Fixes

• Fixed false UTF-7 detection of SHA-1 git hashes (#324, fixing #323) — requirements files with VCS pins (e.g., +4bafdea3...) were misdetected as UTF-7, breaking tools like tox
• Fixed _SINGLE_LANG_MAP missing aliases for single-language encoding lookup (e.g., big5 → big5hkscs)
• Fixed PyPy TypeError in UTF-7 codec handling

Improvements

• Retrained bigram models — 24 previously failing test cases now pass
• Updated language equivalences for mutual intelligibility (Slovak/Czech, East Slavic + Bulgarian, Malay/Indonesian, Scandinavian languages)

New Contributors

• @rembish made their first contribution — both reporting the UTF-7 false detection issue and submitting the fix! (#323, #324)