Dear Spring Community,

I am happy to announce the 4.21.0 release of the Spring Tools 4 for Eclipse, Visual Studio Code, and Theia.

important highlights

• (Spring Boot) Completions experience for request mappings on class method level has been improved
• (Spring Boot) Spring Boot 3.2 upgrade available via OpenRewrite integration

updates to the Spring Tools 4 for Eclipse distribution

• updated to Eclipse 2023-12 release (new and noteworthy)

Detailed changes can be found in the release notes: https://github.com/spring-projects/sts4/releases/tag/4.21.0.RELEASE

downloads

To download the distribution…

Hi, Spring fans! Welcome to another installment of This Week in Spring!

• today, Spring Cloud, based on Spring Boot 3.2, goes GA! Don't miss this!
• I love this blog by Spring Framework legend Sébastien Deleuze on CDS with Spring Framework 6.1
• I really enjoyed this discussion with Spring Security community legend Laur Spilca
• there's a very interesting blog post here on how Netflix increased application performance with Spring Boot 3 on Java 17
• Digma has a nice blog looking at the new features in Spring Boot 3.2
• I like this blog looking at the power of the ResponseEntity<?>
• the state of the Octoverse blog from yesterday is really interesting! Typescript and Java changed places, which makes sense because Typescript is encroachign on JavaScript's territory and JavaScript is arguably the number one most popular (or infamous, anyway) language. Also: Singapore apparently has more than one million developers, which is great because there's not even six million people in the country, making it the country with the highest…

As a follow-up to the Runtime efficiency with Spring blog post, I am happy to share that our exploration of Project Leyden optimizations has led to some interesting discoveries regarding the JDK's little-used CDS ("Class Data Sharing") feature and has materialized into a new feature that we have been able to ship in Spring Framework 6.1.

As stated in the official documentation, Class Data Sharing (CDS) helps reduce the startup time and memory footprint of JVMs by caching class metadata in an archive file so that it can be quickly pre-loaded into a newly launched JVM. This accelerates class…

Hi, Spring fans! This week, my first as an employee of Broadcom, I am joined by Spring Security community legend Laura Spilca and we talk about all things security, OAuth, and more.

Hi, Spring fans! I hope everyone who celebrated Thanksgiving had a wonderful time. Did you indulge in too much turkey? Anyway, let's jump into this week's edition of This Week in Spring—a particularly special one for a couple of reasons. First, it's our first issue after the launch of Spring Boot 3.2 last Thursday. Second, it's my inaugural post as a member of the Broadcom family. Exciting times!

Spring Boot 3.2: A Game Changer

Spring Boot 3.2 is nothing short of revolutionary. I've delved into its myriad features in an in-depth video, which you can watch here. This release includes:

• reactive cache/scheduled abstraction
• virtual threads (project Loom)
• CRaC
• improved GraalVM native image support
• Spring for Apache Pulsar support
• the new Spring Framework 6.1 RestClient and JdbcClient
• reloadable SSL
• Java 21
• observability
• spring.main.keep-alive=true
• Docker for Neo4J, ActiveMQ, etc.
• dependencies updates (of course)
• TransactionalExecutionListener
…

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Shell 2.1.15, 3.0.10, 3.1.6 and 3.2.0-RC1 has been released and are now available from Maven Central and Spring Repos respectively.

Please see the release notes 2.1.15, release notes 3.0.10, release notes 3.1.6 and release notes 3.2.0-RC1 for more details.

Thanks to all those who have contributed with issue reports and pull requests.

How can you help?

Project Page | GitHub | Issues | Documentation

Updates

• [11-27] Blog posts updated to refer to the CVE reports published

The Spring Framework 6.0.14 release shipped on November 16th includes a fix for CVE-2023-34053.

The Spring Boot 2.7.18 release shipped on November 23th includes fixes for CVE-2023-34055.

Users are encouraged to update as soon as possible.

On behalf of the community I am delighted to announce the general availability of Spring Modulith 1.1 and the 1.0.3 bugfix release. This rather short stint after our 1.0 GA release in just three months ago brings us back in sync with the Spring Boot release train which we are going to follow going forward. We still managed to package up quite a few great new features, most notably:

• Support for event externalization into AMQP, Kafka, JMS, AWS SNS and SQS (the latter two contributed by Maciej Walkowiak) #248 #344
• API to deal with completed and incompleted event publications #294
• Strengthened relationship constraints for code residing in the application root #317
• A Now interface extracted from Moments and additional methods to access today (LocalDate) and the current point in time as Instant.
• @ApplicationModuleListener moved into the events package (in the …-events-api artifact) #322
• Support for the actuators in native images #376, #375
• A Neo4j implementation of the Event Publication Repository (contributed by Gerrit Meier) …