Spring Framework 7 introduces built-in API versioning support, addressing a common need that previously required manual implementation. The feature provides essential building blocks, focusing on server and client-side handling. Server-side, the ApiVersionStrategy manages application versioning preferences, parsing and validating requests. Configuration occurs via MVC or WebFlux configurations, using properties for Spring Boot applications. Controllers utilize the version attribute in @RequestMapping and related annotations, while functional endpoints employ the version request predicate. Client-side, the ApiVersionInserter adds the API version to requests, allowing easy version specification. Testing capabilities are enhanced with support in RestTestClient, WebTestClient, and MockMvc. Deprecation hints can be configured through a deprecation handler. The framework includes support for semantic versioning and baseline versions, enhancing flexibility. For further details, the official documentation and a sample project are available for experimentation.