SPRING FRAMEWORK CHANGELOG
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http://www.springsource.org


Changes in version 3.0.0.M3 (2009-04-06)
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* Spring 3.0 is shipping with proper Maven POMs now
* updated to JRuby 1.2 (remaining compatible with JRuby 1.1 and above)
* updated to Hessian 3.2.1 (remaining compatible with Hessian 3.1.3 and above)
* removed Axis 1.x support package, keeping basic JAX-RPC support only (next to JAX-WS)
* introduced new converter subsystem in "core.convert"
* introduced support for annotated factory methods
* introduced support for JavaConfig-style @Configuration classes
* @Autowired uses field/parameter name as fallback qualifier value
* qualifier annotations can be used at method level as well (applying to all parameters)
* @Value annotation can be used at method level as well (e.g. on bean property setters)
* @Value values may use ${...} placeholders (driven by PropertyPlaceholderConfigurer)
* fixed EL evaluation of prepared constructor arguments for repeated prototype creation
* ConstructorArgumentValues exposed indexed arguments in the order of definition
* declarative destroy-method="..." specifications get validated at bean creation time
* CachedIntrospectionResults always caches bean classes except in case of custom BeanInfo
* GenericTypeResolver's type variable cache uses weak values (for OSGi compatibility)
* fixed CachingMapDecorator to support garbage-collected weak references (again)
* SessionAwareMessageListener supports generic declaration of concrete JMS Message type
* RmiServiceExporter and RmiRegistryFactoryBean synchronize registry lookup/creation
* added "unregisterManagedResource" method to MBeanExporter/MBeanExportOperations
* TimerTaskExecutor creates non-daemon Timer and uses bean name as default Timer name
* added TaskScheduler interface and Trigger abstraction
* added ConcurrentTaskScheduler and ThreadPoolTaskScheduler
* added CommonJ TimerManagerTaskScheduler
* added CronTrigger implementation for cron expression support
* JSF FacesContext and ExternalContext are resolvable dependencies by default, if available
* FacesRequestAttributes (as used by RequestContextHolder) can access global Portlet session
* request handler methods with @ModelAttribute annotation always return a model attribute
* FreeMarkerView can be initialized with ServletContext only (e.g. for testing)


Changes in version 3.0.0.M2 (2009-02-25)
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* revised expression parser API design
* added SimpleThreadScope implementation
* refined OSGi version constraints for "javax.annotation" and "junit.framework"
* "systemProperties" bean is not considered a default match for type Properties anymore
* SimpleAliasRegistry's "getAliases" method returns transitive aliases now
* SimpleAliasRegistry detects resolved aliases that loop back to the original name
* PropertyPlaceholderConfigurer does not modify Map in case of equal String keys
* improved NoClassDefFoundError handling during constructor resolution
* inner class names in Java source style ("java.lang.Thread.State") supported as well
* pre-converted property values are preserved more eagerly for re-created beans
* prototype beans receive independent collection/array even when based on single value
* registered plain singletons will be fully matched according to their qualifiers
* @Qualifier value matching takes chained aliases of target beans into account as well
* ASM-based AnnotationMetadata fully resolves class arguments and enums into Java types
* ProceedingJoinPoint resolves parameter names using ASM-based parameter name discovery
* MethodInvocations and ProceedingJoinPoints always expose original method (not bridge)
* bridge method resolution works with Hibernate-generated CGLIB proxies as well
* generic collection type resolution respects upper bound (e.g. ? extends Number) as well
* TypeUtils detects variations of ParameterizedType/GenericArrayType assignability as well
* ReflectionUtils findMethod detects methods on "java.lang.Object" as well
* UrlResource eagerly closes HTTP connections in case of "getInputStream()" failure
* PathMatchingResourcePatternResolver avoids NPE when initialized with null ClassLoader
* all "taskExecutor" bean properties now accept any "java.util.concurrent.Executor"
* added "Future submit(Runnable)" and "Future submit(Callable)" to AsyncTaskExecutor
* SimpleAsyncTaskExecutor supports a custom "java.util.concurrent.ThreadFactory"
* SchedulingTaskExecutor interface extends AsyncTaskExecutor now
* added ThreadPoolExecutorFactoryBean (exposing the native ExecutorService interface)
* added ExecutorServiceAdapter class as a standard wrapper for a Spring TaskExecutor
* reduced backport-concurrent support to TaskExecutor adapters
* added @Async annotation and AsyncAnnotationAdvisor (namespace support coming in M3)
* EJB 3.1's @Asynchronous annotation gets detected and supported by default as well
* ApplicationListener beans get obtained on demand, supporting non-singletons as well
* ApplicationListeners will be called in the order according to the Ordered contract
* generified ApplicationListener interface, narrowing the event type to be received
* introduced SmartApplicationListener interface for supported event/source types
* generified Transaction/Hibernate/Jdo/JpaCallback with generic "doInXxx" return type
* HibernateOperations uses generic parameter/return types where possible
* JdoOperations uses generic parameter/return types where possible (following JDO 2.1)
* removed "flush" operation from JdoDialect (fully relying on JDO 2.0+ compliance now)
* added JDO 2.1 compliant StandardPersistenceManagerProxy/SpringPersistenceManagerProxy
* Spring-created EntityManagers support JPA 2.0 draft API ("unwrap", "getQueryBuilder")
* Spring initiates JPA 2.0 query timeout with remaining Spring transaction timeout
* added support for WebSphere's ResourceAdapter-managed messaging transactions
* made SpringBeanAutowiringInterceptor callback signature compatible with WebSphere
* WebSphereUowTransactionManager preserves original exception in case of rollback
* added "flush()" method to TransactionStatus and TransactionSynchronization interfaces
* test context manager automatically flushes transactions before rolling back
* DefaultLobHandler uses explicit Blob/Clob access for reading when "wrapAsLob"=true
* fixed JmsException/JmsUtils to fully avoid NPEs in case of cause messages being null
* fixed MessageListenerAdapter's "getSubscriptionName()" to work without delegate as well
* fixed HTTP invoker to support resolution of multi-level primitive array classes again
* deprecated support for JMS 1.0.2 providers (JmsTemplate102 etc)
* introduced top-level HTTP support package "org.springframework.http"
* introduced RestTemplate facility in package "org.springframework.web.client"
* introduced OXM support package (originating from Spring Web Services)
* introduced OXM-based MarshallingMessageConverter for Spring JMS
* introduced OXM-based MarshallingView for Spring MVC
* refined @PathVariable handling in MVC handler methods
* updated Spring Portlet MVC infrastructure and mocks for Portlet API 2.0
* added resource and event methods to Portlet HandlerAdapter/HandlerInterceptor
* added resolveException method for resource requests to HandlerExceptionResolver
* introduced Resource/EventAwareController subinterfaces of Portlet Controller
* introduced @Action/@Render/@Resource/@EventMapping annotations for Portlet MVC
* added @RequestHeader support for Portlet MVC (based on Portlet request properties)
* introduced @CookieValue annotation for Servlet and Portlet MVC handler methods
* @RequestMapping type-level param constraints taken into account consistently
* optional boolean parameters in MVC handler methods resolve to "false" if not present
* "url" macro in "spring.ftl" performs standard Servlet URL encoding automatically


Changes in version 3.0.0.M1 (2008-12-05)
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* revised project layout and build system (module-based sources, bundle repository)
* updated entire codebase for Java 5 code style (generics, varargs, StringBuilder)
* updated to JUnit 4.5 and JRuby 1.1
* removed WebLogic 8.1 and WebSphere 5.1 support
* removed native TopLink API support (superseded by JPA)
* removed Commons Attributes support (superseded by Java 5 annotations)
* removed Jakarta JSTL support for JSP 1.2 (superseded by JSP 2.0)
* removed outdated Struts 1.x Action delegation support
* removed ContextLoaderServlet and Log4jConfigServlet
* deprecated form controller hierarchy in favor of @MVC form object handling
* deprecated JUnit 3.8 test class hierarchy in favor of test context framework
* revised TaskExecutor interface to extend "java.util.concurrent.Executor" now
* introduced Spring EL parser in org.springframework.expression package
* introduced #{...} expression support in bean definitions
* introduced @Value annotation for embedded expression support
* introduced @PathVariable annotation for MVC handler methods
* introduced ShallowEtagHeaderFilter
* introduced AbstractAtomFeedView and AbstractRssFeedView
* introduced default value support for @RequestParam
* introduced @RequestHeader annotation for MVC handler methods
* introduced "spring:url" and "spring:param" JSP tags
