What is new and important mentioning?
I think it is:
Annotation-driven configuration
We can move more configuration to classes like @Autowired.
Autodetecting components in the classpath
like: @Component,
@Repository,
@Service,
@Controller. Mayby some. For prototyping when our configuration is simple.
New SimpleJdbcCall and
SimpleJdbcInsert.
Annotation-based controllers
New annotations @RequestMapping,
@RequestParam,
@ModelAttribute