# Changelog of Merge CSV Files & Datasets: Remove Duplicates, Excel, JSON (`aurelix/dataset-merge-dedup`) Actor

- **URL**: https://apify.com/aurelix/dataset-merge-dedup/changelog.md
- **Full Actor documentation**: https://apify.com/aurelix/dataset-merge-dedup.md

## Changelog: Merge CSV Files & Datasets: Remove Duplicates, Excel, JSON

### 0.3

- 1 GB default memory; conservative URL and number matching (fragments and other parameters kept, no phone guessing); per-MB read fee; only-new memory saved after every batch; Excel capped by its text table; keep last recovers when a source breaks in the second pass.

### 0.2

- Stricter smart matching (signs, decimals and leading zeros kept; schemeless URLs normalised); only-new also remembers rows without dedupe values; keep last stays correct when a source breaks; compact only-new memory; Excel streamed; bare dataset names accepted.

### 0.1

- First release: datasets, CSV, TSV, JSON, JSON Lines, Excel and Google Sheets links, smart matching, keep first or last, only-new mode, STATS record.