What's Changed

• minor: Add Incremental Indexing
• minor: Added DRIFT graph reasoning query module
• minor: embeddings moved to a different workflow
• minor: Add DRIFT search cli and example notebook
• patch: Add config for incremental updates
• patch: Add embeddings to subflow.
• patch: Add naive community merge using time period
• patch: Add relationship merge
• patch: Add runtime-only storage option.
• patch: Add text units update
• patch: Allow empty workflow returns to avoid disk writing.
• patch: Apply pandas optimizations to create final entities
• patch: Calculate new inputs and deleted inputs on update
• patch: Collapse covariates flow.
• patch: Collapse create-base-entity-graph.
• patch: Collapse create-final-community-reports.
• patch: Collapse create-final-documents.
• patch: Collapse create-final-entities.
• patch: Collapse create-final-nodes.
• patch: Collapse create_base_documents.
• patch: Collapse create_base_text_units.
• patch: Collapse create_final_relationships.
• patch: Collapse entity extraction.
• patch: Collapse entity summarize.
• patch: Collapse intermediate workflow outputs.
• patch: Dependency updates
• patch: Extract DataShaper-less flows.
• patch: Fix Community ID loading for DRIFT search over existing indexes
• patch: Fix embeddings faulty assignments
• patch: Fix init defaults for vector store and drift img in docs
• patch: Fix nested json parsing
• patch: Fix some edge cases on Drift Search over small input sets
• patch: Fix var name for embedding
• patch: Merge existing and new entities, updating values accordingly
• patch: Merge text_embed into create-final-relationships subflow.
• patch: Move embedding verbs to operations.
• patch: Moving verbs around.
• patch: Optimize Create Base Documents subflow
• patch: Optimize text unit relationship count
• patch: Perf optimizations in map_query_to_entities()
• patch: Remove aggregate_df from final coomunities and final text units
• patch: Remove duplicated relationships and nodes
• patch: Remove unused column from final entities
• patch: Reorganized api,reporter,callback code into separate components. Defined debug profiles.
• patch: Small cleanup in community context history building
• patch: Transient entity graph and snapshotting.
• patch: Update Incremental Indexing to new embeddings workflow
• patch: Use mkdocs for documentation
• patch: add backwards compatibility patch to vector store.
• patch: add-autogenerated-cli-docs
• patch: fix docs image path
• patch: refactor use of vector stores and update support for managed identity
• patch: remove redundant error-handling code from global-search
• patch: reorganize cli layer

Full Changelog: https://github.com/microsoft/graphrag/compare/v0.3.6...v0.4.0