What’s New in Spring Cloud Hoxton RELEASE? Key Features and Migration Guide

Spring

community announced that Spring Cloud Hoxton RELEASE is officially available in Maven Central; see the Hoxton release notes for details.

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Hoxton.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

Major Changes in the Hoxton Release Series

Spring Cloud Hoxton.RELEASE

is based on Spring Boot 2.2.1.RELEASE.

Core components now include extensive Reactive support, emphasizing asynchronous processing.

New Documentation System with PDF

The Hoxton.RELEASE documentation features a new login page, a fresh theme, and single‑page, multi‑page, and PDF versions for easier use.

New Load Balancer Implementation

Spring Cloud Hoxton.RELEASE

is the first version that provides both blocking and non‑blocking load‑balancer client implementations, serving as a replacement for the now‑maintenance‑mode Netflix Ribbon.

To use the new BlockingLoadBalancerClient with RestTemplate, add a dependency on spring-cloud-loadbalancer.

Spring Cloud Gateway Changes

Support for ReactiveLoadBalancer.

RSocket module moved to Spring Cloud Incubator.

Provides a circuit‑breaker abstraction based on Spring Cloud CircuitBreaker.

Spring Cloud Netflix Changes

Added ReactiveDiscoveryClient service‑discovery client.

Refactored Hystrix implementation using the Spring Cloud Circuit Breaker API.

Added property to disable automatic configuration of Spring Cloud CircuitBreaker Hystrix.

Spring Cloud Config Updates

Supports AWS S3 as a configuration repository.

Provides plain‑text decryption functionality.

Spring Cloud Sleuth Enhancements

Added onLastOperator option to improve Reactor tracing performance.

Support for tracing calls to Redis, AWS SQS, and Quartz.

Spring Cloud Commons

The new load‑balancer implementation resides under the Spring Cloud Common project.

ReactiveDiscoveryClient Changes

Support added for Spring Cloud Cloudfoundry.

Support added for Spring Cloud Kubernetes.

Support added for Spring Cloud Netflix.

Support added for Spring Cloud Consul.

Support added for Spring Cloud Zookeeper.

Support added for Spring Cloud OpenFeign.