Spring Boot 4.0.0 M3 Release Notes

Spring Boot 4.0.0-M3 Release Notes

For changes in earlier milestones, please refer to:

To help with upgrading, a migration guide is available.

None.

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

Spring Boot 4.0.0-M3 moves to new versions of several Spring projects:

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

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

Log4j Core configuration file detection for Log4j 3 has been improved
Resource lookup in DevTools restart has been optimized
ScheduledTasksObservabilityAutoConfiguration has been renamed to ScheduledTasksObservationAutoConfiguration for consistency