8174ba5207
* Changelog for 9.0.0 * Update title for release notes page * Grammar tweak * Adjustment to formatting
40 lines
2.2 KiB
Markdown
40 lines
2.2 KiB
Markdown
---
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navigation_title: "JavaScript client release notes"
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mapped_pages:
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- https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/changelog-client.html
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---
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# Elasticsearch JavaScript Client release notes [elasticsearch-javascript-client-release-notes]
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Review the changes, fixes, and more in each version of Elasticsearch JavaScript Client.
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To check for security updates, go to [Security announcements for the Elastic stack](https://discuss.elastic.co/c/announcements/security-announcements/31).
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% Release notes include only features, enhancements, and fixes. Add breaking changes, deprecations, and known issues to the applicable release notes sections.
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% ## version.next [elasticsearch-javascript-client-next-release-notes]
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% ### Features and enhancements [elasticsearch-javascript-client-next-features-enhancements]
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% \*
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% ### Fixes [elasticsearch-javascript-client-next-fixes]
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% \*
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## 9.0.0 [elasticsearch-javascript-client-900-release-notes]
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### Features and enhancements [elasticsearch-javascript-client-900-features-enhancements]
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- **Compatibility with Elasticsearch 9.0:** All changes and additions to Elasticsearch APIs for its 9.0 release are reflected in this release.
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- **Serverless client merged in:** the `@elastic/elasticsearch-serverless` client is being deprecated, and its functionality has been merged back into this client. This should have zero impact on the way the client works by default, except that a new `serverMode` option has been added. When it's explicitly set to `"serverless"` by a user, a few default settings and behaviors are changed:
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- turns off sniffing and ignores any sniffing-related options
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- ignores all nodes passed in config except the first one, and ignores any node filtering and selecting options
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- enables compression and `TLSv1_2_method` (same as when configured for Elastic Cloud)
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- adds an `elastic-api-version` HTTP header to all requests
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- uses `CloudConnectionPool` by default instead of `WeightedConnectionPool`
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- turns off vendored `content-type` and `accept` headers in favor or standard MIME types
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Docstrings for types that differ between stack and serverless have also been updated to indicate when that is the case.
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### Fixes [elasticsearch-javascript-client-900-fixes]
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