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@github-actions github-actions released this 17 Sep 22:05
· 445 commits to main since this release
2.17.0.0
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Version 2.17.0.0 Release Notes

Compatible with OpenSearch 2.17.0

Features

  • Integrate Lucene Vector field with native engines to use KNNVectorFormat during segment creation #1945
  • k-NN query rescore support for native engines #1984
  • Add support for byte vector with Faiss Engine HNSW algorithm #1823
  • Add support for byte vector with Faiss Engine IVF algorithm #2002
  • Add mode/compression configuration support for disk-based vector search #2034
  • Add spaceType as a top level optional parameter while creating vector field. #2044

Enhancements

  • Adds iterative graph build capability into a faiss index to improve the memory footprint during indexing and Integrates KNNVectorsFormat for native engines#1950
  • Add model version to model metadata and change model metadata reads to be from cluster metadata #2005

Bug Fixes

  • Corrected search logic for scenario with non-existent fields in filter #1874
  • Add script_fields context to KNNAllowlist [#1917] (#1917)
  • Fix graph merge stats size calculation #1844
  • Disallow a vector field to have an invalid character for a physical file name. #1936
  • Fix memory overflow caused by cache behavior #2015
  • Use correct type for binary vector in ivf training #2086
  • Switch MINGW32 to MINGW64 #2090

Infrastructure

  • Parallelize make to reduce build time [#2006] (#2006)

Maintenance

  • Fix a flaky unit test:testMultiFieldsKnnIndex, which was failing due to inconsistent merge behaviors #1924

Refactoring

  • Introduce KNNVectorValues interface to iterate on different types of Vector values during indexing and search #1897
  • Integrate KNNVectorValues with vector ANN Search flow #1952
  • Clean up parsing for query #1824
  • Refactor engine package structure #1913
  • Refactor method structure and definitions #1920
  • Refactor KNNVectorFieldType from KNNVectorFieldMapper to a separate class for better readability. #1931
  • Generalize lib interface to return context objects #1925
  • Restructure mappers to better handle null cases and avoid branching in parsing #1939
  • Added Quantization Framework and implemented 1Bit and multibit quantizer#1889
  • Encapsulate dimension, vector data type validation/processing inside Library #1957
  • Add quantization state cache #1960
  • Add quantization state reader and writer #1997
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