Neo4j GraphRAG Package for Python 1.19.0

Changed

Chore

• ci: download en_core_web_sm model in PR workflow by @jexp in #549

• ci: stop a half-installed venv cache from failing later runs by @williedoran-neo4j in #610

• build(compose): put the vector stores behind a profile and add healthchecks by @williedoran-neo4j in #595

• Update README to define what experimental means by @stellasia in #558

• Pin github action steps to latest release by @jonnylaw in #568

• Use uv build in publish action by @jonnylaw in #569

• Configure Renovate by @renovate[bot] in #577

• Add renovate config by @ali-sedaghatbaf in #576

• Enable automerge for Renovate updates by @ali-sedaghatbaf in #616

• Fix e2e tests by waiting for indexes to come online by @AmirLayegh in #600

Dependency updates

• Upgrade pypdf vvrsion to avoid infinite loops by @ali-sedaghatbaf in #587
• Update dependency langchain-openai to v1 [SECURITY] by @renovate[bot] in #612
• Update dependency langchain-openai to v1 [SECURITY] by @renovate[bot] in #615
• Update dependency litellm to v1.84.0 [SECURITY] by @renovate[bot] in #611
• Update dependency python-dotenv to v1.2.2 [SECURITY] by @renovate[bot] in #603
• Update dependency neo4j to >=5.28.4,<7.0.0 by @renovate[bot] in #609
• Update dependency fsspec to >=2024.12.0 by @renovate[bot] in #608

LLM

• refactor(llm): extract shared http_client sync/async split helper by @matteomedioli in #567
• feat(llm): extract BaseAnthropicLLM, add base_url, export extension points by @matteomedioli in #566
• feat(llm): extract BaseGeminiLLM, add base_url support by @matteomedioli in #571

Added

• Support Neo4j 2026 vector SEARCH with CYPHER 25 and procedure fallback by @zeljkoagic in #550
• Add image_bytes support to GeminiLLM for multimodal inputs by @AmirLayegh in #589
• feat(llm): add structured output support to AnthropicLLM by @1HazyOne707 in #551

Fixed

LLM

• fix(llm): route http_client to the matching sync/async Anthropic client by @matteomedioli in #565
• fix(llm): repair CohereLLM and MistralAILLM, and refresh retired model references by @williedoran-neo4j in #592

Schema

• fix(schema): raise a clear error for duplicate relationship types by @NathalieCharbel in #535

Documentation and examples

• fix(examples): make OpenAI examples work with gpt-5 by @williedoran-neo4j in #578
• docs(examples): document what the examples need in order to run by @williedoran-neo4j in #596
• Restore docs_title by @recrwplay in #614

Road to 2.0

• Update all DeprecationWarning for 2.0 by @stellasia in #557
• Move components out of experimental package by @stellasia in #556

New Contributors

• @jexp made their first contribution in #549
• @1HazyOne707 made their first contribution in #551
• @renovate[bot] made their first contribution in #577
• @zeljkoagic made their first contribution in #550
• @williedoran-neo4j made their first contribution in #578

Full Changelog: 1.18.0...1.19.0