Version (1.13.0.0)

Compatible with Elasticsearch 7.10.2

Features

• Support k-NN similarity functions in painless scripting (#281)
• Add support for L1 distance in AKNN, custom scoring and painless scripting (#310)

Enhancements

• Upgrade nmslib to 2.0.11 (#302)
• Upgrade commons-beanutils (#297)

Bug Fixes

• Fix find_path bug in CMakeLists (#280)
• Add builder constructor that takes algo params (#289)

Infrastructure

• Add arm64 support and correct the naming convention to the new standards (#299)
• Run KNN integ tests with security plugin enabled (#304)
• Update artifact naming (#309)
• Change CD workflow to use new staging bucket for artifacts (#301)

Documentation

• Add copyright header (#307)

Maintenance

• Upgrade odfe version to 1.13.0 (#312)

Version (1.12.0.0)

Compatible with Elasticsearch (7.10.0).

Features

• Support for hamming bit distance in custom scoring (#267)

Maintenance

• k-NN plugin support for Elasticsearch version 7.10.0 (#271)
• Bump odfe version to 1.12 (#273)

Version (1.11.0.0)

Compatible with Elasticsearch (7.9.1).

• 1.11 release notes (#253)

Features

• Pre filter support through custom scoring (#196)

Enhancements

• Add existsQuery method implementation to KNNVectorFieldType (#228)
• Change "space" parameter to "space_type" for custom scoring (#232)
• change space -> space_type (#234)
• Add stats for custom scoring feature (#233)

Bug Fixes

• KNN score fix for non knn documents (#231)
• Fix script statistics flaky test case (#235)
• Refactor KNNVectorFieldMapper (#240)
• Fix PostingsFormat in KNN Codec (#236)
• Change path warmup API uses to load graphs into cache (#256)

Infrastructure

• Update ODFE version to 1.11.0.0 (#254)

Version 1.10.1.0

Version 1.10.1.0 Release Notes

Compatible with Elasticsearch 7.9.1

Features

• Add Warmup API to load indices graphs into memory (#162)

Enhancements

• Upgrade nmslib to v2.0.6 (#160)

Bug Fixes

• Update guava version to 29.0 (#182)
• Add default index settings when parsing index (#205)
• NPE in force merge when non knn doc gets updated to knn doc across segments (#212)
• Fix casting issue with cache expiration (#215)

Infrastructure

• Reset state for uTs so tests run independently (#159)
• Pass -march=x86-64 to build JNI library (#164)
• Fix versioning for lib artifacts (#166)
• Add release notes automation (#168)
• Add Github action to build library artifacts (#170)
• Flaky rest test case fix (#183)
• Add code coverage widget and badges (#191)
• Add Codecov configuration to set a coverage threshold to pass the check on a commit (#192)
• Add AWS CLI in order to ship library artifacts from container (#194)
• Remove sudo from "./aws install" in library build action (#202)
• Fix download link in package description (#214)

Documentation

• Performance tuning/Recommendations (#177)
• Fix cluster setting example in README.md (#186)
• Add scoring documentation (#193)
• Add 1.10.0.0 release notes (#201)

Maintenance

• ODFE 1.10 support for k-NN plugin (#199)
• Upgrade Elasticsearch to 7.9.1 and ODFE to 1.10.1 (#217)

Refactoring

• Update default variable settings name (#209)

Version 1.9.0.0

Version 1.9.0.0 (Version compatible with elasticsearch 7.8.0)

Features

• Feature #147: ODFE 1.9 support for Elasticsearch version 7.8.0 (issue #146).

Enhancements

• Enhancement #149: Remove/depricate shared library in buildSrc. (issue #148)
• Enhancement #141: Modify artifact release Github action. (issue #140)
• Enhancement #132: Add github action to build library artifacts. (issue #122)
• Enhancement #126: Ability to dynamically update efSearch setting. (issue #116)
• Enhancement #125: Fix test structure. (issue #124)
• Enhancement #123: Build separate artifacts for library using CPack. (issue #122)

Bug Fixes

• Bugfix #155: Bad recall from Lucene upgrade 8.5.1. (issue #154)
• Bugfix #143: Add recursive option to zip. (issue #140)
• Bugfix #138: CMake fails to use c++11 CMake 2.8. (issue #137)
• Bugfix #134: Fix Jacoco coverage issue introduced in odfe 1.8. (issue #127)
• Bugfix #130: Fixes parent directory in makeJniLib gradle task. (issue #137)
• Bugfix #125: Flaky test cases caused by Counter Enum. (issue #124)

Version 1.8.0

Version 1.8.0 (Version compatible with elasticsearch 7.7.0)

Features

• Feature #115: ODFE 1.8 support for Elasticsearch version 7.7.0 (issue #113).

Enhancements

• Enhancement #108: Block knn index writes if the Circuit breaker triggers. (issue #96)

Bug Fixes

• None

Version 1.7.0

Version 1.7.0 (Version compatible with elasticsearch 7.6.1)

Features

• Feature #90: Support cosine similarity (issue #28). Note this feature is experimental

Enhancements

• Enhancement #89: Add stats to track the number of requests and errors for KNN query and index operations. (issue #88)
• Enhancement #92: Switched the default value of the circuit breaker from 60% to 50%. (issue #82)
• Enhancement #73: Create Github action that automatically runs integration tests against docker image whenever code is checked into master or opendistro branch. (issue #74)

Bug Fixes

• Bugfix #100: Added validation in VectorFieldMapper to check for vector values of NaN and throwing an Exception if so. (issue #99)
• Bugfix #78: Fix debugging integration tests (issue #77)

Version 1.6.0.0

Features

• Feature #76: Elasticsearch 7.6.1 compatibility (issue #71)
• Feature #73: Add Github Actions so that changes are automatically tested and artifacts are uploaded to S3 (issue #74)

Enhancements

• Enhancement #61: Convert integration tests from ESIntegTestCase to ESRestTestCase, so that they can be run on a remote cluster (issue #60)
• Enhancement #54: Add check in gradle build for license headers (issue #7)
• Enhancement #52: Lazily load efSearch parameter (issue #51)

Bug Fixes

• Bugfix #66: Flaky failure in KNN80HnswIndexTests testFooter (issue #65)
• Bugfix #63: Circuit Breaker fails to turn off (issue #62)
• Bugfix #59: Gradle build failure on Mac due to library error (issue #58)
• Bugfix #53: AccessControlException when HNSW library is loaded (issue #49)
• Bugfix #47: Stats API failure in Transport Layer (issue #45)

Version 1.4.0.0

Features

Elasticsearch Compatibility

• Feature #11 : Elasticsearch 7.4.2 compatibility

Documentation

• Feature ( #40 , #37 ). Documentation on knn index creation, settings and stats

Enhancements

• KNN Codec Backward Compatibility support #20

Bug Fixes

• Avoid recreating space for each query [#29 ]
• Fix a leak where FileWatchers are added but never removed [#36 ]
• JNI clean up and race conditions [#25 ]
• native memory leak in saveIndex and JVM leak [#14 ] [#15 ]

Note

For configuring native library for plugin installations from Archive, please refer to ReadME

Version 1.3.0.0

Notable changes

• opendistro1.3 for KNN for ES 7.3.2
• Performance improvement and bug fixes
  ** JNI Memory leak fixes
  ** Cache time out fix
  ** Doc values memory fix
  ** Other minor bugs
  ** Updated ReadMe
• fixed memory leak in saveIndex
• fixed issue jvm heap leak in JNI

Note:- For configuring native library for plugin installations from Archive, please refer to ReadME