Txtai

**This release adds Postgres integration for all components, LLM Chat Messages and vectorization with llama.cpp/LiteLLM**

See below for full details on the new features, improvements and bug fixes.

New Features
--------------------------
- Add pgvector ANN backend (698)
- Add RDBMS Graph (699)
- Add notebook covering txtai integration with Postgres (701)
- Add Postgres Full Text Scoring (713)
- Add support for chat messages in LLM pipeline (718)
- Add support for LiteLLM vector backend (725)
- Add support for llama.cpp vector backend (726)
- Add notebook showing to run RAG with llama.cpp and LiteLLM (728)

Improvements
--------------------------
- Split similarity extras install (696)
- Ensure config.path = None and config.path missing mean the same thing (704)
- Add close methods to ANN and Graph (711)
- Update finalizers to check object attributes haven't already been cleared (722)
- Update LLM pipeline to support GPU parameter with llama.cpp backend (724)
- Refactor vector module to support additional backends (727)

Bug Fixes
--------------------------
- Fix issue with database.search and empty scores (712)
- Update HFOnnx pipeline to default to opset 14 (719)
- Fix incompatibility with ONNX models and transformers>=4.41.0 (720)
- Fix incompatibility between latest skl2onnx and txtai (729)

**This release adds dynamic embeddings vector support along with semantic graph and RAG improvements**

See below for full details on the new features, improvements and bug fixes.

New Features
--------------------------
- Add support for dynamic vector dimensions (674)
- Add batch node and edge creation for graphs (693)
- Add notebook on Retrieval Augmented and Guided Generation (694)

Improvements
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- Pass options to underlying vector models (675)
- Move vector model caching from Embeddings to Vectors (678)
- Add indexids only search (691)
- Create temporary tables once per database session (692)

Bug Fixes
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- Fix token storage auth error (676)
- TypeError: 'NoneType' object is not iterable (683)
- Fix issue with hardcoded autoawq version in example notebooks (686)
- API deps missing Pillow (690)

Bump version (29)

🎉 We're excited to announce the release of txtai 7.0 🎉

_If you like txtai, please remember to give it a ⭐!_

7.0 introduces the next generation of the semantic graph. This release adds support for graph search, advanced graph traversal and graph RAG. It also adds binary support to the API, index format improvements and training LoRA/QLoRA models. See below for more.

New Features
--------------------------
- Add indexing of embeddings graph relationships (525)
- Expand the graph capabilities to enable advanced graph traversal (534, 540)
- Add feature to return embeddings search results as graph (644)
- Add RAG with Semantic Graphs notebook (645)
- Graph search results via API (670)
- Add knowledge graphs via LLM-driven entity extraction notebook (671)
- Add advanced RAG with graph path traversal notebook (672)
- Add support for binary content via API (630)
- Add MessagePack encoding to API (658)
- Add documentation for API security (627)
- Add notebook that covers API authorization and authentication (628)
- Add top level import for LLM (648)
- Add external vectorization notebook (651)
- Add configuration override to embeddings.load (657)
- Add what's new in txtai 7.0 notebook (673)

Improvements
--------------------------
- Benchmark script improvements (641)
- ImportError: Textractor pipeline is not available - install "pipeline" extra to enable (646)
- Resolve external vector transform functions (650)
- Change default embeddings config format to json (652)
- Store index ids outside of configuration when content is disabled (653)
- Update HFTrainer to add PEFT support (654)
- Update 40_Text_to_Speech_Generation.ipynb (666)- thank you babinux
- Adding training dependencies to notebooks (669)

Bug Fixes
--------------------------
- Fix various issues with subindex reloading (618)
- Fix benchmarks script (636)
- Set tokenizer.pad_token when empty for all training paths (649)
- Fix documentation code filters (656)
- Issues with NetworkX when using graph subindex (664)

A big thank you goes to Jordan Matelsky (j6k4m8) for his help in integrating the [GrandCypher](https://github.com/aplbrain/grand-cypher) library into txtai!

**This release adds new LLM inference methods, API Authorization and RAG improvements**

📄 New LLM methods. llama.cpp and LiteLLM support added. LLM pipeline now supports Hugging Face models, GGUF files and LLM API inference all with one line of code.

🔒 API Authorization. Adds support for API keys and pluggable authentication methods when running through txtai API.

See below for full details on the new features, improvements and bug fixes.

New Features
--------------------------
- Add llama.cpp support to LLM (611)
- Integrate with Litellm (554)
- Add API route dependencies (623)
- Add API Authorization (263, 624)
- Add notebook on how to build RAG pipelines (605)
- Add notebook showing how to use llama.cpp, LiteLLM and custom generation models (615)

Improvements
--------------------------
- Enhance textractor to better support RAG use cases (603)
- Update text extraction notebook (604)
- Extractor (RAG) pipeline improvements (613)
- Refactor LLM pipeline to support multiple framework methods (614)
- Change API startup event to lifespan event (625)

Bug Fixes
--------------------------
- Handle None input properly in Tokenizer (607)
- Issue with subdirectories and ZIP compression (609)
- Error in 52_Build_RAG_pipelines_with_txtai.ipynb (620)
- Add missing skl2onnx dependency (622)

**This release adds binary quantization, bind parameters for multimedia SQL queries and performance improvements**

⚡ Scalar quantization. Supports 1 bit (binary) through 8 bit quantization. Can dramatically reduce vector storage requirements.

🚀 SQL bind parameters. Enables searching binary content with SQL statements, along with being a standard best practice.

See below for full details on the new features, improvements and bug fixes.

New Features
--------------------------
- Add scalar quantization support to vectors (583)
- Feature request: Bind variable support when searching with SQL using Content=True mode (564)
- Add cls pooling option (565)
- Add prefix parameter for object storage (568)
- Add parameter to RetrieveTask to disable directory flattening (569)
- Add support for binary indexes to Faiss ANN (585)
- Add support for scalar data to torch and numpy ANN backends (587)
- Add quantization notebook (588)
- Add API extensions notebook (591)
- Add env variable to disable macOS MPS devices (592)

Improvements
--------------------------
- Allow searching for images (404)
- Update LLM pipeline to support template parameter (566)
- Update recommended models (573)
- Is it possible to add chat history to extractor workflow? (575)
- Extractor pipeline improvements (577)
- Update documentation (582)
- Move vector normalization to vectors module (584)
- Update benchmarks to read configuration (586)
- Update torch version in Dockerfile (589)
- Update Faiss ANN to support IVF strings without number of cells (594)
- Update documentation to note SQL bind parameters (596)

Bug Fixes
--------------------------
- Inconsistency in Embeddings behavior in Applications (571)