Hi, Spring fans! In this installment Josh Long (@starbuxman) talks to Netflixer, Spinnaker continuous delivery platform co-founder, Target distinguished engineer, Biden campaign CTO, RatPack contributor, and an all-around epic guy Dan Woods (@danveloper).

In preparation for the GA release on May 20 2021, I am pleased to announce that Spring Boot 2.5.0-RC1 has been released and is available from our milestone repository. This release adds a number of new features and bug fixes.

Highlights of the RC include:

• A new actuator endpoint for Quartz
• Support for database initialization with R2DBC
• Micometer metrics support for Spring Data repositories and MongoDB
• Support for Gradle 7.0

For a complete list of changes and upgrade instructions, please see the Spring Boot 2.5.0-RC1 Release Notes on the wiki and the updated reference documentation.

If you want to get started with 2.5 and try out the new features, you can bootstrap a new project on start.spring.io…

Dear Spring community,

On behalf of the team and all the contributors, it’s my pleasure to announce a Release Candidate 1 for Spring Integration 5.5, plus Spring Integration 5.4.6 & 5.3.7 patch versions.

The latest two can be downloaded from Maven Central and it is recommended to upgrade your projects or just pull them transitively from respective latest Spring Boot patch versions!

The Release Candidate is available from the https://repo.spring.io/milestone/ repository:

compile 'org.springframework.integration:spring-integration-core:5.5.0-RC1'

Here is a highlight of changes made to Spring Integration 5.5 RC1 since previously announced Milestone 3…

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 2.3.10 has been released and is now available from Maven Central.

This release includes 78 bug fixes, documentation improvements, and dependency upgrades. Thanks to all those who have contributed with issue reports and pull requests.

How can you help?

If you're interested in helping out, check out the "ideal for contribution" tag in the issue repository. If you have general questions, please ask on stackoverflow.com using the spring-boot tag or chat with the community on Gitter.

Project Page | GitHub | Issues | Documentation | Stack Overflow | …

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 2.4.5 has been released and is now available from Maven Central.

This release includes 57 bug fixes, documentation improvements, and dependency upgrades. Thanks to all those who have contributed with issue reports and pull requests.

How can you help?

If you're interested in helping out, check out the "ideal for contribution" tag in the issue repository. If you have general questions, please ask on stackoverflow.com using the spring-boot tag or chat with the community on Gitter.

Project Page | GitHub | Issues | Documentation | Stack Overflow | …

Hi, Spring fans! Welcome to yet another installment of This Week in Spring! As usual, we've got a ton of stuff to get into so I won't dilly dally too much, but before I get to it I just wanted to remind you that I'll be joining JHipster and founder Microsoft Cloud Developer Advocate Julien Dubois on April 15th (two days from now!) to talk about Azure Spring Cloud: don't miss it!

• Spring Framework 5.3.6 and 5.2.14 available now
• A Bootiful Podcast: Ambassador Labs devrel director, InfoQ contributor, lifelong learner, and awesome human, and friend Daniel Bryant
• An interesting use case with Azure Spring Cloud and SwissRe
• Did you know that there are Bitcoin starters for Spring Boot?
• I did a talk, Reactive Spring, for the jLove conference a few weeks ago. You might dig it.
• Introducing Spring Cloud Square
• My team is hiring! Come work with me and we'll help make the world a better place, one Kubernetes production deploy at a time, at Tanzu.
• …

On behalf of the team, I’m pleased to announce a Spring Data double release: Neumann SR9 and 2020.0.8. Both releases ship with mostly bug fixes and dependency upgrades. The service releases will be picked up by the upcoming Spring Boot 2.3.10 and 2.4.5 releases, respectively. Finally, here are the links to the documentation, artifacts, and changelogs:

Neumann SR9

• Spring Data Commons 2.3.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data JDBC 2.0.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data JPA 2.3.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data for Apache Cassandra 3.0.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data MongoDB 3.0.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data Neo4j 5.3.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data KeyValue 2.3.9 - Artifacts - Javadoc - Documentation - Changelog
• Spring Data for Apache Geode 2.3.9 - Artifacts - Javadoc - Documentation - …

Dear Spring community,

On behalf of the Spring Data team and our contributors, it is my pleasure to announce that Spring Data 2021.0.0 (Codename: Pascal) is generally available from Maven Central. This release ships with features, bugfixes, and improvements that contain numerous version and driver upgrades. Note that Spring Data Solr is no longer part of the Spring Data Release Train.

This curated overview summarizes the most significant changes:

• Introduce deleteAllById for CrudRepository and ReactiveCrudRepository.
• Use Spring Core JFR (Java Flight Recorder) metrics.
• QueryByExample for R2DBC and Oracle.
• Enable type- and refactoring-safe use of KProperty and KPropertyPath for property path rendering.
• Embedded Document support & relaxed Aggregation type checks for MongoDB.
• Cassandra prepared statements.
• Repository projections & function execution for Apache Geode.
• Remove Spring Data Solr from release train.
• Support for jMolecules.
…

I am pleased to announce that Spring for Apache Kafka 2.7.0 is now available.

This release contains a significant enhancement, which is a community contribution. Failed deliveries can be forwarded to a series of topics for delayed redelivery.

It is best described with an example:

@RetryableTopic(attempts = "5", backoff = @Backoff(delay = 1000, multiplier = 2.0))
@KafkaListener(id = "sk270", topics = "sk270")
public void listen(String in, @Header(KafkaHeaders.RECEIVED_TOPIC) String topic) {
    LOG.info(in + " from " + topic);
    throw new RuntimeException("test");
}

@DltHandler
public void…