Spring Boot - v3.2.0-M1

:star: New Features

• Use Docker CLI context to determine daemon host address for image building #36445
• Move configuration extension properties to dedicated Flyway sub-namespaces #36444
• Configure SQL Server Flyway extension only if flyway-sqlserver is available #36440
• Add property for base time unit in OTLP registry #36393
• Auto-configure Spring GraphQL's AnnotatedControllerConfigurer to use the application task executor #36388
• Configure WebFlux's support for blocking execution to use the auto-configured AsyncTaskExecutor #36331
• Deprecate DelegatingApplicationContextInitializer and DelegatingApplicationListener in favour of registering each delegate programatically or in spring.factories #36251
• Add support for RestClient #36213
• Auto-configure ObservationRegistry in ScheduledTaskRegistrar for scheduled tasks observations #36119
• Support JDK HttpClient in ClientHttpRequestFactories #36118
• Support Jetty in ClientHttpRequestFactories #36116
• Change server log message to have "port" or "ports" rather than "ports(s)" #36103
• Change B3 extraction format to single #36061
• Remove code that was deprecated in 3.0 for removal in 3.2 #36034
• Replace LoggingSystemProperties constants with an Enum #36015
• Allow key password to be set for a PemSslStoreBundle #35983
• Remove support for configuring request body buffering when using RestTemplate #35980
• Add property to limit Jetty's maximum connections #35899
• Provide a configuration property and condition to control the use of virtual threads #35892
• Support custom token validators for OAuth2 Resource Server auto-configuration #35874
• When virtual threads are enabled, auto-configure an AsyncTaskExecutor that uses them #35710
• When virtual threads are enabled, configure Tomcat to use them #35704
• When virtual threads are enabled, configure Jetty to use them #35703
• Enable providing custom OtlpHttpSpanExporter #35596
• Include the application name on each log line when it is available #35593
• Provide more control over the OTel SpanProcessors #35560
• Add auto-configuration for ObservedAspect #35191
• Deprecate auto-configuration for InfluxDB #35190
• Add service connection support for ActiveMQ #35080
• Allow WebServers to be stopped and restarted #34955
• Add a property to disable Observations starting with a prefix #34802
• Custom ObservationHandler beans need to be registered after infrastructure handlers #34399
• Automatically log correlation IDs when Micrometer tracing is being used #33280
• Create configuration property for common low cardinality KeyValues in Observations #33241
• Provide a configuration property for configuring Flyway's use of transactional locks with PostgreSQL #32629

:lady_beetle: Bug Fixes

• Native reflection hints missing for nested properties declared in a superclass #36449
• Connecting to Mongo fails with an UnknownHostException when spring.data.mongodb.additional-hosts is configured #36446
• Auto-configured ExemplarSampler bean only backs off when a DefaultExemplarSampler is defined #36430
• OTel Span is missing required attributes #36425
• Auto-configured JacksonJsonpMapper is conditional on an ObjectMapper bean but does not use such a bean #36410
• Application fails to start when @Importing a @ConfigurationProperties class that is eligible for constructor binding #36360
• Mongo auto-configuration fails when username or password properties contain a colon (:) or at-sign (@) #36294
• Only one health group can be exposed using management.endpoint.health.group.xxx.additional-path=server:/newpath when using Jersey #36277
• MockitoPostProcessor doesn't check FactoryBean.OBJECT_TYPE_ATTRIBUTE correctly #36232
• ImportsContextCustomizer does not support AliasFor #36210
• Saml2RelyingPartyRegistrationConfiguration can choose the wrong RelyingPartyRegistration.Builder when using a metadata file with multiple providers #36164
• ConfigurationPropertiesReportEndpoint does not display primitive wrapper types #36161
• ConfigurationPropertyName#equals is not symmetric when element has trailing dashes #36146
• Methods in KafkaConnectionDetails are named inconsistently #36133
• ScheduledTasksEndpoint throws NPE if PeriodicTrigger is used with custom SchedulingConfigurer #36130
• Java system properties can not be applied to RestTemplate HttpClient connection in some cases #36124
• Excluding auto-configuration class that relates to a TemplateAvailabilityProvider causes property binding to fail for native images #36122
• When using Flyway 9.20.0, auto-configuration fails with a NoSuchMethodError due to the removal of Oracle-related methods from FluentConfiguration #36100
• Dependency management for Selenium 4.8.x is incorrect #36093
• Slice test annotations do not include SslAutoConfiguration #36056
• @AutoConfigureObservability has unintentional consequences on integration tests #35354
• @ConfigurationPropertiesBinding converters are not invoked for target types that can be converted by ObjectToObjectConverter #34631

:notebook_with_decorative_cover: Documentation

• Documented Servlet container system requirements are out of date #36356
• Update the javadoc of ClientHttpRequestFactories to describe the ClientHttpRequestFactory implementations that it supports #36269
• Polish formatting in "Running Spring Batch Jobs on Startup" #36234
• Improve Kubernetes liveness and readiness probes customization documentation #36220
• Document auto-configuration of underlying HTTP client when using WebClient or RestTemplate #36216
• Polish Kafka Properties Docs #36143
• Fix typo in the Using R2DBC section of the reference documentation #36140
• Document observability auto-configuration for HTTP clients #36132
• Improve documentation for baggage propagation into MDC #36113
• Add Javadoc since to ImageReference.inTaglessForm() #36055
• Fix typo in docker compose service connections note #36052

:hammer: Dependency Upgrades

• Upgrade to ActiveMQ 5.18.2 #36348
• Upgrade to Angus Mail 2.0.2 #35943
• Upgrade to Artemis 2.29.0 #36349
• Upgrade to Brave 5.16.0 #35944
• Upgrade to Build Helper Maven Plugin 3.4.0 #35945
• Upgrade to Cassandra Driver 4.16.0 #35946
• Upgrade to Commons Codec 1.16.0 #36350
• Upgrade to Dependency Management Plugin 1.1.2 #36437
• Upgrade to Elasticsearch Client 8.8.2 #36351
• Upgrade to Flyway 9.20.1 #36364
• Upgrade to Git Commit ID Maven Plugin 6.0.0 #35949
• Upgrade to GraphQL Java 20.4 #36365
• Upgrade to Groovy 4.0.13 #36366
• Upgrade to H2 2.2.220 #36367
• Upgrade to Hazelcast 5.3.1 #35950
• Upgrade to Hibernate 6.2.6.Final #36368
• Upgrade to Hibernate Validator 8.0.1.Final #36369
• Upgrade to Infinispan 14.0.12.Final #36370
• Upgrade to Jakarta WebSocket 2.1.1 #36371
• Upgrade to Janino 3.1.10 #36372
• Upgrade to JBoss Logging 3.5.3.Final #36373
• Upgrade to Jedis 4.4.3 #35953
• Upgrade to jOOQ 3.18.5 #36374
• Upgrade to Json-smart 2.5.0 #36375
• Upgrade to Kafka 3.5.0 #35954
• Upgrade to Kotlin 1.9.0 #36362
• Upgrade to Kotlin Coroutines 1.7.2 #36376
• Upgrade to Lettuce 6.2.5.RELEASE #36438
• Upgrade to Liquibase 4.23.0 #36377
• Upgrade to Maven Assembly Plugin 3.6.0 #35957
• Upgrade to Maven Clean Plugin 3.3.1 #36378
• Upgrade to Maven Dependency Plugin 3.6.0 #35958
• Upgrade to Maven Failsafe Plugin 3.1.2 #35959
• Upgrade to Maven Invoker Plugin 3.6.0 #35960
• Upgrade to Maven Shade Plugin 3.5.0 #35961
• Upgrade to Maven Source Plugin 3.3.0 #35962
• Upgrade to Maven Surefire Plugin 3.1.2 #35963
• Upgrade to Maven War Plugin 3.4.0 #35964
• Upgrade to Micrometer 1.12.0-M1 #36188
• Upgrade to Micrometer Tracing 1.2.0-M1 #36199
• Upgrade to Mockito 5.4.0 #35965
• Upgrade to MongoDB 4.10.2 #36379
• Upgrade to MySQL 8.1.0 #36470
• Upgrade to Native Build Tools Plugin 0.9.23 #35966
• Upgrade to Neo4j Java Driver 5.10.0 #36380
• Upgrade to OkHttp 4.11.0 #35968
• Upgrade to OpenTelemetry 1.28.0 #36381
• Upgrade to R2DBC MSSQL 1.0.2.RELEASE #36471
• Upgrade to R2DBC Postgresql 1.0.2.RELEASE #36473
• Upgrade to Rabbit AMQP Client 5.18.0 #35981
• Upgrade to Rabbit Stream Client 0.11.0 #36382
• Upgrade to Reactor Bom 2023.0.0-M1 #36300
• Upgrade to REST Assured 5.3.1 #35972
• Upgrade to Selenium 4.10.0 #35974
• Upgrade to Selenium HtmlUnit 4.10.0 #35975
• Upgrade to SnakeYAML 2.0 #35982
• Upgrade to Spring AMQP 3.0.6 #36439
• Upgrade to Spring Batch 5.1.0-M1 #36189
• Upgrade to Spring Data Bom 2023.1.0-M1 #36190
• Upgrade to Spring Framework 6.1.0-M3 #36443
• Upgrade to Spring GraphQL 1.2.2 #36191
• Upgrade to Spring HATEOAS 2.2.0-M2 #36456
• Upgrade to Spring Integration 6.2.0-M1 #36193
• Upgrade to Spring Kafka 3.0.9 #36194
• Upgrade to Spring LDAP 3.2.0-M1 #36299
• Upgrade to Spring Security 6.2.0-M1 #36195
• Upgrade to Spring Session 3.2.0-M1 #36196
• Upgrade to SQLite JDBC 3.42.0.0 #35978
• Upgrade to Tomcat 10.1.11 #36383
• Upgrade to Versions Maven Plugin 2.16.0 #35979
• Upgrade to WebJars Locator Core 0.53 #36384
• Upgrade to XML Maven Plugin 1.1.0 #36385

:heart: Contributors

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

@KitBolourchi, @Pengfei-Lu, @asashour, @bbulgarelli, @bedla, @dependabot[bot], @dkswnkk, @dreis2211, @eddumelendez, @eydunn, @garyrussell, @izeye, @johnnywiller, @jonatan-ivanov, @jstansel, @lasselindqvist, @lmartelli, @poutsma, @quaff, @romangr, @spencergibb, and @vpavic