Why Spring Boot 2.4.0 May Break Your Spring Cloud Config – Risks & Recommendations
Spring Boot 2.4.0 introduces major configuration handling changes that can cause loading failures for Spring Cloud Config users, and because no compatible Spring Cloud release exists yet, it is currently advised not to upgrade to this version.
Earlier this year, Spring Boot released its final major update of the year: Spring Boot 2.4.0.
Community discussions have highlighted usage issues with Spring Boot 2.4, especially among Spring Cloud users eager to try the latest version, encountering problems most commonly related to configuration loading failures.
The release notes mention that Spring Boot 2.4 introduced significant changes to how configuration files are processed; simple use of application.properties or application.yaml still works seamlessly, but more complex configuration approaches may fail.
When using Spring Cloud Config to manage and load configurations, these changes can easily cause failures, and currently there is no Spring Cloud release that supports Spring Boot 2.4.x.
Consequently, for Spring Cloud users, it is not recommended to adopt Spring Boot 2.4.x at this time.
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Programmer DD
A tinkering programmer and author of "Spring Cloud Microservices in Action"
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