In this minor release we’re bringing back some features that were removed for the 2.0 release, adding new contracts requested by the community, and making some popular operations more gas efficient.
To install the release candidate run
npm install openzeppelin-solidity@next. We want to hear what you think!
The actual 2.1 release will come out after a week of no changes to the release candidate.
WhitelistCrowdsale, a crowdsale where only whitelisted accounts (
WhitelistedRole) can purchase tokens. Adding or removing accounts from the whitelist is done by whitelisters (
WhitelisterRole). Similar to the pre-2.0
Approvalevents, to represent the token’s state comprehensively through events. (#1524)
SafeMathnow also supports signed integers (
ERC721are now more gas efficient due to removed redundant
requires. (#1409 and #1549)
See the details in our brand new CHANGELOG!