# Cosmos SDK v0.55.0 Release Notes

## 🚀 Highlights

Announcing Cosmos SDK v0.55

We are pleased to announce the release of Cosmos SDK v0.55! We’re excited to be delivering a new version of the Cosmos SDK that provides key features and updates around consensus key rotation and new post quantum key types.

Upgrading to this version of the Cosmos SDK from any `v0.54.x` release will **require a coordinated chain upgrade**.

For more upgrade information, check out our [upgrading guide](https://github.com/cosmos/cosmos-sdk/blob/v0.55.0/UPGRADING.md)

## 📝 Changelog

Check out the [changelog](https://github.com/cosmos/cosmos-sdk/blob/v0.55.0/CHANGELOG.md) for an exhaustive list of changes, or [compare changes](https://github.com/cosmos/cosmos-sdk/compare/v0.54.3...v0.55.0) from the last release.
