Match for OpenSearch

Includes Match 7.51.0.c79.0: Refer to the Match release notes for a full description of new features.

Name frequency: We added an endpoint rni_plugin/name_frequency to return the frequency of a name in a language. This can help determine the correct window size for common names. This beta feature is subject to change. (RLPNC-8329)

Refresh supported: Indexing and deletion dynamic configuration endpoints (including the _create endpoints for token overrides and stop words) now support the corresponding Elasticsearch refresh API for those request types (RLPNC-8347).

Minimum Linux toolchain: The minimum supported Linux tool chain for this release has changed. Match for Elasticsearch 8.4.1.x requires a minimum glibc version of 2.26 and a minimum gcc version of 7.3. The corresponding BT_BUILD values are aarch64-glibc226-gcc73 and amd64-glibc226-gcc73. We recommend using a more recent tool chain. (RLPNC-8406, RLPNC-8284)

The provided TensorFlow libraries are not supported on the arm Linux platforms with glibc226 and gcc73. To use the TensorFlow libraries on this release, you must generate your own version of the libraries.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes Match 7.50.0.c78.0. Refer to the Match release notes for a full description of 7.50.0.c78.0 features.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes Match 7.49.0.c77.0. Refer to the Match release notes for a full description of new features.

Supports OpenSearch 2.19.0

Endpoint change: The /{index-name}/rni_plugin/_get_settings and /{index-name}/rni_plugin/_get_version endpoints have been replaced with /rni_plugin/_get_settings and /rni_plugin/_get_version, respectively. The old endpoints have been deprecated and will be removed March 2026. (RLPNC-7911)

New parameter: We've added a parameter, maxExpansions to control the number of phonetically similar terms considered during the first-pass fuzzy matching. Increasing this parameter can improve first-pass results, ensuring that the correct name will be sent to the second pass, but may impact performance. (RLPNC-7967)

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.48.0.v76.0. Refer to the RNI-RNT release notes for a full description of new features.

New endpoint: We added a new endpoint, /rni_plugin/_record_match, to provide pairwise record matching functionality. See the RNI-ES User Guide for more information. (RLPNC-7805)

New name: The plugin has been renamed to Babel Street Match for OpenSearch. The new file structure will now be /plugins/babel-street-match/bt_root. (RLPNC-78668)

We fixed a bug where a date matching request immediately upon plugin startup could cause a crash (RLPNC-7875)

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.47.0.c75.0. Refer to the RNI-RNT release notes for a full description of new features.

Supports OpenSearch 2.17.0

Katakana-Latin name matching with the enableSeq2SeqTokenScorer parameter enabled has been restored.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.48.0.v76.0. Refer to the RNI-RNT release notes for a full description of new features.

New name: The plugin has been renamed to Babel Street Match for OpenSearch. The new file structure will now be /plugins/babel-street-match/bt_root. (RLPNC-78668)

We fixed a bug where a date matching request immediately upon plugin startup could cause a crash (RLPNC-7875)

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.47.0.c75.0. Refer to the RNI-RNT release notes for a full description of new features.

Supports OpenSearch 2.15.0

Katakana-Latin name matching with the enableSeq2SeqTokenScorer parameter enabled has been restored.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.47.0.c75.0. Refer to the RNI-RNT release notes for a full description of new features.

Katakana-Latin name matching with the enableSeq2SeqTokenScorer parameter enabled has been restored.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.46.0.c74.0. Refer to the RNI-RNT release notes for a full description of new features.

Added gender as a name property: You can now specify an explicit gender value when indexing, searching, or querying a name. Valid values are female, male, and nonbinary, (RLPNC-7445)

Change to licensing when an overlay directory is specified: The license must be in the BT_ROOT directory, even if an overlay root is set. (RLPNC-7599).

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.45.0.c73.0. Refer to the RNI-RNT release notes for a full description of new features.

An overlay root directory path can now be specified as a relative path to the RNI plugin installation directory. To do so, use the new bt.overlay.relative.root system property when starting Opensearch. (RLPNC-7377)

Fixed a bug where stop word and override queries had inconsistent behavior. Now, for both stop words and overrides, queries with an entity type will return entries with that entity type and with no entity type; queries without an entity type will only return entries with no entity type. (RLPNC-7407)

Fixed a bug where the pairwise match endpoint returns an empty response when the score is 0. Now the score is returned. (RLPNC-7213)

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Includes RNI-RNT 7.44.0.c72.0. Refer to the RNI-RNT release notes for a full description of new features.

Supports OpenSearch 2.11.1

Overlay directory: Added support for specifying an overlay root directory location. This allows you to store the data components (models, parameters, config files, etc.) in a location other than the root directory within the plugin itself. To utilize this feature, specify the overlay location with the bt.overlay.root system property when starting the plugin. (RLPNC-7240)

Control response format: The pairwise match endpoint now supports a new URL parameter, responseFormat, to control the format of the match response. If the parameter is unset or set to its default value, explainInfo, the response format of releases containing the RNI-RNT 7.43.0.c71.0 SDK will be used. This version has improved explanations for pairwise matches. If the parameter is set to legacyExplainInfo, the older response format is used. (RLPNC-7153, RLPNC-7255)

Dynamic configuration improvements: The type field can now be specified when adding token overrides using the dynamic configuration endpoints. (RLPNC-7256)

Fixed a bug where the score field could not be omitted from dynamic token override requests. (RLPNC-7256)

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

Includes RNI-RNT 7.47.0.c75.0. Refer to the RNI-RNT release notes for a full description of new features.

Supports OpenSearch 2.11.0

Katakana-Latin name matching with the enableSeq2SeqTokenScorer parameter enabled has been restored.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.

When using the parameter filter_out_scores_below, the filter will always return at least one document, even if the highest scoring document is below the filter threshold value.

Initial release of RNI-OS providing support for OpenSearch.

Supports OpenSearch 2.7.0.

The doc_score, name_score and date_score functions are not currently supported in percolator queries.