# Changelog

## v0.3.0-preview (2026-06-16)

- Added v0.3 quality/diversity workflow documentation: cap legal/parliamentary/official-document sources, use source-level temperature sampling, and evaluate per-source perplexity/style contamination.
- Added source candidate review artifacts for contemporary Polish web and other possible additions.
- Reviewed TVP Info-derived news data and blocked it until explicit upstream open-license evidence or permission is available.
- Added European HPLT Polish web filtering workflow:
  - `src/filter_european_hplt.py` supports chunked parquet output, explicit `HF_TOKEN`, and filtering specific HF parquet data files.
  - `src/launch_hplt_parallel.py` launches parallel workers across the actual HF train shard list.
- Current local HPLT candidate snapshot: 565,827 documents, 496,457,232 estimated tokens, about 1.0 GB compressed parquet output. This is not yet merged into the stable v0.2 parquet release.
- Added `.gitignore` entries to keep large local generated candidates and logs out of git/HF commits.

## v0.2.0 (2026-06-15)

- Initial release: 11 openly-licensed sources, 2,490,773 docs, 6.22B tokens (tiktoken proxy).
- Sources: eurlex, parliamentary, wikisource, wikipedia, dziennik_ustaw, wolne_lektury, wikiquote, eltec_pol, wikivoyage, wikibooks, wikinews.
- Excluded (see README): open_subtitles_corpus, europeana_eu_pl_corpus, 1000_novels_corpus_CLARIN-PL, project_gutenberg_pl_corpus.