On behalf of the team and everyone that contributed, I am pleased to announce that the first milestone of Spring Boot 2.4 has been released and is available from our milestone repository. This release closes over 120 issues and pull requests.

Please note the slight change in the format of the version. 2.4.0-M1 is the first Spring Boot release to use the new versioning scheme.

With Spring Boot 2.4, we have switched to a 6-month release cadence. All being well, you can expect to see 2.4.0 reach general availability in October or November.

Highlights of this first milestone include:

• Preliminary support for JDK 15
• Spring Batch 4.3 M1
• Spring Data 2020.0 M1
• Spring Framework 5.3 M1
• Spring Security 5.4 M1
• Filtered metric scraping with Prometheus
• Numerous other dependency upgrades
…

On behalf of the Spring Batch team, I am pleased to announce that Spring Batch 4.3.0-M1 is now available from our milestone repository.

What’s new?

This release is packed with new features, performance improvements, and bug fixes, as well as documentation and dependency updates! You can find the complete list of changes in the release notes, but here are the major highlights:

New features

1. New synchronized ItemStreamWriter

Similar to the SynchronizedItemStreamReader, we added a SynchronizedItemStreamWriter. This feature is useful in multi-threaded steps where concurrent threads need to be…

Dear Spring community,

On behalf of the team and everyone who contributed, it is my pleasure to announce that Spring Framework 5.3 M1 is available from our milestone repository now! Find an initial list of new features and refinements and corresponding upgrade notes including several deprecations on our wiki.

Please note that 5.3 is designed as the final 5.x feature release, wrapping up the major themes in the Spring Framework 5 generation, in particular reactive programming and Kotlin support, while also taking GraalVM compatibility to the next level. Last but not least, we are not only…

On behalf of the Spring Data team, I’m happy to announce the first milestone of the 2020.0 (Code name "Ockham") release train, 2020.0.0-M1. This release ships with over 120 tickets fixed. This Spring Data release is the first release using calver as an update to the release train version scheme.

The most notable new features are:

• Support for RxJava 3
• Introduction of org.springframework.data:spring-data-bom, which replaces org.springframework.data:spring-data-releasetrain

You can find a curated changelog in our release train wiki or skim through a full list of changes in JIRA.

A second…

Hi Spring fans! In this installment Josh Long (@starbuxman) talks to Wavefront co-founder and VMware Principal Engineer Clement Pang (@panghy).

Hi, Spring fans! What a week it's been! Tomorrow I'll be presenting a webinar on the easy integration between Spring Boot and Tanzu Wavefront. Wavefront is an all-in-one, integrated distributed tracing metrics analytics observability platform. Join us tomorrow to learn about observability, about Wavefront, and their integration in the Spring ecosystem with Spring Cloud Sleuth and Micrometer, among other things.

We've so many great things to look at this week so let's get to it!

• Spring Tools 4.7.0 released
• A Bootiful Podcast: Nisha Kumar and Rose Judge on the Linux Foundation's project Tern
• What's new in Spring Boot 2.3
• Getting Started With RSocket: Spring Security
• Spring Tips: Spring and Graal (pt. 2)
• Spring Boot for Apache Geode & VMware GemFire 1.1.8.RELEASE and 1.2.8.RELEASE available!
• Julien Dubois on an Azure Native Function with Spring Cloud Function
• VMworld 2020 Digital Edition
• I love this Spring Data JDBC example demonstrating an integration with JOOQ.
• Check out the rewritten getting started guide on using Spring Data JPA with Azure Database for MySQL
• A great post on Okta Developer: Angular, Docker with a Big Hug from Spring Boot …

Hi, Spring fans! In this installment Josh Long (@starbuxman) talks to Nisha Kumar and Rose Judge who work on the Linux Foundation's project Tern.

• Tern from the Linux Foundation
• Shift Left testing
• SPDX
• A Maven plugin supporting SPDX

Dear Spring Community,

I am happy to announce the 4.7.0 release of the Spring Tools 4 for Eclipse, Visual Studio Code, and Theia.

Highlights from this release include:

• (Spring Boot) bugfix: automatic live hover detection works again reliably
• (Eclipse) update: Spring Tools 4 for Eclipse distribution updated to Eclipse 2020-06 release
• (Eclipse) improvement: added support for multiple instances of symbols view
• (Eclipse) improvement: added favorites dropdown to symbols view
• (Eclipse) improvement: boot dashboard shows request mappings, beans, and the environment of running apps now if SSH tunnel is enabled for the app on CF
• (Eclipse) update: Support SemVer format in Spring Initializr wizard (#473)
• (Eclipse) bugfix: STS 4.6.2 and Eclipse 2020-06 RC1: FrameworkEvent ERROR (#477…

Speaker: Phil Webb (@phillip_webb)

Timecodes

Use the timecodes below if you want to jump to a specific part of the presentation:

• 00:27 - Intro
• 01:59 - Creating the Demo
• 04:01 - Building Docker Images with the Spring Boot Plugin
• 09:21 - Building Docker Images with a Dockerfile
• 16:40 - Customizing Layers
• 21:38 - Graceful Shutdown
• 25:19 - Kubernetes Probes
• 30:55 - Configuration Properties End-to-End Traceability
• 33:00 - Wrap-up and Upgrade Gotchas

Links

The following links are referenced in the presentation:

• Building OCI Images [Maven|Gradle]
• Packaging Layered Jars [Maven|Gradle]
• Customizing Layers [Maven|Gradle]
• Writing a Dockerfile
• Release Notes
• Contributing Instructions
…