changelog

What changed

Dated, from the repository. Breaking changes are marked. ← API reference

1. v2.1.029 Oct 2026

   PP-OCRv6 engine, PDF text layer, quality signals

   • PaddleOCR 3.x with PP-OCRv6 medium detector and recognizer, pinned by name. Word F1 0.969 on the benchmark set.
   • source field on every extract response: text, ocr or hybrid. A sound PDF text layer is used verbatim.
   • quality block: blur, long_side_px, low_confidence_ratio and warnings[] so clients can ask for a rescan.
2. v2.008 Jul 2026

   Platform conformance

   • Idempotency-Key with a 24 h replay window; 409 idempotency_conflict on a different payload.
   • Schema managed by alembic; standard src/ layout and uv lockfile.
3. v1.825 Jun 2026

   Error envelope and dev environment

   • One error envelope everywhere: { error, message }, and X-Request-ID on every response.
   • Isolated dev environment on the GPU box: PRs deploy to api-dev.optii.eu, tags to prod.
4. v1.626 Apr 2026

   chut.app platform

   • Gateway HMAC trust path and the OpenAPI tool manifest: optii.ocr_extract, optii.ocr_classify, optii.health_probe.
5. v1.509 Apr 2026

   Classifier v2

   • XLM-RoBERTa base, 32 Belgian document types, confident flag and top-k predictions on POST /ocr/classify.
6. v1.405 Apr 2026

   Structured extraction

   • ?structured=true: Belgian invoice fields with VAT, IBAN, structured communication and totals checks.