• Make BeanDefinitionPropertyValueCodeGeneratorDelegates public #34761
• Add AOT support for Registry of HTTP Interface Proxies #34750
• Make HttpServiceGroupConfigurer extend Ordered. #34739
• Introduce queryParamCount() in MockRestRequestMatchers #34703
• Add method level callback for HttpRequestValues initialization #34699
• Refine UriUtils#decode and StringUtils#uriDecode implementation and documentation #34673
• Add visibility and return type to SimpleMethodMetadata toString #34649
• Revise RepeatableContainers API to better guide developers #34637
• Extract AnnotatedElementAdapter to public type #34628
• Add support for ImportAware in BeanRegistrar #34627
• Introduce Stream variant methods for SqlQuery #34623
• Generate compiled SpEL expressions using Java 17 byte code level #34602
• Allow adding bean name aliases in the programmatic bean registration DSL #34599
• Support API Versioning in Tests #34568
• Support API Versioning on the Client Side #34567
• Propagate CoroutineContext to the CoExchangeFilterFunction #34555
• Introduce OptionalToObjectConverter #34544
• Create Registry for HTTP Interface Proxies with Extensible Registration DSL #33992
• Reconsider log level for final methods on CGLIB proxy classes #33939
• Enforce Servlet 6.1 and WebSocket 2.2 baselines #33918
• Consider ClassFile API for reading class metadata from bytecode #33616
• Give JdbcClient access to ConversionService for converting custom database object types #33467
• Consider not rejecting preflight requests when no CORS configuration is provided #31839

• Turn "CDS" documentation into a "JVM AOT cache" one #34700
• Document that attribute is optional in @⁠AliasFor for overrides with the same name #34641
• Reinstate links to JUnit 5 Javadoc APIs #27497

• Upgrade to AspectJ 1.9.24 #34752
• Upgrade to Gson 2.13.0 #34772
• Upgrade to Kotlin 2.1.20 #34632
• Upgrade to Micrometer 1.15.0-RC1 #34771
• Upgrade to Reactor 2025.0.0-M2 #34770

Thank you to all the contributors who worked on this release:

@OlgaMaciaszek, @Tussle0410, @dmitrysulman, @kilink, and @quaff

• An option for SimpleAsyncTaskExecutor to throw an exception when limit is reached #34727
• Provide first-class support for Bean Overrides with @ContextHierarchy #34723
• Micro performance optimizations #34717
• Suppress "Unable to rollback against JDBC Connection" in case of timeout (connection closed) #34714
• Avoid early FactoryBean instantiation for type-based retrieval with includeNonSingletons=false and allowEagerInit=true #34710
• ReactiveCachingHandler still not using error handler on sync cache. #34708
• Add an exchangeForRequiredValue variant to RestClient #34692
• Recursively boxing Kotlin nested value classes in CoroutinesUtils #34682
• ServletServerHttpRequest does not use charset parameter of application/x-www-form-urlencoded #34675
• LifecycleGroup concurrent start and start timeout #34634
• HibernateJpaDialect exception translation misses concrete exceptions wrapped in Hibernate's ExecutionException #34633

• Inconsistency in SseEmitter.onCompletion() behavior between Spring 6.2.3 and 6.2.5 #34762
• Deadlock while creating Spring beans with parallel bootstrap threads on IBM Liberty #34729
• PropertyBatchUpdateException: causes of nested PropertyAccessExceptions not shown in output #34691
• IllegalAccessError for package-private member of AzureStorageConfiguration on WebSphere #34684
• Change in Jar usecache behavior with Spring 6.1.x causing java.lang.IllegalStateException: zip file closed #34678
• Startup performance regression due to CGLIB class load attempts in Spring 6.1.x #34677
• An infinite wait on a parallel context.getBean() #34672
• InvalidObservationException: Invalid start: Observation 'http.client.requests' has already been started #34671
• @Configuration classes can no longer be abstract without @Bean methods #34663
• Generated-code for LinkedHashMap is missing static keyword #34659
• Detect late-set primary markers for autowiring shortcut algorithm #34658
• @MockitoBean with custom @Qualifier is not injected into @Configuration class #34646
• Qualifier Resolution Issue in Parent-Child Context Hierarchies #34644
• Enforced container-level acknowledge call for custom acknowledgement mode #34635
• UriComponentsBuilder does not treat a URN as opaque if it contains a slash #34588
• Migrating from Spring 6.1.x to 6.2.x leads to exceptions in a Pekko setup #34303

• Update Javadoc for ignoreDependencyInterface() in AbstractAutowireCapableBeanFactory #34747
• Update Javadoc to stop mentioning 5.3.x as the status quo #34740
• Fix broken link for Server-Sent Events #34705
• Fix typo in Bean Validation section of reference manual #34686
• Remove unnecessary closing curly brackets in Javadoc #34679
• Add javadoc notes on potential exception suppression in ListableBeanFactory#getBeansOfType #34629
• Remove remaining references to Forwarded headers in MvcUriComponentsBuilder #34625

Thank you to all the contributors who worked on this release:

@acktsap, @dmitrysulman, @iggzq, @izeye, @ngocnhan-tran1996, @obourgain, and @tobias-haenel

• Suggest compilation with -parameters when AspectJAdviceParameterNameDiscoverer fails against ambiguity #34618

• PropertyBatchUpdateException: causes of nested PropertyAccessExceptions not shown in output #34698
• Change in Jar usecache behavior with Spring 6.1.x causing java.lang.IllegalStateException: zip file closed #34694
• Startup performance regression due to CGLIB class load attempts in Spring 6.1.x #34693
• IllegalAccessError for package-private member of AzureStorageConfiguration on WebSphere #34690
• @Configuration classes can no longer be abstract without @Bean methods #34689
• Generated-code for LinkedHashMap is missing static keyword #34661
• AbstractReactiveTransactionManager throws IllegalStateException when rollback fails after commit attempt #34619

• Add javadoc notes on potential exception suppression in ListableBeanFactory#getBeansOfType #34631
• Remove remaining references to Forwarded headers in MvcUriComponentsBuilder #34626
• MvcUriComponentsBuilder javadocs inaccurately reflects usage of forwarded headers #34620

• Make dependencies on AssertJ and JUnit in spring-core-test optional #34612
• Suggest compilation with -parameters when AspectJAdviceParameterNameDiscoverer fails against ambiguity #34609
• SseBuilder in ServerResponse should allow empty comment #34608
• MockServerWebExchange does not allow setting the ApplicationContext on the base class #34601
• FormHttpMessageConverter should throw HttpMessageNotReadableException when the http form data is invalid #34594
• Provide a method to retrieve all singleton autowire candidates from the bean factory #34591

• PathMatchingResourcePatternResolver regression for jar root scanning in 6.2.4 #34607
• AbstractReactiveTransactionManager throws IllegalStateException when rollback fails after commit attempt #34595
• Recursively boxing/unboxing nested inline value classes #34592

• MvcUriComponentsBuilder javadocs inaccurately reflects usage of forwarded headers #34615
• Fix formatting and update links to scripting libraries and HDIV #34603
• Remove dubious link to MockObjects Web site in reference manual #34593
• Fix StringUtils#uriDecode Javadoc #34590

• Upgrade to ASM 9.8 (for early Java 25 support) #34600

Thank you to all the contributors who worked on this release:

@Helmsdown, @dmitrysulman, and @ngocnhan-tran1996

• First-class support for BeanRegistrar registration on GenericApplicationContext #34574
• Support API Versioning in Request Mappings #34566
• Remove support for Aware interfaces in BeanRegistrar #34562
• Add support for target type to BeanRegistry #34560
• Allow chained BeanRegistry registration #34557
• Remove deprecated rowsExpected property of SqlQuery #34530
• Upgrade NullAway to 0.12.4 #34525
• Improve SimpleKey hashing function #34483
• Revisit MockHttpServletResponse after Servlet API clarifications #34467
• Refine Kotlin serialization converters/codecs conditions #34438
• Support open polymorphism with Kotlin Serialization #34433
• SseEmitter IOException on HTTP Connection Close #33832
• Remove convention-based annotation attribute override support #28761
• Support Optional with null-safe and Elvis operators in SpEL expressions #20433
• Programmatic bean registration with configuration classes #18353

• Upgrade match check in WebSocketHandlerMapping does not work if handler mapped to "/*" #34503

• Refine Kotlin serialization reference documentation #34437

• Upgrade to Reactor 2025.0.0-M1 #34577

Thank you to all the contributors who worked on this release:

@pankratz76, @philwebb, and @quaff

• JettyCoreHttpHandlerAdapter compatibility with Jetty 12.0.17 #34561
• HandlerMethodValidationException.Visitor should support RequestBody with method parameter constraints #34549
• Allow ContentResultMatchersDsl matchers for supertypes of the checked type #34542
• Avoid JarURLConnection resource leak in AbstractFileResolvingResource.exists() #34528
• Deprecate rowsExpected property of SqlQuery for removal #34526
• Supply RuntimeHints to an AotContextLoader #34513
• Deprecate and remove use of UrlPathHelper in ServletWebSocketHandlerRegistry #34508
• Avoid unnecessary CGLIB processing on configuration classes #34486
• Inconsistent default class loaders in hint classes #34470
• Add missing converters to DefaultRestClientBuilder #34439
• Improve BeanFactory/ObjectProvider to select the only one default candidate among non-default candidates #34432

• MockCookie.parse() fails to parse custom attribute with a value #34575
• BeanNotOfRequiredTypeException if @Bean factory method returns null #34543
• Regression in 6.2.3: No unique bean available for injection point with unresolvable generics #34541
• GenericConversionService cannot find a converter when converting to a Kotlin list of maps #34535
• isClientDisconnectedException needs to protect against null input #34533
• spring boot 3.4.3 + TimedAspect causes thread to hang #34522
• Missing Partitioned cookie support in reactive HTTP clients #34521
• DefaultManagedTaskExecutor throws java.lang.UnsupportedOperationException: isShutdown when rejecting tasks #34514
• FileSystemResource location does not end with slash for RouterFunction check #34509
• AbstractJackson2HttpMessageConverter not resolving generic type for request body since 6.2.3 #34504
• Request param handling in HttpRequestValues overrides existing URI variables with same name #34499
• MockHttpServletResponse - handle multiple values for Content-Language header #34488
• Endless loop with DataSourceUtils in spring-jdbc #34484
• MockHttpServletResponse#setHeader does not remove header for null values #34464
• ContentCachingResponseWrapper.setHeader does not handle null value properly. #34460
• Component scan fails to find bean candidates in the embedded jar file in META-INF/context.xml for embedded Tomcat application #34446
• 6.2.0 broke with "Could not register object [@someHash] under bean name 'blabla': there is already object [@sameHash] bound" #34427
• 503 status code after completing SseEmitter in onTimeout #34426
• NullPointerException thrown when ConfigurationClassEnhancer creates CGLIB proxy #34423
• Add onRequest() hook for propagating request from downstream #34388
• Content-Type response header duplicated for failed StreamingResponseBody return value #34366
• Task scheduler configured by XML is not eligible for getting processed by all BeanPostProcessors #34015

• Fix typo in Spring MVC error responses documentation #34552
• Document that Spring Framework 6.x does not yet support JSpecify annotations #34551
• Fix web and webflux reference links #34517
• Document default KeyGenerator in spring-cache XSD #34468
• Fix broken antora task #34454
• Add @since tag for formField() and formFields in MockHttpServletRequestDsl #34448
• Improve Javadoc of ObjectProvider to clarify what is unique #34447
• rest-http-interface example code can't run #34443
• Add Javadoc since for HandlerMethod(HandlerMethod, Object, boolean) #34431
• Document wrapping behavior of TestExecutionListener callbacks #34422
• Cross reference annotation search APIs in Javadoc #34421

• Upgrade to Micrometer 1.14.5 #34580
• Upgrade to Reactor 2024.0.4 #34578

Thank you to all the contributors who worked on this release:

@chenggangpro, @dark2momo, @dmitrysulman, @izeye, @ngocnhan-tran1996, @pankratz76, @quaff, @ryanprayogo, and @vpavic

• Avoid unnecessary CGLIB processing on configuration classes #34487
• Inconsistent default class loaders in hint classes #34473

• DefaultManagedTaskExecutor throws java.lang.UnsupportedOperationException: isShutdown when rejecting tasks #34515
• Endless loop with DataSourceUtils in spring-jdbc #34497
• MockHttpServletResponse - handle multiple values for Content-Language header #34491
• MockHttpServletResponse#setHeader does not remove header for null values #34466
• ContentCachingResponseWrapper.setHeader does not handle null value properly. #34465
• Task scheduler configured by XML is not eligible for getting processed by all BeanPostProcessors #34436
• NullPointerException thrown when ConfigurationClassEnhancer creates CGLIB proxy #34425

• Fix broken antora task #34455

• Upgrade to Reactor 2023.0.16 #34579

• Consider Kotlinx Serialization for JSON as a Jackson/Gson/Jsonb equivalent #34410
• Improve AnnotatedMethod#equals and HandlerMethod CORS lookups #34375
• Stop using explicitly aliased value attribute as @Component name #34346
• Remove Netty 5 support #34345
• Refine GenericApplicationContext#registerBean nullness #34343
• Add HttpHeaders copy factory method #34341
• StandardWebSocketClient should not expose localAddress #34331
• HierarchicalUriComponents should format Collection URI var values in query param #34311
• Consistent formatting of IPv6 host in forwarded header handling #34253
• Allow customization of cookie parsing in Jetty and JDK HttpClient connectors #34081
• Prevent further configuration once AbstractJdbcCall is compiled #33729

• AnnotatedElementUtils.getAllAnnotationAttributes(…) missing @Nullable #34394

• Fix Javadoc @code tags #34342

• Upgrade to Kotlin Coroutines 1.10 #34376
• Upgrade to Kotlin Serialization 1.8 #34378

Thank you to all the contributors who worked on this release:

@craftmaster2190, @dssievewright, @izeye, @m4tt30c91, and @remeio

• Add form fields to MockMvc Kotlin DSL #34412
• Make ProblemDetail implement Serializable #34409
• Support @MockitoSpyBean at the type level on test classes #34408
• Expose order values of TestExecutionListener implementations as constants #34404
• ContentDisposition should match attributes in a case-insensitive fashion #34383
• Provide access to servletPath in ServletRequestPathUtils #34379
• Use ConversionService to convert POJO to array for SpEL varargs invocations #34371
• Provide a more actionable CGLIB error message with native #34370
• Wrap disconnected client exceptions as AsyncRequestNotUsableException in Servlet container onError callback #34363
• Support RFC 8441 WebSocket upgrade with HTTP/2 CONNECT #34362
• Optimize default property editor allocations for bean instance creation #34361
• Continue with pre-instantiation when current bean is in creation already #34349
• Allow filtering bean instances returned by ObjectProvider#stream() #34318
• GenericConversionService finds wrong converter for partially unresolvable generic types #34298
• Avoid re-creating HandlerMethod unless handler is resolved through the BeanFactory #34277
• UrlResource should leniently handle HTTP endpoints which do not support HEAD #34217
• Add API counterpart for handling Fallback and 'defaultCandidate=false' beans #34203
• Add support for multidimensional arrays #34183
• Add getters to ServerResponseResultHandler #34066
• Improve diagnostics when a Bean Override cannot be selected by type #34006
• Expression performance regression due to missing annotation types on context classes #33948

• PathMatchingResourcePatternResolver failing against non-jar file in classpath #34417
• GenericTypeResolver Since 6.2.0, generics cannot be obtained correctly in multi-layer interface inheritance (possible regression of #24963) #34386
• Test Bean Overrides honor fallback qualifier instead of @Primary semantics #34374
• HTTP interface client raises IllegalArgumentException if query param name contains a colon #34364
• Quartz-style Nth Day of Week cron expressions can overflow to other month #34360
• Component scan fails to find jar entries in WEB-INF/classes with embedded Tomcat #34348
• Check hasNext when when accessing sessionIds from UserDestinationResult #34333
• Property binding to Map that implements Iterable no longer works #34332
• GenericTypeResolver returns EmptyType #34328
• Duplicate BeanOverrideHandler discovered in @Nested test class hierarchy when upgrading to Spring 6.2.2 #34324
• AnnotationBeanNameGenerator issues warning about explicitly aliased value attribute #34317
• Stop assuming that AspectJ Advice has JoinPoint as the first argument #34316
• Constructor binding fails for simple types List/Map/Array and for nested container combinations #34305
• Change in BeanFactoryUtils.beanNamesForTypeIncludingAncestors() Behavior in Spring Framework 6.2.x causing ClassCastExceptions #34300
• Data binding does not filter HTTP headers for constructor binding #34292
• Escaped character in nested placeholder not detected properly and leads to invalid parts #34289
• ReflectJvmMapping.getKotlinFunction returns null for Kotlin properties #34284
• ConfigurationClassEnhancer should explicitly set custom ClassLoader on CGLIB Enhancer (aligned with CglibAopProxy) #34274
• Connection reset exception from RestTemplate call in Spring Web MVC controller is ignored #34264
• AsyncExecution fails to detect the return type of an annotated method from an interface with a generic #33957
• Ensure Locale context is available for WebFlux method validation #33810

• Fix reference to ApplicationContext#getAutowireCapableBeanFactory in reference documentation #34400
• Clarify component scanning of abstract classes with @Lookup methods #34367
• Minor update in WebSocket STOMP reference documentation #34353
• Clarify documentation on the usage of RestClient in POST scenarios without response body #34334
• Document limitation around the port of localAddress in StandardWebSocketSession #34304
• Fix Javadoc for field reflection hints #34297
• Improve Javadoc for SpringProperties.getFlag() #34295
• Link to current AspectJ Javadoc #34293
• Update Javadoc for SimpleCommandLinePropertySource #34282
• Update RestClientException Javadoc to refer to RestClient #34270
• Document order values for TestExecutionListener implementations #34265
• Document custom HttpServiceArgumentResolver usage #34227

• Upgrade to Micrometer 1.14.4 #34401
• Upgrade to Reactor 2024.0.3 #34403
• Upgrade to RSocket 1.1.5 #34402

Thank you to all the contributors who worked on this release:

@JoshuaChen, @Puppy4C, @anaconda875, @brandenclark, @canattofilipe, @dobrosi, @izeye, @jazdw, @khoutz182, @kwondh5217, @pirocraft, @quaff, @remeio, and @tarekmues

• Improve PathMatcher to PathPatternParser migration in mvc XML configuration #34102
• Avoid logger serialization behind shared EntityManager proxy #34085

• Check hasNext when when accessing sessionIds from UserDestinationResult #34397
• Quartz-style Nth Day of Week cron expressions can overflow to other month #34377
• Stop assuming that AspectJ Advice has JoinPoint as the first argument #34369
• ConfigurationClassEnhancer should explicitly set custom ClassLoader on CGLIB Enhancer (aligned with CglibAopProxy) #34358
• Property binding to Map that implements Iterable no longer works #34338
• AnnotationBeanNameGenerator issues warning about explicitly aliased value attribute #34330
• Connection reset exception from RestTemplate call in Spring Web MVC controller is ignored #34278
• Wrong parentId tracking in FlightRecorderApplicationStartup #34254
• Ensure AsyncListener#onError does not return until dispatch completes #34196
• SpEL fails to invoke MethodHandle function reference accepting only varargs #34114

• Clarify component scanning of abstract classes with @Lookup methods #34368
• Fix broken links in the web reference documentation #34139

• Upgrade to Reactor 2023.0.15 #34406
• Upgrade to RSocket 1.1.5 #34405