Currently, I am in the process of migrating Spring Boot from 3.5 to Spring Boot 4.0. Since project will undergo too many changes, as an intermediate step opted for Spring Boot 4 + Jackson 2 approach as suggested in migration guide. https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-4.0-Migration-Guide Now, with Spring Cloud Stream 5.0.1 dependency I am blocked with migration.