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> 🤝 **We welcome any kinds of contributing!** Vote on roadmap items or propose new ones at [`Roadmap`](https://github.com/HKUDS/DeepTutor/issues/498), and see our [Contributing Guide](CONTRIBUTING.md) for branching strategy, coding standards, and how to get started.
### 📦 Releases
> **[2026.7.9]** [v1.5.1](https://github.com/HKUDS/DeepTutor/releases/tag/v1.5.1) — Remove a single failed document from a knowledge base — even one stuck in an **error** state — instead of deleting and rebuilding the whole base.
> **[2026.7.4]** [v1.5.0](https://github.com/HKUDS/DeepTutor/releases/tag/v1.5.0) — LlamaIndex ingestion now honors your **Document Parsing** engine with multimodal image extraction, Partner & Soul ids stay URL-safe for non-Latin names, and optional RAG extras install cleanly on Python 3.14+.