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update changelog

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Hongrui Fang 2022-11-29 00:15:14 +08:00
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CHANGELOG.md
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@ -6,6 +6,17 @@ This format is based on [Keep A Changelog](https://keepachangelog.com/en/1.0.0).
### Modified
- Fix several vulnerabilities and bugs found by auditors.
Including:
- Stake locks can be removed without retracting votes. This is a bug
introduced in the refactoring of `premoveLocks` by #209.
- Stake can retract all votes in its cooldown period.
- Inconsistent delegate authority checking may fail in some cases, where the
delegate votes with own and delegated stakes.
Included by [#212](https://github.com/Liqwid-Labs/agora/pull/212)
- Mitigate potential DDoS attack(voting and unlocking repeatedly)
We fix this issue by posing cooldown time while retracting votes, encoded in