Spring Boot 3.5.0 RC1 Release Notes

Spring Boot 3.5.0-RC1 Release Notes

Upgrading from Spring Boot 3.4

Auto-configured TaskExecutor Names

Thus far, Spring Boot auto-configures a TaskExecutor with the taskExecutor and applicationTaskExecutor bean names. As of this release, only the applicationTaskExecutor bean name is provided. Code that is requesting the auto-configured Executor by name should be adapted to use applicationTaskExecutor.

If you relied on this behaviour and cannot change it immediately, the alias can be added using a BeanFactoryPostProcessor, as shown in the following example:

@Configuration
public class MyConfiguration {

	@Bean
    static BeanFactoryPostProcessor taskExecutorAliasBeanFactoryPostProcessor() {
        return (beanFactory) -> beanFactory.registerAlias("applicationTaskExecutor", "taskExecutor");
    }

}

Minimum Requirements Changes

None.

New and Noteworthy

Tip	Check the configuration changelog for a complete overview of the changes in configuration.

AsyncTaskExecutor with custom Executor

If an Executor bean is present, Spring Boot can now be configured to auto-configure an AsyncTaskExecutor anyway. To do so, set the spring.task.execution.mode property to force.

When running in this mode, it makes sure that all integrations, including regular @Async processing uses the auto-configured executor, unless an AsyncConfigurer bean is defined.

Dependency Upgrades

Spring Boot 3.5.0-RC1 moves to new versions of several Spring projects:

TBD

Numerous third-party dependencies have also been updated, some of the more noteworthy of which are the following:

TBD

Miscellaneous

Apart from the changes listed above, there have also been lots of minor tweaks and improvements including:

MeterProvider beans are now automatically configured on OtlpHttpLogRecordExporter, OtlpHttpSpanExporter, OtlpGrpcLogRecordExporter and OtlpGrpcSpanExporter.
The referral mode for Spring LDAP can be configured with the new spring.ldap.referral property.
Customizers for OtlpHttpSpanExporterBuilder and OtlpGrpcSpanExporterBuilder have been added.
The new property spring.kafka.consumer.max-poll-interval can be used to configure Kafka’s maximum delay between poll invocations.