# QR Code Export Readability Benchmark release history

This changelog records each public dataset release. Published release files are
not silently replaced. A correction that changes data, fixtures, methods, or
results receives a new release identifier, while the earlier release remains
available under its existing identifier.

## 2026-07-22-v1

- Published: 2026-07-22
- Status: first public release
- Evidence: 21 generated export fixtures
- Results: 19 exact decodes from 21 fixtures
- Clean baselines: 4 of 4 decoded exactly
- Representations: JSON, CSV, fixture archive, release archive, checksum manifests, reproducer, BibTeX, RIS, CFF, and methodology
- Dataset: https://qrcodecrafter.com/data/qr-readability-lab-v1.json
- Methodology: https://qrcodecrafter.com/data/qr-readability-lab-methodology-v1.md
- Citation page: https://qrcodecrafter.com/qr-code-readability-lab

The release is a deterministic software-fixture benchmark using one decoder
and rendering pipeline. It is not ISO/IEC 15415 verification, device or printer
certification, a security assessment, or a prediction for every production
environment.

## Browser-native companion check

- Published: 2026-07-26
- Status: additive browser tooling; not a new dataset release
- Source: the unchanged 21 fixture bytes from `2026-07-22-v1`
- Manifest: https://qrcodecrafter.com/data/qr-readability-lab-v1-browser-manifest.json

The focused Readability Lab page can now run the immutable fixtures through a
visitor's native `BarcodeDetector` after an explicit button press. Each file is
checked against its published SHA-256 value before decoding. The downloadable
local receipt records hashes, detector formats, and outcomes but no decoded
payload values or user-agent string.

Browser results depend on the browser and operating system. They do not replace
the published jsQR result, alter the immutable release, or provide print,
device, ISO, accessibility, malware, or security certification.

## Corrections

Report a factual or reproducibility issue to contact@qrcodecrafter.com with the
release identifier, fixture identifier, decoder and software versions,
observed result, and enough detail to reproduce the issue.