spring-projects/spring-framework v6.0.0-RC1 on GitHub

⭐ New Features

Add native support for ExceptionHandler and ProblemDetail #29297
Refine SQLErrorCodesFactory reachability on native images #29294
Refine BindingReflectionHintsRegistrar infrastructure #29279
Normalize URIs returned from FileSystemResource.getURI() #29275
Redesign AOT Processors #29266
Simplify TestRuntimeHintsRegistrar API #29264
UrlResource#getFilename() should return unencoded file name #29261
Add reflection hints for EmbeddedDatabaseFactory$EmbeddedDataSourceProxy#shutdown #29259
Change keyvalue name to http.url in server observations #29254
Code generator should not use reflection for protected artifacts #29253
Use MethodArgumentNotValidException for model attribute arguments #29251
Allow TestCompiler SourceFile to work with records #29236
Generate matching inner class for inner class configuration #29213
Kotlin functional config DSL should prevent beans to be registered twice in AOT-optimized contexts #29211
Allow BeanRegistration target to be any arbitrary class name #29207
Add support for Charset to value code generator #29186
Enable HTTP and HTTPS on native in spring-web module #29185
Optimize native footprint by avoiding using ModuleFinder.ofSystem() at runtime #29183
Introduce AotProcessor to invoke the AOT engine on an application #29181
Move TestCompiler to dedicated package #29175
Use java.nio and FileSystems to resolve files in PathMatchingResourcePatternResolver #29163
Replace ApplicationContextAotInitializer with an AotApplicationContextInitializer interface #29157
Enable default TestExecutionListeners in JUnit 4 and TestNG base test classes #29149
Support cglib generated classes with TestCompiler #29141
Infer AOT proxies created by ProxyFactoryBean #29097
HTTP interface client ignores @DateTimeFormat on path variable #29095
Integrate the Micrometer Context Propagation library #29056
Upgrade RestTemplate to HttpClient 5 #28925
Improve resource handling for empty files contained in jars #28850
Allow for external customization and i8n of the "detail" of an RFC 7807 response #28814
Revise CookieLocaleResolver to use ResponseCookie #28779
Optimize SpEL and property placeholder support for @Async qualifiers #28549
Customization for ObjectReader and ObjectWriter #28401
Improve exception message if MultipartParser can not find end of body #28067
Revisit AOT constructor and factory method resolution #27920
Support CBOR and Protobuf with Kotlin Serialization #27628
CGLIB does not allow packages to start with "java" #27622
Support comma-delimited list of origin patterns in @CrossOrigin #27606
Improve the fluency of the ResponseCreator API #27280
Support for problem details based on RFC 7807 #27052
Add fast-path for no-args constructor in BeanUtils.instantiateClass #24104
Resolve generic type in more complex scenarios #23418

🐞 Bug Fixes

Hints for CGLIB proxies are not consistently registered #29295
Ensure context caching works properly during AOT runtime in the TestContext framework #29289
AbstractJackson2Encoder encodes empty Flux to invalid JSON #29274
RuntimeHints accessors have inconsistent naming #29269
ClassPathResources with same absolute path and same ClassLoader should be equal #29263
HTTP URL KeyValue should provide entire request URL as a value #29257
Hints for cglib configuration classes are not registered with a valid name #29252
Add ConstantReadableJavaField caching in ConstantFieldSubstitutionProcessor #29250
StringUtils should parse locale strings without country but with variant #29248
Generated code does not take visibility of method if it is defined in a parent class #29245
RestTemplate Observation is started without a complete tracing context #29234
Fix Outcome KeyValues in HTTP observations #29232
HTTP ObservationConvention implementations miss contextualName #29231
Refine ConstantFieldSubstitutionProcessor error handling #29219
Align RuntimeHintsAgent behavior with GraalVM reflection changes #29205
Class meta-annotated with @Reflective and annotated with @RegisterReflectionForBinding is only processed by SimpleReflectiveProcessor #29193
Spring Web 6.0.0-M6 breaks Kotlin support for (De-)Serialization in some edge-cases #29192
BeanDefinitionMethodGenerator should not generate code in the javax package name #29123
CGLIB proxies are not used at runtime on @Configuration classes in AOT mode #29107
Remove call to requestCompleted in RequestMappingHandlerAdapter #29002

📔 Documentation

Document PartEvent API #29170
Switch to spring-asciidoctor-backends #29162
Improve Javadoc of BeanRegistrationAotProcessor to describe the "runtime replacement use case" #29126
Improve Javadoc of GeneratedMethods#add to describe naming conventions #28997

🔨 Dependency Upgrades

Update Reactor Netty 2.0 version to 2.0.0-SNAPSHOT #29247
Upgrade to ASM 9.4 #29305
Upgrade to Context Propagation 1.0.0-RC1 #29273
Upgrade to JUnit 5.9.1 #29179
Upgrade to Kotlin 1.7.20 #29225
Upgrade to Micrometer 1.10.0-RC1 #29241
Upgrade to Reactor 2022.0.0-RC1 #29268

❤️ Contributors

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