Breaking Changes:
- Removed HuggingFace Hub integration (hf_hub, explorer, vix deps)
- Removed DatasetDict, IterableDataset, Features, streaming support
- Removed vision/chat/code/preference/reasoning/rubric loaders
- Versions 0.4.0 and 0.4.1 are deprecated

Retained:
- Core dataset management (GSM8K, HumanEval, MMLU loaders)
- CrucibleIR DatasetRef integration
- Evaluation metrics (exact_match, F1, BLEU, ROUGE)
- Registry, Cache, Sampler, ResultStore, Exporter

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>