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Changelog

0.10.1

Rust

The only change in this release of the ics23 crate is the addition of a serde feature which adds ProtoJSON-compatible Serialize and Deserialize instances on all Protobuf definitions via the pbjson-build crate.

Full changes

  • feat(rust): Add ProtoJSON-compatible Serialize and Deserialize instances on all Protobuf definitions via pbjson (#146)

0.10.0

Go / Rust / TypeScript

This release introduces one single boolean new parameter to the top-level ProofSpec: prehash_compare_key. When set to true, this flag causes keys to be consistently compared lexicographically according to their hashes within nonexistence proof verification, using the same hash function as specified by the already-extant prehash_key field.

This is a backwards-compatible change, as it requires opt-in via setting the prehash_compare_key flag to true in the ProofSpec. All existing ProofSpecs will continue to behave identically.

Please note that the version of the TypeScript library has been bump from 0.6.8 to 0.10.0 to align it with the Go and Rust implementations.

Full changes

  • feat: Add prehash_compare_key to allow proving nonexistence in sparse trees (#136)
  • chore: retract previous versions (#131)
  • fix: protobuf formatting using clang-format (#129)
  • fix: use /go suffix in go package option (#127)
  • add buf support to repo (#126)
  • chore: Add Cosmos, license and coverage badges to the README (#122)
  • ci: Enable code coverage for TypeScript version (#123)
  • ci: Add tags to codecov reports (#121) (4 months ago)
  • ci: Refactor GitHub workflows and add code coverage job (#120)

0.9.0

Go

Release of ics23/go including changes made in the fork of ics23/go housed in the Cosmos SDK.

Rust

This release includes the same changes as its Go counterpart.

0.8.1

Rust (ics23)

  • Fix no_std compatibility and add check for this on CI (#104)

0.8.0

Rust (ics23)

The following functions have been made generic over a new trait HostFunctionProvider:

  • calculate_existence_root
  • verify_batch_membership
  • verify_batch_non_membership
  • verify_membership
  • verify_non_membership

For wasm32-unknown-unknown environments this trait allows you to delegate hashing functions to a native implementation through host functions.

With the host-functions feature (enabled by default), you can simply use ics23::HostFunctionManager as this provides a default implementation of this trait.

v0.7.0

This handles non-existence tests for empty branches properly. This is needed for properly handling proofs on Tries, like the SMT being integrated with the Cosmos SDK.

This is used in ibc-go v3

0.6.x

This handles proofs for normal merkle trees, where every branch is full. This works for tendermint merkle hashes and iavl hashes, and should work for merk (nomic's db) proofs.

This was used in the original ibc release (cosmos sdk v0.40) and up until ibc-go v2.