v4.1.0

4.1.0 - 2026-01-15

Changed

• new GriddedPerm.contains_patt function checks positions first, then pattern
  and as a result can lead to huge 2x - 4x speed improvement in specification
  finding
• Migrated to modern pyproject.toml packaging with hatchling backend
• Minimum Python version is now 3.10 (dropped 3.8, 3.9 support)
• Updated GitHub Actions to use latest action versions (checkout@v4, setup-python@v5)
• Updated Black target version to Python 3.10

Removed

• Removed legacy setup.py and MANIFEST.in files