incrementalmerkletree/incrementalmerkletree-testing/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Rust's notion of Semantic Versioning.

Unreleased

[0.3.0] - 2025-01-30

Changed

• Updated to incrementalmerkletree 0.8

[0.2.0] - 2024-10-04

This release includes a significant refactoring and rework of several methods of the incrementalmerkletree_testing::Tree trait. Please read the notes for this release carefully as the semantics of important methods have changed. These changes may require changes to example tests that rely on this crate; in particular, additional checkpoints may be required in circumstances where rewind operations are being applied.

Changed

• incrementalmerkletree_testing::Tree
  • Added method Tree::checkpoint_count.
  • Tree::root now takes its checkpoint_depth argument as Option<usize> instead of usize. Passing None to this method will now compute the root given all of the leaves in the tree; if a Some value is passed, implementations of this method must treat the wrapped usize as a reverse index into the checkpoints added to the tree, or return None if no checkpoint exists at the specified index. This effectively modifies this method to use zero-based indexing instead of a muddled 1-based indexing scheme.
  • Tree::rewind now takes an additional checkpoint_depth argument, which is non-optional. Rewinding the tree may now only be performed if there is a checkpoint at the specified depth to rewind to. This depth should be treated as a zero-based reverse index into the checkpoints of the tree. Rewinding no longer removes the checkpoint being rewound to; instead, it removes the effect all state changes to the tree resulting from operations performed since the checkpoint was created, but leaves the checkpoint itself in place.

[0.1.0] - 2024-09-25

Initial release.