spring-projects/spring-boot v3.0.0-RC1 on GitHub

⭐ New Features

Use GraphQL Observation instrumentation #32794
Make consistent use of Property for Gradle task configuration #32769
When the GraalVM Native Image Gradle plugin is applied, configure bootBuildImage to build a native image #32768
When the native Maven profile is enabled, configure build-image to build a native image #32764
Process logback.xml ahead-of-time to allow its configuration to be used in a native image #32756
When using Brave, auto-configure a CompositeSpanHandler with span exporting predicates, filters, and reporters #32753
Generate native-image argfile containing reachability metadata excludes for buildpacks to use #32738
When the GraalVM Native Image Gradle plugin is applied, configure bootJar to contain the output of collectReachabilityMetadata #32737
Provide maven configuration for native-build-tools reachability metadata goal #32736
Log4J2 configuration URLs should respect system settings #32735
Support profile specific Log4j2 configuration #32734
Add Log4J2 PropertySource backed by the Spring Environment #32733
Add Log4j2 StrLookup backed by the Spring Environment #32732
Add Spring Environment to Log4j2 LoggerContext #32731
Add support 'log4j.configurationFile' system property #32730
Relocate @ConstructorBinding to bind package and update default behavior #32660
Remove spring.webflux.multipart.streaming property #32658
Auto-configure ProblemDetails support for Spring MVC and Spring WebFlux #32634
Make auto-configured Brave Tracer more compliant with OTel tracer #32615
Allow the auto-configured Rabbit Stream Environment to be customized #32580
Add support for specifying application arguments when application is processed ahead-of-time #32579
Provide extensions that remove the need for the log4j-spring-boot log4j2 module #32578
Allow user to replace auto-configured Spring Data JDBC beans with their own #32571
Remove remaining properties and APIs that were deprecated in Spring Boot 2.x #32548
Move WebFlux metrics auto-configuration to the new Observation instrumentation #32539
Move MVC metrics auto-configuration to the new Observation instrumentation #32538
Prefer WebClient to RestTemplate when creating the Zipkin Sender #32529
Update WebClient metrics auto-configuration to the new Observation instrumentation #32518
Require micrometer-tracing-bridge-otel to auto-configure OpenTelemetry #32503
Require micrometer-tracing-bridge-brave to auto-configure Brave #32502
Update RestTemplate metrics auto-configuration to the new Observation instrumentation #32484
MDC & Baggage AutoConfiguration for Micrometer Tracing with Brave and OpenTelemetry #32480
Allow a Rabbit Stream Environment and Template to be auto-configured when not using a streaming listener container factory #32477
Adapt to HttpComponentClientHttpRequestFactory changes #32461
Add auto-configuration for Prometheus Exemplars #32415
Auto-configure a TracingAwareMeterObservationHandler to make tracing interoperable with metrics #32399
Add logging at INFO level if AOT is enabled and working #32396
Output auto-configuration report for context processed ahead-of-time #32109
Add native-image support for Flyway #31999
Allow "native" Maven profile to support both NBT and buildpacks #31770
Change phases of WebServer start-stop and graceful shutdown lifecycles to allow other smart lifecycles to run before graceful shutdown #31714
Allow ThreadDumpEndpoint to call ThreadMXBean in a native image #31680
Deprecate server.max-http-header-size in favor of new server.max-http-request-header-size property #29382
Make the runScripts method on AbstractScriptDatabaseInitializer more extensible #29137

🐞 Bug Fixes

Multi-Document-Separators "#---" comment checks do not account for '!' prefixed comments #32778
Actuator configprops endpoint does not display DataSize properties correctly #32776
@Bean methods in KafkaAutoConfiguration provide less type information than they could #32774
PEM formatted elliptic-curve TLS keys are an unrecognized private key format #32682
Auto-configuration of ObservationRestTemplateCustomizer fails when micrometer-core is not on the classpath #32676
Correct configuration of native and AOT-related tasks depends on plugin application order #32661
ConstructorBinding default detection is considered with a private constructor #32639
ConfigDataProperties is missing RuntimeHints #32608
Killing mvn spring-boot:run does not kill child process #32607
Assertion calls on CapturedOutput with Kotlin are very slow #32576
Classpath scanning of Jackson mixin modules does not work in a native image #32567
Empty @DefaultValue cannot be used on collections, maps, arrays or optional values #32564
Native tests fail when using @SpringBootTest with RANDOM_PORT or DEFINED_PORT #32542
Use of reflection in AbstractCompositeHealthContributorConfiguration can cause an app using actuator to fail to start in a native image #32541
WebClient- and RestTemplate-based Zipkin senders can cause a bean dependency cycle #32528
AOT processing does not work when Devtools is on the classpath #32517
CouchbaseReactiveHealthIndicator uses blocking API to retrieve the cluster diagnostics #32514
BootBuildImage's archiveFile property is annotated as an @Input but should be annotated as an @InputFile #32500
Response from loggers endpoint is incomplete in a native image #32486
Logging beans are missing during AOT processing #32483
EmbeddedLdapContextConfiguration LdapContextSource bean creation not populating base property #23030

📔 Documentation

Fix typos in logging.adoc #32821
Harmonize code sample in the "Type-safe Configuration Properties" section #32819
Update getting started documentation to use @SpringBootApplication #32780
Check documentation version links #32772
Add AOT section to Gradle Plugin #32750
Switch Java version displayed in documentation #32746
Fix typo "Elastixsearch" #32656
Add Graal Native documentation #32582
Add Javadoc since for UseMainMethod #32568
Provide since and for removal information on @Deprecated APIs #32549
Remove redundant @ExtendWith(SpringExtension.class) from MyJmxTests example #32516
Limit modules in the aggregated javadoc to those that we expect an application to depend upon #31955
Document management.tracing.enabled property #31656

🔨 Dependency Upgrades

Upgrade to Artemis 2.26.0 #32701
Upgrade to Byte Buddy 1.12.18 #32702
Upgrade to Cassandra Driver 4.15.0 #32670
Upgrade to Dependency Management Plugin 1.1.0 #32760
Upgrade to Ehcache3 3.10.2 #32703
Upgrade to Elasticsearch Client 8.4.3 #32671
Upgrade to Flyway 9.5.0 #32796
Upgrade to Groovy 4.0.6 #32797
Upgrade to Hazelcast 5.1.4 #32705
Upgrade to Hibernate 6.1.4.Final #32672
Upgrade to HtmlUnit 2.65.1 #32706
Upgrade to Infinispan 14.0.1.Final #32798
Upgrade to Jackson 2.14.0-rc2 #32771
Upgrade to Jackson Bom 2.13.4.20221013 #32725
Upgrade to Jedis 4.3.0 #32673
Upgrade to Jetty Reactive HTTPClient 3.0.7 #32707
Upgrade to Kafka 3.3.1 #32574
Upgrade to Kotlin 1.7.20 #32708
Upgrade to Lettuce 6.2.1.RELEASE #32674
Upgrade to Liquibase 4.17.0 #32709
Upgrade to Log4j2 2.19.0 #32498
Upgrade to Logback 1.4.4 #32710
Upgrade to Micrometer 1.10.0-RC1 #32598
Upgrade to Micrometer Tracing 1.0.0-RC1 #32616
Upgrade to Mockito 4.8.1 #32799
Upgrade to MongoDB 4.8.0-beta0 #32684
Upgrade to MySQL 8.0.31 and extend dependency management to new Maven identifiers #32782
Upgrade to Native Build Tools Plugin 0.9.16 #32800
Upgrade to Neo4J Java Driver 5.0.0 #32620
Upgrade to Neo4j Java Driver 5.1.0 #32711
Upgrade to Netty 4.1.84.Final #32712
Upgrade to OpenTelemetry 1.19.0 #32713
Upgrade to Rabbit Stream Client 0.8.0 #32714
Upgrade to Reactor 2022.0.0-RC1 #32599
Upgrade to Selenium 4.5.0 #32715
Upgrade to Selenium HtmlUnit 4.5.0 #32716
Upgrade to SLF4J 2.0 and Logback 1.4 #12649
Upgrade to SLF4J 2.0.3 #32717
Upgrade to SnakeYAML 1.33 #32522
Upgrade to Spring AMQP 3.0.0-RC1 #32602
Upgrade to Spring Batch 5.0.0-RC1 #32618
Upgrade to Spring Data 2022.0.0-RC1 #32601
Upgrade to Spring Framework 6.0.0-RC2 #32696
Upgrade to Spring GraphQL 1.0.0-RC1 #32605
Upgrade to Spring HATEOAS 2.0.0-RC1 #32652
Upgrade to Spring Integration 6.0.0-RC1 #32619
Upgrade to Spring Kafka 3.0.0-RC1 #32603
Upgrade to Spring LDAP 3.0.0-RC1 #32624
Upgrade to Spring RESTDocs 3.0.0-RC1 #32623
Upgrade to Spring Retry 2.0.0-RC2 #32600
Upgrade to Spring Security 6.0.0-RC1 #32604
Upgrade to Spring Session 3.0.0-RC1 #32606
Upgrade to Spring WS 4.0.0-RC1 #32621
Upgrade to Thymeleaf 3.1.0.RC1 #32628
Upgrade to Thymeleaf Extras SpringSecurity 3.1.0.RC1 #32718
Upgrade to Tomcat 10.0.27 #32719
Upgrade to Undertow 2.2.20.Final #32720

❤️ Contributors

We'd like to thank all the contributors who worked on this release!