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Spring Boot 3.4.0 M1 Release Notes
Previously, when a @ConfigurationProperties class annotated with @Validated was being validated using a Bean Validation implementation such as Hibernate Validator, validation of nested properties would be performed as they were bound, irrespective of the use of @Valid.
In Spring Boot 3.4, validation now follows the behavior of the Bean Validation specification.
Validation is performed from the @ConfigurationProperties-annoated class and only cascades down to nested properties where the corresponding field is annotated with @Valid.
When upgrading, inspect your @ConfigurationProperties classes with Bean Validation constraints.
Add @Valid as necessary where you want the validation to cascade down to nested properties.
HtmlUnit has been upgraded to 4.2.
With this upgrade comes a change in dependency coordinates from net.sourceforge.htmlunit:htmlunit to org.htmlunit:htmlunit and a change in package names from com.gargoylesoftware.htmlunit. to org.htmlunit.. When upgrading, update your build configuration and imports accordingly.
Selenium HtmlUnit has been updated to 4.20.
With this upgrade comes a change in dependency coordinates from org.seleniumhq.selenium:htmlunit-driver to org.seleniumhq.selenium:htmlunit3-driver. When upgrading, update your build configuration accordingly.
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Check the configuration changelog for a complete overview of the changes in configuration. |
The new property spring.application.group can be used to group applications together, e.g. if they all belong to some business unit or one bigger application arrangement. When this property is set, it’s also included in the log messages. This behavior can be controlled with the property logging.include-application.group. The application group is also automatically added to the OpenTelemetry Resource.
The new properties management.otlp.tracing.export.enabled, management.wavefront.tracing.export.enabled and management.zipkin.tracing.export.enabled can be used to enable or disable trace exporting more finely grained.
The new properties under management.otlp.logs can be used to auto-configure OpenTelemetry’s OtlpHttpLogRecordExporter and SdkLoggerProvider.
The ProcessInfoContributor now also shows memory info about heap and non-heap usage.
Auto-configuration for MockMvcTester is provided when AssertJ is on the classpath.
MockMvcTester lets you define the requests and the assertions using a fluent API.
It can be injected anywhere MockMvc is.
For more details, check the dedicated section of the Spring Framework reference documentation.
Spring Boot 3.4.0-M1 moves to new versions of several Spring projects:
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Numerous third-party dependencies have also been updated, some of the more noteworthy of which are the following:
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Apart from the changes listed above, there have also been lots of minor tweaks and improvements including:
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The new properties
spring.docker.compose.start.argumentsandspring.docker.compose.stop.argumentscan be used to specify additional command line arguments passed to Docker Compose -
You can now use a
Customizer<Liquibase>bean to customize Liquibase before it is being used -
The properties used to create a JCache
CacheManagercan now be customized by defining aJCachePropertiesCustomizerbean. -
Spring Boot’s Testcontainers integration now supports
org.testcontainers.kafka.KafkaContainer. -
The
RequestToViewNameTranslatorused by Spring MVC can now be customized by defining a bean namedviewNameTranslator. -
Lettuce’s
ClientOptionscan now be customized using aLettuceClientOptionsBuilderCustomizerbean. For broader configuration of the wholeLettuceClientConfiguration, continue to useLettuceClientConfigurationBuilderCustomizer. -
The new customizer
ProxyConnectionFactoryCustomizercan be used to customize a R2DBCProxyConnectionFactory. -
An audit event is now published if a Spring Security logout happens.