openzeppelin-solidity - npm Package Versions

2.2.0 (2019-03-14)

New features

• 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)
• SafeERC20: ERC20 contracts with no return value (i.e. that revert on failure) are now supported. (#1655)
• ERC20: added internal _approve(address owner, address spender, uint256 value), allowing derived contracts to set the allowance of arbitrary accounts. (#1609)
• ERC20Metadata: added internal _setTokenURI(string memory tokenURI). (#1618)
• 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.

Improvements

• Upgraded the minimum compiler version to v0.5.2: this removes many Solidity warnings that were false positives. (#1606)
• ECDSA: recover no longer accepts malleable signatures (those using upper-range values for s, or 0/1 for v). (#1622)
• ERC721's transfers are now more gas efficient due to removal of unnecessary SafeMath calls. (#1610)
• Fixed variable shadowing issues. (#1606)

Bugfixes

• (minor) SafeERC20: safeApprove wasn't properly checking for a zero allowance when attempting to set a non-zero allowance. (#1647)

Breaking changes in drafts

• TokenMetadata has been renamed to ERC20Metadata. (#1618)
• The library Counter has been renamed to Counters and its API has been improved. See an example in ERC721, lines 17 and 204. (#1610)

2.1.3 (2019-02-26)

• Backported SafeERC20.safeApprove bugfix. (#1647)

2.1.2 (2019-01-17)

• Removed most of the test suite from the npm package, except PublicRole.behavior.js, which may be useful to users testing their own Roles.

2.1.1 (2019-01-04)

• Version bump to avoid conflict in the npm registry.