Polishing.

Signed-off-by: Peter-Josef Meisch <pj.meisch@sothawo.com>

.gitignore

@@ -33,3 +33,4 @@ node
 package-lock.json
 
 .mvn/.develocity
+/src/test/resources/testcontainers-local.properties

.mvn/extensions.xml

@@ -3,6 +3,6 @@
 	<extension>
 		<groupId>io.spring.develocity.conventions</groupId>
 		<artifactId>develocity-conventions-maven-extension</artifactId>
-		<version>0.0.19</version>
+		<version>0.0.22</version>
 	</extension>
 </extensions>

.mvn/jvm.config

@@ -0,0 +1,14 @@
+--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED
+--add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED
+--add-opens jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED
+--add-opens jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED
+--add-opens=java.base/java.util=ALL-UNNAMED
+--add-opens=java.base/java.lang.reflect=ALL-UNNAMED
+--add-opens=java.base/java.text=ALL-UNNAMED
+--add-opens=java.desktop/java.awt.font=ALL-UNNAMED

.mvn/wrapper/maven-wrapper.properties

@@ -1,3 +1,3 @@
-#Thu Nov 07 09:49:32 CET 2024
+#Thu Nov 07 09:47:28 CET 2024
 wrapperUrl=https\://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar
 distributionUrl=https\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip

Jenkinsfile

@@ -9,7 +9,7 @@ pipeline {
 
 	triggers {
 		pollSCM 'H/10 * * * *'
-		upstream(upstreamProjects: "spring-data-commons/3.3.x", threshold: hudson.model.Result.SUCCESS)
+		upstream(upstreamProjects: "spring-data-commons/main", threshold: hudson.model.Result.SUCCESS)
 	}
 
 	options {

README.adoc

@@ -62,7 +62,7 @@ public class MyService {
 
 === Using the RestClient
 
-Please check the [official documentation](https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/#elasticsearch.clients.configuration).
+Please check the https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/#elasticsearch.clients.configuration[official documentation].
 
 === Maven configuration
 
@@ -168,7 +168,7 @@ Building the documentation builds also the project without running tests.
  $ ./mvnw clean install -Pantora
 ----
 
-The generated documentation is available from `target/antora/site/index.html`.
+The generated documentation is available from `target/site/index.html`.
 
 == Examples
 

ci/pipeline.properties

@@ -1,24 +1,20 @@
 # Java versions
-java.main.tag=17.0.13_11-jdk-focal
-java.next.tag=22.0.2_9-jdk-jammy
+java.main.tag=24.0.1_9-jdk-noble
+java.next.tag=24.0.1_9-jdk-noble
 
 # Docker container images - standard
 docker.java.main.image=library/eclipse-temurin:${java.main.tag}
 docker.java.next.image=library/eclipse-temurin:${java.next.tag}
 
 # Supported versions of MongoDB
-docker.mongodb.4.4.version=4.4.25
-docker.mongodb.5.0.version=5.0.21
-docker.mongodb.6.0.version=6.0.10
-docker.mongodb.7.0.version=7.0.2
+docker.mongodb.6.0.version=6.0.23
+docker.mongodb.7.0.version=7.0.20
+docker.mongodb.8.0.version=8.0.9
 
 # Supported versions of Redis
 docker.redis.6.version=6.2.13
 docker.redis.7.version=7.2.4
 
-# Supported versions of Cassandra
-docker.cassandra.3.version=3.11.16
-
 # Docker environment settings
 docker.java.inside.basic=-v $HOME:/tmp/jenkins-home
 docker.java.inside.docker=-u root -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker -v $HOME:/tmp/jenkins-home

pom.xml

@@ -5,12 +5,12 @@
 
 	<groupId>org.springframework.data</groupId>
 	<artifactId>spring-data-elasticsearch</artifactId>
-	<version>5.3.7</version>
+	<version>6.0.0-SNAPSHOT</version>
 
 	<parent>
 		<groupId>org.springframework.data.build</groupId>
 		<artifactId>spring-data-parent</artifactId>
-		<version>3.3.7</version>
+		<version>4.0.0-SNAPSHOT</version>
 	</parent>
 
 	<name>Spring Data Elasticsearch</name>
@@ -18,16 +18,16 @@
 	<url>https://github.com/spring-projects/spring-data-elasticsearch</url>
 
 	<properties>
-		<springdata.commons>3.3.7</springdata.commons>
+		<springdata.commons>4.0.0-SNAPSHOT</springdata.commons>
 
 		<!-- version of the ElasticsearchClient	-->
-		<elasticsearch-java>8.13.4</elasticsearch-java>
+		<elasticsearch-java>9.0.1</elasticsearch-java>
 
-		<hoverfly>0.14.4</hoverfly>
-		<log4j>2.18.0</log4j>
-		<jsonassert>1.5.1</jsonassert>
-		<testcontainers>1.18.0</testcontainers>
-		<wiremock>2.35.1</wiremock>
+		<hoverfly>0.19.0</hoverfly>
+		<log4j>2.23.1</log4j>
+		<jsonassert>1.5.3</jsonassert>
+		<testcontainers>1.20.0</testcontainers>
+		<wiremock>3.9.1</wiremock>
 
 		<java-module-name>spring.data.elasticsearch</java-module-name>
 
@@ -131,9 +131,10 @@
 				</exclusion>
 			</exclusions>
 		</dependency>
+
 		<dependency>
 			<groupId>org.elasticsearch.client</groupId>
-			<artifactId>elasticsearch-rest-client</artifactId> <!-- is Apache 2-->
+			<artifactId>elasticsearch-rest-client</artifactId>
 			<version>${elasticsearch-java}</version>
 			<exclusions>
 				<exclusion>
@@ -143,6 +144,13 @@
 			</exclusions>
 		</dependency>
 
+		<dependency>
+			<groupId>com.querydsl</groupId>
+			<artifactId>querydsl-core</artifactId>
+			<version>${querydsl}</version>
+			<optional>true</optional>
+		</dependency>
+
 		<!-- Jackson JSON Mapper -->
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
@@ -255,8 +263,8 @@
 		</dependency>
 
 		<dependency>
-			<groupId>com.github.tomakehurst</groupId>
-			<artifactId>wiremock-jre8</artifactId>
+			<groupId>org.wiremock</groupId>
+			<artifactId>wiremock</artifactId>
 			<version>${wiremock}</version>
 			<scope>test</scope>
 			<exclusions>
@@ -461,8 +469,20 @@
 	</profiles>
 
 	<repositories>
-		
-		
+		<repository>
+			<id>spring-snapshot</id>
+			<url>https://repo.spring.io/snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+			<releases>
+				<enabled>false</enabled>
+			</releases>
+		</repository>
+		<repository>
+			<id>spring-milestone</id>
+			<url>https://repo.spring.io/milestone</url>
+		</repository>
 	</repositories>
 
 </project>

src/main/antora/antora-playbook.yml

@@ -17,7 +17,7 @@ content:
     - url: https://github.com/spring-projects/spring-data-commons
       # Refname matching:
       # https://docs.antora.org/antora/latest/playbook/content-refname-matching/
-      branches: [ main, 3.2.x ]
+      branches: [ main, 3.4.x, 3.3.x ]
       start_path: src/main/antora
 asciidoc:
   attributes:

src/main/antora/modules/ROOT/nav.adoc

@@ -10,6 +10,10 @@
 *** xref:migration-guides/migration-guide-5.0-5.1.adoc[]
 *** xref:migration-guides/migration-guide-5.1-5.2.adoc[]
 *** xref:migration-guides/migration-guide-5.2-5.3.adoc[]
+*** xref:migration-guides/migration-guide-5.3-5.4.adoc[]
+*** xref:migration-guides/migration-guide-5.4-5.5.adoc[]
+*** xref:migration-guides/migration-guide-5.5-6.0.adoc[]
+
 
 * xref:elasticsearch.adoc[]
 ** xref:elasticsearch/clients.adoc[]

src/main/antora/modules/ROOT/pages/elasticsearch/auditing.adoc

@@ -10,7 +10,7 @@ In order for the auditing code to be able to decide whether an entity instance i
 ----
 package org.springframework.data.domain;
 
-import org.springframework.lang.Nullable;
+import org.jspecify.annotations.Nullable;
 
 public interface Persistable<ID> {
     @Nullable

src/main/antora/modules/ROOT/pages/elasticsearch/elasticsearch-new.adoc

@@ -1,10 +1,28 @@
 [[new-features]]
 = What's new
 
-[[new-features.5-3-1]]
-== New in Spring Data Elasticsearch 5.3.1
+[[new-features.6-0-0]]
+== New in Spring Data Elasticsearch 6.6
 
-* Upgrade to Elasticsearch 8.13.4.
+* Upgarde to Spring 7
+* Switch to jspecify nullability annotations
+* Upgrade to Elasticsearch 9.0.1
+
+
+[[new-features.5-5-0]]
+== New in Spring Data Elasticsearch 5.5
+
+* Upgrade to Elasticsearch 8.18.1.
+* Add support for the `@SearchTemplateQuery` annotation on repository methods.
+* Scripted field properties of type collection can be populated from scripts returning arrays.
+
+[[new-features.5-4-0]]
+== New in Spring Data Elasticsearch 5.4
+
+* Upgrade to Elasticsearch 8.15.3.
+* Allow to customize the mapped type name for `@InnerField` and `@Field` annotations.
+* Support for Elasticsearch SQL.
+* Add support for retrieving request executionDuration.
 
 [[new-features.5-3-0]]
 == New in Spring Data Elasticsearch 5.3

src/main/antora/modules/ROOT/pages/elasticsearch/misc.adoc

@@ -365,6 +365,8 @@ operations.putScript(                            <.>
 
 To use a search template in a search query, Spring Data Elasticsearch provides the `SearchTemplateQuery`, an implementation of the `org.springframework.data.elasticsearch.core.query.Query` interface.
 
+NOTE: Although `SearchTemplateQuery` is an implementation of the `Query` interface, not all of the functionality provided by the base class is available for a `SearchTemplateQuery` like setting a `Pageable` or a `Sort`. Values for this functionality must be added to the stored script like shown in the following example for paging parameters. If these values are set on the `Query` object, they will be ignored.
+
 In the following code, we will add a call using a search template query to a custom repository implementation (see
 xref:repositories/custom-implementations.adoc[]) as an example how this can be integrated into a repository call.
 
@@ -449,4 +451,3 @@ var query = Query.findAll().addSort(Sort.by(order));
 About the filter query: It is not possible to use a `CriteriaQuery` here, as this query would be converted into a Elasticsearch nested query which does not work in the filter context. So only `StringQuery` or `NativeQuery` can be used here. When using one of these, like the term query above, the Elasticsearch field names must be used, so take care, when these are redefined with the `@Field(name="...")` definition.
 
 For the definition of the order path and the nested paths, the Java entity property names should be used.
-

src/main/antora/modules/ROOT/pages/elasticsearch/repositories/elasticsearch-repository-queries.adoc

@@ -10,7 +10,9 @@ The Elasticsearch module supports all basic query building feature as string que
 === Declared queries
 
 Deriving the query from the method name is not always sufficient and/or may result in unreadable method names.
-In this case one might make use of the `@Query` annotation (see xref:elasticsearch/repositories/elasticsearch-repository-queries.adoc#elasticsearch.query-methods.at-query[Using @Query Annotation] ).
+In this case one might make use of the `@Query` annotation (see xref:elasticsearch/repositories/elasticsearch-repository-queries.adoc#elasticsearch.query-methods.at-query[Using the @Query Annotation] ).
+
+Another possibility is the use of a search-template, (see xref:elasticsearch/repositories/elasticsearch-repository-queries.adoc#elasticsearch.query-methods.at-searchtemplate-query[Using the @SearchTemplateQuery Annotation] ).
 
 [[elasticsearch.query-methods.criterions]]
 == Query creation
@@ -312,11 +314,13 @@ Repository methods can be defined to have the following return types for returni
 * `SearchPage<T>`
 
 [[elasticsearch.query-methods.at-query]]
-== Using @Query Annotation
+== Using the @Query Annotation
 
 .Declare query on the method using the `@Query` annotation.
 ====
-The arguments passed to the method can be inserted into placeholders in the query string. The placeholders are of the form `?0`, `?1`, `?2` etc. for the first, second, third parameter and so on.
+The arguments passed to the method can be inserted into placeholders in the query string.
+The placeholders are of the form `?0`, `?1`, `?2` etc. for the first, second, third parameter and so on.
+
 [source,java]
 ----
 interface BookRepository extends ElasticsearchRepository<Book, String> {
@@ -341,15 +345,20 @@ It will be sent to Easticsearch as value of the query element; if for example th
 }
 ----
 ====
+
 .`@Query` annotation on a method taking a Collection argument
 ====
 A repository method such as
+
 [source,java]
 ----
 @Query("{\"ids\": {\"values\": ?0 }}")
 List<SampleEntity> getByIds(Collection<String> ids);
 ----
-would make an https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-ids-query.html[IDs query] to return all the matching documents. So calling the method with a `List` of `["id1", "id2", "id3"]` would produce the query body
+
+would make an https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-ids-query.html[IDs query] to return all the matching documents.
+So calling the method with a `List` of `["id1", "id2", "id3"]` would produce the query body
+
 [source,json]
 ----
 {
@@ -369,7 +378,6 @@ would make an https://www.elastic.co/guide/en/elasticsearch/reference/current/qu
 ====
 https://docs.spring.io/spring-framework/reference/core/expressions.html[SpEL expression] is also supported when defining query in `@Query`.
 
-
 [source,java]
 ----
 interface BookRepository extends ElasticsearchRepository<Book, String> {
@@ -411,6 +419,7 @@ If for example the function is called with the parameter _John_, it would produc
 .accessing parameter property.
 ====
 Supposing that we have the following class as query parameter type:
+
 [source,java]
 ----
 public record QueryParameter(String value) {
@@ -444,7 +453,9 @@ We can pass `new QueryParameter("John")` as the parameter now, and it will produ
 
 .accessing bean property.
 ====
-https://docs.spring.io/spring-framework/reference/core/expressions/language-ref/bean-references.html[Bean property] is also supported to access. Given that there is a bean named `queryParameter` of type `QueryParameter`, we can access the bean with symbol `@` rather than `#`, and there is no need to declare a parameter of type `QueryParameter` in the query method:
+https://docs.spring.io/spring-framework/reference/core/expressions/language-ref/bean-references.html[Bean property] is also supported to access.
+Given that there is a bean named `queryParameter` of type `QueryParameter`, we can access the bean with symbol `@` rather than `#`, and there is no need to declare a parameter of type `QueryParameter` in the query method:
+
 [source,java]
 ----
 interface BookRepository extends ElasticsearchRepository<Book, String> {
@@ -493,6 +504,7 @@ interface BookRepository extends ElasticsearchRepository<Book, String> {
 NOTE: collection values should not be quoted when declaring the elasticsearch json query.
 
 A collection of `names` like `List.of("name1", "name2")` will produce the following terms query:
+
 [source,json]
 ----
 {
@@ -532,6 +544,7 @@ interface BookRepository extends ElasticsearchRepository<Book, String> {
     Page<Book> findByName(Collection<QueryParameter> parameters, Pageable pageable);
 }
 ----
+
 This will extract all the `value` property values as a new `Collection` from `QueryParameter` collection, thus takes the same effect as above.
 ====
 
@@ -560,3 +573,20 @@ interface BookRepository extends ElasticsearchRepository<Book, String> {
 ----
 
 ====
+
+[[elasticsearch.query-methods.at-searchtemplate-query]]
+== Using the @SearchTemplateQuery Annotation
+
+When using Elasticsearch search templates - (see xref:elasticsearch/misc.adoc#elasticsearch.misc.searchtemplates [Search Template support]) it is possible to specify that a repository method should use a template by adding the `@SearchTemplateQuery` annotation to that method.
+
+Let's assume that there is a search template stored with the name "book-by-title" and this template need a parameter named "title", then a repository method using that search template can be defined like this:
+
+[source,java]
+----
+interface BookRepository extends ElasticsearchRepository<Book, String> {
+    @SearchTemplateQuery(id = "book-by-title")
+    SearchHits<Book> findByTitle(String title);
+}
+----
+
+The parameters of the repository method are sent to the seacrh template as key/value pairs where the key is the parameter name and the value is taken from the actual value when the method is invoked.

src/main/antora/modules/ROOT/pages/elasticsearch/scripted-and-runtime-fields.adoc

@@ -20,12 +20,12 @@ Whereas the birthdate is fix, the age depends on the time when a query is issued
 ====
 [source,java]
 ----
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.elasticsearch.annotations.DateFormat;
 import org.springframework.data.elasticsearch.annotations.Document;
 import org.springframework.data.elasticsearch.annotations.Field;
 import org.springframework.data.elasticsearch.annotations.ScriptedField;
-import org.springframework.lang.Nullable;
 
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;

src/main/antora/modules/ROOT/pages/elasticsearch/template.adoc

@@ -81,7 +81,7 @@ When a document is retrieved with the methods of the  `DocumentOperations` inter
 When searching with the methods of the `SearchOperations` interface, additional information is available for each entity, for example the _score_ or the _sortValues_ of the found entity.
 
 In order to return this information, each entity is wrapped in a `SearchHit` object that contains this entity-specific additional information.
-These `SearchHit` objects themselves are returned within a `SearchHits` object which additionally contains informations about the whole search like the _maxScore_ or requested aggregations.
+These `SearchHit` objects themselves are returned within a `SearchHits` object which additionally contains informations about the whole search like the _maxScore_ or requested aggregations or the execution duration it took to complete the request.
 The following classes and interfaces are now available:
 
 .SearchHit<T>

src/main/antora/modules/ROOT/pages/elasticsearch/versions.adoc

@@ -6,9 +6,12 @@ The following table shows the Elasticsearch and Spring versions that are used by
 [cols="^,^,^,^",options="header"]
 |===
 | Spring Data Release Train | Spring Data Elasticsearch | Elasticsearch | Spring Framework
-| 2024.0  | 5.3.3 | 8.13.4 | 6.1.x
-| 2023.1 (Vaughan) | 5.2.x | 8.11.1 | 6.1.x
-| 2023.0 (Ullmann) | 5.1.xfootnote:oom[Out of maintenance] | 8.7.1 | 6.0.x
+| 2025.1 (in development) | 6.0.x | 9.0.1 | 7.0.x
+| 2025.0 | 5.5.x | 8.18.1 | 6.2.x
+| 2024.1 | 5.4.x | 8.15.5 | 6.1.x
+| 2024.0 | 5.3.xfootnote:oom[Out of maintenance] | 8.13.4 | 6.1.x
+| 2023.1 (Vaughan) | 5.2.xfootnote:oom[] | 8.11.1 | 6.1.x
+| 2023.0 (Ullmann) | 5.1.xfootnote:oom[] | 8.7.1 | 6.0.x
 | 2022.0 (Turing) | 5.0.xfootnote:oom[] | 8.5.3 | 6.0.x
 | 2021.2 (Raj) | 4.4.xfootnote:oom[] | 7.17.3 | 5.3.x
 | 2021.1 (Q) | 4.3.xfootnote:oom[] | 7.15.2 | 5.3.x

src/main/antora/modules/ROOT/pages/migration-guides/migration-guide-5.2-5.3.adoc

@@ -5,14 +5,17 @@ This section describes breaking changes from version 5.2.x to 5.3.x and how remo
 
 [[elasticsearch-migration-guide-5.2-5.3.breaking-changes]]
 == Breaking Changes
-During the parameter replacement in `@Query` annotated repository methods previous versions wrote the String _"null"_ into the query that was sent to Elasticsearch 
-when the actual parameter value was `null`. As Elasticsearch does not store `null` values, this behaviour could lead to problems, for example whent the fields to be 
-searched contains the string `"null"`. In Version 5.3 a `null` value in a parameter will cause a `ConversionException` to be thrown. If you are using `"null"` as the 
+
+During the parameter replacement in `@Query` annotated repository methods previous versions wrote the String `"null"` into the query that was sent to Elasticsearch when the actual parameter value was `null`.
+As Elasticsearch does not store `null` values, this behaviour could lead to problems, for example whent the fields to be searched contains the string `"null"`.
+In Version 5.3 a `null` value in a parameter will cause a `ConversionException` to be thrown.
+If you are using `"null"` as the
 `null_value` defined in a field mapping, then pass that string into the query instead of a Java `null`.
 
 [[elasticsearch-migration-guide-5.2-5.3.deprecations]]
 == Deprecations
 
 === Removals
+
 The deprecated classes `org.springframework.data.elasticsearch.ELCQueries`
 and `org.springframework.data.elasticsearch.client.elc.QueryBuilders` have been removed, use `org.springframework.data.elasticsearch.client.elc.Queries` instead.

src/main/antora/modules/ROOT/pages/migration-guides/migration-guide-5.3-5.4.adoc

@@ -0,0 +1,23 @@
+[[elasticsearch-migration-guide-5.3-5.4]]
+= Upgrading from 5.3.x to 5.4.x
+
+This section describes breaking changes from version 5.3.x to 5.4.x and how removed features can be replaced by new introduced features.
+
+[[elasticsearch-migration-guide-5.3-5.4.breaking-changes]]
+== Breaking Changes
+
+[[elasticsearch-migration-guide-5.3-5.4.breaking-changes.knn-search]]
+=== knn search
+The `withKnnQuery` method in `NativeQueryBuilder` has been replaced with `withKnnSearches` to build a `NativeQuery` with knn search.
+
+`KnnQuery` and `KnnSearch` are two different classes in elasticsearch java client and are used for different queries, with different parameters supported:
+
+- `KnnSearch`: is https://www.elastic.co/guide/en/elasticsearch/reference/8.13/search-search.html#search-api-knn[the top level `knn` query] in the elasticsearch request;
+- `KnnQuery`: is https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-knn-query.html[the `knn` query inside `query` clause];
+
+If `KnnQuery` is still preferable, please be sure to construct it inside `query` clause manually, by means of `withQuery(co.elastic.clients.elasticsearch._types.query_dsl.Query query)` clause in `NativeQueryBuilder`.
+
+[[elasticsearch-migration-guide-5.3-5.4.deprecations]]
+== Deprecations
+
+=== Removals

src/main/antora/modules/ROOT/pages/migration-guides/migration-guide-5.4-5.5.adoc

@@ -0,0 +1,30 @@
+[[elasticsearch-migration-guide-5.4-5.5]]
+= Upgrading from 5.4.x to 5.5.x
+
+This section describes breaking changes from version 5.4.x to 5.5.x and how removed features can be replaced by new introduced features.
+
+[[elasticsearch-migration-guide-5.4-5.5.breaking-changes]]
+== Breaking Changes
+
+[[elasticsearch-migration-guide-5.4-5.5.deprecations]]
+== Deprecations
+
+Some classes that probably are not used by a library user have been renamed, the classes with the old names are still there, but are deprecated:
+
+|===
+|old name|new name
+
+|ElasticsearchPartQuery|RepositoryPartQuery
+|ElasticsearchStringQuery|RepositoryStringQuery
+|ReactiveElasticsearchStringQuery|ReactiveRepositoryStringQuery
+|===
+
+=== Removals
+
+The following methods that had been deprecated since release 5.3 have been removed:
+```
+DocumentOperations.delete(Query, Class<?>)
+DocumentOperations.delete(Query, Class<?>, IndexCoordinates)
+ReactiveDocumentOperations.delete(Query, Class<?>)
+ReactiveDocumentOperations.delete(Query, Class<?>, IndexCoordinates)
+```

src/main/antora/modules/ROOT/pages/migration-guides/migration-guide-5.5-6.0.adoc

@@ -0,0 +1,21 @@
+[[elasticsearch-migration-guide-5.5-6.0]]
+= Upgrading from 5.5.x to 6.0.x
+
+This section describes breaking changes from version 5.5.x to 6.0.x and how removed features can be replaced by new introduced features.
+
+[[elasticsearch-migration-guide-5.5-6.0.breaking-changes]]
+== Breaking Changes
+
+[[elasticsearch-migration-guide-5.5-6.0.deprecations]]
+== Deprecations
+
+
+=== Removals
+
+The `org.springframework.data.elasticsearch.core.query.ScriptType` enum has been removed. To distinguish between an inline and a stored script set the appropriate values in the `org.springframework.data.elasticsearch.core.query.ScriptData` record.
+
+These methods have been removed because the Elasticsearch Client 9 does not support them anymore:
+```
+org.springframework.data.elasticsearch.client.elc.ReactiveElasticsearchIndicesClient.unfreeze(UnfreezeRequest)
+org.springframework.data.elasticsearch.client.elc.ReactiveElasticsearchIndicesClient.unfreeze(Function<UnfreezeRequest.Builder, ObjectBuilder<UnfreezeRequest>>)
+```

src/main/java/org/springframework/data/elasticsearch/BulkFailureException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/ElasticsearchErrorCause.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,10 +15,10 @@
  */
 package org.springframework.data.elasticsearch;
 
-import org.springframework.lang.Nullable;
-
 import java.util.List;
 
+import org.jspecify.annotations.Nullable;
+
 /**
  * Object describing an Elasticsearch error
  *
@@ -26,8 +26,7 @@ import java.util.List;
  * @since 4.4
  */
 public class ElasticsearchErrorCause {
-	@Nullable
-	private final String type;
+	@Nullable private final String type;
 
 	private final String reason;
 

src/main/java/org/springframework/data/elasticsearch/NoSuchIndexException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2024 the original author or authors.
+ * Copyright 2019-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/ResourceFailureException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/ResourceNotFoundException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/RestStatusException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/UncategorizedElasticsearchException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,8 +15,8 @@
  */
 package org.springframework.data.elasticsearch;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.dao.UncategorizedDataAccessException;
-import org.springframework.lang.Nullable;
 
 /**
  * @author Peter-Josef Meisch

src/main/java/org/springframework/data/elasticsearch/VersionConflictException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Alias.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Repeatable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.core.annotation.AliasFor;
+
+/**
+ * Identifies an alias for the index.
+ *
+ * @author Youssef Aouichaoui
+ * @since 5.4
+ */
+@Inherited
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.TYPE })
+@Repeatable(Aliases.class)
+public @interface Alias {
+	/**
+	 * @return Index alias name. Alias for {@link #alias}.
+	 */
+	@AliasFor("alias")
+	String value() default "";
+
+	/**
+	 * @return Index alias name. Alias for {@link #value}.
+	 */
+	@AliasFor("value")
+	String alias() default "";
+
+	/**
+	 * @return Query used to limit documents the alias can access.
+	 */
+	Filter filter() default @Filter;
+
+	/**
+	 * @return Used to route indexing operations to a specific shard.
+	 */
+	String indexRouting() default "";
+
+	/**
+	 * @return Used to route indexing and search operations to a specific shard.
+	 */
+	String routing() default "";
+
+	/**
+	 * @return Used to route search operations to a specific shard.
+	 */
+	String searchRouting() default "";
+
+	/**
+	 * @return Is the alias hidden?
+	 */
+	boolean isHidden() default false;
+
+	/**
+	 * @return Is it the 'write index' for the alias?
+	 */
+	boolean isWriteIndex() default false;
+}

src/main/java/org/springframework/data/elasticsearch/annotations/Aliases.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Container annotation that aggregates several {@link Alias} annotations.
+ *
+ * @author Youssef Aouichaoui
+ * @see Alias
+ * @since 5.4
+ */
+@Inherited
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.TYPE })
+public @interface Aliases {
+	Alias[] value();
+}

src/main/java/org/springframework/data/elasticsearch/annotations/CompletionContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2024 the original author or authors.
+ * Copyright 2019-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/CompletionField.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2024 the original author or authors.
+ * Copyright 2013-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/CountQuery.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/DateFormat.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2024 the original author or authors.
+ * Copyright 2014-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Document.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2024 the original author or authors.
+ * Copyright 2013-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -100,6 +100,13 @@ public @interface Document {
 	 */
 	boolean storeVersionInSource() default true;
 
+	/**
+	 * Aliases for the index.
+	 *
+	 * @since 5.4
+	 */
+	Alias[] aliases() default {};
+
 	/**
 	 * @since 4.3
 	 */

src/main/java/org/springframework/data/elasticsearch/annotations/Dynamic.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Field.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2024 the original author or authors.
+ * Copyright 2013-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,6 +37,8 @@ import org.springframework.core.annotation.AliasFor;
  * @author Brian Kimmig
  * @author Morgan Lutz
  * @author Sascha Woo
+ * @author Haibo Liu
+ * @author Andriy Redko
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target({ ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.METHOD })
@@ -128,6 +130,10 @@ public @interface Field {
 	boolean norms() default true;
 
 	/**
+	 * NOte that null_value setting are not supported in Elasticsearch for all types. For example setting a null_value on
+	 * a field with type text will throw an exception in the server when the mapping is written to Elasticsearch. Alas,
+	 * the Elasticsearch documentation does not specify on which types it is allowed on which it is not.
+	 *
 	 * @since 4.0
 	 */
 	String nullValue() default "";
@@ -195,6 +201,27 @@ public @interface Field {
 	 */
 	int dims() default -1;
 
+	/**
+	 * to be used in combination with {@link FieldType#Dense_Vector}
+	 *
+	 * @since 5.4
+	 */
+	String elementType() default FieldElementType.DEFAULT;
+
+	/**
+	 * to be used in combination with {@link FieldType#Dense_Vector}
+	 *
+	 * @since 5.4
+	 */
+	KnnSimilarity knnSimilarity() default KnnSimilarity.DEFAULT;
+
+	/**
+	 * to be used in combination with {@link FieldType#Dense_Vector}
+	 *
+	 * @since 5.4
+	 */
+	KnnIndexOptions[] knnIndexOptions() default {};
+
 	/**
 	 * Controls how Elasticsearch dynamically adds fields to the inner object within the document.<br>
 	 * To be used in combination with {@link FieldType#Object} or {@link FieldType#Nested}
@@ -218,4 +245,11 @@ public @interface Field {
 	 * @since 5.1
 	 */
 	boolean storeEmptyValue() default true;
+
+	/**
+	 * overrides the field type in the mapping which otherwise will be taken from corresponding {@link FieldType}
+	 *
+	 * @since 5.4
+	 */
+	String mappedTypeName() default "";
 }

src/main/java/org/springframework/data/elasticsearch/annotations/FieldElementType.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+/**
+ * @author Haibo Liu
+ * @since 5.4
+ */
+public final class FieldElementType {
+	public final static String DEFAULT = "";
+	public final static String FLOAT = "float";
+	public final static String BYTE = "byte";
+}

src/main/java/org/springframework/data/elasticsearch/annotations/FieldType.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2024 the original author or authors.
+ * Copyright 2013-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Filter.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+import org.springframework.core.annotation.AliasFor;
+
+/**
+ * Query used to limit documents.
+ *
+ * @author Youssef Aouichaoui
+ * @since 5.4
+ */
+public @interface Filter {
+	/**
+	 * @return Query used to limit documents. Alias for {@link #query}.
+	 */
+	@AliasFor("query")
+	String value() default "";
+
+	/**
+	 * @return Query used to limit documents. Alias for {@link #value}.
+	 */
+	@AliasFor("value")
+	String query() default "";
+}

src/main/java/org/springframework/data/elasticsearch/annotations/GeoPointField.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2024 the original author or authors.
+ * Copyright 2013-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/GeoShapeField.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2024 the original author or authors.
+ * Copyright 2017-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Highlight.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/HighlightField.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/HighlightParameters.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/IndexOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2024 the original author or authors.
+ * Copyright 2019-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/IndexPrefixes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2024 the original author or authors.
+ * Copyright 2019-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/IndexedIndexName.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/InnerField.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2024 the original author or authors.
+ * Copyright 2014-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,6 +29,8 @@ import java.lang.annotation.Target;
  * @author Aleksei Arsenev
  * @author Brian Kimmig
  * @author Morgan Lutz
+ * @author Haibo Liu
+ * @author Andriy Redko
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.ANNOTATION_TYPE)
@@ -149,4 +151,32 @@ public @interface InnerField {
 	 * @since 4.2
 	 */
 	int dims() default -1;
+
+	/**
+	 * to be used in combination with {@link FieldType#Dense_Vector}
+	 *
+	 * @since 5.4
+	 */
+	String elementType() default FieldElementType.DEFAULT;
+
+	/**
+	 * to be used in combination with {@link FieldType#Dense_Vector}
+	 *
+	 * @since 5.4
+	 */
+	KnnSimilarity knnSimilarity() default KnnSimilarity.DEFAULT;
+
+	/**
+	 * to be used in combination with {@link FieldType#Dense_Vector}
+	 *
+	 * @since 5.4
+	 */
+	KnnIndexOptions[] knnIndexOptions() default {};
+
+	/**
+	 * overrides the field type in the mapping which otherwise will be taken from corresponding {@link FieldType}
+	 *
+	 * @since 5.4
+	 */
+	String mappedTypeName() default "";
 }

src/main/java/org/springframework/data/elasticsearch/annotations/JoinTypeRelation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/JoinTypeRelations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/KnnAlgorithmType.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+/**
+ * @author Haibo Liu
+ * @since 5.4
+ */
+public enum KnnAlgorithmType {
+	HNSW("hnsw"),
+	INT8_HNSW("int8_hnsw"),
+	FLAT("flat"),
+	INT8_FLAT("int8_flat"),
+	DEFAULT("");
+
+	private final String type;
+
+	KnnAlgorithmType(String type) {
+		this.type = type;
+	}
+
+	public String getType() {
+		return type;
+	}
+}

src/main/java/org/springframework/data/elasticsearch/annotations/KnnIndexOptions.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+/**
+ * @author Haibo Liu
+ * @since 5.4
+ */
+public @interface KnnIndexOptions {
+
+	KnnAlgorithmType type() default KnnAlgorithmType.DEFAULT;
+
+	/**
+	 * Only applicable to {@link KnnAlgorithmType#HNSW} and {@link KnnAlgorithmType#INT8_HNSW} index types.
+	 */
+	int m() default -1;
+
+	/**
+	 * Only applicable to {@link KnnAlgorithmType#HNSW} and {@link KnnAlgorithmType#INT8_HNSW} index types.
+	 */
+	int efConstruction() default -1;
+
+	/**
+	 * Only applicable to {@link KnnAlgorithmType#INT8_HNSW} and {@link KnnAlgorithmType#INT8_FLAT} index types.
+	 */
+	float confidenceInterval() default -1F;
+}

src/main/java/org/springframework/data/elasticsearch/annotations/KnnSimilarity.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+/**
+ * @author Haibo Liu
+ * @since 5.4
+ */
+public enum KnnSimilarity {
+	L2_NORM("l2_norm"),
+	DOT_PRODUCT("dot_product"),
+	COSINE("cosine"),
+	MAX_INNER_PRODUCT("max_inner_product"),
+	DEFAULT("");
+
+	private final String similarity;
+
+	KnnSimilarity(String similarity) {
+		this.similarity = similarity;
+	}
+
+	public String getSimilarity() {
+		return similarity;
+	}
+}

src/main/java/org/springframework/data/elasticsearch/annotations/Mapping.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2024 the original author or authors.
+ * Copyright 2014-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/MappingAlias.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 the original author or authors.
+ * Copyright 2024-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/MultiField.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2024 the original author or authors.
+ * Copyright 2014-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/NullValueType.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2024 the original author or authors.
+ * Copyright 2020-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Query.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2024 the original author or authors.
+ * Copyright 2013-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/SearchTemplateQuery.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.elasticsearch.annotations;
+
+import org.springframework.data.annotation.QueryAnnotation;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation to mark a repository method as a search template method. The annotation defines the search template id,
+ * the parameters for the search template are taken from the method's arguments.
+ *
+ * @author P.J. Meisch (pj.meisch@sothawo.com)
+ * @since 5.5
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.METHOD, ElementType.ANNOTATION_TYPE })
+@Documented
+@QueryAnnotation
+public @interface SearchTemplateQuery {
+    /**
+     * The id of the search template. Must not be empt or null.
+     */
+    String id();
+}

src/main/java/org/springframework/data/elasticsearch/annotations/Setting.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2024 the original author or authors.
+ * Copyright 2014-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/Similarity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2024 the original author or authors.
+ * Copyright 2019-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/SourceFilters.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/TermVector.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2024 the original author or authors.
+ * Copyright 2019-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/ValueConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/WriteOnlyProperty.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/WriteTypeHint.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/annotations/package-info.java

@@ -1,3 +1,2 @@
-@org.springframework.lang.NonNullApi
-@org.springframework.lang.NonNullFields
+@org.jspecify.annotations.NullMarked
 package org.springframework.data.elasticsearch.annotations;

src/main/java/org/springframework/data/elasticsearch/aot/ElasticsearchAotPredicates.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/aot/SpringDataElasticsearchRuntimeHints.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ import static org.springframework.data.elasticsearch.aot.ElasticsearchAotPredica
 
 import java.util.Arrays;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.aot.hint.MemberCategory;
 import org.springframework.aot.hint.RuntimeHints;
 import org.springframework.aot.hint.RuntimeHintsRegistrar;
@@ -32,7 +33,6 @@ import org.springframework.data.elasticsearch.core.event.ReactiveAfterConvertCal
 import org.springframework.data.elasticsearch.core.event.ReactiveAfterLoadCallback;
 import org.springframework.data.elasticsearch.core.event.ReactiveAfterSaveCallback;
 import org.springframework.data.elasticsearch.core.event.ReactiveBeforeConvertCallback;
-import org.springframework.lang.Nullable;
 
 /**
  * @author Peter-Josef Meisch

src/main/java/org/springframework/data/elasticsearch/aot/package-info.java

@@ -1,3 +1,2 @@
-@org.springframework.lang.NonNullApi
-@org.springframework.lang.NonNullFields
+@org.jspecify.annotations.NullMarked
 package org.springframework.data.elasticsearch.aot;

src/main/java/org/springframework/data/elasticsearch/client/ClientConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2024 the original author or authors.
+ * Copyright 2018-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,8 +25,8 @@ import java.util.function.Supplier;
 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.support.HttpHeaders;
-import org.springframework.lang.Nullable;
 
 /**
  * Configuration interface exposing common client configuration properties for Elasticsearch clients.

src/main/java/org/springframework/data/elasticsearch/client/ClientConfigurationBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2024 the original author or authors.
+ * Copyright 2018-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,11 +25,11 @@ import java.util.function.Supplier;
 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.client.ClientConfiguration.ClientConfigurationBuilderWithRequiredEndpoint;
 import org.springframework.data.elasticsearch.client.ClientConfiguration.MaybeSecureClientConfigurationBuilder;
 import org.springframework.data.elasticsearch.client.ClientConfiguration.TerminalClientConfigurationBuilder;
 import org.springframework.data.elasticsearch.support.HttpHeaders;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**

src/main/java/org/springframework/data/elasticsearch/client/DefaultClientConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2024 the original author or authors.
+ * Copyright 2018-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,9 +24,8 @@ import java.util.function.Supplier;
 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 
-import org.elasticsearch.client.RestClientBuilder.HttpClientConfigCallback;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.support.HttpHeaders;
-import org.springframework.lang.Nullable;
 
 /**
  * Default {@link ClientConfiguration} implementation.

src/main/java/org/springframework/data/elasticsearch/client/ElasticsearchHost.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2024 the original author or authors.
+ * Copyright 2018-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/InetSocketAddressParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2024 the original author or authors.
+ * Copyright 2018-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/NoReachableHostException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2024 the original author or authors.
+ * Copyright 2018-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/UnsupportedBackendOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/UnsupportedClientOperationException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/AbstractQueryProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 the original author or authors.
+ * Copyright 2024-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,10 +17,10 @@ package org.springframework.data.elasticsearch.client.elc;
 
 import java.util.function.Consumer;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.core.query.CriteriaQuery;
 import org.springframework.data.elasticsearch.core.query.Query;
 import org.springframework.data.elasticsearch.core.query.StringQuery;
-import org.springframework.lang.Nullable;
 
 /**
  * An abstract class that serves as a base for query processors. It provides a common interface and basic functionality
@@ -38,8 +38,8 @@ public abstract class AbstractQueryProcessor {
 	 * @param queryConverter correct mapped field names and the values to the converted values.
 	 * @return an Elasticsearch {@literal query}.
 	 */
-	@Nullable
-	static co.elastic.clients.elasticsearch._types.query_dsl.Query getEsQuery(@Nullable Query query,
+
+	static co.elastic.clients.elasticsearch._types.query_dsl.@Nullable Query getEsQuery(@Nullable Query query,
 			@Nullable Consumer<Query> queryConverter) {
 		if (query == null) {
 			return null;

src/main/java/org/springframework/data/elasticsearch/client/elc/Aggregation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/AutoCloseableElasticsearchClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,8 @@ package org.springframework.data.elasticsearch.client.elc;
 import co.elastic.clients.elasticsearch.ElasticsearchClient;
 import co.elastic.clients.transport.ElasticsearchTransport;
 
+import java.io.IOException;
+
 import org.elasticsearch.client.RestClient;
 import org.springframework.util.Assert;
 
@@ -36,7 +38,10 @@ public class AutoCloseableElasticsearchClient extends ElasticsearchClient implem
 	}
 
 	@Override
-	public void close() throws Exception {
-		transport.close();
+	public void close() throws IOException {
+		// since Elasticsearch 8.16 the ElasticsearchClient implements (through ApiClient) the Closeable interface and
+		// handles closing of the underlying transport. We now just call the base class, but keep this as we
+		// have been implementing AutoCloseable since 4.4 and won't change that to a mere Closeable
+		super.close();
 	}
 }

src/main/java/org/springframework/data/elasticsearch/client/elc/ChildTemplate.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/ClusterTemplate.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/CriteriaFilterProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/CriteriaQueryException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/CriteriaQueryProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,13 +31,13 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.annotations.FieldType;
 import org.springframework.data.elasticsearch.core.query.Criteria;
 import org.springframework.data.elasticsearch.core.query.Field;
 import org.springframework.data.elasticsearch.core.query.HasChildQuery;
 import org.springframework.data.elasticsearch.core.query.HasParentQuery;
 import org.springframework.data.elasticsearch.core.query.InnerHitsQuery;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**
@@ -249,49 +249,54 @@ class CriteriaQueryProcessor extends AbstractQueryProcessor {
 				queryBuilder.queryString(queryStringQuery(fieldName, Objects.requireNonNull(value).toString(), boost));
 				break;
 			case LESS:
-				queryBuilder //
-						.range(rb -> rb //
-								.field(fieldName) //
-								.lt(JsonData.of(value)) //
-								.boost(boost)); //
+				queryBuilder
+						.range(rb -> rb
+								.untyped(ut -> ut
+										.field(fieldName)
+										.lt(JsonData.of(value))
+										.boost(boost)));
 				break;
 			case LESS_EQUAL:
-				queryBuilder //
-						.range(rb -> rb //
-								.field(fieldName) //
-								.lte(JsonData.of(value)) //
-								.boost(boost)); //
+				queryBuilder
+						.range(rb -> rb
+								.untyped(ut -> ut
+										.field(fieldName)
+										.lte(JsonData.of(value))
+										.boost(boost)));
 				break;
 			case GREATER:
-				queryBuilder //
-						.range(rb -> rb //
-								.field(fieldName) //
-								.gt(JsonData.of(value)) //
-								.boost(boost)); //
+				queryBuilder
+						.range(rb -> rb
+								.untyped(ut -> ut
+										.field(fieldName)
+										.gt(JsonData.of(value))
+										.boost(boost)));
 				break;
 			case GREATER_EQUAL:
-				queryBuilder //
-						.range(rb -> rb //
-								.field(fieldName) //
-								.gte(JsonData.of(value)) //
-								.boost(boost)); //
+				queryBuilder
+						.range(rb -> rb
+								.untyped(ut -> ut
+										.field(fieldName)
+										.gte(JsonData.of(value))
+										.boost(boost)));
 				break;
 			case BETWEEN:
 				Object[] ranges = (Object[]) value;
 				Assert.notNull(value, "value for a between condition must not be null");
-				queryBuilder //
-						.range(rb -> {
-							rb.field(fieldName);
+				queryBuilder
+						.range(rb -> rb
+								.untyped(ut -> {
+									ut.field(fieldName);
 									if (ranges[0] != null) {
-								rb.gte(JsonData.of(ranges[0]));
+										ut.gte(JsonData.of(ranges[0]));
 									}
 
 									if (ranges[1] != null) {
-								rb.lte(JsonData.of(ranges[1]));
+										ut.lte(JsonData.of(ranges[1]));
 									}
-							rb.boost(boost); //
-							return rb;
-						}); //
+									ut.boost(boost); //
+									return ut;
+								}));
 
 				break;
 			case FUZZY:

src/main/java/org/springframework/data/elasticsearch/client/elc/DocumentAdapters.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,17 @@ import co.elastic.clients.elasticsearch.core.search.Hit;
 import co.elastic.clients.elasticsearch.core.search.NestedIdentity;
 import co.elastic.clients.json.JsonData;
 import co.elastic.clients.json.JsonpMapper;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.jspecify.annotations.Nullable;
+import org.springframework.data.elasticsearch.core.MultiGetItem;
+import org.springframework.data.elasticsearch.core.document.Document;
+import org.springframework.data.elasticsearch.core.document.Explanation;
+import org.springframework.data.elasticsearch.core.document.NestedMetaData;
+import org.springframework.data.elasticsearch.core.document.SearchDocument;
+import org.springframework.data.elasticsearch.core.document.SearchDocumentAdapter;
+import org.springframework.data.elasticsearch.core.document.SearchDocumentResponse;
+import org.springframework.util.Assert;
 
 import java.util.Collections;
 import java.util.LinkedHashMap;
@@ -32,31 +43,21 @@ import java.util.Map;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.springframework.data.elasticsearch.core.MultiGetItem;
-import org.springframework.data.elasticsearch.core.document.Document;
-import org.springframework.data.elasticsearch.core.document.Explanation;
-import org.springframework.data.elasticsearch.core.document.NestedMetaData;
-import org.springframework.data.elasticsearch.core.document.SearchDocument;
-import org.springframework.data.elasticsearch.core.document.SearchDocumentAdapter;
-import org.springframework.data.elasticsearch.core.document.SearchDocumentResponse;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
-
 /**
  * Utility class to adapt different Elasticsearch responses to a
  * {@link org.springframework.data.elasticsearch.core.document.Document}
  *
  * @author Peter-Josef Meisch
  * @author Haibo Liu
+ * @author Mohamed El Harrougui
  * @since 4.4
  */
 final class DocumentAdapters {
 
     private static final Log LOGGER = LogFactory.getLog(DocumentAdapters.class);
 
-	private DocumentAdapters() {}
+    private DocumentAdapters() {
+    }
 
     /**
      * Creates a {@link SearchDocument} from a {@link Hit} returned by the Elasticsearch client.
@@ -74,7 +75,7 @@ final class DocumentAdapters {
         Map<String, SearchDocumentResponse> innerHits = new LinkedHashMap<>();
         hit.innerHits().forEach((name, innerHitsResult) -> {
             // noinspection ReturnOfNull
-			innerHits.put(name, SearchDocumentResponseBuilder.from(innerHitsResult.hits(), null, null, null, null, null,
+            innerHits.put(name, SearchDocumentResponseBuilder.from(innerHitsResult.hits(), null, null, null, 0, null, null,
                     searchDocument -> null, jsonpMapper));
         });
 
@@ -82,7 +83,7 @@ final class DocumentAdapters {
 
         Explanation explanation = from(hit.explanation());
 
-		List<String> matchedQueries = hit.matchedQueries();
+        Map<String, Double> matchedQueries = hit.matchedQueries();
 
         Function<Map<String, JsonData>, EntityAsMap> fromFields = fields -> {
             StringBuilder sb = new StringBuilder("{");
@@ -159,7 +160,7 @@ final class DocumentAdapters {
     }
 
     @Nullable
-	private static Explanation from(@Nullable co.elastic.clients.elasticsearch.core.explain.Explanation explanation) {
+    private static Explanation from(co.elastic.clients.elasticsearch.core.explain.@Nullable Explanation explanation) {
 
         if (explanation == null) {
             return null;

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchAggregation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchAggregations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,8 +22,8 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.core.AggregationsContainer;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchClientBeanDefinitionParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchClientFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,12 +19,12 @@ import co.elastic.clients.elasticsearch.ElasticsearchClient;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.jspecify.annotations.Nullable;
 import org.springframework.beans.factory.DisposableBean;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.FactoryBeanNotInitializedException;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.data.elasticsearch.client.ClientConfiguration;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchClients.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,9 +46,9 @@ import org.apache.http.protocol.HttpContext;
 import org.elasticsearch.client.RequestOptions;
 import org.elasticsearch.client.RestClient;
 import org.elasticsearch.client.RestClientBuilder;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.client.ClientConfiguration;
 import org.springframework.data.elasticsearch.support.HttpHeaders;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**
@@ -329,7 +329,7 @@ public final class ElasticsearchClients {
 		Assert.notNull(jsonpMapper, "jsonpMapper must not be null");
 
 		TransportOptions.Builder transportOptionsBuilder = transportOptions != null ? transportOptions.toBuilder()
-				: new RestClientOptions(RequestOptions.DEFAULT).toBuilder();
+				: new RestClientOptions(RequestOptions.DEFAULT, false).toBuilder();
 
 		RestClientOptions.Builder restClientOptionsBuilder = getRestClientOptionsBuilder(transportOptions);
 

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -135,6 +135,6 @@ public abstract class ElasticsearchConfiguration extends ElasticsearchConfigurat
 	 * @return the options that should be added to every request. Must not be {@literal null}
 	 */
 	public TransportOptions transportOptions() {
-		return new RestClientOptions(RequestOptions.DEFAULT);
+		return new RestClientOptions(RequestOptions.DEFAULT, false);
 	}
 }

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchExceptionTranslator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchTemplate.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,8 @@ import co.elastic.clients.elasticsearch.core.*;
 import co.elastic.clients.elasticsearch.core.bulk.BulkResponseItem;
 import co.elastic.clients.elasticsearch.core.msearch.MultiSearchResponseItem;
 import co.elastic.clients.elasticsearch.core.search.ResponseBody;
+import co.elastic.clients.elasticsearch.sql.ElasticsearchSqlClient;
+import co.elastic.clients.elasticsearch.sql.QueryResponse;
 import co.elastic.clients.json.JsonpMapper;
 import co.elastic.clients.transport.Version;
 
@@ -38,6 +40,7 @@ import java.util.stream.Collectors;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.BulkFailureException;
 import org.springframework.data.elasticsearch.client.UnsupportedBackendOperation;
 import org.springframework.data.elasticsearch.core.AbstractElasticsearchTemplate;
@@ -56,7 +59,7 @@ import org.springframework.data.elasticsearch.core.query.UpdateResponse;
 import org.springframework.data.elasticsearch.core.reindex.ReindexRequest;
 import org.springframework.data.elasticsearch.core.reindex.ReindexResponse;
 import org.springframework.data.elasticsearch.core.script.Script;
-import org.springframework.lang.Nullable;
+import org.springframework.data.elasticsearch.core.sql.SqlResponse;
 import org.springframework.util.Assert;
 
 /**
@@ -74,6 +77,7 @@ public class ElasticsearchTemplate extends AbstractElasticsearchTemplate {
 	private static final Log LOGGER = LogFactory.getLog(ElasticsearchTemplate.class);
 
 	private final ElasticsearchClient client;
+	private final ElasticsearchSqlClient sqlClient;
 	private final RequestConverter requestConverter;
 	private final ResponseConverter responseConverter;
 	private final JsonpMapper jsonpMapper;
@@ -85,6 +89,7 @@ public class ElasticsearchTemplate extends AbstractElasticsearchTemplate {
 		Assert.notNull(client, "client must not be null");
 
 		this.client = client;
+		this.sqlClient = client.sql();
 		this.jsonpMapper = client._transport().jsonpMapper();
 		requestConverter = new RequestConverter(elasticsearchConverter, jsonpMapper);
 		responseConverter = new ResponseConverter(jsonpMapper);
@@ -97,6 +102,7 @@ public class ElasticsearchTemplate extends AbstractElasticsearchTemplate {
 		Assert.notNull(client, "client must not be null");
 
 		this.client = client;
+		this.sqlClient = client.sql();
 		this.jsonpMapper = client._transport().jsonpMapper();
 		requestConverter = new RequestConverter(elasticsearchConverter, jsonpMapper);
 		responseConverter = new ResponseConverter(jsonpMapper);
@@ -175,19 +181,6 @@ public class ElasticsearchTemplate extends AbstractElasticsearchTemplate {
 		return delete(query, clazz, getIndexCoordinatesFor(clazz));
 	}
 
-	@Override
-	public ByQueryResponse delete(Query query, Class<?> clazz, IndexCoordinates index) {
-
-		Assert.notNull(query, "query must not be null");
-
-		DeleteByQueryRequest request = requestConverter.documentDeleteByQueryRequest(query, routingResolver.getRouting(),
-				clazz, index, getRefreshPolicy());
-
-		DeleteByQueryResponse response = execute(client -> client.deleteByQuery(request));
-
-		return responseConverter.byQueryResponse(response);
-	}
-
 	@Override
 	public ByQueryResponse delete(DeleteQuery query, Class<?> clazz, IndexCoordinates index) {
 		Assert.notNull(query, "query must not be null");
@@ -656,6 +649,19 @@ public class ElasticsearchTemplate extends AbstractElasticsearchTemplate {
 		DeleteScriptRequest request = requestConverter.scriptDelete(name);
 		return execute(client -> client.deleteScript(request)).acknowledged();
 	}
+
+	@Override
+	public SqlResponse search(SqlQuery query) {
+		Assert.notNull(query, "Query must not be null.");
+
+		try {
+			QueryResponse response = sqlClient.query(requestConverter.sqlQueryRequest(query));
+
+			return responseConverter.sqlResponse(response);
+		} catch (IOException e) {
+			throw exceptionTranslator.translateException(e);
+		}
+	}
 	// endregion
 
 	// region client callback

src/main/java/org/springframework/data/elasticsearch/client/elc/EntityAsMap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/springframework/data/elasticsearch/client/elc/HighlightQueryBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2024 the original author or authors.
+ * Copyright 2022-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import static org.springframework.data.elasticsearch.client.elc.TypeUtils.*;
 import java.util.Arrays;
 import java.util.stream.Collectors;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentEntity;
 import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentProperty;
 import org.springframework.data.elasticsearch.core.query.highlight.Highlight;
@@ -27,7 +28,6 @@ import org.springframework.data.elasticsearch.core.query.highlight.HighlightFiel
 import org.springframework.data.elasticsearch.core.query.highlight.HighlightFieldParameters;
 import org.springframework.data.elasticsearch.core.query.highlight.HighlightParameters;
 import org.springframework.data.mapping.context.MappingContext;
-import org.springframework.lang.Nullable;
 import org.springframework.util.StringUtils;
 
 /**
@@ -43,7 +43,8 @@ class HighlightQueryBuilder {
 	private final RequestConverter requestConverter;
 
 	HighlightQueryBuilder(
-			MappingContext<? extends ElasticsearchPersistentEntity<?>, ElasticsearchPersistentProperty> mappingContext, RequestConverter requestConverter) {
+			MappingContext<? extends ElasticsearchPersistentEntity<?>, ElasticsearchPersistentProperty> mappingContext,
+			RequestConverter requestConverter) {
 		this.mappingContext = mappingContext;
 		this.requestConverter = requestConverter;
 	}

src/main/java/org/springframework/data/elasticsearch/client/elc/IndicesTemplate.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2021-2024 the original author or authors.
+ * Copyright 2021-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,13 +21,13 @@ import co.elastic.clients.elasticsearch.indices.*;
 import co.elastic.clients.transport.ElasticsearchTransport;
 import co.elastic.clients.transport.endpoints.BooleanResponse;
 
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.jspecify.annotations.Nullable;
 import org.springframework.core.annotation.AnnotatedElementUtils;
 import org.springframework.dao.InvalidDataAccessApiUsageException;
 import org.springframework.data.elasticsearch.UncategorizedElasticsearchException;
@@ -46,9 +46,10 @@ import org.springframework.data.elasticsearch.core.index.GetIndexTemplateRequest
 import org.springframework.data.elasticsearch.core.index.GetTemplateRequest;
 import org.springframework.data.elasticsearch.core.index.PutIndexTemplateRequest;
 import org.springframework.data.elasticsearch.core.index.PutTemplateRequest;
+import org.springframework.data.elasticsearch.core.mapping.Alias;
+import org.springframework.data.elasticsearch.core.mapping.CreateIndexSettings;
 import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentEntity;
 import org.springframework.data.elasticsearch.core.mapping.IndexCoordinates;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**
@@ -60,8 +61,6 @@ import org.springframework.util.Assert;
 public class IndicesTemplate extends ChildTemplate<ElasticsearchTransport, ElasticsearchIndicesClient>
 		implements IndexOperations {
 
-	private static final Log LOGGER = LogFactory.getLog(IndicesTemplate.class);
-
 	// we need a cluster client as well because ES has put some methods from the indices API into the cluster client
 	// (component templates)
 	private final ClusterTemplate clusterTemplate;
@@ -137,11 +136,14 @@ public class IndicesTemplate extends ChildTemplate<ElasticsearchTransport, Elast
 
 	protected boolean doCreate(IndexCoordinates indexCoordinates, Map<String, Object> settings,
 			@Nullable Document mapping) {
+		Set<Alias> aliases = (boundClass != null) ? getAliasesFor(boundClass) : new HashSet<>();
+		CreateIndexSettings indexSettings = CreateIndexSettings.builder(indexCoordinates)
+				.withAliases(aliases)
+				.withSettings(settings)
+				.withMapping(mapping)
+				.build();
 
-		Assert.notNull(indexCoordinates, "indexCoordinates must not be null");
-		Assert.notNull(settings, "settings must not be null");
-
-		CreateIndexRequest createIndexRequest = requestConverter.indicesCreateRequest(indexCoordinates, settings, mapping);
+		CreateIndexRequest createIndexRequest = requestConverter.indicesCreateRequest(indexSettings);
 		CreateIndexResponse createIndexResponse = execute(client -> client.create(createIndexRequest));
 		return Boolean.TRUE.equals(createIndexResponse.acknowledged());
 	}
@@ -236,8 +238,7 @@ public class IndicesTemplate extends ChildTemplate<ElasticsearchTransport, Elast
 		GetMappingRequest getMappingRequest = requestConverter.indicesGetMappingRequest(indexCoordinates);
 		GetMappingResponse getMappingResponse = execute(client -> client.getMapping(getMappingRequest));
 
-		Document mappingResponse = responseConverter.indicesGetMapping(getMappingResponse, indexCoordinates);
-		return mappingResponse;
+		return responseConverter.indicesGetMapping(getMappingResponse, indexCoordinates);
 	}
 
 	@Override
@@ -449,5 +450,14 @@ public class IndicesTemplate extends ChildTemplate<ElasticsearchTransport, Elast
 	public IndexCoordinates getIndexCoordinatesFor(Class<?> clazz) {
 		return getRequiredPersistentEntity(clazz).getIndexCoordinates();
 	}
+
+	/**
+	 * Get the {@link Alias} of the provided class.
+	 *
+	 * @param clazz provided class that can be used to extract aliases.
+	 */
+	public Set<Alias> getAliasesFor(Class<?> clazz) {
+		return getRequiredPersistentEntity(clazz).getAliases();
+	}
 	// endregion
 }