Spring Boot 3.0.4 Release: Key Bug Fixes, Docs Updates, and Dependency Upgrades
Spring Boot 3.0.4 arrives early, addressing a PathMatchingResourcePatternResolver issue that broke bean and controller scanning, and brings 19 bug fixes, documentation enhancements for Gradle 8 and other topics, plus numerous dependency upgrades across Couchbase, Jetty, Reactor, Spring Framework, and more.
Spring Boot 3.0.4 has been released earlier than planned. In Spring Framework 6.0.5 the PathMatchingResourcePatternResolver can no longer handle paths containing spaces or special characters, which broke bean and controller scanning.
Project directories with Chinese characters or spaces are a major no‑no—pay attention!
🐞 Bug Fixes
Maven plugin now uses the local timezone for timestamps (#34430).
Correct logger class usage for org.springframework.boot.web.embedded.jetty.GracefulShutdown (#34419). @ConfigurationProperties no longer binds record property values during initialization (#34407).
Custom ConfigDataLocationResolver / ConfigDataLoader works with spring-boot-devtools in 3.0.x (#34372). defaultTracingObservationHandler sorted according to documentation (#34216).
Spring Boot 3 does not provide configuration for custom red metrics tag keys (#34194).
📔 Documentation
Added documentation support for Gradle 8 (#34462).
Batch update processing documentation improvements (#34437).
Added connection details for the Failover starter (#34422).
Fixed typo in external-config.adoc (#34414).
General typo fixes (#34398).
Consistent use of the plugin DSL in Spring Boot Gradle plugin docs (#34391).
🔨 Dependency Upgrades
Upgraded to Couchbase Client 3.4.3 (#34445).
Upgraded to Dropwizard Metrics 4.2.17 (#34446).
Upgraded to Jetty 11.0.14 (#34447).
Upgraded to Reactor Bom 2022.0.4 (#34444).
Upgraded to Spring Data Bom 2022.0.3 (#34439).
Upgraded to Spring Framework 6.0.6 (#34440).
Upgraded to Spring Kafka 3.0.4 (#34441).
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Programmer DD
A tinkering programmer and author of "Spring Cloud Microservices in Action"
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