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6da08c48be
* Update release notes to include 8.7.0 Release notes and migration guide from 8.7.0 release ported into main as well as re-generating 8.8.0 release notes. This latter step will be overwritten anyway, multiple times, by more up-to-date regeneration of the 8.8.0 release notes during the release process. * Remove coming 8.7.0 line * Update docs/reference/migration/migrate_8_7.asciidoc Co-authored-by: Abdon Pijpelink <abdon.pijpelink@elastic.co> * Make same change to 8.8 --------- Co-authored-by: Abdon Pijpelink <abdon.pijpelink@elastic.co>
48 lines
1.6 KiB
Text
48 lines
1.6 KiB
Text
[[release-highlights]]
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== What's new in {minor-version}
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coming::[{minor-version}]
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Here are the highlights of what's new and improved in {es} {minor-version}!
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ifeval::[\{release-state}\"!=\"unreleased\"]
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For detailed information about this release, see the <<es-release-notes>> and
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<<breaking-changes>>.
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endif::[]
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// Add previous release to the list
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Other versions:
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{ref-bare}/8.7/release-highlights.html[8.7]
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| {ref-bare}/8.6/release-highlights.html[8.6]
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| {ref-bare}/8.5/release-highlights.html[8.5]
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| {ref-bare}/8.4/release-highlights.html[8.4]
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| {ref-bare}/8.3/release-highlights.html[8.3]
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| {ref-bare}/8.2/release-highlights.html[8.2]
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| {ref-bare}/8.1/release-highlights.html[8.1]
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| {ref-bare}/8.0/release-highlights.html[8.0]
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// tag::notable-highlights[]
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[discrete]
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[[add_new_similarity_field_to_knn_clause_in_search]]
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=== Add new `similarity` field to `knn` clause in `_search`
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This adds a new parameter to `knn` that allows filtering nearest
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neighbor results that are outside a given similarity.
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`num_candidates` and `k` are still required as this controls the
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nearest-neighbor vector search accuracy and exploration. For each shard
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the query will search `num_candidates` and only keep those that are
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within the provided `similarity` boundary, and then finally reduce to
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only the global top `k` as normal.
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For example, when using the `l2_norm` indexed similarity value, this
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could be considered a `radius` post-filter on `knn`.
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relates to: https://github.com/elastic/elasticsearch/issues/84929 &&
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https://github.com/elastic/elasticsearch/pull/93574
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{es-pull}94828[#94828]
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// end::notable-highlights[]
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