Spring / Spring7 Intermediate to Advanced Interview questions
What is the difference between Spring Framework 6 and Spring Framework 7?
Spring 6 and Spring 7 are both generational releases, but 7 builds a further layer of change on top of what 6 already introduced.
| Aspect | Spring 6 | Spring 7 |
| Jakarta EE | EE 9, later EE 10 | EE 11 (Servlet 6.1, JPA 3.2) |
| Java baseline | 17 (recommended up to 21) | 17 (recommended up to 25) |
| API versioning | No built-in support | Native version attribute |
| Null safety | Spring's own annotations | JSpecify annotations |
| Bean registration | @Bean / @Component only | Adds BeanRegistrar |
For most applications the upgrade is a moderate migration rather than a rewrite: the programming model (IoC, DI, MVC, AOP) is unchanged, but the baseline bumps and RestTemplate's deprecation mean dependency and client-code updates are unavoidable.
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