Sourced from github.com/cosmos/ibc-go/v7's releases.

v7.4.0

This release includes a fix for the ASA-2024-007 security advisory. Credits to Maxwell Dulin (@​mdulin2) at Asymmetric Research for the discovery and disclosure via our bug bounty program.

Please note that this release, as indicated in our release versioning policy, is state machine breaking and requires a coordinated upgrade.

Please see the v7.4.0 changelog for the full set of changes included in this release.

---

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 v0.47.8 and ibc-go v7.4.0, 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.
3. The migration from ibc-go v2 to v3.
4. The migration from ibc-go v3 to v4.
5. The migration from ibc-go v4 to v5.
6. The migration from ibc-go v5 to v6.
7. The migration from ibc-go v6 to v7.

v7.3.2

UPDATES

• 5th April 2024: This release is NOT recommended since it is impacted by the ASA-2024-007 security advisory. Please use version >= 7.4.0.

---

We present here a summary of the most relevant changes, please see the v7.3.2 changelog for the full set of changes included in this release.

dependencies

• Cosmos SDK has been bumped to v0.47.8.
• CometBFT has been bumped to v0.37.4.

core

• The emission of events on erroneous IBC application callbacks was removed due to the huckleberry security advisory. Since then, many users have been unable to debug their IBC applications effectively causing a considerable uptick in support requests across many chains. In this release we are introducing re-enabling emission of events on erroneous IBC application callbacks by appending the prefix ibccallbackerror- to all event type and attribute keys.

Special thanks to our external contributors in this release: @​emidev98

---

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 v0.47.8 and ibc-go v7.3.2, 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.
3. The migration from ibc-go v2 to v3.

... (truncated)

Sourced from github.com/cosmos/ibc-go/v7's changelog.

v7.4.0 - 2024-04-05

v7.3.2 - 2024-01-31

Dependencies

• #5717 Update Cosmos SDK to v0.47.8 and CometBFT to v0.37.4.

Improvements

• (core) #5541 Enable emission of events on erroneous IBC application callbacks by appending a prefix to all event type and attribute keys.

Bug Fixes

• (apps/27-interchain-accounts) #4944 Add missing proto interface registration.

v7.3.1 - 2023-10-20

Dependencies

• #4539 Update Cosmos SDK to v0.47.5.

Improvements

• (apps/27-interchain-accounts) #4537 Add argument to generate-packet-data cli to choose the encoding format for the messages in the ICA packet data.

Bug Fixes

• (apps/transfer) #4709 Order query service RPCs to fix availability of denom traces endpoint when no args are provided.

v7.3.0 - 2023-08-31

Dependencies

• #4122 Update Cosmos SDK to v0.47.4.

Improvements

• #4187 Adds function WithICS4Wrapper to keepers to allow to set the middleware after the keeper's creation.
• (light-clients/06-solomachine) #4429 Remove IBC key from path of bytes signed by solomachine and not escape the path.

Features

• (apps/27-interchain-accounts) #3796 Adds support for json tx encoding for interchain accounts.
• #4188 Adds optional PacketDataUnmarshaler interface that allows a middleware to request the packet data to be unmarshaled by the base application.
• #4199 Adds optional PacketDataProvider interface for retrieving custom packet data stored on behalf of another application.
• #4200 Adds optional PacketData interface which application's packet data may implement.

Bug Fixes

... (truncated)

• 802ca26 Update CHANGELOG.md
• 90c6f37 update changelog before v7.4.0
• e78b3a2 Merge pull request from GHSA-j496-crgh-34mx
• 373fc7f Update CHANGELOG.md
• 747eb6f update changelog before v7.3.2 release
• 5a45eda deps(release/v7.3.x): update sdk v0.47.8 (#5717)
• 825fe90 imp(core): allow huckleberry events with a prefix (backport #5541) (#5574)
• bef2278 fix(msg): register proto interface (backport #4944) (#4953)
• d73c6d0 Update CHANGELOG.md
• bc74146 prepare changelog for v7.3.1 release
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