v0.47.0

Cosmos SDK v0.47.0 Release Notes

✨ Official Release Announcement

💬 Release Discussion

📝 Changelog

Check out the changelog for an exhaustive list of changes or compare changes from last release.

Refer to the upgrading guide when migrating from v0.46.x to v0.47.0.

🚀 Highlights

• Upgrade to CometBFT v0.37.0.

  • With the notable introduction of ABCI 1.0.
  • Changes of events keys and values from []byte to string.

• Support of ABCI 1.0 in the SDK.

  • Allows chains to set their own mempool implementation. Follow the guide here.
  • Support of the new PrepareProposal and ProcessProposal ABCI methods.

• Deprecation of the x/params module.

  • Modules params are now handled directly by the modules themselves, via the MsgUpdateParams message.
  • All core SDK modules have migrated away from using x/params. It is recommended to migrate your custom modules as well.

• Migration from gogo/protobuf to cosmos/gogoproto.

  • The SDK was using the now unmaintained gogo/protobuf library. This has been replaced by cosmos/gogoproto which is a fork of gogo/protobuf with some improvements and fixes, that is maintained by the Cosmos SDK team.
  • This change is not transparent for applications developers. All proto files should be regenerated with the new library.
  • Use the ghcr.io/cosmos/proto-builder image (version >= 0.11.5) for generating protobuf files.

• App Wiring with dependency injection.

  • App Wiring is ready for community feedback. It allows developers to build a chain with less boilerplate by removing the need to manually wire a chain.
  • Community feedback will be implemented in the following releases which can lead to API breakage (runtime and depinject are pre-1.0).
  • Manually wiring an application is still possible and will always remain supported.

• Removal of the proposer-based rewards from x/distribution.

  • This removes unfairness towards smaller validators.

• Re-addition of title and summary fields on group and gov proposals.

  • In v0.46 with x/gov v1, these fields were not present (while present in v1beta1). After community feedback, they have been added in x/gov v1.

• Refactoring of tests in the SDK and addition of the simtestutil package, for facilitating testing without depending on simapp.

  • Any dependencies on simapp in an application must be removed going forward.

❤️ Contributors

• Binary Builders (@binary_builders)
• Crypto.com (@cronos_chain)
• Interchain GmbH (@interchain_io)
• Notional (@notionaldao)
• Osmosis (@osmosiszone)
• Regen Network (@regen_network)
• Vitwit (@vitwit_)

This list is non-exhaustive and ordered alphabetically.
Thank you to everyone who contributed to this release!