spring-projects/spring-framework v5.3.0-RC2 on GitHub

⭐ New Features

Compatibility with Jackson 2.12 #25907
Loggers apparently constructed on a per HTTP request basis in reactive web code cause CPU overhead #25900
@ControllerAdvice order defined via @Order on a @Bean method is not applied #25872
Add missing awaitBodilessEntity and createExceptionAndAwait ClientResponse extensions #25866
Add Dependencies Manifest Entry to spring-core #25852
Subclasses of UrlBasedViewResolver could avoid reflection when creating instances of View #25847
Add option to disable Last-Modified handling when serving static resources #25845
FormHttpMessageConverter to preserve parameters from the input MediaType #25839
Request data binding fails for params with an empty array "[]" suffix #25836
Support for an async determination of status and headers with a WebMvc HandlerFunction #25828
Deprecate LiveBeansView #25820
MultipartFile[] required controller param, not throwing exception #25819
Optimize StringUtils trimLeading/Trailing methods #25810
Set the sameSite cookie attribute in ClientHttpResponse implementations #25785
Unable to change Clock for spring framework scheduling #25782
Resolve Principal argument only when not annotated #25780
Use the function endpoint, filter the handler function, and find that remoteAddress is null, params is empty #25776
Add kotlinx.serialization JSON support to Spring WebFlux #25771
Make path pattern optional in router functions #25752
Deprecate WebClient#exchange() and provide safer alternatives #25751
Easing the application of CORS default settings through the WebMvcConfigurer#corsConfigurer method #25716
Empty or blank required UUID header validation results in 200 response status #23939
Support suspending handler methods in Spring MVC #23611
Introduce Converter.andThen(...) #23379
Remove inefficiency in HttpStatus.series() #22366
Provide Gson/JSON-B MessageConverter for spring-messaging (aligned with spring-web) #21496
Discover test configuration on enclosing class for nested test class [SPR-15366] #19930

🪲 Bug Fixes

WebTestClient no longer captures the URI template #25854
Webflux Routing DSL's onError filters execute in unexpected order #25541
TransactionalOperator.executeAndAwait returns value too early #25007

📔 Documentation

Document DefaultPartHttpMessageReader #25827
Update WebFlux documentation with regards to logging appenders #25547
Upgrade to Asciidoctor Gradle plugin 3.x #24991

🔨 Dependency Upgrades

Upgrade to Kotlin Coroutines 1.4.0-M1 #25914
Upgrade to RSocket 1.1.0-RC1 #25898
Upgrade to Reactor 2020.0.0-RC2 #25884
Upgrade to Kotlin 1.4.10 #25779

❤️ Contributors

We'd like to thank all the contributors who worked on this release!