Sourced from github.com/elastic/go-elasticsearch/v9's releases.

v9.3.0

9.3.0 (2026-02-04)

⚠ BREAKING CHANGES

• Upgrade Go version from 1.23 to 1.24 (#1137)
• API: API methods and request fields that previously accepted a single string for resource identifiers (e.g., indices, names, IDs, routing, features) now require []string. Corresponding WithX helpers now accept variadic arguments (...string).
• API: All ExpandWildcards request fields were changed from string to []string, and WithExpandWildcards helpers now accept variadic arguments (...string).
• API: Routing parameters across document, search, and multi-document APIs were changed from string to []string, and related WithRouting helpers now accept variadic arguments (...string).
• API: Duration-based parameters previously expressed as string now use time.Duration (e.g., KeepAlive, Interval, BucketSpan). Call sites must pass time.Duration values.
• API: ML APIs using interface{} for start/end time parameters now require string values, removing support for arbitrary types.
• API: Several top-level API methods now require []string instead of string for path parameters that support multiple resources (e.g., indices, templates, data streams, transforms, repositories, privileges).
• API: MonitoringBulk was refactored: DocumentType support was removed, Interval is now time.Duration, and required parameters were added explicitly to the method signature.
• API: Some WithX functional options changed between single-value and variadic forms to match API behaviour. Existing option usage may require updates.
• API: Request struct fields were updated to reflect REST API semantics, including changes from string to []string and removal of deprecated fields. Direct struct initialization may require changes.

Features

• API: Introduce strong typing for duration values (3c657da)
• API: Support multi-value resource parameters (3c657da)
• API: Support multiple resources per request (3c657da)
• API: Update APIs to 9.3.0 (3c657da)
• Expose FlushedMs metric in BulkIndexer (#1191) (d67d0be)
• Typed API: Add DenseVectorF32 and DenseVectorBytes types, improving indexing performance of dense vectors by up to 3x when used instead of a float32 array (f543b82)
• Typed API: Update TypedAPI to latest elasticsearch-specification 9.3.0 (f543b82)
• Upgrade Go version from 1.23 to 1.24 (#1137) (05f15eb)

Bug Fixes

• API: Align request structs with Elasticsearch REST spec (3c657da)
• API: Align routing parameters with REST API (3c657da)
• API: Correct functional option cardinality (3c657da)
• API: Modernize MonitoringBulk API (3c657da)
• API: Normalize expand_wildcards handling (3c657da)
• API: Simplify ML time range parameters (3c657da)
• esutil: Handle error from Seek in BulkIndexer.writeBody (#1162) (ab7b3bb)
• Typed API: Marshal Additional Properties into json.RawMessage instead of any to avoid loss of precision (#1147) (e3e61d6)

v9.2.2

9.2.2 (2026-02-04)

Features

• Expose FlushedMs metric in BulkIndexer (#1190) (5e2c25a)

Bug Fixes

... (truncated)

Sourced from github.com/elastic/go-elasticsearch/v9's changelog.

9.3.0 (2026-02-04)

⚠ BREAKING CHANGES

• Upgrade Go version from 1.23 to 1.24 (#1137)
• API: API methods and request fields that previously accepted a single string for resource identifiers (e.g., indices, names, IDs, routing, features) now require []string. Corresponding WithX helpers now accept variadic arguments (...string).
• API: All ExpandWildcards request fields were changed from string to []string, and WithExpandWildcards helpers now accept variadic arguments (...string).
• API: Routing parameters across document, search, and multi-document APIs were changed from string to []string, and related WithRouting helpers now accept variadic arguments (...string).
• API: Duration-based parameters previously expressed as string now use time.Duration (e.g., KeepAlive, Interval, BucketSpan). Call sites must pass time.Duration values.
• API: ML APIs using interface{} for start/end time parameters now require string values, removing support for arbitrary types.
• API: Several top-level API methods now require []string instead of string for path parameters that support multiple resources (e.g., indices, templates, data streams, transforms, repositories, privileges).
• API: MonitoringBulk was refactored: DocumentType support was removed, Interval is now time.Duration, and required parameters were added explicitly to the method signature.
• API: Some WithX functional options changed between single-value and variadic forms to match API behaviour. Existing option usage may require updates.
• API: Request struct fields were updated to reflect REST API semantics, including changes from string to []string and removal of deprecated fields. Direct struct initialization may require changes.

Features

• API: Introduce strong typing for duration values (3c657da)
• API: Support multi-value resource parameters (3c657da)
• API: Support multiple resources per request (3c657da)
• API: Update APIs to 9.3.0 (3c657da)
• Expose FlushedMs metric in BulkIndexer (#1191) (d67d0be)
• Typed API: Add DenseVectorF32 and DenseVectorBytes types, improving indexing performance of dense vectors by up to 3x when used instead of a float32 array (f543b82)
• Typed API: Update TypedAPI to latest elasticsearch-specification 9.3.0 (f543b82)
• Upgrade Go version from 1.23 to 1.24 (#1137) (05f15eb)

Bug Fixes

• API: Align request structs with Elasticsearch REST spec (3c657da)
• API: Align routing parameters with REST API (3c657da)
• API: Correct functional option cardinality (3c657da)
• API: Modernize MonitoringBulk API (3c657da)
• API: Normalize expand_wildcards handling (3c657da)
• API: Simplify ML time range parameters (3c657da)
• esutil: Handle error from Seek in BulkIndexer.writeBody (#1162) (ab7b3bb)
• Typed API: Marshal Additional Properties into json.RawMessage instead of any to avoid loss of precision (#1147) (e3e61d6)

9.2.2 (2026-02-04)

Features

• Expose FlushedMs metric in BulkIndexer (#1190) (5e2c25a)

Bug Fixes

• esutil: Handle error from Seek in BulkIndexer.writeBody (#1161) (5394405)

... (truncated)

• ca214d3 chore(9.3): release 9.3.0 (#1123)
• 1add806 chore(9.3): update changelog (#1211)
• 42e1b10 test: add base64 bulk integration test (#1194)
• d67d0be feat: Expose FlushedMs metric in BulkIndexer (#1191)
• 865338f docs: Fix typo in README (#1187)
• afc2619 ci: always update release please (#1180) (#1184)
• c0886c8 docs: update workflow badge links in README.md to reflect new CI configuratio...
• ab7b3bb fix(esutil): handle error from Seek in BulkIndexer.writeBody (#1162)
• 7af070a ci: enhance apidiff workflow to read version from base branch manifest (#1165...
• 710635b docs: add base64 example for indexing dense vectors with typed Bulk API (#1149)
• Additional commits viewable in compare view

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