spring-projects/spring-boot v3.4.12 on GitHub

⚠️ Noteworthy changes

This release contains a fix to get Testcontainers working with modern Docker versions. If this causes problems in your setup, you can downgrade the minimum Docker API, effectively reverting that change.

Gradle war task does not exclude starter POMs from lib-provided #48195
Testcontainers integration fails on Docker 29.0.0 #48104
NullPointerException when using @ConditionalOnSingleCandidate with multiple manually registered singletons #48117
Buildpack fails with recent Docker installs due to hardcoded version in URL #48050
PortInUseException incorrectly thrown on failure to bind port due to Netty IP misconfiguration #47618
Image building may fail when specifying a platform if an image has already been built with a different platform #47292
Setting 'max-uri-tags' does not prevent unlimited meter growth on any AutoConfiguredCompositeMeterRegistry #47285
WebSecurityCustomizer beans are excluded by WebMvcTest #47255
Docker response 407 is not handled correctly resulting in no error message #47180
Undertow's ServletContext is destroy too early, making it unusable in @PreDestroy methods #47141
New arm64 macbooks fail to bootBuildImage due to incorrect platform image #46665
Auto-configured JCacheMetrics cannot be customized #46212
Properties bound in the child management context ignore the parent's environment prefix #45858

Fix typo in PortInUseException Javadoc #48124
Document support for configuring servlet context init parameters using properties #47951
BootstrapContext#getOrElseThrow has incorrect reference to IllegalStateException #47903
Clarify when BootstrapContext get methods may return null rather than throwing an exception or calling the fallback supplier #47896
Document how to use ContextPropagatingTaskDecorator for propagating trace context over thread boundaries #47893
Limit Kotlin API documentation to Kotlin-specific APIs #47763
Document that Actuator endpoint may have at most one extension of each type #47740
Some spring.test.* properties are not documented #47236
Document EndpointObjectMapper and management.endpoints.jackson.isolated-object-mapper #47039
Clarify how warnings about soon-to-expire SSL certificates are reported #45564
Correct section about required setters in "Type-safe Configuration Properties" #43138

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