• Implement toString() in TestBeanOverrideHandler #34072
• Log alias removal in DefaultListableBeanFactory #34070
• Log warning when one Bean Override overrides another Bean Override #34056
• Introduce "unsafeAllocated" flag in TypeHint #34055
• Cannot assert status reason phrase with MockMvcTester #34016
• Improve toString for reactive ScheduledTask #34010
• Optimize sending requests without a body in RestClient and WebClient with Reactor Netty #34003
• Add missing @Contract annotation to ObjectUtils#isEmpty #33984
• OptionalValidatorFactoryBean suppresses Hibernate Validator configuration failures too much #33979
• Support Flux<ServerSentEvent<Fragment>> in WebFlux #33975
• Update in FragmentsRendering to names of static methods #33974
• Honor @Fallback semantics for Test Bean Overrides #33924
• AdvisedSupport.MethodCacheKey should check for logical equality as well as identity #33915
• Fail with full description for XML diff in XmlExpectationsHelper #33827
• MapMethodProcessor should only resolve arguments of type Map or the ModelMap hierarchy #33160

• Support binding from request headers via constructor args #34073
• Unable to configure custom scheduler for @Scheduled annotation #34058
• Identical Bean Overrides are silently allowed #34054
• OOM due to NoTransactionInContextException in reactive pipeline #34048
• Priority header causes binding exception after upgrade to Spring Framework 6.2.0 #34039
• @MockitoBean incorrectly injects supertype into subtype field #34025
• NestedPlaceholder are not recursively resolved if the fallback is a placeholder #34020
• AOT no longer generates BeanInstanceSupplier signature for a CGLIB proxy with its public type #33998
• Nested transaction support via savepoints is broken in Oracle database #33987
• Proxy created with IntroductionInterceptor but without target always throws an exception #33985
• ApplicationListener no longer invoked for generic ApplicationEvent with 6.2.0 #33982
• Error handling override in DefaultResponseErrorHandler ignored after upgrade to 6.2.0 #33980
• BeanCurrentlyInCreationException is thrown when multiple threads simultaneously try to create a FactoryBean #33972
• HandshakeWebSocketService assumes jakarta websocket is present #33970
• @Value cases SpringCGLIB$$0 required a bean of type java.lang.String that could not be found in Native compile when migrating to SB 3.4 #33960
• PathMatchingResourcePatternResolver should not log directory-skip messages at info level #33956
• Avoid infinite recursion in BeanValidationBeanRegistrationAotProcessor with recursive generics #33950
• Skip runtime hint registration for validation constraint with missing dependencies #33949
• Move Kotlin value class unboxing to InvocableHandlerMethod #33943
• MockReset strategy is no longer honored for @MockitoBean and @MockitoSpyBean #33941
• TypeDescriptor with recursive generics triggers infinite recursion in ResolvableType.equals/hashCode #33932
• RestClient does not expose full URI template as attribute #33928
• Bean Overrides like @MockitoBean and @TestBean should not be allowed on static fields #33922
• Regression in duplicate beans with different method names #33920

• Fix link to MockMvcBuilders in reference documentation #34031
• Fix a typo in the filters documentation #33959
• Document visibility requirements for Bean Overrides #33923
• Fix typos and link in Observability documentation #33910
• SpEL documentation contains syntax errors #33907
• Improve explanation of AOP advice classes that should implement MethodInterceptor #33901
• Reflect well-known HttpHeaders intent in Javadoc #33886
• Reflect well-known MediaTypes intent in Javadoc #33754
• Document support for varargs invocations in SpEL #33332

• Upgrade to Micrometer 1.14.2 #34050
• Upgrade to Reactor 2024.0.1 #34051

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

@Boiarshinov, @CHOICORE, @KNU-K, @izeye, @ngocnhan-tran1996, @scordio, @sonallux, and @youabledev

• Log alias removal in DefaultListableBeanFactory #34071
• OptionalValidatorFactoryBean suppresses Hibernate Validator configuration failures too much #34041
• Update UndertowHttpHandlerAdapter to dispatch #33969

• HandshakeWebSocketService assumes jakarta websocket is present #34023

• Fix a typo in the filters documentation #33971
• SpEL documentation contains syntax errors #33908

• Upgrade to Reactor 2023.0.13 #34049
• Upgrade to Undertow 2.3.18.Final #33976

• Update UndertowHttpHandlerAdapter to dispatch #33885
• Refine @Contract Javadoc to mention this and new return values #33849
• AOT processing for bean validation does not consider cascaded and container element constraints #33842
• Avoid repeated resolving of singleton beans through @Lazy proxy #33841
• Regiser runtime hints for @TestBean fully-qualified method names #33836
• Introduce support for custom reason in @DisabledInAotMode #33833
• Use optimistic locking where possible in ResponseBodyEmitter #33831
• Revise cookies support with Apache HTTP Components in WebClient and WebTestClient #33822
• Remove the pure attribute from @Contract #33820
• Introduce @CheckReturnValue annotation #33818
• ResourceHttpRequestHandler throwing IllegalArgumentException if resource doesn't end with slash breaks some third-party libraris #33815
• Provide first-class virtual thread option on ThreadPoolTaskExecutor/ThreadPoolTaskScheduler #33807
• HttpServiceProxyFactory should omit optional @RequestParam if converted from null to empty string #33794
• Reactor Netty response should not buffer the full response #33781
• Relax the visibility of MockMVC DSL constructors #33778
• Support Publisher to InputStream conversion #31677

• MockReset should be honored without @Mockito[Spy]Bean fields #33829
• Test Bean Overrides do not honor @Primary semantics #33819
• Bean Overrides cannot reliably override beans created by a FactoryBean with generics #33811
• Bean Overrides for certain FactoryBean use cases no longer work #33800
• @MockitoBean, @MockitoSpyBean, & @TestBean do not work with @DirtiesContext "before method" modes #33783
• Deprecate exchangeTimeout and refactor readTimeout in ReactorClientHttpRequestFactory #33782

• Revise documentation for SpEL PropertyAccessor and IndexAccessor APIs regarding ordering #33862
• Document UrlHandler Servlet and reactive filters #33784
• Improve documentation for SpelCompilerMode #33223

• Upgrade to ASM 9.7.1 (for early Java 24 support) #33821
• Upgrade to Micrometer 1.14.0 #33876
• Upgrade to Reactor 2024.0.0 #33878

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

@Hejow, @OlegDokuka, and @lucky8987

• Use UriUtils to process static resource paths #33859
• Prefer modified resources over the originals in TestCompiler #33850
• Improve iteration methods in native headers to MultiValueMap adapters #33823
• Deregister empty Cache from CacheManager #33813
• Rename aopAvailable constants in TransactionSynchronizationUtils for better GraalVM native image support #33796
• Load-time weaving support for WildFly 24+ #33728

• DefaultClientRequestObservationConvention generates wrong uri tag when missing path #33867
• HttpComponentsClientHttpRequestFactory setReadTimeout not working with httpclient 5.4 #33806
• HttpHeaders.writeableHttpHeaders(new HttpHeaders(readOnlyHttpHeaders)) is not writeable #33789
• RestClient exchange methods are not nullable #33779
• Throw SpelParseException for unsupported character in SpelExpressionParser #33767
• DefaultMessageListenerContainer reports incorrect jms.process.message count #33758
• Autowiring fails if multiple non-highest @Priority beans exist with same priority #33733
• Jackson2Decoder leaks on WebClient timeout #33731
• DefaultServerRequestObservationConvention throws when response status is zero #33725
• Aspect executed twice - @AfterThrowing #33704
• parts w/o filename in Content-Disposition header are not cleaned from temp folder (skipped by StandardServletMultipartResolver) #33511

• Resources link points to wrong section of reference guide #33882
• Remove mentions of Joda-Time support #33881
• SimpleAsyncTaskExecutor blocks calling thread when concurrencyLimit set #33873
• Fix formatting issue in validation section of reference guide #33871
• Fix typo in reference documentation #33865
• Fix XML bean reference example in reference manual #33855
• Fix a typo in documentation #33846
• Numerous warnings when injecting dependencies into configuration that implements CachingConfigurer #33834
• @Async documentation should not suggest deprecated classes #33805
• Document that circular dependencies should be avoided in AOT mode #33786
• Inconsistent Lifecycle Management with Virtual Threads in Spring Boot Async Configuration #33780
• Fix incorrect regex rendering in MVC controller documentation #33766
• Improve documentation for allowEagerInit parameter in getBeanNamesForType() #33740
• Fix Javadoc in ReactorNetty2ResourceFactory #33735
• Document options for handling Date/Time parsing and formatting issues with JDK 20+ #33151

• Upgrade to Micrometer 1.12.12 #33877
• Upgrade to Reactor 2023.0.12 #33879

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

@Torres-09, @ZLATAN628, @hosamaly, @izeye, @kunaljani1100, @ngocnhan-tran1996, and @wilkinsona

• Update retrieve() in RestClient to execute and extract in single scope #33777
• Remove proxyTargetAware attribute from @MockitoSpyBean #33775
• PathMatchingResourcePatternResolver sorting of JAR resources #33771
• Add default handling for disconnected client errors to Spring MVC #33763
• Remove ServerResponse.AsyncBuilder interface #33736
• Fix PathMatchingResourcePatternResolver manifest classpath discovery #33705
• Add cookie support to RestClient #33697

• @MockitoSpyBean does not support transparent verification #33774
• Bean with defaultCandidate = false and qualifier does not work with constructor injection #33762
• Update HttpHeaders.setHost() to actually remove the Host header #33716

• Rework links to Spring Boot docs in reference documentation #33776
• Add Kotlin examples in aot.adoc #33761
• Improve the discoverability of Java and Kotlin APIs documentation from the refdoc #32835

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

@Nicklas2751, @bivo, @philwebb, and @roll-w

• Verify static resource location ends on slash #33712
• Support record canonical constructor in BeanUtils #33707
• Rename OverrideMetadata for Bean Overrides #33702
• Rename BeanOverrideStrategy enum constants #33701
• Polish ServletWebRequest #33698
• Remove support for relative paths in static resource handling #33687
• Add value attribute alias to @MockitoBean and @MockitoSpyBean #33680
• Reject bean names with factory prefix for Bean Overrides #33674
• Revise handling of URI variable syntax in WhatWG URL parser #33673
• Introspect pre-registered singletons in preDetermineBeanTypes as well #33668
• Remove unnecessary array length check #33655
• Polish CorsConfiguration #33650
• Add URL Parser for RFC 3986 #33639
• Handle X-Forwarded-Prefix parsed by Reactor-Netty in ReactorServerHttpRequest #33638
• RestClient should auto-detect ReactorClientHttpRequestFactory #33635
• Improve random source in SockJS support #33632
• Stop replacing existing Bean Override definitions with pseudo-definitions #33627
• Introduce enforceOverride flag in @TestBean and @MockitoBean #33613
• Refactor unwrapOptional method to improve readability and performance #33612
• ServerSentEvent should implement equals() and hashCode() #33606
• Reduce the GC pressure due to NoTransactionInContextException instances #33601
• Make DynamicPropertyRegistrarBeanInitializer public #33593
• Improve toString() for AbstractBeanDefinition and BeanMetadataAttribute #33579
• Add utility methods for resource handler checks #33574
• UrlHandlerFilter should not strip the trailing slash from the contextPath URL #33565
• AbstractGenericHttpMessageConverter has no constructor taking a Charset #33563
• JdbcClient ResultQuerySpec - Provide a optionalValue() method #33560
• Add read timeout setter on HttpComponentsClientHttpRequestFactory #33556
• Fix virtual thread pinning caused by synchronized blocks in EclipseLinkJpaDialect #33546
• Add RestClient.Builder#messageConverters(List) #33536
• Refine null-safety for additional Assert methods #33530
• Throw runtime error for @TransactionalEventListener when @Transactional propagation level is not REQUIRES_NEW or NOT_SUPPORTED #33470
• With virtual threads enabled, long-running fixedDelay tasks block fixedRate tasks #33408
• Provide a public mechanism for detecting if AOT processing is in progress #33388
• Use only one request timeout mechanism in JdkClientHttpRequest #33090
• Support bean override features with AOT and native image #32933
• Limit reflective operations in BeanInstanceSupplier with Spring AOT #32834
• Mixin created with IntroductionInterceptor results in dynamic proxy instead of CGLIB proxy #31304
• Lenient URI parsing in ServletServerHttpRequest #30489
• Exclude authorization messages from ERROR logging in StompSubProtocolHandler #28252
• Propagate fully capable ServletContext in AbstractContextLoaderInitializer (for SessionCookieConfig access) #22319

• PropertySourcesPropertyResolver no longer converts to non CharSequence types #33727
• Lower-casing of scheme in UriComponentsBuilder breaks use of URI variables #33699
• Remove @MockitoBeanSettings and support for MockitoSession management #33692
• @MockitoBeanSettings is not inherited in @Nested test class #33685
• AOT fails when generating code for a component declared as an inner-class #33683
• @MockitoBean reset and MockitoSession management do not work with @Nested tests #33676
• DurationFormatterUtils should not attempt to parse an empty duration #33669
• DefaultServerHttpRequestBuilder can create case-sensitive Headers instances #33666
• Context cache is broken if two Bean Override fields declare annotations in different order #33633
• Test bean override support should only override singletons #33602
• Kotlin checked exception thrown from proxy service causes UndeclaredThrowableException #33585
• Autowiring of generic beans with array types is broken since 6.2.0-M1 #33535
• AnnotatedBeanDefinitionReader should respect @Fallback qualifier analogous to @Primary #33533

• Add Javadoc since for headers() in Delete/Patch/Post/PutExchange #33723
• Document XML parser usage against security false positives #33713
• Update scheduling.adoc #33709
• Document TestExecutionListener implementations introduced in 6.2 #33661
• Replace RFC 7807 with RFC 9457 in documentation #33594
• Document that TestContextAnnotationUtils is required for proper @Nested test class support #33586
• Replace e.g. with for example #33515
• Document non-default candidate beans and Java-based configuration of non-autowire candidate beans #33392

• Upgrade to Jackson 2.18 #33615
• Upgrade to Micrometer 1.14.0-RC1 #33648
• Upgrade to Reactor 2024.0.0-RC1 #33636

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

@EugeneNik, @J-unStiN, @Jaeyoung22, @Seungpang, @SungbinYang, @TAKETODAY, @boulce, @cfredri4, @chemicL, @chschu, @cmagnuson, @izeye, @khyojun, @kimjuke, @ngocnhan-tran1996, @quaff, @smartandhandsome, and @zinzoddari

• Use Locale.ROOT for locale neutral, case insensitive comparisons #33708
• Improve checks for relative paths in static resource handling #33689
• CorsUtils.isCorsRequest throws unhandled IllegalArgumentException and returns 500 Internal Server Error on malfomed Origin header #33682
• Skip processing of Java annotations in QualifierAnnotationAutowireCandidateResolver #33580
• Include argument name in MethodArgumentTypeMismatchException error message #33573
• Preserve coroutine context in WebClientExtensions #33548
• Blocking call detected in ConcurrentReferenceHashMap by BlockHound #33450
• Warning message about bean post-processing and eager injection may suggest the wrong cause #33184

• DelegatingFilterProxy Causes Pinned Virtual Threads #33656
• Potential NPE from MethodParameter.getMethod() check in KotlinDelegate.hasDefaultValue() #33609
• Missing native image hints for JDK proxies created by JMS connection factories #33590
• AotTestExecutionListener should not be invoked for a @DisabledInAotMode test class #33589
• Use encoded resource path instead of input path validation in spring-webflux #33568
• org.springframework.util.ResourceUtils#toRelativeURL drops custom URLStreamHandler #33561
• Current observation not in scope during WebClient ExchangeFilterFunction execution #33559
• ZoneIdEditor throws wrong exception type for TypeConverterSupport #33545
• MimeMessageHelper addInline with ByteArrayResource fail with null filename #33527
• @Cacheable throws NullPointerException when RuntimeException is thrown inside annotated code #33492
• Path variable values missing in RedirectView when PathPattern are used #33422
• Reactive HttpComponentsClientHttpResponse ignores Expires cookie attribute #33157

• Update fallback.adoc #33721
• Update scheduling.adoc #33703
• Fix link in testing/support-jdbc.adoc #33686
• Adapt Javadoc note about log level of BeanPostProcessorChecker #33617
• Reference the spring-framework-petclinic repository wich uses AspectJ #33539

• Upgrade to Apache HttpClient 5.4 #33587
• Upgrade to Apache HttpCore Reactive 5.3 #33588
• Upgrade to Awaitility 4.2.2 #33604
• Upgrade to Micrometer 1.12.11 #33647
• Upgrade to Reactor 2023.0.11 #33637

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

@arey, @asibross, @boulce, @drdpov, @hosamaly, @ilya40umov, @izeye, and @junhyeongkim2

• Update mime.types and remove commented entries #33512
• Provide access to the unexpanded URI template when using MockMvc #33509
• Avoid empty array allocations in AnnotationTypeMapping #33507
• Introduce DynamicPropertyRegistrar as a replacement for DynamicPropertyRegistry bean support #33501
• Avoid storing duplicate empty array in MethodParameter field #33496
• Avoid empty array allocations in ResolvableType #33473
• Update Content-Length when body changed by Interceptor #33459
• UrlHandlerFilter should not strip the trailing slash from root URLs #33444
• Unwrap CGLIB proxy when invoking non-proxied methods in ReflectionTestUtils #33429
• Refactor eTag formatting logic into a static utility method #33412
• Encapsulate ETag comparison logic #33385
• Harmonize Reactor client class names within the http.client package #33382
• Allow multiple listeners on ResponseBodyEmitter #33356
• Invoke init/destroy/SpEL methods via public declaring type whenever possible #33216
• Create WebFlux equivalent filter to handle URLs with trailing slashes #32830
• Provide more ways to stream through ServerResponse for WebMvc functional endpoints #32710

• BeanCurrentlyInCreationException is thrown when multiple threads get a bean from StaticApplicationContext's Bean Factory #33463

• Revise reference documentation for Spring JMX annotations #33466
• Add Javadoc since for ReflectionHints.registerForInterfaces() #33458
• Revise AOP proxying section of the reference manual #33455
• Consolidate self injection documentation in the reference manual #33454
• Expand acronyms FQN and FQCN #33452
• Document that WebFlux does not support forward redirects #33441
• Document TaskDecorator usage with TaskExecutors #33438

• Upgrade to JUnit 5.11 #33395
• Upgrade to Micrometer 1.14.0-M3 #33520
• Upgrade to Reactor 2024.0.0-M6 #33521

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

@hyunmin0317, @imzhoukunqiang, @izeye, @kilink, @quaff, and @tafjwr

• Errors thrown from SmartLifeycle#stop results in (unnecessary) waiting for the shutdown timeout #33442
• Updates to resource handling for functional endpoints #33434
• Stop logging result in WebAsyncManager #33406
• spring native not support method handler with kotlin default value #33384

• Ensure use of specified status code on redirect with Rendering #33498
• Inconsistent handling of X-Forwarded-Prefix in servlet and reactive stack #33465
• ServerHttpObservationFilter does not register against new async operations #33451
• Revert removal of deprecated rawStatusCode methods #33440
• PathMatchingResourcePatternResolver no longer follows symlinks #33424
• Deadlock between SseEmitter and StandardServletAsyncWebRequest when clients disconnect #33421
• RestClient doesn't open a scope for the processing of the request #33397
• WebTestClient leaks when ParameterizedTypeReference is used #33389

• Document fixed rate scheduling with CRaC #33490
• Update information in SpEL Evaluation chapter in reference manual #33456
• Stop documenting use of -debug compiler flag in reference manual #33453
• Use discrete headings instead of titled blocks in reference manual #33447
• Fix example for @ImportResource in the reference manual #33446
• Fix a typo in the CDS documentation #33437
• Fix link to chapter introduction #33417
• Improve documentation on reading form data via Servlet request parameters vs @RequestBody #33409

• Upgrade to Kotlin 1.9.25 #33471
• Upgrade to Micrometer 1.12.10 #33518
• Upgrade to Objenesis 3.4 #33526
• Upgrade to Reactor 2023.0.10 #33519

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

@dancer1325, @izeye, and @yfoel

• Improve optional parameter checks for HTTP Interface argument #33339
• Two @Bean methods with the same bean name should consistently throw an exception #33330
• Support static headers for http interface clients #33309
• Add DatabaseClient bind variant for list of positioned parameters #33274
• HandlerMethodValidator should support simple Cross-Parameter constraints #33271
• UserCredentialsConnectionFactoryAdapter should provide credentials to createContext #33270
• Support flexible multi-unit duration format in @DurationFormat #33262
• MockMvc should prepare a FilterRegistration when initializing filters #33252
• Add option to ignore bean registration with AOT #33243
• Support JAXBElement in Jaxb2RootElementHttpMessageConverter #33233
• MimeMessageHelper does not set filename on inline MimeBodyPart #33230
• Add handling for AsyncRequestNotUsableException to ResponseEntityExceptionHandler #33225
• Allow formatting of Collection values for @RequestParam with HTTP interface client #33220
• Support rendering stream of fragments #33194
• Allow resolving nested placeholders if value is not String but CharSequence #32876
• Support multiple style of parsing/printing Durations #30396
• Restore support for Freemarker request parameters and taglibs now that it supports Jakarta #30186
• AOT/native support when registering beans with the Kotlin DSL #29555
• Offer a way for MockitoTestExecutionListener to enable strict stubbing #33318
• Provide access to all counters in case of BatchUpdateException with multiple batches #23867
• Low level cache failure for sync/reactive/future Cacheable get is not handled by CacheErrorHandler #21590

• Programmatic NoUniqueBeanDefinitionException in CacheAspectSupport should match message structure #33305
• JdbcClient.MappedQuerySpec::single can return null #33300
• Registration of DynamicPropertyRegistry in a test context has broken native testing #33272
• MapAccessor#canWrite incorrectly returns true for non-Map target #33265
• BeanDefinition processed by AOT does not keep fallback flag #33261
• ImportSelector#getExclusionFilter does not exclude matching candidates with import selector #27080

• Document that SpEL expressions using bean references are not compilable #33363
• Remove duplicated "the" in Javadoc #33308
• Update documentation for fragment rendering #33195
• Document ControllerAdviceBean as internal usage #32776

• Upgrade to Micrometer 1.14.0-M2 #33327
• Upgrade to Reactor 2024.0.0-M5 #33328

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

@OlgaMaciaszek, @benelog, @deblockt, @doljae, @izeye, @quaff, and @zinzoddari