Add changelog entry

3843c9be · Nicolás Venturo · c75b0169 · 3843c9be
Commit 3843c9be authored Apr 24, 2020 by Nicolás Venturo
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CHANGELOG.md CHANGELOG.md +5 -0

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 # Changelog
+## 2.5.1 (unreleased)
+### Bugfixes
+ * `ERC777`: fixed the `_send` and `_approve` internal functions not validating some of their arguments for non-zero addresses. ([#2212](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2212))
 ## 2.5.0 (2020-02-04)
 ### New features