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finalize changelog and release notes #8804

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finalize changelog and release notes #8804

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finalize changelog and release notes
Mar 5, 2021
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Update CHANGELOG.md
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Update RELEASE_NOTES.md
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -41,6 +41,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
### Improvements

* (x/ibc) [\#8624](https://github.com/cosmos/cosmos-sdk/pull/8624) Emit full header in IBC UpdateClient message.
* (x/crisis) [\#8621](https://github.com/cosmos/cosmos-sdk/issues/8621) crisis invariants names now print to loggers.

### Bug fixes

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15 changes: 12 additions & 3 deletions RELEASE_NOTES.md
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@@ -1,7 +1,16 @@
# Cosmos SDK v0.42.0 "Stargate" Release Notes

This release contains a single, but important security fix for all non "Cosmos Hub" chains (e.g. any chain that does not use the default `cosmos` bech32 prefix). The fix addresses a bug in evidence handling on the Cosmos SDK that rendered the `v0.41.x` and `v0.40.x` release series unsafe for most chains. Please see the PR below for more details.
This release includes an important security fix for all non "Cosmos Hub" chains (e.g. any chain that does not use the default `cosmos` bech32 prefix), and a few performance improvements.
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## Bug Fixes
See the [Cosmos SDK v0.42.0 milestone](https://github.com/cosmos/cosmos-sdk/milestone/42?closed=1) on our issue tracker for further details.

- [#8461](https://github.com/cosmos/cosmos-sdk/pull/8461) Fix bech32 prefix in evidence validator address conversion
# Security fix: validator address conversion in evidence handling

The security fix resolves the issue regarding incorrect handling of validators' consensus addresses. Because of this incorrect handling, Cosmos SDK apps that were not using the default `cosmos` Bech32 address prefix were not able to jail validators that committed misbehaviors such as double signing.

Although the issue does **not** affect the Cosmos Hub, this issue potentially renders the `v0.41` and `v0.40` release series unsafe for most chains.

# Full header is emitted on IBC UpdateClient message event

The event emitted by the IBC UpdateClient message now contains the full header.
This change makes header tracking easier and improves the handling of misbehaviors.