spring-projects/spring-framework v5.3.0-M1 on GitHub

⭐ New Features

Use @SafeVarargs in Jackson builder and factory #25311
Use JDBC 4 API for connection validation #25305
Reduce String creation in BeanPropertyRowMapper #25301
Align DispatcherServlet defaults for Java and XML #25260
Make DispatcherServlet.properties loading lazy #25257
Rollback reactive transaction on cancel #25256
Support multi-value X-Forwarded-Prefix headers #25254
Refactor method name dispatching to switch statements in AutowireUtils #25199
Disable and remove unsupported features from native images #25179
Refactor method name dispatching to switch statements #25170
Refactor method name dispatching to switch statements #25163
Provide a flag to disable SpEL support #25153
Provide a flag to disable XML support #25151
Allow customization of JPA EntityManager before use #25125
Make use of HttpServletMapping when available #25100
Add support for R2DBC #25065
Support configurable timeout in @transactional #25052
Use same default ClassLoader in SpringFactoriesLoader #24992
SpringFactoriesLoader should filter out duplicates #24985
DefaultResourceLoader's default constructor makes it easy to introduce a ClassLoader leak #24957
Reject "/path/**/other" patterns in PathPatternParser #24952
Support for PathPatternParser in Spring MVC #24945
Introduce ClientHttpConnector test suite #24941
Add file parameters as request parts in HtmlUnitRequestBuilder #24926
BeanNameAutoProxyCreator proxies the wrong beans when custom TargetSourceCreator specified #24915
Expose multipart data in ServerRequest #24909
VersionResourceResolver should use weak ETags to allow for HTTP compression #24898
Extend transaction attributes with labels #24890
Avoid using regex matching for static patterns #24887
Align TransactionManagementConfigurer support in TestContext framework with production #24869
Add Encoder and Decoder for Netty ByteBuf #24866
Allow setting SerializationInclusion with JsonInclude.Value #24824
ObjectProvider.ifAvailable throws exception for scoped bean without an active scope #24822
Wrap XMLStreamException in DecodingException #24778
Improve MediaType parsing performance #24769
Add BeanPostProcessors in bulk #24756
Integrate Apache Http client with WebClient #24700
Improve performance of AbstractAutowireCapableBeanFactory#predictBeanType #24681
Improve efficiency of mutating of ClientHttpResponse and ServerHttpRequest #24680
Support user-defined key type in JDBC KeyHolder #24655
PartsHttpMessageWriter introduced #24535
Support URI templates in RequestEntity #24406
Allow re-initialization of DataBinder to and from direct field or bean property access #24347
Add support for metadata push to RSocketRequester #24322
Support setting spring.test.constructor.autowire.mode via junit-platform.properties file #24285
Honor generic type information in BeanUtils.copyProperties() #24281
Fix behavior in ExceptionHandlerExceptionResolver.setResponseBodyAdvice #24204
Support for RxJava 3 #24170
Add Nullable to Joinpoint and MethodInterceptor #24117
DataSourceTransactionManager does not consider SQLExceptionTranslator on commit #24064
Turn off useSuffixPatternMatching by default #23915
Support matching against multiple header values in HeaderAssertions #23878
Multipart request support in MockRestServiceServer #23772
Enhanced form data request support in MockRestServiceServer #23671
Add support for X-Forwarded-For and Forwarded for #23582
@ExceptionHandler to keep nesting beyond the first cause #23380
Support separate annotation introspectors in Jackson2ObjectMapperBuilder #23017
Improve GraalVM native support #22968
Provide access to the WebSocket close status in WebFlux #22079
Make WebFlux multipart support fully Reactive [SPR-17122] #21659
Add iterable JDBC template to process large amount of data [SPR-13900] #18474

🪲 Bug fixes

AllEncompassingFormHttpMessageConverter now uses both JAXB and Jackson by default #25291
Align @RequestPart support in WebFlux with Spring MVC #22973

📔 Documentation

Fix obsolete link in Kotlin docs #25192
Switch to googlecode theme for syntax highlighting in reference manual #24865
fix WebRequest.checkNotModified docs #1035

🔨 Dependency upgrades

Upgrade to Gradle 6.5 #25180
Upgrade to Reactor 2020.0.0 M1 #25085
Upgrade to Dom4j 2.1.3 and Jaxen 1.2.0 #25078
Upgrade to Gradle 6.4 #25020
Upgrade to ASM 8.1 #24872
Upgrade to TestNG 7.1.0 #24298
Upgrade to Groovy 3.0 #24215
Upgrade to JUnit 4.13 #22894

❤️ Contributors

We’d like to thank all the contributors who worked on our current release!