Interchain Security v4.2.0 Release Notes

❗ Note this release is ONLY relevant to providers

📝 Changelog

Check out the changelog for a list of relevant changes or compare all changes from last release.

Refer to the upgrading guide when migrating from v4.1.x to v4.2.x.

🚀 Highlights

This release introduces ICS 2.0, also known as the Partial Set Security (PSS) feature (cf. ADR 015). PSS allows consumer chains to leverage only a subset of validators from the provider chain and enables provider validators to opt-in to validate only on the consumer chains they want. For more details, check out the ICS docs.

This releases also introduces the power-shaping feature that gives consumer chains more flexibility in choosing their validator set. For more details, check out the ICS docs.