v3.4.0

⭐ New Features

• Add withDefaultRequestConfigCustomizer method to HttpComponentsClientHttpRequestFactoryBuilder #43139
• Fail JsonWriter if duplicate names are detected #43041
• Add JsonObjectDeserializer.nullSafeValue method that accepts a mapper Function #42972
• Support timeout property for GraphQL over SSE #42966
• Improve performance of ConfigurationPropertiesBinder by storing bind handlers on first access #42950
• Improve performance of ConcurrentReferenceCachingMetadataReaderFactory #42949
• Log warning in HikariCheckpointRestoreLifecycle if pool suspension isn't configured #42937
• Remove spring-boot-starter-aop dependency from spring-boot-starter-data-jpa and spring-boot-starter-integration #42934

🐞 Bug Fixes

• Jersey body handling is inconsistent with Spring Webflux and Spring MVC #43209
• Classes are accidentally named "structure logging" instead of "structured logging" #43203
• StructuredLoggingJsonProperties customizer should be a Class reference rather than a String #43202
• Cannot package OCI image when 'docker.io/paketobuildpacks/new-relic' is provided as a buildpack #43171
• Incorrect Type for 'management.endpoints.access.default' defined in additional-spring-configuration-metadata.json #43154
• WebServerPortFileWriter fails when using a portfile without extension #43117
• SslOptions.isSpecified() only returns true if ciphers and enabled protocols are set #43084
• SslHealthIndicator throws NullPointerException when using SslBundle with SslStoreBundle.NONE #43078
• JdkClientHttpRequestFactoryBuilder and JettyClientHttpRequestFactoryBuilder do not set Ciphers or Enabled Protocols #43077
• Root cause of errors is hidden when loading images from archive #43070
• mvn spring-boot:run fails on Windows with "Could Not Find or Load Main Class" when path contains non-ASCII characters #43062
• A @SpyBean on the output of a FactoryBean is not reset #43053
• Logback logging system does not process URLs with paths not ending in .xml #42990
• Bean-based conditions do not consider factory beans correctly when determining if they are a candidate #42970
• NPE in bootBuildImage when setting DOCKER_CONTEXT=default #42960
• Warning due to duplicate MockResolver extensions #42957
• HttpHostConnectException is thrown when using buildpacks with Gradle or Maven on Windows #42952
• build-info doesn't support seconds since the epoch from project.build.outputTimestamp #42936
• NPE in OnClassCondition.resolveOutcomesThreaded following thread interruption because firstHalf is null #42926
• Default WebSocketMessageBrokerConfigurer is always overriding custom channel executor #42924
• X-Registry-Auth header sent to Docker Engine API contains field "authHeader" #42915
• ApplicationContextRunner has inconsistent behaviour with duplicate auto-configuration class names #17963

📔 Documentation

• Migrate class references to full javadoc links #43239
• Documentation for 'spring.datasource.type' is misleading #43199
• Update "Upgrading From" section to use "2.x" #43160
• Include spring-boot-loader in API documentation #43153
• Document how and where to add custom GraalVM configuration files #43074
• Rework DataSource configuration examples to separate defining an additional DataSource and defining a DataSource of a different type #43059
• Location of the layers schema is incorrect in the Maven Plugin's examples #43033
• Link to Eclipse setup instructions #42954
• Fix link to Checkpoint and Restore status page #42939

🔨 Dependency Upgrades

• Upgrade to ActiveMQ 6.1.4 #43128
• Upgrade to Byte Buddy 1.15.10 #43097
• Upgrade to Couchbase Client 3.7.5 #43098
• Upgrade to Elasticsearch Client 8.15.4 #43129
• Upgrade to Flyway 10.20.1 #43130
• Upgrade to Groovy 4.0.24 #43099
• Upgrade to Hibernate 6.6.2.Final #43100
• Upgrade to HttpClient5 5.4.1 #43102
• Upgrade to Infinispan 15.0.11.Final #43131
• Upgrade to Jackson Bom 2.18.1 #43103
• Upgrade to Jetty 12.0.15 #43104
• Upgrade to jOOQ 3.19.15 #43105
• Upgrade to Kafka 3.8.1 #43106
• Upgrade to Lettuce 6.4.1.RELEASE #43185
• Upgrade to Logback 1.5.12 #43107
• Upgrade to Lombok 1.18.36 #43186
• Upgrade to Maven Dependency Plugin 3.8.1 #43108
• Upgrade to Maven Failsafe Plugin 3.5.2 #43109
• Upgrade to Maven Surefire Plugin 3.5.2 #43110
• Upgrade to Micrometer 1.14.1 #43187
• Upgrade to Micrometer Tracing 1.4.0 #43120
• Upgrade to MongoDB 5.2.1 #43111
• Upgrade to Netty 4.1.115.Final #43133
• Upgrade to Prometheus Client 1.3.3 #43112
• Upgrade to Pulsar Reactive 0.5.9 #43188
• Upgrade to Reactor Bom 2024.0.0 #43015
• Upgrade to Spring AMQP 3.2.0 #43016
• Upgrade to Spring Authorization Server 1.4.0 #43017
• Upgrade to Spring Batch 5.2.0 #43018
• Upgrade to Spring Data Bom 2024.1.0 #43019
• Upgrade to Spring Framework 6.2.0 #43020
• Upgrade to Spring HATEOAS 2.4.0 #43021
• Upgrade to Spring Integration 6.4.0 #43022
• Upgrade to Spring Kafka 3.3.0 #43023
• Upgrade to Spring LDAP 3.2.8 #43189
• Upgrade to Spring Pulsar 1.2.0 #43024
• Upgrade to Spring RESTDocs 3.0.3 #43025
• Upgrade to Spring Security 6.4.1 #43232
• Upgrade to Spring Session 3.4.0 #43027
• Upgrade to Testcontainers 1.20.4 #43243
• Upgrade to Tomcat 10.1.33 #43134
• Upgrade to Undertow 2.3.18.Final #43166
• Upgrade to WebJars Locator Lite 1.0.1 #43135

❤️ Contributors

Thank you to all the contributors who worked on this release:

@ahoehma, @deki, @izeye, @ngocnhan-tran1996, @nosan, @quaff, and @wickdynex