Spring Boot 2.4.0 M3 Release Notes

Spring Boot 2.4.0 M3 Release Notes

For changes in earlier milestones, please refer to:

• v2.4.0 M2

• v2.4.0 M1

Upgrading from Spring Boot 2.3

Minimum requirements changes

None.

New and Noteworthy

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

Spring Framework 5.3-RC1

Spring Boot 2.4 will include Spring Framework 5.3, and this milestone upgrades to Spring Framework 5.3.0-RC1. Please refer to this blog post to learn more.

Spring Data 2020.0-RC

Spring Boot 2.4 will include version 2020.0 (code-named Ockham) of the Spring Data release train, and this milestone includes RC1. Please refer to this blog post to learn more.

Dependency Upgrades

Spring Boot 2.4 M2 moves to new versions of several Spring projects:

• Reactor 2020.0.0-M2

• Spring AMQP 2.3.0-M2

• Spring Batch 4.3.0-M2

• Spring Data 2020.0.0-M2

• Spring Framework 5.3.0-M2

• Spring Integration 5.4.0-M2

• Spring Kafka 2.6.0-M1

• Spring Security 5.4.0-RC1

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

• Elasticsearch 7.8

• Mockito 3.4

• MongoDB 4.1

Miscellaneous

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

Deprecations in Spring Boot 2.4.0 M2