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Creating Efficient Docker Images with Spring Boot 2.3

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A Bootiful Podcast: RSocket everywhere and Maciej Walkowiak on Spring Cloud AWS

Hi, Spring fans! In this installment Josh Long (@starbuxman) has RSocket on the brain with his latest talk, RSocket Revolution, the new RSocket chapter in his book Reactive Spring, and the work he’s doing on Spring Retrosocket, a declarative Feign-like RSocket client. Then, Josh talks to Spring ecosystem luminary Maciej Walkowiak (@maciejwalkowiak) about what he’s doing at the helm of Spring Cloud AWS.

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Config file processing in Spring Boot 2.4

Spring Boot 2.4.0.M2 has just been released, and it brings with it some interesting changes to the way that application.properties and application.yml files are loaded.

If your applications use the fairly typical setup of only using a single application.properties or application.yml file, then you’ll probably not notice any difference. If, however, you have applications that use more complex setups (such as profile specific properties), you might want to read on to learn about what we’ve changed and why.

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Spring Boot 2.4.0-M2 is now available

On behalf of the team and everyone that contributed, I am pleased to announce that the second milestone of Spring Boot 2.4 has been released and is available from our milestone repository. This release closes just over 250 issues and pull requests.

If you’re trying this release with an existing Spring Boot 2.3 project, please note the slight change in the format of the version. 2.4.0-M2 is using our new versioning scheme.

Highlights of this second milestone include:

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Spring Security 5.4.0-RC1 Released

On behalf of the community, I’m pleased to announce the release of Spring Security 5.4.0-RC1! You can find the complete details in the release notes and the highlights below:

OAuth 2.0

gh-8903 - Allow for custom ClientRegistration.clientAuthenticationMethod
gh-6489 - Simplify retrieving Introspection-specific attributes

Web

gh-8804 - Remove need for WebSecurityConfigurerAdapter
gh-8599 - Reactive SwitchUserWebFilter for user impersonation
gh-8854 - Add AuthenticationConverterServerWebExchangeMatcher
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Spring Boot 2.3.3 available now

On behalf of the team and everyone who has contributed, I’m happy to announce that Spring Boot 2.3.3 has been released and is now available from repo.spring.io and Maven Central.

This release includes 67 bug fixes, enhancements, 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.

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Spring Batch 4.3.0-M2 is out!

On behalf of the Spring Batch team, I am pleased to announce that Spring Batch 4.3.0-M2 is now available from our milestone repository.

What’s new?

This release comes with a number of new features and enhancements that you can find in the release notes, but here are the major highlights:

1. Kafka support enhancements

By default, the KafkaItemReader reads a topic from the beginning. When we initially introduced this reader in v4.2, it was not possible to configure it to read records from a custom offset. In this release, we added this feature. As a result of this addition, it is now possible to configure the reader to start from the offset stored in Kafka.

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Premiering: The RSocket Revolution

Hi, Spring fans! I have been developing a new talk and I finally got a chance to do a pre-recorded version of it for a keynote for a conference (in China) recently, and want to share the content with you all, so I’m premiering it here, too. This talk, The RSocket Revolution, is about 38 minutes and looks at:

  • some of the new features in Spring Boot 2.3x including GraalVM-capable native images
  • the basics of RSocket
  • fundamentals with RSocket @Controllers in Spring Framework
  • Toshiaki Maki’s fantastic rsc RSocket client
  • Declarative, Feign-like clients with Spring Retrosocket
  • The RSocketRequester to support making requests of RSocket services on the JVM
  • Spring Integration’s reactive and RSocket support
  • Bidirectional communication - where both client and service separately initiate the communication - using RSocket
  • Securing RSocket endpoints with Spring Security and RSocket metadata
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Spring Integration 5.4 M2 Available

Dear Spring community,

On behalf of the team and everyone who contributed, it is my pleasure to announce the second milestone for Spring Integration 5.4 generation.

It can be downloaded from our milestone repository:

compile 'org.springframework.integration:spring-integration-core:5.4.0-M2'

This version continues a story since milestone 1 for aggressive dependencies upgrades and deprecation removals, including legacy metrics.

Some key highlights in this milestone alongside with the number of bugfixes and refactorings:

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