v2.2.1

UPDATES

• 27th October 2022: This release is NOT recommended since it uses a version of the Cosmos SDK impacted by the dragonberry security advisory. Please use version >= 2.4.2.

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This release introduces some improvements and bug fixes. We present here the most relevant changes, but please see the v2.2.1 changelog for the full set of changes included in this release.

core/04-channel

• A channel closed event is now emitted when a timeout occurs for an ordered channel.

apps/transfer

• The DenomTrace gRPC method and CLI query can now take as argument either a trace hash or a full IBC denom prefixed with ibc/.
• The sender address is now added in the event emitted in the OnRecvPacket and OnAcknowledgementPacket callbacks.

Special thanks to our external contributors on this release: @catShaark @fedekunze

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To learn more about ibc-go versioning, please read our RELEASES.md.

IMPORTANT: Please read the migration guides for any versions of ibc-go that you might be going through when upgrading to this version. For example: if you upgrade from the IBC module contained in the Cosmos SDK 0.42.0 to SDK v0.45.1 and ibc-go v2.2.1, please follow:

1. The migration from SDK 0.41.x or 0.42.x to the IBC module in the ibc-go repository based on the SDK v0.44.x.
2. The migration from ibc-go v1 to v2.