# Changelog of Dataset Diff: See What Changed & Why (`hiredhandai/dataset-diff-explainer`) Actor

- **URL**: https://apify.com/hiredhandai/dataset-diff-explainer/changelog.md
- **Full Actor documentation**: https://apify.com/hiredhandai/dataset-diff-explainer.md

## Changelog

### 0.1.0 (unreleased)

First version.

- Compare two datasets, inline records, or a dataset against a saved snapshot, by key.
- Auto-detected or explicit keys (composite, URL-aware), duplicate and missing-key policies.
- Field-level, plain-English changes with numeric deltas, text similarity and list additions/removals.
- Noise control: whitespace, case, numeric strings, ISO dates, empty-versus-missing, list order, numeric tolerance, built-in ignore list for timestamps and run metadata, with counts of what was suppressed.
- Alert rules with severity (`changed`, `increased`, `decreased`, `became`, `became_empty`, `became_nonempty`, `added`, `removed`, `matches`, `crossed`).
- Optional fuzzy re-pairing of renamed records.
- Memory and low-memory strategies with identical results.
- `REPORT.html` and `REPORT.md`.
- Pay-per-event charging for compared records and reported changes (prices are a proposal until approved).