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Add note clarifying Java versions for Vector index performance suggestions #1225

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Mar 25, 2025
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Add note clarifying Java versions for Vector index performance suggestions #1225

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JPryce-Aklundh Mar 25, 2025
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JPryce-Aklundh Mar 25, 2025
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Merge branch 'dev' into vector_java_clarification
JPryce-Aklundh Mar 25, 2025
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7 changes: 6 additions & 1 deletion modules/ROOT/pages/indexes/semantic-indexes/vector-indexes.adoc
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Expand Up @@ -256,7 +256,7 @@ Use xref:functions/vector.adoc[] to compute the similarity score between two spe
[[performance]]
== Performance suggestions

Vector indexes can take advantage of the incubated Java 20 Vector API for noticeable speed improvements.
Vector indexes can take advantage of the incubated Java Vector API for noticeable speed improvements.
If you are using a compatible version of Java, you can add the following setting to your link:{neo4j-docs-base-uri}/operations-manual/current/configuration/configuration-settings/#config_server.jvm.additional[configuration settings]:

.Configuration settings
Expand All @@ -265,6 +265,11 @@ If you are using a compatible version of Java, you can add the following setting
server.jvm.additional=--add-modules=jdk.incubator.vector
----

[NOTE]
While the Neo4j 5 series requires at least Java 17, _at least_ Java 20 is necessary to take advantage of this performance improvement in Neo4j 5.14-5.26.
If you are using Neo4j 2025.01 or later, Java 21 is required.
For more information about what Java versions are supported by different Neo4j versions, see the link:{neo4j-docs-base-uri}/operations-manual/current/installation/requirements/#deployment-requirements-java[Operations Manual -> System requirements -> Java].

[[show-vector-indexes]]
== Show vector indexes

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