What’s New in Spring Boot 2.3.3? Features, Fixes, and Dependency Upgrades

Spring Boot 2.3.3 has been officially released and is available from repo.spring.io and Maven Central.

<code><parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>2.3.3.RELEASE</version>
  <relativePath/> <!-- lookup parent from repository -->
</parent></code>

This release includes 67 bug fixes, enhancements, documentation improvements, and dependency upgrades.

New Features

Jetty for HTTP/2 no longer forces the use of Conscrypt #22188

Bug Fixes

External configuration now ignores empty values in SPRING_APPLICATION_JSON #22895

Old version upgrades warn when endpoint IDs contain “-” #21615

Reactor debug agent failure reasons are now retained when initialization fails #22847

OCI image build fails when environment context contains empty properties #22703

Liquibase endpoint no longer hides parent change information #22686

Multiple ServletRegistration entries could cause 404 errors #22682

WAR deployments cannot handle async request exceptions #22672

Task builder configuration wait timeout precision limited to seconds #22611

SpyBean tests may create multiple contexts #22583

WebMvcTest and WebFluxTest now include Jackson modules #22576

CacheManagerCustomizer cannot customize CouchbaseCacheManager #22573

Kubernetes readiness probe endpoint returns 404 #22562

Dependency Upgrades

Micrometer 1.5.4

Spring Security 5.3.4.RELEASE

Spring HATEOAS 1.1.1.RELEASE

RSocket 1.0.2

Pooled JMS 1.1.2

Lettuce 5.3.3.RELEASE

Kafka 2.5.1

jOOQ 3.13.4

Jetty 9.4.31.v20200723

Jackson Bom 2.11.2

Hibernate 5.4.20.Final

Dropwizard Metrics 4.1.12.1

Dependency Management Plugin 1.0.10.RELEASE

Couchbase Client 3.0.7

Commons Pool2 2.8.1

Byte Buddy 1.10.14

Spring Data Neumann SR3

Spring Kafka 2.5.5

Spring AMQP 2.2.10

Reactor Dysprosium-SR11

For more details, see the GitHub repository.