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# Changelog
## 2.2.0 (unreleased)
## 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](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1617))