Changelogs: - [ ] https://spring.io/blog/2025/07/24/spring-boot-4-0-0-M1-available-now - [ ] https://spring.io/blog/2025/08/21/spring-boot-4-0-0-M2-available-now - [ ] https://spring.io/blog/2025/09/18/spring-boot-4-0-0-M3-available-now Should be done after #1740
