Breaking Changes
https://github.com/cosmos/iavl/pull/622 export/newExporter() and ImmutableTree.Export() returns error for nil arguements
Unreleased
https://github.com/cosmos/iavl/pull/640 commit NodeDB batch in LoadVersionForOverwriting. https://github.com/cosmos/iavl/pull/636 Speed up rollback method: LoadVersionForOverwriting. https://github.com/cosmos/iavl/pull/654 Add API TraverseStateChanges to extract state changes from iavl versions. https://github.com/cosmos/iavl/pull/638 Make LazyLoadVersion check the opts.InitialVersion, add API LazyLoadVersionForOverwriting.
Full Changelog: https://github.com/cosmos/iavl/compare/v0.19.4...v0.19.5