Solidity Contracts v2.0.0

cosmos/ibc-contractssolidity-v2.0.005-06-2025

IBC Solidity Contracts v2.0.0

The v2.0.0 release of the IBC Solidity Contracts enables:

• Deploying and registering custom ERC20s to be used for foreign denoms

• Updating light clients through ICS26Router without needing to go through a packet flow

• A simpler migrateClient flow that does not require registering a new intermediary client before migrating/upgrading the intended client

This is a breaking change release of the IBC Solidity contracts.

See the pull requests referenced below for the relevant changes to interfaces and events.

What's Changed

• imp: enable use of custom ERC20s as IBCERC20 by @srdtrk in #523

• feat: allow the relayer to update client without relaying packets by @srdtrk in #528

• imp: simplified `migrateClient` by @srdtrk in #533

Full Changelog : solidity-v1.1.0...solidity-v2.0.0