v2.0.0

[2.0.0] — 2026-07-08

Modernization release. Breaking — the package is renamed and unparseable
input now raises instead of returning an empty DataFrame.

Changed

• Renamed the package: import noaa_esrl_gmd_file_reader →
  noaa_gml_file_reader, distribution noaa-gml-file-reader. NOAA renamed
  ESRL's Global Monitoring Division (GMD) to the Global Monitoring Laboratory
  (GML) in 2020.
• read_data now auto-detects the header dialect and parses both the legacy
  # number_of_header_lines: format and the current # header_lines : format,
  extracting column names correctly for each.
• Documented missing-value sentinels (-999.99, -999.999, nan) are mapped to
  NaN so numeric columns parse numeric.
• Relicensed AGPL-3.0 → MIT.
• Modern packaging: pyproject.toml (hatchling), package split into
  _reader.py, full type hints, and updated docstrings.

Added

• UnrecognizedFormatError (carries the file path and its first line), raised on
  unrecognized, malformed, truncated, or empty input.
• Offline pytest suite over committed fixtures and a GitHub Actions CI workflow
  (ruff + pytest on Python 3.10–3.13 + python -m build + twine check).

Removed

• The silent empty-DataFrame return on parse failure (v1 behavior) — it made a
  parse failure indistinguishable from an empty file, so v1 failed silently on
  every current NOAA file.

Fixed

• Current (post-2020) NOAA GML files now parse instead of returning empty.
• The inconsistent GPL/AGPL wording in the v1 module docstring (removed; the
  LICENSE file governs).