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| ## Version 2.18.0.0 Release Notes | ||
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| Compatible with OpenSearch 2.18.0 | ||
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| ### Features | ||
| * Add AVX512 support to k-NN for FAISS library [#2069](https://github.com/opensearch-project/k-NN/pull/2069) | ||
| ### Enhancements | ||
| * Introducing a loading layer in FAISS [#2033](https://github.com/opensearch-project/k-NN/issues/2033) | ||
| * Add short circuit if no live docs are in segments [#2059](https://github.com/opensearch-project/k-NN/pull/2059) | ||
| * Optimize reduceToTopK in ResultUtil by removing pre-filling and reducing peek calls [#2146](https://github.com/opensearch-project/k-NN/pull/2146) | ||
| * Update Default Rescore Context based on Dimension [#2149](https://github.com/opensearch-project/k-NN/pull/2149) | ||
| * KNNIterators should support with and without filters [#2155](https://github.com/opensearch-project/k-NN/pull/2155) | ||
| * Adding Support to Enable/Disble Share level Rescoring and Update Oversampling Factor[#2172](https://github.com/opensearch-project/k-NN/pull/2172) | ||
| * Add support to build vector data structures greedily and perform exact search when there are no engine files [#1942](https://github.com/opensearch-project/k-NN/issues/1942) | ||
| * Add CompressionLevel Calculation for PQ [#2200](https://github.com/opensearch-project/k-NN/pull/2200) | ||
| * Remove FSDirectory dependency from native engine constructing side and deprecated FileWatcher [#2182](https://github.com/opensearch-project/k-NN/pull/2182) | ||
| ### Bug Fixes | ||
| * Add DocValuesProducers for releasing memory when close index [#1946](https://github.com/opensearch-project/k-NN/pull/1946) | ||
| * KNN80DocValues should only be considered for BinaryDocValues fields [#2147](https://github.com/opensearch-project/k-NN/pull/2147) | ||
| * Score Fix for Binary Quantized Vector and Setting Default value in case of shard level rescoring is disabled for oversampling factor[#2183](https://github.com/opensearch-project/k-NN/pull/2183) | ||
| * Java Docs Fix For 2.x[#2190](https://github.com/opensearch-project/k-NN/pull/2190) | ||
| ### Documentation | ||
| * Fix sed command in DEVELOPER_GUIDE.md to append a new line character '\n'. [#2181](https://github.com/opensearch-project/k-NN/pull/2181) | ||
| ### Maintenance | ||
| * Remove benchmarks folder from k-NN repo [#2127](https://github.com/opensearch-project/k-NN/pull/2127) | ||
| * Fix lucene codec after lucene version bumped to 9.12. [#2195](https://github.com/opensearch-project/k-NN/pull/2195) | ||
| ### Refactoring | ||
| * Does not create additional KNNVectorValues in NativeEngines990KNNVectorWriter when quantization is not needed [#2133](https://github.com/opensearch-project/k-NN/pull/2133) | ||
| * Minor refactoring and refactored some unit test [#2167](https://github.com/opensearch-project/k-NN/pull/2167) |