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This Week in Spring - October 30th, 2018

Hi Spring fans! Welcome to another installment of This Week in Spring! This week I’m in Paris, France, for the amazing Voxxed Microservices event. This has been quite the show and I’m grateful for having had the opportunity to be there. Now, as I write this, I’m preparing to go to Beijing, China, for the first leg in Asia of the SpringOne Tour show. I’ll be in China, then Japan, then Korea, Singapore, Hong Kong, Taiwan, Los Angeles, Morocco, Seattle, Toronto, and then finally - in mid December - I’ll return home to San Francisco. We’ve got a ton of things to look at this week so, without further ado…

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Spring Cloud Stream Fishtown.RC1 /2.1.0.RC1 Release Announcement

We are pleased to announce the first Release Candidate of the Spring Cloud Stream Fishtown release train - Fishtown.RC1/2.1.0.RC1.

Spring Cloud Stream Fishtown 2.1.0.RC1 is available for use in the Spring Milestone repository.

The following section provides a brief summary of features and improvements included in this release.

Notable Dependency Upgrades

  • Spring Boot 2.1.0.RC1
  • Reactor Californium.RELEASE
  • Spring Cloud Function 2.1.0.RC1

Spring Cloud Function support

The main theme for this release is the introduction of a new programming model which uses Spring Cloud Function as an alternative for defining stream handlers and sources which can now be expressed as beans of
type java.util.function.[Supplier/Function/Consumer]

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Spring Boot 2.1.0

On behalf of the Spring Boot team and everyone that has contributed, it’s my pleasure to announce that Spring Boot 2.1.0 has been released and is available now from repo.spring.io, Maven Central and Bintray. This release adds a significant number of new features and improvements. For full upgrade instructions and new and noteworthy features please see the release notes.

What’s new in 2.1

Third-party library upgrades

We’ve upgraded to the latest stable releases of other third-party libraries wherever possible. Some notable dependency upgrades in this release include:

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Spring Batch 4.1 goes GA!

I am pleased to announce that Spring Batch 4.1.0.RELEASE is now available.

What’s New in Spring Batch 4.1 GA

This release adds the following features:

  • A new @SpringBatchTest annotation to simplify testing batch components
  • A new @EnableBatchIntegration annotation to simplify remote chunking and partitioning configuration
  • Support for reading and writing data in JSON format
  • Support for validating items with the Bean Validation API
  • Support for JSR-305 annotations
  • Enhancements to the FlatFileItemWriterBuilder API
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Spring Integration 5.1 goes GA!

On behalf of Spring Integration team I am pleased to announce that the 5.1.0.RELEASE for the Spring Integration is available.

It can be downloaded from Maven Central, JCenter, and our release repository:

compile "org.springframework.integration:spring-integration-core:5.1.0.RELEASE"

First of all I would like to thank all community members for their ongoing active contributions to the framework!

Besides the regular dependencies upgrades, bug fixes and internal performance improvements here are some notable new features introduced in this version:

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Spring for Apache Kafka 2.2 Released

I am pleased to announce that Spring for Apache Kafka 2.2.0.RELEASE is now available.

While the 2.1.x release is compatible with the 2.0.0 kafka-clients jar, (since 2.1.9), this version requires 2.0.0 (and provides a 2.0.0 embedded broker for testing).

Highlights

  • The SeekToCurrentErrorHandler can now "skip" records that fail repeatedly

  • Such "skipped" records can be published to a dead-letter topic (or otherwise disposed of by application code)

    • Headers are added with diagnostics about the failure

  • When using transactions, the same functionality can be achieved with the default AfterRollbackProcessor

  • You can now use the listener container factory to create any arbitrary listener container, not just containers for @KafkaListener s

    • This allows more convenient use of Spring Boot’s auto configuration properties for any container

  • @KafkaListener annotations can now override the container factory’s concurrency and autoStartup properties

  • The new ErrorhandlingDeserializer can catch deserialization exceptions which are then routed to the ErrorHandler

  • The embedded kafka broker can now be used with JUnit 5 tests

For more information see the What’s New chapter in the documentation and the change log.

In addition, Spring Integration for Apache Kafka (spring-integration-kafka) 3.1.0.RELEASE is available; it is based on Spring for Apache Kafka 2.2 and Spring Integration 5.1.

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Spring Data Lovelace SR2 released

On behalf of the Spring Data team, I’d like to announce the availability of the Lovelace SR2 maintenance release. This release builds on the just-released Spring Framework 5.1.2 service release. Lovelace SR2 is the version that you will get with Spring Boot 2.1 GA that is scheduled for the next few days. If you use Spring Boot 2.0.x and want to consume this service release, you can set the version property (spring-data-releasetrain.version) to Lovelace-SR2.

This service releases ships with 32 tickets fixed.

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Announcing Spring Cloud Function - 2.0.0.RC1

We are pleased to announce the first Release Candidate of the Spring Cloud Function - 2.0.0.RC1.

Individual modules of Spring Cloud Function 2.0.0.RC1 are available for use in the Spring Milestone repository.

Aside form general enhancements and bug fixes, This release encompasses the following:

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