {
+        // How to validate the signature.
+        SignatureType signatureType;
+        // EC Signature data.
+        uint8 v;
+        // EC Signature data.
+        bytes32 r;
+        // EC Signature data.
+        bytes32 s;
+    }
+
+    /// @dev Retrieve the signer of a signature.
+    ///      Throws if the signature can't be validated.
+    /// @param hash The hash that was signed.
+    /// @param signature The signature.
+    /// @return recovered The recovered signer address.
+    function getSignerOfHash(
+        bytes32 hash,
+        Signature memory signature
+    )
+        internal
+        pure
+        returns (address recovered)
+    {
+        // Ensure this is a signature type that can be validated against a hash.
+        _validateHashCompatibleSignature(hash, signature);
+
+        if (signature.signatureType == SignatureType.EIP712) {
+            // Signed using EIP712
+            recovered = ecrecover(
+                hash,
+                signature.v,
+                signature.r,
+                signature.s
+            );
+        } else if (signature.signatureType == SignatureType.ETHSIGN) {
+            // Signed using `eth_sign`
+            // Need to hash `hash` with "\x19Ethereum Signed Message:\n32" prefix
+            // in packed encoding.
+            bytes32 ethSignHash;
+            assembly {
+                // Use scratch space
+                mstore(0, ETH_SIGN_HASH_PREFIX) // length of 28 bytes
+                mstore(28, hash) // length of 32 bytes
+                ethSignHash := keccak256(0, 60)
+            }
+            recovered = ecrecover(
+                ethSignHash,
+                signature.v,
+                signature.r,
+                signature.s
+            );
+        }
+        // `recovered` can be null if the signature values are out of range.
+        if (recovered == address(0)) {
+            LibSignatureRichErrors.SignatureValidationError(
+                LibSignatureRichErrors.SignatureValidationErrorCodes.BAD_SIGNATURE_DATA,
+                hash
+            ).rrevert();
+        }
+    }
+
+    /// @dev Validates that a signature is compatible with a hash signee.
+    /// @param hash The hash that was signed.
+    /// @param signature The signature.
+    function _validateHashCompatibleSignature(
+        bytes32 hash,
+        Signature memory signature
+    )
+        private
+        pure
+    {
+        // Ensure the r and s are within malleability limits.
+        if (uint256(signature.r) >= ECDSA_SIGNATURE_R_LIMIT ||
+            uint256(signature.s) >= ECDSA_SIGNATURE_S_LIMIT)
+        {
+            LibSignatureRichErrors.SignatureValidationError(
+                LibSignatureRichErrors.SignatureValidationErrorCodes.BAD_SIGNATURE_DATA,
+                hash
+            ).rrevert();
+        }
+
+        // Always illegal signature.
+        if (signature.signatureType == SignatureType.ILLEGAL) {
+            LibSignatureRichErrors.SignatureValidationError(
+                LibSignatureRichErrors.SignatureValidationErrorCodes.ILLEGAL,
+                hash
+            ).rrevert();
+        }
+
+        // Always invalid.
+        if (signature.signatureType == SignatureType.INVALID) {
+            LibSignatureRichErrors.SignatureValidationError(
+                LibSignatureRichErrors.SignatureValidationErrorCodes.ALWAYS_INVALID,
+                hash
+            ).rrevert();
+        }
+
+        // Solidity should check that the signature type is within enum range for us
+        // when abi-decoding.
+    }
+}

contracts/zero-ex/contracts/src/features/libs/LibTokenSpender.sol

@@ -0,0 +1,131 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
+import "@0x/contracts-utils/contracts/src/v06/LibSafeMathV06.sol";
+import "../../errors/LibSpenderRichErrors.sol";
+import "../ITokenSpenderFeature.sol";
+
+library LibTokenSpender {
+    using LibRichErrorsV06 for bytes;
+
+    // Mask of the lower 20 bytes of a bytes32.
+    uint256 constant private ADDRESS_MASK = 0x000000000000000000000000ffffffffffffffffffffffffffffffffffffffff;
+
+    /// @dev Transfers ERC20 tokens from `owner` to `to`.
+    /// @param token The token to spend.
+    /// @param owner The owner of the tokens.
+    /// @param to The recipient of the tokens.
+    /// @param amount The amount of `token` to transfer.
+    function spendERC20Tokens(
+        IERC20TokenV06 token,
+        address owner,
+        address to,
+        uint256 amount
+    )
+        internal
+    {
+        bool success;
+        bytes memory revertData;
+
+        require(address(token) != address(this), "LibTokenSpender/CANNOT_INVOKE_SELF");
+
+        assembly {
+            let ptr := mload(0x40) // free memory pointer
+
+            // selector for transferFrom(address,address,uint256)
+            mstore(ptr, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
+            mstore(add(ptr, 0x04), and(owner, ADDRESS_MASK))
+            mstore(add(ptr, 0x24), and(to, ADDRESS_MASK))
+            mstore(add(ptr, 0x44), amount)
+
+            success := call(gas(), and(token, ADDRESS_MASK), 0, ptr, 0x64, 0, 0)
+
+            let rdsize := returndatasize()
+
+            returndatacopy(add(ptr, 0x20), 0, rdsize) // reuse memory
+
+            // Check for ERC20 success. ERC20 tokens should return a boolean,
+            // but some don't. We accept 0-length return data as success, or at
+            // least 32 bytes that starts with a 32-byte boolean true.
+            success := and(
+                success,                             // call itself succeeded
+                or(
+                    iszero(rdsize),                  // no return data, or
+                    and(
+                        iszero(lt(rdsize, 32)),      // at least 32 bytes
+                        eq(mload(add(ptr, 0x20)), 1) // starts with uint256(1)
+                    )
+                )
+            )
+
+            if iszero(success) {
+                // revertData is a bytes, so length-prefixed data
+                mstore(ptr, rdsize)
+                revertData := ptr
+
+                // update free memory pointer (ptr + 32-byte length + return data)
+                mstore(0x40, add(add(ptr, 0x20), rdsize))
+            }
+        }
+
+        if (!success) {
+            // Try the old AllowanceTarget.
+            try ITokenSpenderFeature(address(this))._spendERC20Tokens(
+                    token,
+                    owner,
+                    to,
+                    amount
+                ) {
+            } catch {
+                // Bubble up the first error message. (In general, the fallback to the
+                // allowance target is opportunistic. We ignore the specific error
+                // message if it fails.)
+                LibSpenderRichErrors.SpenderERC20TransferFromFailedError(
+                    address(token),
+                    owner,
+                    to,
+                    amount,
+                    revertData
+                ).rrevert();
+            }
+        }
+    }
+
+    /// @dev Gets the maximum amount of an ERC20 token `token` that can be
+    ///      pulled from `owner` by this address.
+    /// @param token The token to spend.
+    /// @param owner The owner of the tokens.
+    /// @return amount The amount of tokens that can be pulled.
+    function getSpendableERC20BalanceOf(
+        IERC20TokenV06 token,
+        address owner
+    )
+        internal
+        view
+        returns (uint256)
+    {
+        return LibSafeMathV06.min256(
+            token.allowance(owner, address(this)),
+            token.balanceOf(owner)
+        );
+    }
+}

contracts/zero-ex/contracts/src/fixins/FixinProtocolFees.sol

@@ -0,0 +1,114 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/IEtherTokenV06.sol";
+import "../external/FeeCollector.sol";
+import "../features/libs/LibTokenSpender.sol";
+
+/// @dev Helpers for collecting protocol fees.
+abstract contract FixinProtocolFees {
+    bytes32 immutable feeCollectorCodeHash;
+
+    constructor() internal {
+        feeCollectorCodeHash = keccak256(type(FeeCollector).creationCode);
+    }
+
+    /// @dev   Collect the specified protocol fee in either WETH or ETH. If
+    ///        msg.value is non-zero, the fee will be paid in ETH. Otherwise,
+    ///        this function attempts to transfer the fee in WETH. Either way,
+    ///        The fee is stored in a per-pool fee collector contract.
+    /// @param poolId The pool ID for which a fee is being collected.
+    /// @param amount The amount of ETH/WETH to be collected.
+    /// @param weth The WETH token contract.
+    function _collectProtocolFee(
+        bytes32 poolId,
+        uint256 amount,
+        IERC20TokenV06 weth
+    )
+        internal
+    {
+        FeeCollector feeCollector = _getFeeCollector(poolId);
+
+        if (msg.value == 0) {
+            // WETH
+            LibTokenSpender.spendERC20Tokens(weth, msg.sender, address(feeCollector), amount);
+        } else {
+            // ETH
+            (bool success,) = address(feeCollector).call{value: amount}("");
+            require(success, "FixinProtocolFees/ETHER_TRANSFER_FALIED");
+        }
+    }
+
+    /// @dev Transfer fees for a given pool to the staking contract.
+    /// @param poolId Identifies the pool whose fees are being paid.
+    function _transferFeesForPool(
+        bytes32 poolId,
+        IStaking staking,
+        IEtherTokenV06 weth
+    )
+        internal
+    {
+        FeeCollector feeCollector = _getFeeCollector(poolId);
+
+        uint256 codeSize;
+        assembly {
+            codeSize := extcodesize(feeCollector)
+        }
+
+        if (codeSize == 0) {
+            // Create and initialize the contract if necessary.
+            new FeeCollector{salt: poolId}();
+            feeCollector.initialize(weth, staking, poolId);
+        }
+
+        if (address(feeCollector).balance > 1) {
+            feeCollector.convertToWeth(weth);
+        }
+
+        uint256 bal = weth.balanceOf(address(feeCollector));
+        if (bal > 1) {
+            // Leave 1 wei behind to avoid high SSTORE cost of zero-->non-zero.
+            staking.payProtocolFee(
+                address(feeCollector),
+                address(feeCollector),
+                bal - 1);
+        }
+    }
+
+    /// @dev Compute the CREATE2 address for a fee collector.
+    /// @param poolId The fee collector's pool ID.
+    function _getFeeCollector(
+        bytes32 poolId
+    )
+        internal
+        view
+        returns (FeeCollector)
+    {
+        // Compute the CREATE2 address for the fee collector.
+        address payable addr = address(uint256(keccak256(abi.encodePacked(
+            byte(0xff),
+            address(this),
+            poolId, // pool ID is salt
+            feeCollectorCodeHash
+        ))));
+        return FeeCollector(addr);
+    }
+}

contracts/zero-ex/contracts/src/storage/LibLiquidityProviderStorage.sol

@@ -1,45 +0,0 @@
-/*
-
-  Copyright 2020 ZeroEx Intl.
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-*/
-
-pragma solidity ^0.6.5;
-pragma experimental ABIEncoderV2;
-
-import "./LibStorage.sol";
-
-
-/// @dev Storage helpers for `LiquidityProviderFeature`.
-library LibLiquidityProviderStorage {
-
-    /// @dev Storage bucket for this feature.
-    struct Storage {
-        // Mapping of taker token -> maker token -> liquidity provider address
-        // Note that addressBook[x][y] == addressBook[y][x] will always hold.
-        mapping (address => mapping (address => address)) addressBook;
-    }
-
-    /// @dev Get the storage bucket for this contract.
-    function getStorage() internal pure returns (Storage storage stor) {
-        uint256 storageSlot = LibStorage.getStorageSlot(
-            LibStorage.StorageId.LiquidityProvider
-        );
-        // Dip into assembly to change the slot pointed to by the local
-        // variable `stor`.
-        // See https://solidity.readthedocs.io/en/v0.6.8/assembly.html?highlight=slot#access-to-external-variables-functions-and-libraries
-        assembly { stor_slot := storageSlot }
-    }
-}

contracts/zero-ex/contracts/src/storage/LibStorage.sol

@@ -36,8 +36,7 @@ library LibStorage {
         TokenSpender,
         TransformERC20,
         MetaTransactions,
-        ReentrancyGuard,
-        LiquidityProvider
+        ReentrancyGuard
     }
 
     /// @dev Get the storage slot given a storage ID. We assign unique, well-spaced

contracts/zero-ex/contracts/src/transformers/FillQuoteTransformer.sol

@@ -27,6 +27,7 @@ import "@0x/contracts-utils/contracts/src/v06/LibSafeMathV06.sol";
 import "@0x/contracts-utils/contracts/src/v06/LibMathV06.sol";
 import "../errors/LibTransformERC20RichErrors.sol";
 import "../vendor/v3/IExchange.sol";
+import "../vendor/v3/LibOrderHash.sol";
 import "./bridges/IBridgeAdapter.sol";
 import "./Transformer.sol";
 import "./LibERC20Transformer.sol";
@@ -104,13 +105,8 @@ contract FillQuoteTransformer is
 
     /// @dev Emitted when a trade is skipped due to a lack of funds
     ///      to pay the 0x Protocol fee.
-    /// @param ethBalance The current eth balance.
-    /// @param ethNeeded The current eth balance required to pay
-    ///        the protocol fee.
-    event ProtocolFeeUnfunded(
-        uint256 ethBalance,
-        uint256 ethNeeded
-    );
+    /// @param orderHash The hash of the order that was skipped.
+    event ProtocolFeeUnfunded(bytes32 orderHash);
 
     /// @dev The Exchange ERC20Proxy ID.
     bytes4 private constant ERC20_ASSET_PROXY_ID = 0xf47261b0;
@@ -450,7 +446,11 @@ contract FillQuoteTransformer is
             }
             // Emit an event if we do not have sufficient ETH to cover the protocol fee.
             if (state.ethRemaining < state.protocolFee) {
-                emit ProtocolFeeUnfunded(state.ethRemaining, state.protocolFee);
+                bytes32 orderHash = LibOrderHash.getTypedDataHash(
+                    order,
+                    exchange.EIP712_EXCHANGE_DOMAIN_HASH()
+                );
+                emit ProtocolFeeUnfunded(orderHash);
                 return results;
             }
             try

contracts/zero-ex/contracts/src/transformers/bridges/BridgeAdapter.sol

@@ -22,11 +22,13 @@ pragma experimental ABIEncoderV2;
 import "./mixins/MixinAdapterAddresses.sol";
 import "./mixins/MixinBalancer.sol";
 import "./mixins/MixinCurve.sol";
+import "./mixins/MixinDodo.sol";
 import "./mixins/MixinKyber.sol";
 import "./mixins/MixinMooniswap.sol";
 import "./mixins/MixinMStable.sol";
 import "./mixins/MixinOasis.sol";
 import "./mixins/MixinShell.sol";
+import "./mixins/MixinSushiswap.sol";
 import "./mixins/MixinUniswap.sol";
 import "./mixins/MixinUniswapV2.sol";
 import "./mixins/MixinZeroExBridge.sol";
@@ -35,11 +37,13 @@ contract BridgeAdapter is
     MixinAdapterAddresses,
     MixinBalancer,
     MixinCurve,
+    MixinDodo,
     MixinKyber,
     MixinMooniswap,
     MixinMStable,
     MixinOasis,
     MixinShell,
+    MixinSushiswap,
     MixinUniswap,
     MixinUniswapV2,
     MixinZeroExBridge
@@ -48,39 +52,29 @@ contract BridgeAdapter is
     address private immutable BALANCER_BRIDGE_ADDRESS;
     address private immutable CREAM_BRIDGE_ADDRESS;
     address private immutable CURVE_BRIDGE_ADDRESS;
+    address private immutable DODO_BRIDGE_ADDRESS;
     address private immutable KYBER_BRIDGE_ADDRESS;
     address private immutable MOONISWAP_BRIDGE_ADDRESS;
     address private immutable MSTABLE_BRIDGE_ADDRESS;
     address private immutable OASIS_BRIDGE_ADDRESS;
     address private immutable SHELL_BRIDGE_ADDRESS;
+    address private immutable SNOW_SWAP_BRIDGE_ADDRESS;
+    address private immutable SUSHISWAP_BRIDGE_ADDRESS;
+    address private immutable SWERVE_BRIDGE_ADDRESS;
     address private immutable UNISWAP_BRIDGE_ADDRESS;
     address private immutable UNISWAP_V2_BRIDGE_ADDRESS;
 
-    /// @dev Emitted when a trade occurs.
-    /// @param inputToken The token the bridge is converting from.
-    /// @param outputToken The token the bridge is converting to.
-    /// @param inputTokenAmount Amount of input token.
-    /// @param outputTokenAmount Amount of output token.
-    /// @param from The bridge address, indicating the underlying source of the fill.
-    /// @param to The `to` address, currrently `address(this)`
-    event ERC20BridgeTransfer(
-        IERC20TokenV06 inputToken,
-        IERC20TokenV06 outputToken,
-        uint256 inputTokenAmount,
-        uint256 outputTokenAmount,
-        address from,
-        address to
-    );
-
     constructor(AdapterAddresses memory addresses)
         public
         MixinBalancer()
         MixinCurve()
+        MixinDodo(addresses)
         MixinKyber(addresses)
         MixinMooniswap(addresses)
         MixinMStable(addresses)
         MixinOasis(addresses)
-        MixinShell(addresses)
+        MixinShell()
+        MixinSushiswap(addresses)
         MixinUniswap(addresses)
         MixinUniswapV2(addresses)
         MixinZeroExBridge()
@@ -92,9 +86,13 @@ contract BridgeAdapter is
         MSTABLE_BRIDGE_ADDRESS = addresses.mStableBridge;
         OASIS_BRIDGE_ADDRESS = addresses.oasisBridge;
         SHELL_BRIDGE_ADDRESS = addresses.shellBridge;
+        SUSHISWAP_BRIDGE_ADDRESS = addresses.sushiswapBridge;
+        SWERVE_BRIDGE_ADDRESS = addresses.swerveBridge;
         UNISWAP_BRIDGE_ADDRESS = addresses.uniswapBridge;
         UNISWAP_V2_BRIDGE_ADDRESS = addresses.uniswapV2Bridge;
         CREAM_BRIDGE_ADDRESS = addresses.creamBridge;
+        SNOW_SWAP_BRIDGE_ADDRESS = addresses.snowSwapBridge;
+        DODO_BRIDGE_ADDRESS = addresses.dodoBridge;
     }
 
     function trade(
@@ -118,12 +116,20 @@ contract BridgeAdapter is
             "BridgeAdapter/INVALID_BRIDGE_ADDRESS"
         );
 
-        if (bridgeAddress == CURVE_BRIDGE_ADDRESS) {
+        if (bridgeAddress == CURVE_BRIDGE_ADDRESS ||
+            bridgeAddress == SWERVE_BRIDGE_ADDRESS ||
+            bridgeAddress == SNOW_SWAP_BRIDGE_ADDRESS) {
             boughtAmount = _tradeCurve(
                 buyToken,
                 sellAmount,
                 bridgeData
             );
+        } else if (bridgeAddress == SUSHISWAP_BRIDGE_ADDRESS) {
+            boughtAmount = _tradeSushiswap(
+                buyToken,
+                sellAmount,
+                bridgeData
+            );
         } else if (bridgeAddress == UNISWAP_V2_BRIDGE_ADDRESS) {
             boughtAmount = _tradeUniswapV2(
                 buyToken,
@@ -136,7 +142,8 @@ contract BridgeAdapter is
                 sellAmount,
                 bridgeData
             );
-        } else if (bridgeAddress == BALANCER_BRIDGE_ADDRESS  || bridgeAddress == CREAM_BRIDGE_ADDRESS) {
+        } else if (bridgeAddress == BALANCER_BRIDGE_ADDRESS ||
+                   bridgeAddress == CREAM_BRIDGE_ADDRESS) {
             boughtAmount = _tradeBalancer(
                 buyToken,
                 sellAmount,
@@ -172,6 +179,12 @@ contract BridgeAdapter is
                 sellAmount,
                 bridgeData
             );
+        } else if (bridgeAddress == DODO_BRIDGE_ADDRESS) {
+            boughtAmount = _tradeDodo(
+                buyToken,
+                sellAmount,
+                bridgeData
+            );
         } else {
             boughtAmount = _tradeZeroExBridge(
                 bridgeAddress,
@@ -180,7 +193,8 @@ contract BridgeAdapter is
                 sellAmount,
                 bridgeData
             );
-            // Do not emit an event. The bridge contract should emit one itself.
+            // Old bridge contracts should emit an `ERC20BridgeTransfer` themselves,
+            // otherwise an event will be emitted from `_tradeZeroExBridge`.
             return boughtAmount;
         }
 

contracts/zero-ex/contracts/src/transformers/bridges/mixins/MixinAdapterAddresses.sol

@@ -26,20 +26,25 @@ contract MixinAdapterAddresses
         address balancerBridge;
         address creamBridge;
         address curveBridge;
+        address dodoBridge;
         address kyberBridge;
         address mooniswapBridge;
         address mStableBridge;
         address oasisBridge;
         address shellBridge;
+        address snowSwapBridge;
+        address swerveBridge;
+        address sushiswapBridge;
         address uniswapBridge;
         address uniswapV2Bridge;
         // Exchanges
         address kyberNetworkProxy;
         address oasis;
+        address sushiswapRouter;
         address uniswapV2Router;
         address uniswapExchangeFactory;
         address mStable;
-        address shell;
+        address dodoHelper;
         // Other
         address weth;
     }

contracts/zero-ex/contracts/src/transformers/bridges/mixins/MixinDodo.sol

@@ -0,0 +1,97 @@
+
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/LibERC20TokenV06.sol";
+import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
+import "./MixinAdapterAddresses.sol";
+
+interface IDODOHelper {
+
+    function querySellQuoteToken(address dodo, uint256 amount) external view returns (uint256);
+}
+
+
+interface IDODO {
+
+    function sellBaseToken(uint256 amount, uint256 minReceiveQuote, bytes calldata data) external returns (uint256);
+
+    function buyBaseToken(uint256 amount, uint256 maxPayQuote, bytes calldata data) external returns (uint256);
+
+}
+
+
+contract MixinDodo is
+    MixinAdapterAddresses
+{
+    using LibERC20TokenV06 for IERC20TokenV06;
+
+    /// @dev Mainnet address of the `DOODO Helper` contract.
+    IDODOHelper private immutable DODO_HELPER;
+
+    constructor(AdapterAddresses memory addresses)
+        public
+    {
+        DODO_HELPER = IDODOHelper(addresses.dodoHelper);
+    }
+
+    function _tradeDodo(
+        IERC20TokenV06 /* buyToken */,
+        uint256 sellAmount,
+        bytes memory bridgeData
+    )
+        internal
+        returns (uint256 boughtAmount)
+    {
+        (address fromTokenAddress,
+         address pool,
+         bool isSellBase) = abi.decode(bridgeData, (address, address, bool));
+
+        // Grant the Dodo pool contract an allowance to sell the first token.
+        IERC20TokenV06(fromTokenAddress).approveIfBelow(pool, sellAmount);
+
+        if (isSellBase) {
+            // Sell the Base token directly against the contract
+            boughtAmount = IDODO(pool).sellBaseToken(
+                // amount to sell
+                sellAmount,
+                // min receive amount
+                1,
+                new bytes(0)
+            );
+        } else {
+            // Need to re-calculate the sell quote amount into buyBase
+            boughtAmount = DODO_HELPER.querySellQuoteToken(
+                pool,
+                sellAmount
+            );
+            IDODO(pool).buyBaseToken(
+                // amount to buy
+                boughtAmount,
+                // max pay amount
+                sellAmount,
+                new bytes(0)
+            );
+        }
+
+        return boughtAmount;
+    }
+}

contracts/zero-ex/contracts/src/transformers/bridges/mixins/MixinShell.sol

@@ -37,22 +37,11 @@ interface IShell {
         returns (uint256 toAmount);
 }
 
-
-
 contract MixinShell is
     MixinAdapterAddresses
 {
     using LibERC20TokenV06 for IERC20TokenV06;
 
-    /// @dev Mainnet address of the `Shell` contract.
-    IShell private immutable SHELL;
-
-    constructor(AdapterAddresses memory addresses)
-        public
-    {
-        SHELL = IShell(addresses.shell);
-    }
-
     function _tradeShell(
         IERC20TokenV06 buyToken,
         uint256 sellAmount,
@@ -61,15 +50,15 @@ contract MixinShell is
         internal
         returns (uint256 boughtAmount)
     {
-        (address fromTokenAddress) = abi.decode(bridgeData, (address));
+        (address fromTokenAddress, address pool) = abi.decode(bridgeData, (address, address));
 
         // Grant the Shell contract an allowance to sell the first token.
         IERC20TokenV06(fromTokenAddress).approveIfBelow(
-            address(SHELL),
+            pool,
             sellAmount
         );
 
-        uint256 buyAmount = SHELL.originSwap(
+        boughtAmount = IShell(pool).originSwap(
             fromTokenAddress,
             address(buyToken),
              // Sell all tokens we hold.
@@ -79,6 +68,6 @@ contract MixinShell is
             // deadline
             block.timestamp + 1
         );
-        return buyAmount;
+        return boughtAmount;
     }
 }

contracts/zero-ex/contracts/src/transformers/bridges/mixins/MixinSushiswap.sol

@@ -0,0 +1,79 @@
+
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/LibERC20TokenV06.sol";
+import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
+import "./MixinAdapterAddresses.sol";
+import "./MixinUniswapV2.sol";
+
+contract MixinSushiswap is
+    MixinAdapterAddresses
+{
+    using LibERC20TokenV06 for IERC20TokenV06;
+
+    /// @dev Mainnet address of the `SushiswapRouter` contract.
+    IUniswapV2Router02 private immutable SUSHISWAP_ROUTER;
+
+    constructor(AdapterAddresses memory addresses)
+        public
+    {
+        SUSHISWAP_ROUTER = IUniswapV2Router02(addresses.sushiswapRouter);
+    }
+
+    function _tradeSushiswap(
+        IERC20TokenV06 buyToken,
+        uint256 sellAmount,
+        bytes memory bridgeData
+    )
+        internal
+        returns (uint256 boughtAmount)
+    {
+        // solhint-disable indent
+        address[] memory path = abi.decode(bridgeData, (address[]));
+        // solhint-enable indent
+
+        require(path.length >= 2, "SushiswapBridge/PATH_LENGTH_MUST_BE_AT_LEAST_TWO");
+        require(
+            path[path.length - 1] == address(buyToken),
+            "SushiswapBridge/LAST_ELEMENT_OF_PATH_MUST_MATCH_OUTPUT_TOKEN"
+        );
+        // Grant the Uniswap router an allowance to sell the first token.
+        IERC20TokenV06(path[0]).approveIfBelow(
+            address(SUSHISWAP_ROUTER),
+            sellAmount
+        );
+
+        uint[] memory amounts = SUSHISWAP_ROUTER.swapExactTokensForTokens(
+             // Sell all tokens we hold.
+            sellAmount,
+             // Minimum buy amount.
+            1,
+            // Convert to `buyToken` along this path.
+            path,
+            // Recipient is `this`.
+            address(this),
+            // Expires after this block.
+            block.timestamp
+        );
+        return amounts[amounts.length-1];
+    }
+}

contracts/zero-ex/contracts/src/transformers/bridges/mixins/MixinZeroExBridge.sol

@@ -21,32 +21,31 @@ pragma solidity ^0.6.5;
 import "@0x/contracts-erc20/contracts/src/v06/LibERC20TokenV06.sol";
 import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
 import "@0x/contracts-utils/contracts/src/v06/LibSafeMathV06.sol";
+import "../../../vendor/ILiquidityProvider.sol";
+import "../../../vendor/v3/IERC20Bridge.sol";
 
-interface IERC20Bridge {
-
-    /// @dev Transfers `amount` of the ERC20 `buyToken` from `from` to `to`.
-    /// @param buyToken The address of the ERC20 token to transfer.
-    /// @param from Address to transfer asset from.
-    /// @param to Address to transfer asset to.
-    /// @param amount Amount of asset to transfer.
-    /// @param bridgeData Arbitrary asset data needed by the bridge contract.
-    /// @return success The magic bytes `0xdc1600f3` if successful.
-    function bridgeTransferFrom(
-        IERC20TokenV06 buyToken,
-        address from,
-        address to,
-        uint256 amount,
-        bytes calldata bridgeData
-    )
-        external
-        returns (bytes4 success);
-}
 
 contract MixinZeroExBridge {
 
     using LibERC20TokenV06 for IERC20TokenV06;
     using LibSafeMathV06 for uint256;
 
+    /// @dev Emitted when a trade occurs.
+    /// @param inputToken The token the bridge is converting from.
+    /// @param outputToken The token the bridge is converting to.
+    /// @param inputTokenAmount Amount of input token.
+    /// @param outputTokenAmount Amount of output token.
+    /// @param from The bridge address, indicating the underlying source of the fill.
+    /// @param to The `to` address, currrently `address(this)`
+    event ERC20BridgeTransfer(
+        IERC20TokenV06 inputToken,
+        IERC20TokenV06 outputToken,
+        uint256 inputTokenAmount,
+        uint256 outputTokenAmount,
+        address from,
+        address to
+    );
+
     function _tradeZeroExBridge(
         address bridgeAddress,
         IERC20TokenV06 sellToken,
@@ -57,19 +56,37 @@ contract MixinZeroExBridge {
         internal
         returns (uint256 boughtAmount)
     {
-        uint256 balanceBefore = buyToken.balanceOf(address(this));
         // Trade the good old fashioned way
         sellToken.compatTransfer(
             bridgeAddress,
             sellAmount
         );
-        IERC20Bridge(bridgeAddress).bridgeTransferFrom(
-            buyToken,
-            address(bridgeAddress),
-            address(this),
-            1, // amount to transfer back from the bridge
-            bridgeData
-        );
-        boughtAmount = buyToken.balanceOf(address(this)).safeSub(balanceBefore);
+        try ILiquidityProvider(bridgeAddress).sellTokenForToken(
+                address(sellToken),
+                address(buyToken),
+                address(this), // recipient
+                1, // minBuyAmount
+                bridgeData
+        ) returns (uint256 _boughtAmount) {
+            boughtAmount = _boughtAmount;
+            emit ERC20BridgeTransfer(
+                sellToken,
+                buyToken,
+                sellAmount,
+                boughtAmount,
+                bridgeAddress,
+                address(this)
+            );
+        } catch {
+            uint256 balanceBefore = buyToken.balanceOf(address(this));
+            IERC20Bridge(bridgeAddress).bridgeTransferFrom(
+                address(buyToken),
+                bridgeAddress,
+                address(this), // recipient
+                1, // minBuyAmount
+                bridgeData
+            );
+            boughtAmount = buyToken.balanceOf(address(this)).safeSub(balanceBefore);
+        }
     }
 }

contracts/zero-ex/contracts/src/vendor/ILiquidityProvider.sol

@@ -0,0 +1,92 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+
+interface ILiquidityProvider {
+
+    /// @dev Trades `inputToken` for `outputToken`. The amount of `inputToken`
+    ///      to sell must be transferred to the contract prior to calling this
+    ///      function to trigger the trade.
+    /// @param inputToken The token being sold.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Arbitrary auxiliary data supplied to the contract.
+    /// @return boughtAmount The amount of `outputToken` bought.
+    function sellTokenForToken(
+        address inputToken,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        returns (uint256 boughtAmount);
+
+    /// @dev Trades ETH for token. ETH must either be attached to this function
+    ///      call or sent to the contract prior to calling this function to
+    ///      trigger the trade.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Arbitrary auxiliary data supplied to the contract.
+    /// @return boughtAmount The amount of `outputToken` bought.
+    function sellEthForToken(
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        payable
+        returns (uint256 boughtAmount);
+
+    /// @dev Trades token for ETH. The token must be sent to the contract prior
+    ///      to calling this function to trigger the trade.
+    /// @param inputToken The token being sold.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of ETH to buy.
+    /// @param auxiliaryData Arbitrary auxiliary data supplied to the contract.
+    /// @return boughtAmount The amount of ETH bought.
+    function sellTokenForEth(
+        address inputToken,
+        address payable recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        returns (uint256 boughtAmount);
+
+    /// @dev Quotes the amount of `outputToken` that would be obtained by
+    ///      selling `sellAmount` of `inputToken`.
+    /// @param inputToken Address of the taker token (what to sell). Use
+    ///        the wETH address if selling ETH.
+    /// @param outputToken Address of the maker token (what to buy). Use
+    ///        the wETH address if buying ETH.
+    /// @param sellAmount Amount of `inputToken` to sell.
+    /// @return outputTokenAmount Amount of `outputToken` that would be obtained.
+    function getSellQuote(
+        address inputToken,
+        address outputToken,
+        uint256 sellAmount
+    )
+        external
+        view
+        returns (uint256 outputTokenAmount);
+}

contracts/zero-ex/contracts/src/vendor/v3/IExchange.sol

@@ -104,4 +104,9 @@ interface IExchange {
         external
         view
         returns (address proxyAddress);
+
+    function EIP712_EXCHANGE_DOMAIN_HASH()
+        external
+        view
+        returns (bytes32 domainHash);
 }

contracts/zero-ex/contracts/src/vendor/v3/IStaking.sol

@@ -0,0 +1,24 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+
+interface IStaking {
+    function joinStakingPoolAsMaker(bytes32) external;
+    function payProtocolFee(address, address, uint256) external payable;
+}

contracts/zero-ex/contracts/src/vendor/v3/LibOrderHash.sol

@@ -0,0 +1,167 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+
+import "./IExchange.sol";
+
+
+library LibOrderHash {
+
+    using LibOrderHash for IExchange.Order;
+
+    // Hash for the EIP712 Order Schema:
+    // keccak256(abi.encodePacked(
+    //     "Order(",
+    //     "address makerAddress,",
+    //     "address takerAddress,",
+    //     "address feeRecipientAddress,",
+    //     "address senderAddress,",
+    //     "uint256 makerAssetAmount,",
+    //     "uint256 takerAssetAmount,",
+    //     "uint256 makerFee,",
+    //     "uint256 takerFee,",
+    //     "uint256 expirationTimeSeconds,",
+    //     "uint256 salt,",
+    //     "bytes makerAssetData,",
+    //     "bytes takerAssetData,",
+    //     "bytes makerFeeAssetData,",
+    //     "bytes takerFeeAssetData",
+    //     ")"
+    // ))
+    bytes32 constant internal _EIP712_ORDER_SCHEMA_HASH =
+        0xf80322eb8376aafb64eadf8f0d7623f22130fd9491a221e902b713cb984a7534;
+
+    /// @dev Calculates the EIP712 typed data hash of an order with a given domain separator.
+    /// @param order The order structure.
+    /// @param eip712ExchangeDomainHash Domain hash for the Exchange.
+    /// @return orderHash EIP712 typed data hash of the order.
+    function getTypedDataHash(IExchange.Order memory order, bytes32 eip712ExchangeDomainHash)
+        internal
+        pure
+        returns (bytes32 orderHash)
+    {
+        orderHash = _hashEIP712Message(
+            eip712ExchangeDomainHash,
+            order.getStructHash()
+        );
+        return orderHash;
+    }
+
+    /// @dev Calculates EIP712 hash of the order struct.
+    /// @param order The order structure.
+    /// @return result EIP712 hash of the order struct.
+    function getStructHash(IExchange.Order memory order)
+        internal
+        pure
+        returns (bytes32 result)
+    {
+        bytes32 schemaHash = _EIP712_ORDER_SCHEMA_HASH;
+        bytes memory makerAssetData = order.makerAssetData;
+        bytes memory takerAssetData = order.takerAssetData;
+        bytes memory makerFeeAssetData = order.makerFeeAssetData;
+        bytes memory takerFeeAssetData = order.takerFeeAssetData;
+
+        // Assembly for more efficiently computing:
+        // keccak256(abi.encodePacked(
+        //     EIP712_ORDER_SCHEMA_HASH,
+        //     uint256(order.makerAddress),
+        //     uint256(order.takerAddress),
+        //     uint256(order.feeRecipientAddress),
+        //     uint256(order.senderAddress),
+        //     order.makerAssetAmount,
+        //     order.takerAssetAmount,
+        //     order.makerFee,
+        //     order.takerFee,
+        //     order.expirationTimeSeconds,
+        //     order.salt,
+        //     keccak256(order.makerAssetData),
+        //     keccak256(order.takerAssetData),
+        //     keccak256(order.makerFeeAssetData),
+        //     keccak256(order.takerFeeAssetData)
+        // ));
+
+        assembly {
+            // Assert order offset (this is an internal error that should never be triggered)
+            if lt(order, 32) {
+                invalid()
+            }
+
+            // Calculate memory addresses that will be swapped out before hashing
+            let pos1 := sub(order, 32)
+            let pos2 := add(order, 320)
+            let pos3 := add(order, 352)
+            let pos4 := add(order, 384)
+            let pos5 := add(order, 416)
+
+            // Backup
+            let temp1 := mload(pos1)
+            let temp2 := mload(pos2)
+            let temp3 := mload(pos3)
+            let temp4 := mload(pos4)
+            let temp5 := mload(pos5)
+
+            // Hash in place
+            mstore(pos1, schemaHash)
+            mstore(pos2, keccak256(add(makerAssetData, 32), mload(makerAssetData)))        // store hash of makerAssetData
+            mstore(pos3, keccak256(add(takerAssetData, 32), mload(takerAssetData)))        // store hash of takerAssetData
+            mstore(pos4, keccak256(add(makerFeeAssetData, 32), mload(makerFeeAssetData)))  // store hash of makerFeeAssetData
+            mstore(pos5, keccak256(add(takerFeeAssetData, 32), mload(takerFeeAssetData)))  // store hash of takerFeeAssetData
+            result := keccak256(pos1, 480)
+
+            // Restore
+            mstore(pos1, temp1)
+            mstore(pos2, temp2)
+            mstore(pos3, temp3)
+            mstore(pos4, temp4)
+            mstore(pos5, temp5)
+        }
+        return result;
+    }
+
+    /// @dev Calculates EIP712 encoding for a hash struct with a given domain hash.
+    /// @param eip712DomainHash Hash of the domain domain separator data, computed
+    ///                         with getDomainHash().
+    /// @param hashStruct The EIP712 hash struct.
+    /// @return result EIP712 hash applied to the given EIP712 Domain.
+    function _hashEIP712Message(bytes32 eip712DomainHash, bytes32 hashStruct)
+        internal
+        pure
+        returns (bytes32 result)
+    {
+        // Assembly for more efficient computing:
+        // keccak256(abi.encodePacked(
+        //     EIP191_HEADER,
+        //     EIP712_DOMAIN_HASH,
+        //     hashStruct
+        // ));
+
+        assembly {
+            // Load free memory pointer
+            let memPtr := mload(64)
+
+            mstore(memPtr, 0x1901000000000000000000000000000000000000000000000000000000000000)  // EIP191 header
+            mstore(add(memPtr, 2), eip712DomainHash)                                            // EIP712 domain hash
+            mstore(add(memPtr, 34), hashStruct)                                                 // Hash of struct
+
+            // Compute hash
+            result := keccak256(memPtr, 66)
+        }
+        return result;
+    }
+}

contracts/zero-ex/contracts/test/TestBridge.sol

@@ -1,19 +1,15 @@
+
 /*
-
   Copyright 2020 ZeroEx Intl.
-
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
-
     http://www.apache.org/licenses/LICENSE-2.0
-
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
-
 */
 
 pragma solidity ^0.6.5;

contracts/zero-ex/contracts/test/TestFillQuoteTransformerBridge.sol

@@ -32,28 +32,26 @@ contract TestFillQuoteTransformerBridge {
         uint256 amount;
     }
 
-    bytes4 private constant ERC20_BRIDGE_PROXY_ID = 0xdc1600f3;
-
-    function bridgeTransferFrom(
-        address tokenAddress,
-        address from,
-        address to,
-        uint256 amount,
-        bytes calldata bridgeData
+    function sellTokenForToken(
+        address takerToken,
+        address makerToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
     )
         external
-        returns (bytes4 success)
+        returns (uint256 boughtAmount)
     {
-        FillBehavior memory behavior = abi.decode(bridgeData, (FillBehavior));
-        TestMintableERC20Token(tokenAddress).mint(
-          to,
-          LibMathV06.getPartialAmountFloor(
-              behavior.makerAssetMintRatio,
-              1e18,
-              behavior.amount
-          )
+        FillBehavior memory behavior = abi.decode(auxiliaryData, (FillBehavior));
+        boughtAmount = LibMathV06.getPartialAmountFloor(
+            behavior.makerAssetMintRatio,
+            1e18,
+            behavior.amount
+        );
+        TestMintableERC20Token(makerToken).mint(
+          recipient,
+          boughtAmount
         );
-        return ERC20_BRIDGE_PROXY_ID;
     }
 
     function encodeBehaviorData(FillBehavior calldata behavior)

contracts/zero-ex/contracts/test/TestFillQuoteTransformerExchange.sol

@@ -35,6 +35,8 @@ contract TestFillQuoteTransformerExchange {
         uint256 makerAssetMintRatio;
     }
 
+    bytes32 public constant EIP712_EXCHANGE_DOMAIN_HASH = 0xaa81d881b1adbbf115e15b849cb9cdc643cad3c6a90f30eb505954af943247e6;
+
     uint256 private constant PROTOCOL_FEE_MULTIPLIER = 1337;
 
     using LibSafeMathV06 for uint256;

contracts/zero-ex/contracts/test/TestInitialMigration.sol

@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../src/ZeroEx.sol";
 import "../src/features/IBootstrapFeature.sol";
 import "../src/migrations/InitialMigration.sol";
+import "../src/features/SimpleFunctionRegistryFeature.sol";
 
 
 contract TestInitialMigration is
@@ -44,7 +45,8 @@ contract TestInitialMigration is
     {
         success = InitialMigration.bootstrap(owner, features);
         // Snoop the bootstrap feature contract.
-        bootstrapFeature = ZeroEx(address(uint160(address(this))))
+        bootstrapFeature =
+            SimpleFunctionRegistryFeature(address(uint160(address(this))))
             .getFunctionImplementation(IBootstrapFeature.bootstrap.selector);
     }
 

contracts/zero-ex/contracts/test/TestLibSignature.sol

@@ -0,0 +1,34 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "../src/features/libs/LibSignature.sol";
+
+
+contract TestLibSignature {
+
+    function getSignerOfHash(bytes32 hash, LibSignature.Signature calldata signature)
+        external
+        pure
+        returns (address signer)
+    {
+        return LibSignature.getSignerOfHash(hash, signature);
+    }
+}

contracts/zero-ex/contracts/test/TestLibTokenSpender.sol

@@ -0,0 +1,72 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
+
+import "../src/features/libs/LibTokenSpender.sol";
+
+contract TestLibTokenSpender {
+    uint256 constant private TRIGGER_FALLBACK_SUCCESS_AMOUNT = 1340;
+
+    function spendERC20Tokens(
+        IERC20TokenV06 token,
+        address owner,
+        address to,
+        uint256 amount
+    )
+        external
+    {
+        LibTokenSpender.spendERC20Tokens(token, owner, to, amount);
+    }
+
+    event FallbackCalled(
+        address token,
+        address owner,
+        address to,
+        uint256 amount
+    );
+
+    // This is called as a fallback when the original transferFrom() fails.
+    function _spendERC20Tokens(
+        IERC20TokenV06 token,
+        address owner,
+        address to,
+        uint256 amount
+    )
+        external
+    {
+        require(amount == TRIGGER_FALLBACK_SUCCESS_AMOUNT,
+            "TokenSpenderFallback/FAILURE_AMOUNT");
+
+        emit FallbackCalled(address(token), owner, to, amount);
+    }
+
+    function getSpendableERC20BalanceOf(
+        IERC20TokenV06 token,
+        address owner
+    )
+        external
+        view
+        returns (uint256)
+    {
+        return LibTokenSpender.getSpendableERC20BalanceOf(token, owner);
+    }
+}

contracts/zero-ex/contracts/test/TestLiquidityProvider.sol

@@ -0,0 +1,135 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "@0x/contracts-erc20/contracts/src/v06/IERC20TokenV06.sol";
+
+
+contract TestLiquidityProvider {
+    event SellTokenForToken(
+        address inputToken,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        uint256 inputTokenBalance
+    );
+
+    event SellEthForToken(
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        uint256 ethBalance
+    );
+
+    event SellTokenForEth(
+        address inputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        uint256 inputTokenBalance
+    );
+
+    IERC20TokenV06 public immutable xAsset;
+    IERC20TokenV06 public immutable yAsset;
+
+    constructor(IERC20TokenV06 xAsset_, IERC20TokenV06 yAsset_)
+        public
+    {
+        xAsset = xAsset_;
+        yAsset = yAsset_;
+    }
+
+    receive() external payable {}
+
+    /// @dev Trades `inputToken` for `outputToken`. The amount of `inputToken`
+    ///      to sell must be transferred to the contract prior to calling this
+    ///      function to trigger the trade.
+    /// @param inputToken The token being sold.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Arbitrary auxiliary data supplied to the contract.
+    /// @return boughtAmount The amount of `outputToken` bought.
+    function sellTokenForToken(
+        address inputToken,
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        returns (uint256 boughtAmount)
+    {
+        emit SellTokenForToken(
+            inputToken,
+            outputToken,
+            recipient,
+            minBuyAmount,
+            IERC20TokenV06(inputToken).balanceOf(address(this))
+        );
+    }
+
+    /// @dev Trades ETH for token. ETH must be sent to the contract prior to
+    ///      calling this function to trigger the trade.
+    /// @param outputToken The token being bought.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of `outputToken` to buy.
+    /// @param auxiliaryData Arbitrary auxiliary data supplied to the contract.
+    /// @return boughtAmount The amount of `outputToken` bought.
+    function sellEthForToken(
+        address outputToken,
+        address recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        returns (uint256 boughtAmount)
+    {
+        emit SellEthForToken(
+            outputToken,
+            recipient,
+            minBuyAmount,
+            address(this).balance
+        );
+    }
+
+    /// @dev Trades token for ETH. The token must be sent to the contract prior
+    ///      to calling this function to trigger the trade.
+    /// @param inputToken The token being sold.
+    /// @param recipient The recipient of the bought tokens.
+    /// @param minBuyAmount The minimum acceptable amount of ETH to buy.
+    /// @param auxiliaryData Arbitrary auxiliary data supplied to the contract.
+    /// @return boughtAmount The amount of ETH bought.
+    function sellTokenForEth(
+        address inputToken,
+        address payable recipient,
+        uint256 minBuyAmount,
+        bytes calldata auxiliaryData
+    )
+        external
+        returns (uint256 boughtAmount)
+    {
+        emit SellTokenForEth(
+            inputToken,
+            recipient,
+            minBuyAmount,
+            IERC20TokenV06(inputToken).balanceOf(address(this))
+        );
+    }
+}

contracts/zero-ex/contracts/test/TestProtocolFees.sol

@@ -0,0 +1,55 @@
+/*
+
+  Copyright 2020 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity ^0.6.5;
+pragma experimental ABIEncoderV2;
+
+import "../src/fixins/FixinProtocolFees.sol";
+
+contract TestProtocolFees is FixinProtocolFees {
+    function collectProtocolFee(
+        bytes32 poolId,
+        uint256 amount,
+        IERC20TokenV06 weth
+    )
+        external
+        payable
+    {
+        _collectProtocolFee(poolId, amount, weth);
+    }
+
+    function transferFeesForPool(
+        bytes32 poolId,
+        IStaking staking,
+        IEtherTokenV06 weth
+    )
+        external
+    {
+        _transferFeesForPool(poolId, staking, weth);
+    }
+
+    function getFeeCollector(
+        bytes32 poolId
+    )
+        external
+        view
+        returns (FeeCollector)
+    {
+        return _getFeeCollector(poolId);
+    }
+}