v7.9.2

This release contains a fix to ASA-2025-004

It is recommended to upgrade to this version as soon as possible.

Full Changelog: v7.8.0...v7.9.2

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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 v0.50.9 and ibc-go v8.5.1, 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.
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.
8. The migration from ibc-go v7 to v7.1.
9. The migration from ibc-go v7.2 to v7.3.

modules/light-clients/08-wasm/v0.5.0+ibc-go-v8.4-wasmvm-v1.2

‼️ Please note: This is a state machine breaking change and will require a coordinated upgrade.

The changes in this release:

Dependencies

• #7735 Bump wasmvm to v2.1.4 * (NOTE: This is a state machine breaking dependency update)

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In order to use this release, please follow the steps to import git commit 3f2a900.

Full Changelog: modules/light-clients/08-wasm/v0.4.1+ibc-go-v8.4-wasmvm-v2.0...modules/light-clients/08-wasm/v0.5.0+ibc-go-v8.4-wasmvm-v1.2

modules/light-clients/08-wasm/v0.4.0+ibc-go-v7.4-wasmvm-v1.5

‼️ Please note: This is a state machine breaking change and will require a coordinated upgrade.

The changes in this release:

Dependencies

• #7744 Bump wasmvm to 1.5.6 * (NOTE: This is state machine breaking change)

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In order to use this release, please follow the steps to import git commit 8392c48.

Full Changelog: modules/light-clients/08-wasm/v0.3.1+ibc-go-v7.4-wasmvm-v1.5...modules/light-clients/08-wasm/v0.4.0+ibc-go-v7.4-wasmvm-v1.5

v8.5.2

We present here a summary of the most relevant changes, please see the v8.5.2 changelog for more details.

Testing

• #7430 Update the block proposer in test chains for each block.

Bug Fixes

• (core/03-connection) #7397 Skip the genesis validation connectionID for localhost client.

v8.5.1

This release fixes a panic that occurred during instantiation of the interchain accounts host keeper when populating the list of all module safe queries and port definitions were not found. The solution implemented is to use the cosmos/gogoproto registry instead of including the entire merged global files registry. Please check the v8.5.1 changelog for more details. Big thanks to @damiannolan for resolving this issue!

---

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 v0.50.9 and ibc-go v8.5.1, 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.
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.
8. The migration from ibc-go v7 to v7.1.
9. The migration from ibc-go v7.2 to v7.3.
10. The migration from ibc-go v7 to v8.
11. The migration from ibc-go v8 to v8.1.

v8.5.0

We present here a summary of the most relevant changes, please see the v8.5.0 changelog for more details. Please note that this release, as indicated in our release versioning policy, is state machine breaking and requires a coordinated upgrade.

dependencies

• Cosmos SDK has been bumped to v0.50.9.
• ics23 has been bumped to v0.11.0.

core/03-connection

• We have removed from the connection handshake the verification step that guaranteed that the client state and consensus state stored by the light client on the counterparty is a correct representation of the chain and its consensus state. Please check cosmos/ibc#1121 for more details and rationale.

---

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 v0.50.9 and ibc-go v8.5.0, 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.
8. The migration from ibc-go v7 to v7.1.
9. The migration from ibc-go v7.2 to v7.3.
10. The migration from ibc-go v7 to v8.
11. The migration from ibc-go v8 to v8.1.

v7.8.0

We present here a summary of the most relevant changes, please see the v7.8.0 changelog for more details. Please note that this release, as indicated in our release versioning policy, is state machine breaking and requires a coordinated upgrade.

core/03-connection

• We have removed from the connection handshake the verification step that guaranteed that the client state and consensus state stored by the light client on the counterparty is a correct representation of the chain and its consensus state. Please check cosmos/ibc#1121 for more details and rationale.

---

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 v0.47.13 and ibc-go v7.8.0, 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.
8. The migration from ibc-go v7 to v7.1.
9. The migration from ibc-go v7.2 to v7.3.

modules/light-clients/08-wasm/v0.4.1+ibc-go-v8.4-wasmvm-v2.0

This release amends the release of 08-wasm v0.4.0 with ibc-go v8.3 to bump the version of ibc-go to v8.4 as v8.3 was redacted. No additional commits have been made.

In order to use this release, please follow the steps to import git commit ccd4dc2.

modules/light-clients/08-wasm/v0.3.1+ibc-go-v7.4-wasmvm-v1.5

This release amends the release of 08-wasm v0.3.0 with ibc-go v7.3 to bump the version of ibc-go to v7.4 as v7.3 was redacted. No additional commits have been made.

In order to use this release, please follow the steps to import git commit 13c071f.

v8.4.0

We present here a summary of the most relevant changes, please see the v8.4.0 changelog for more details. Please note that this release, as indicated in our release versioning policy, is state machine breaking and requires a coordinated upgrade.

core/04-channel

• An extra check has been added to the ChannelUpgradeConfirm handler to make sure that the upgrades are compatible and thus prevent that an upgrade completes with channel ends in incompatible state. We have retracted v8.2.x and v8.3.x and all chains planning to use channel upgradability are strongly recommended to upgrade to this version. Thank you very much to @siburu and @bluele for responsibly reporting this bug through our bug bounty program.

apps/transfer

• If the Amount of the Token field in MsgTransfer is set to the maximum value for a 256-bit unsigned integer (i.e. 2^256 - 1), then the whole balance of the corresponding denomination will be transferred. The helper function UnboundedSpendLimit in the types package of the transfer module provides the sentinel value that can be used.

---

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 v0.50.7 and ibc-go v8.4.0, 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.
8. The migration from ibc-go v7 to v7.1.
9. The migration from ibc-go v7.2 to v7.3.
10. The migration from ibc-go v7 to v8.
11. The migration from ibc-go v8 to v8.1.