Spring Framework 7.0's fourth milestone (M4) introduces several key improvements. It leverages Java 24's new Class-File API for enhanced bytecode reading, offering a transparent upgrade for Java 24+ applications. A new OptionalToObjectConverter simplifies handling Optional objects, particularly in SpEL expressions. M4 significantly enhances HTTP interface client support, introducing a registry for easier management of numerous HTTP service proxies. This aims to improve Spring Boot, Spring Cloud, and Spring Cloud OpenFeign integration. The API versioning feature receives updates including client-side and testing support. Comprehensive upgrade notes and a changelog detail all changes. M4 is available on Spring's repository and Maven Central. This release focuses on refining existing features and addressing community feedback. The team encourages users to review the documentation for detailed information and upgrade considerations.