RAGStack-Lambda

# Changelog ## [2.0.0] - 2026-01-10 ### Breaking Changes - **Single Data Source Architecture**: Consolidated from two S3 data sources to one - S3 paths changed: `output/` and `images/` merged into `content/` - All content types now use the same data source with `inclusionPrefixes: ["content/"]` - Removed `TextDataSourceId` and `ImageDataSourceId` CloudFormation outputs - Removed `TEXT_DATA_SOURCE_ID` and `IMAGE_DATA_SOURCE_ID` Lambda environment variables - **Unified Metadata Format**: All content now uses `.metadata.json` files - Images switched from inline attributes (`IN_LINE_ATTRIBUTE`) to S3 files (`S3_LOCATION`) - Image metadata now stored in `content/{imageId}/caption.txt.metadata.json` ### Migration - **Migration script provided**: `scripts/migrate_v1_to_v2.py` handles S3 file copying and tracking table updates - **Reindex handles re-ingestion**: After migration, use Settings UI to trigger reindex with fresh metadata - See [docs/MIGRATION.md](docs/MIGRATION.md) for complete migration guide ### Added - **`content_type` metadata field**: All content now includes a `content_type` field for filtering - Documents: `content_type: "document"` - Images: `content_type: "image"` - Web pages: `content_type: "web_page"` - **Simplified query handlers**: Single unified query instead of dual data source queries - **Optional content_type filtering**: Query by content type using metadata filters - **Universal reindex**: Reindex now processes all content types (documents, images, scraped pages) - **Migration script**: `scripts/migrate_v1_to_v2.py` for migrating v1.x deployments ### Removed - Dual data source architecture (`output/` and `images/` prefixes) - Multi-slice data source filtering by `x-amz-bedrock-kb-data-source-id` - `IN_LINE_ATTRIBUTE` metadata type for images ### Changed - Increased default retrieval results from 5 to 10 for unified queries - Simplified MultiSliceRetriever to not require data_source_id parameter ## [1.0.0] - Previous Initial release with dual data source architecture.