On behalf of the community, I am pleased to announce that the General Availability (RELEASE) of the Spring Cloud 2022.0.2 Release Train is available today. The release can be found in Maven Central. You can check out the 2022.0.2 release notes for more information.

Notable Changes in the 2022.0.2 Release Train

See all issues and pull requests included in this release here.

Spring Cloud Kubernetes

• Added support for external name services using the Fabric8 DiscoveryClient (#1243)
• Add Pod metadata and annotations to ServiceInstance (#1254)

Spring Cloud Contract

• Allow sendMessage to handle body from file (.1867)
• Relaxed SSL validation with RestTemplate interceptors (#1869)
…

This post is a part of a series:

1. The Basics
2. The bumpy road of Spring Cloud Sleuth
3. Unified Bridging between Reactive and Imperative

We concluded the last article with the thought that Spring Cloud Sleuth’s MANUAL context propagation strategy is both performant and provides correct semantics. Out of many experiences, the Spring, Micrometer, and Reactor teams created a new context-propagation library. Its goal is to encapsulate the concern of transporting contextual data between ThreadLocal values and Map-like structures. Both Micrometer 1.10 and Reactor 3.5 build on top of it to provide a first-class experience between Reactor and imperative code. By using Reactor Context, we implicitly expose ThreadLocal…

This post is a part of a series:

1. The Basics
2. The bumpy road of Spring Cloud Sleuth
3. Unified Bridging between Reactive and Imperative

Spring Cloud Sleuth recently became Micrometer Tracing, part of the Micrometer project. Most of the tracing instrumentation is centered within Micrometer under the new Observability API. The goal of these projects is to enable observability of any application – in the form of metrics, tracing, and logs that contain correlation identifiers. To achieve this goal, libraries require a way to transport contextual information. When applications deal with asynchrony in any form, that task becomes quite a challenge. In the previous article, we went through the basics of context propagation with …

Hi, Spring fans! Welcome to another installment of This Week in Spring! I'm reporting to you from Los Angeles, where my family and I have gone for my daughter's spring break. We're going to survey some prospective colleges and we're going to Disneyland. Needless to say, I'm doubly glad to have all this cool stuff to read this week; I can really savor each article! Let's dive in!

• Context Propagation with Project Reactor 1 - The Basics
• Introduction to Grafana Loki
• JDK 20 Release Notes
• Not Spring Boot, per se, but this is interesting if you're developing against Kubernetes and want a quick introduction: Lightweight Kubernetes Distributions
• Run a Spring Boot Application in AWS Lambda
• SAML with Spring Boot and Spring Security
• Spring Boot 2.7.10 available now
• Spring Integration for AWS 3.0.0-M2 and Spring Cloud Stream Kinesis Binder 4.0.0-M1 Available
• Spring Kafka: Configure Multiple Listeners on Same Topic
• Spring Modulith 0.5.1 released
• …

This post is a part of a series:

1. The Basics
2. The bumpy road of Spring Cloud Sleuth
3. Unified Bridging between Reactive and Imperative

Spring Boot 3 and Spring Framework 6 brought us a unified and consistent way to enable Observability in applications that use Micrometer. The evolution from Spring Cloud Sleuth to Micrometer, along with the Observation API and Micrometer Tracing, made us consolidate various approaches to context propagation. In this blog post series, we aim to explain how we came to support context propagation in Project Reactor to meet the needs of imperative libraries. By…

Dear Spring community,

Today I'm excited to share with you news that Spring Integration extension project for AWS and AWS Kinesis Binder for Spring Cloud Stream have finally been moved to AWS Java SDK v2, their respective milestones 3.0.0-M2 & 4.0.0-M1 are available from Spring Milestone repository.

I cannot tell that this was a pleasant work to do because it has turned to be not just a plain dependencies upgrade and namespace renaming. The whole AWS SDK API was changed to more modern Java style, including CompletableFuture composition and Stream API, lambda-style configuration, generated…

I'd like to announce the availability of Spring Modulith 0.5.1. The release primarily contains an important bug fix (the spring-modulith-runtime module accidentally contained a Logback configuration file only intended for test usage) and the usual upgrade to the latest Spring Boot version. Find more information in the full changelog, as well as reference documentation.

In case you are wondering about what the project is all about, Voxxed Days Zurich have published "Spring Modulith – Spring for Architecturally Curious Developers":

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.1.0-M2 has been released and is now available from https://repo.spring.io/milestone.

This release includes 81 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Auto-configuration for Spring Authorization Service
• Improved Testcontainers integration
• Improved auto-configuration for Spring for GraphQL

Please see the release notes for more details and upgrade instructions.

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

On behalf of the team and everyone who has contributed, I’m happy to announce that Spring for Apache Pulsar 0.2.0 has been released and is now available from Maven Central.

This is the second GA minor release of the framework. Although 0.2.0 still lives in the experimental Spring projects it is in the process of moving into the main Spring projects as follows:

• The core will move into spring-projects/spring-pulsar (targeting mid-April)
• The autoconfiguration will move into spring-projects/spring-boot (targeting the Spring Boot 3.2.0 release)
• The binder will move into spring-cloud/spring-cloud-stream (targeting the SCSt 4.1.0 release)
…