5a2b349992
* IERC777 from specs, constants returned, up to defaultOperators. (#1159) * IERC777 oprarator approvals (#1159) * ERC777 oprarator approvals fixes and tests * IERC777 send and receive with ERC820 (#1159) * ERC777 Add burn functions and fix send functions (#1159) * ERC777 Make expectEvent compatible with web3.js 1.0 (#1159) * ERC777 Add ERC820 deploy script (#1159) * ERC777 Complete implementation of ERC777 (#1159) This implementation conforms to the current EIP * ERC777 Update ERC820 Registry contract to final version (#1159) * ERC777 Move contracts to 'drafts' folder (#1159) * ERC777: Update to ERC1820 registry and linter error fix (#1159) * ERC777: implement recent changes of EIP777 (#1159) * ERC777 Fix formatting (#1159) * ERC777 Update to solc 0.5.2 (#1159) * ERC777 Fix travis CI errors (#1159) * ERC777 Fix linter errors again... (#1159) * ERC777 Fix unit test (#1159) * ERC777 Fix unit test again (#1159) * Remove extra newlines. * Rename ERC777Base to ERC777. * Remove 'Token' from contract names. * Replace ops for operators. * Move operator check out of _send. * Remove ERC777Burnable. * Remove ERC1820Client, now using the interface directly. * Minor internal refactors in contracts. * Delete extra test helpers. * Simplified tests. * Add basic 777 tests. * Add granularity send test. * Add first operator send tests. * Add burn tests. * Refactor send and burn tests. * Improve send burn refactor. * Greatly improve test module. * Burn instead of send removed tokens. * Add operator tests. * Improve send tests under changing operators. * Refactor and merge send and burn tests. * Add missing and not-implemented tests. * Make _burn private. * Fix typo. * Greatly improve tokensToSend tests. * Refactor hook tests. * Fix hook tests. * Update openzeppelin-test-helpers and ERC1820 address. * Fix natspec indentation. * Make interface functions external. * Remove redundant private revoke and authorize functions. * Improved readability of if statement. * Remove unnecessary asserts. * Add non-one granularity test. * Fix hook call order in _mint. * Fix _mint not reverting on failure to implement tokensReceived. * Remove special case in operatorFn when from is 0. * Refactor ERC777SenderMock. * Add tokensReceived tests. * switch to updated ganache-cli-coverage fork * Fix linter errors. * Add mint tests. * Fix linter errors. * Fix tests. * Update test/drafts/ERC777/ERC777.test.js Co-Authored-By: nventuro <nicolas.venturo@gmail.com> * Add changelog entry.
68 lines
7.1 KiB
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68 lines
7.1 KiB
Markdown
# Changelog
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## 2.3.0 (unreleased)
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### New features:
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* `ERC1820`: added support for interacting with the [ERC1820](https://eips.ethereum.org/EIPS/eip-1820) registry contract (`IERC1820Registry`), as well as base contracts that can be registered as
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implementers there. ([#1677](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1677))
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* `ERC777`: initial support for the [ERC777 token](https://eips.ethereum.org/EIPS/eip-777), which has multiple improvements over `ERC20` such as built-in burning, a more straightforward permission system, and optional sender and receiver hooks on transfer (mandatory for contracts!). ([#1684](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1684))
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## 2.2.0 (2019-03-14)
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### New features:
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* `ERC20Snapshot`: create snapshots on demand of the token balances and total supply, to later retrieve and e.g. calculate dividends at a past time. ([#1617](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1617))
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* `SafeERC20`: `ERC20` contracts with no return value (i.e. that revert on failure) are now supported. ([#1655](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1655))
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* `ERC20`: added internal `_approve(address owner, address spender, uint256 value)`, allowing derived contracts to set the allowance of arbitrary accounts. ([#1609](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1609))
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* `ERC20Metadata`: added internal `_setTokenURI(string memory tokenURI)`. ([#1618](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1618))
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* `TimedCrowdsale`: added internal `_extendTime(uint256 newClosingTime)` as well as `TimedCrowdsaleExtended(uint256 prevClosingTime, uint256 newClosingTime)` event allowing to extend the crowdsale, as long as it hasn't already closed.
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### Improvements:
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* Upgraded the minimum compiler version to v0.5.2: this removes many Solidity warnings that were false positives. ([#1606](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1606))
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* `ECDSA`: `recover` no longer accepts malleable signatures (those using upper-range values for `s`, or 0/1 for `v`). ([#1622](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1622))
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* `ERC721`'s transfers are now more gas efficient due to removal of unnecessary `SafeMath` calls. ([#1610](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1610))
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* Fixed variable shadowing issues. ([#1606](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1606))
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### Bugfixes:
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* (minor) `SafeERC20`: `safeApprove` wasn't properly checking for a zero allowance when attempting to set a non-zero allowance. ([#1647](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1647))
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### Breaking changes in drafts:
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* `TokenMetadata` has been renamed to `ERC20Metadata`. ([#1618](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1618))
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* The library `Counter` has been renamed to `Counters` and its API has been improved. See an example in `ERC721`, lines [17](https://github.com/OpenZeppelin/openzeppelin-solidity/blob/3cb4a00fce1da76196ac0ac3a0ae9702b99642b5/contracts/token/ERC721/ERC721.sol#L17) and [204](https://github.com/OpenZeppelin/openzeppelin-solidity/blob/3cb4a00fce1da76196ac0ac3a0ae9702b99642b5/contracts/token/ERC721/ERC721.sol#L204). ([#1610](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1610))
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## 2.1.3 (2019-02-26)
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* Backported `SafeERC20.safeApprove` bugfix. ([#1647](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1647))
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## 2.1.2 (2019-01-17)
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* Removed most of the test suite from the npm package, except `PublicRole.behavior.js`, which may be useful to users testing their own `Roles`.
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## 2.1.1 (2019-01-04)
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* Version bump to avoid conflict in the npm registry.
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## 2.1.0 (2019-01-04)
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### New features:
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* Now targeting the 0.5.x line of Solidity compilers. For 0.4.24 support, use version 2.0 of OpenZeppelin.
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* `WhitelistCrowdsale`: a crowdsale where only whitelisted accounts (`WhitelistedRole`) can purchase tokens. Adding or removing accounts from the whitelist is done by whitelist admins (`WhitelistAdminRole`). Similar to the pre-2.0 `WhitelistedCrowdsale`. ([#1525](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1525), [#1589](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1589))
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* `RefundablePostDeliveryCrowdsale`: replacement for `RefundableCrowdsale` (deprecated, see below) where tokens are only granted once the crowdsale ends (if it meets its goal). ([#1543](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1543))
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* `PausableCrowdsale`: allows for pausers (`PauserRole`) to pause token purchases. Other crowdsale operations (e.g. withdrawals and refunds, if applicable) are not affected. ([#832](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/832))
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* `ERC20`: `transferFrom` and `_burnFrom ` now emit `Approval` events, to represent the token's state comprehensively through events. ([#1524](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1524))
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* `ERC721`: added `_burn(uint256 tokenId)`, replacing the similar deprecated function (see below). ([#1550](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1550))
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* `ERC721`: added `_tokensOfOwner(address owner)`, allowing to internally retrieve the array of an account's owned tokens. ([#1522](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1522))
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* Crowdsales: all constructors are now `public`, meaning it is not necessary to extend these contracts in order to deploy them. The exception is `FinalizableCrowdsale`, since it is meaningless unless extended. ([#1564](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1564))
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* `SignedSafeMath`: added overflow-safe operations for signed integers (`int256`). ([#1559](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1559), [#1588](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1588))
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### Improvements:
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* The compiler version required by `Array` was behind the rest of the libray so it was updated to `v0.4.24`. ([#1553](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1553))
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* Now conforming to a 4-space indentation code style. ([1508](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1508))
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* `ERC20`: more gas efficient due to removed redundant `require`s. ([#1409](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1409))
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* `ERC721`: fixed a bug that prevented internal data structures from being properly cleaned, missing potential gas refunds. ([#1539](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1539) and [#1549](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1549))
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* `ERC721`: general gas savings on `transferFrom`, `_mint` and `_burn`, due to redudant `require`s and `SSTORE`s. ([#1549](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1549))
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### Bugfixes:
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### Breaking changes:
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### Deprecations:
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* `ERC721._burn(address owner, uint256 tokenId)`: due to the `owner` parameter being unnecessary. ([#1550](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1550))
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* `RefundableCrowdsale`: due to trading abuse potential on crowdsales that miss their goal. ([#1543](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1543))
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