v7.0.0-M6

⭐ New Features

• Allow FixedBackOff to be constructed with only a custom interval #35028
• Use String.replace in MetadataEncoder #35025
• Revise @Nullable declarations for contains*() methods in CollectionUtils #35023
• Introduce JacksonJsonMessageConverter.getObjectMapper() #34963
• Remove (String, String) variants of setProperty() and withProperty() from MockEnvironment #34948
• Allow access to env from SupplierContextDsl #34943
• Consistently declare nullability @Contract for core utilities #34934
• Update HttpServiceGroupConfigurer API #34926
• Make ProblemDetailJacksonXmlMixin compatible with Jackson 3 #34925
• Introduce hints in RestClient API #34924
• Add Kotlin body advices #34923
• Add support for callable references to BeanRegistrarDsl #34922
• Additional updates for API versioning in test and client support #34919
• Define nullability @Contract for quote and getFilename in StringUtils #34896
• Support @Import on interfaces #34820
• Use HexFormat in CharacterEditor #34798
• Use HexFormat in ContentDisposition #34797
• Introduce minimal retry functionality as a core framework feature #34716
• Add support for "application/*+x-protobuf" media type #34645
• Support OutputStream and InputStream in HTTP Interface clients #32358

🐞 Bug Fixes

• @Contract for SupplierUtils.resolve(Supplier) incorrectly declares !null -> !null #34987
• Consistent null check on injection points for pre-existing singleton beans #34952

📔 Documentation

• Refine null-safety documentation terms #34982
• Stop referring to JUnit 5 in documentation #34970
• Fix typos in API versioning #34961
• Add missing since attributes for @Deprecated declarations #34942
• Improve Javadoc for getFilename() and getFilenameExtension() in StringUtils #34932
• Add documentation for HTTP service proxy registry #34912
• Update outdated JettyHttpHandlerAdapter example in reference documentation #34877

🔨 Dependency Upgrades

• Upgrade to Jackson 3.0.0-rc5 #34945
• Upgrade to Jetty 12.1.0.beta0 #34930
• Upgrade to Kotlin 2.2.0-RC2 #34946
• Upgrade to Micrometer 1.15.1 #35019
• Upgrade to Netty v4.2.2.Final and Reactor 2025.0.0-SNAPSHOT #34996
• Upgrade to Reactor 2025.0.0-M4 #34997

❤️ Contributors

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

@Tussle0410, @doroszkiewicz, @fmbenhassine, @hgh1472, @izeye, @kilink, @kssumin, @kwondh5217, @quaff, @scottfrederick, and @violetagg

v6.2.8

⭐ New Features

• Nullability @Contract declaration for CodeFlow.isIntegerForNumericOp() is unnecessary #34985
• Serializer hint registration is broken for some Kotlin classes #34979
• Clients created using JdkClientHttpRequestFactory set content-length for GET, DELETE and HEAD requests #34971
• Support registration of non-public BeanDefinitionReader via @ImportResource #34928
• Make max size for pattern cache in PathPatternMatchableHandlerMapping configurable #34918
• Add optimized DataBufferInputStream overrides #34799

🐞 Bug Fixes

• Encode non-printable character in Content-Disposition parameter #35034
• Allow update of existing WebSession after max sessions limit is reached #35013
• Fix support for collections in AbstractKotlinSerializationHttpMessageConverter #34992
• PathPattern#combine throws StringIndexOutOfBoundsException #34986
• Fix AOT code generation for autowired inner class constructor #34974
• AbstractFileResolvingResource.exists closes JAR resource input streams with v6.2.7 #34955
• Enhanced configuration class fails to call package-visible superclass constructor on WebSphere #34950
• Fix REPLY_CHANNEL header check in MessageHeaderAccessor #34949
• MockEnvironment does not accept Object property values #34947
• PropertySourcesPlaceholderConfigurer no longer uses ConversionService from Environment #34936
• @Contract for StreamUtils.drain() incorrectly declares null results in an exception #34933
• Inconsistent behavior injecting null @Bean factory parameter #34929
• MockHttpServletRequest.addHeader duplicates "Content-Type" header #34913
• BeanUtils.getParameterNames fails for Kotlin data classes #34760
• JAXB message converters ignore Content-Type charset #34745
• Aspect Not Triggered After Restart in Spring Boot 3.4.x (But Works in 3.3.10) #34735
• Add caching headers to unmodified static resources #34614

📔 Documentation

• Apply gh-34856 to MockClientHttpRequest in testfixture package #35031
• Fix ResourceHttpRequestHandler#setHeaders JavaDoc #35004
• Remove reference to AspectJ Eclipse Javadoc #35000
• Mention CompletableFuture in Spring MVC "Asynchronous Requests" section of reference manual #34991
• Fix exception name in ModelAttribute docs #34980
• Fix syntax in @SqlGroup example #34972
• Update X-Forwarded-Proto doc to say https / http #34959
• Update Guidance on Best Practices To Test Code That Uses RestClient and RestTemplate #34892
• Add a section for WebAsyncTask in mvc-ann-async.adoc #34885
• Clarify what @RestControllerAdvice vs @ControllerAdvice apply to by default #34866
• Improve Javadoc for @ExceptionHandler #34554

🔨 Dependency Upgrades

• Upgrade to HttpComponents HttpClient 5.5 #34941
• Upgrade to Micrometer 1.14.8 #35020
• Upgrade to Reactor 2024.0.7 #35021

❤️ Contributors

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

@Allan-QLB, @Aurh1l, @BowieDu, @DhruvTheDev1, @Dongnyoung, @JimmyAx, @addoDev, @dmitrysulman, @izeye, @jjank, @kilink, @mbazos, @msnsaeed71, @ngocnhan-tran1996, @nosan, @remeio, @vpavic, and @yuzawa-san

v6.1.21

🐞 Bug Fixes

• Encode non-printable character in Content-Disposition parameter #35035
• Allow update of existing WebSession after max sessions limit is reached #35018
• Enhanced configuration class fails to call package-visible superclass constructor on WebSphere #34951

🔨 Dependency Upgrades

• Upgrade to Reactor 2023.0.19 #35022

v7.0.0-M5

⭐ New Features

• Deprecate PropertyPlaceholderConfigurer and PreferencesPlaceholderConfigurer for removal #34880
• Add Consumer based variant methods to HttpRequestValues builder #34870
• Add defaultApiVersion to RestClient and WebClient builders #34857
• Evaluate system properties in default HttpClient in ReactorClientHttpRequestFactory #34850
• Use beanClassLoader in the HTTP Service Registrar #34846
• Deprecate JUnit 4 support in the Spring TestContext Framework #34794
• Ability to validate supported API versions only against explicitly configured ones #34775
• Revisit Jackson support #33798

🐞 Bug Fixes

• ClassFileAnnotationMetadata.fromTypeDescriptor(…) fails on Java 24 #34882
• Align ClassFileClassMetadata with other implementations #34869
• Incorrect filtering of groups with HttpServiceGroupConfigurer #34867
• Aggregated Javadoc no longer published since 7.0.0-M4 #34774

📔 Documentation

• Add Reference Documentation for API Versioning #34569

🔨 Dependency Upgrades

• Upgrade to Kotlin 2.1.21 #34900
• Upgrade to Micrometer 1.15.0 #34888
• Upgrade to Reactor 2025.0.0-M3 #34897

❤️ Contributors

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

@dmitrysulman, @philwebb, and @siom79

v6.2.7

⭐ New Features

• Forward more methods to underlying InputStream in NonClosingInputStream #34893
• Introduce Spring property for the default property placeholder escape character #34865
• Close ApplicationContext once AOT processing has completed #34841
• Fix AbstractJackson2HttpMessageConverter#getObjectMappersForType nullness #34811
• Add option for case-insensitive match to PatternMatchUtils #34801
• RestClient @RequestBody parameters lose generic type information when creating HTTP service beans #34793
• Adds option to set Principal in MockServerWebExchange #34789

🐞 Bug Fixes

• Beans created by FactoryBean are not considered as autowiring candidates if another thread holds a singletonLock #34902
• PropertySourcesPlaceholderConfigurer placeholder resolution fails in several scenarios #34861
• HttpComponentsClientHttpRequestFactory setConnectionRequestTimeout not working with httpclient 5.3.1 #34851
• Fragment.create() requires mutable map - which is unusable when used with Kotlin #34848
• Duplicate BeanOverrideHandler discovered in @Nested test case with superclass from different class or in interface implemented multiple times #34844
• Accidental ClassLoader defineClass enforcement after #34677 #34824
• HttpEntity.EMPTY headers should not be possible to mutate via HttpHeaders constructor #34812
• AbstractFileResolvingResource.exists incorrectly reports result for resources inside of spring-boot executable jar #34796
• Correctly expand query param with same name from URI variables array #34783
• R2DBC NamedParameterUtils only expands reused collection parameter once #34768
• PathMatchingResourcePatternResolver wrongly assumes that target/classes always exists #34764

📔 Documentation

• Clarify CompositePropertySource behavior for EnumerablePropertySource contract #34886
• Javadoc and @Nullable annotation for servletContext parameter of ConfigurableWebEnvironment.initPropertySources are contradictory #34845
• Spring MVC: @EnableAsync needs to be redeclared for each ApplicationContext #34843
• Provide a working example instead of unclear placeholders #34828

🔨 Dependency Upgrades

• Upgrade to Micrometer 1.14.7 #34889
• Upgrade to Reactor 2024.0.6 #34898

❤️ Contributors

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

@Artur-, @blake-bauman, @iifawzi, @kilink, @quaff, @whlit, and @zzoe2346

v6.1.20

⭐ New Features

• Add option for case-insensitive match to PatternMatchUtils #34802

🐞 Bug Fixes

• HttpComponentsClientHttpRequestFactory setConnectionRequestTimeout not working with httpclient 5.3.1 #34854
• Accidental ClassLoader defineClass enforcement after #34677 #34839

📔 Documentation

• Clarify CompositePropertySource behavior for EnumerablePropertySource contract #34887

🔨 Dependency Upgrades

• Upgrade to Reactor 2023.0.18 #34899

v7.0.0-M4

⭐ New Features

• 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

📔 Documentation

• 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

🔨 Dependency Upgrades

• 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

❤️ Contributors

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

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

v6.2.6

⭐ New Features

• 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

🐞 Bug Fixes

• 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

📔 Documentation

• 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

❤️ Contributors

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

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

v6.1.19

⭐ New Features

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

🐞 Bug Fixes

• 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

📔 Documentation

• 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

v6.2.5

⭐ New Features

• 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

🐞 Bug Fixes

• 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

📔 Documentation

• 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

🔨 Dependency Upgrades

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

❤️ Contributors

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

@Helmsdown, @dmitrysulman, and @ngocnhan-tran1996