v0.4.0: Export as HF `datasets.Dataset`; `unstructured` preprocessing task

✨ New features and improvements

• Support for exporting task results in datasets.Dataset format for easy distillation/model training (#63)
• Add new task: preprocessing documents with unstructured (#61)
• Introduced strict mode raising errors on unsuccessful result parsing (#57)
• Use reasoning traces/CoT for existing tasks (#59)
• Simplify serialization implementation for tasks (#61)

🔴 Bug fixes

• Fixed bugs in serialization mechanism (#61)

⚠️ Backwards incompatibilities

• tasks.parsing and tasks.chunkers have been merged into tasks.preprocessing

📖 Documentation and examples

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👥 Contributors

@rmitsch

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Full Changelog: v0.3.0...v0.4.0