CHANGELOG

4.1.0

added orphaned events support to EventDataCollector
ExceptionListener now logs exceptions at priority 0 (previously logged at -128)
Deprecated service:action syntax with a single colon to reference controllers. Use service::method instead.
Added the ability to profile individual argument value resolvers via the Symfony\Component\HttpKernel\Controller\ArgumentResolver\TraceableValueResolver

4.0.0

removed the DataCollector::varToString() method, use DataCollector::cloneVar() instead
using the DataCollector::cloneVar() method requires the VarDumper component
removed the ValueExporter class
removed ControllerResolverInterface::getArguments()
removed TraceableControllerResolver::getArguments()
removed ControllerResolver::getArguments() and the ability to resolve arguments
removed the argument_resolver service dependency from the debug.controller_resolver
removed LazyLoadingFragmentHandler::addRendererService()
removed Psr6CacheClearer::addPool()
removed Extension::addClassesToCompile() and Extension::getClassesToCompile()
removed Kernel::loadClassCache(), Kernel::doLoadClassCache(), Kernel::setClassCache(), and Kernel::getEnvParameters()
support for the X-Status-Code when handling exceptions in the HttpKernel has been dropped, use the HttpKernel::allowCustomResponseCode() method instead
removed convention-based commands registration
removed the ChainCacheClearer::add() method
removed the CacheaWarmerAggregate::add() and setWarmers() methods
made CacheWarmerAggregate and ChainCacheClearer classes final

3.4.0

added a minimalist PSR-3 Logger class that writes in stderr
made kernels implementing CompilerPassInterface able to process the container
deprecated bundle inheritance
added RebootableInterface and implemented it in Kernel
deprecated commands auto registration
deprecated EnvParametersResource
added Symfony\Component\HttpKernel\Client::catchExceptions()
deprecated the ChainCacheClearer::add() method
deprecated the CacheaWarmerAggregate::add() and setWarmers() methods
made CacheWarmerAggregate and ChainCacheClearer classes final
added the possibility to reset the profiler to its initial state
deprecated data collectors without a reset() method
deprecated implementing DebugLoggerInterface without a clear() method

3.3.0

added kernel.project_dir and Kernel::getProjectDir()
deprecated kernel.root_dir and Kernel::getRootDir()
deprecated Kernel::getEnvParameters()
deprecated the special SYMFONY__ environment variables
added the possibility to change the query string parameter used by UriSigner
deprecated LazyLoadingFragmentHandler::addRendererService()
deprecated Extension::addClassesToCompile() and Extension::getClassesToCompile()
deprecated Psr6CacheClearer::addPool()

3.2.0

deprecated DataCollector::varToString(), use cloneVar() instead
changed surrogate capability name in AbstractSurrogate::addSurrogateCapability to 'symfony'
Added ControllerArgumentValueResolverPass

3.1.0

deprecated passing objects as URI attributes to the ESI and SSI renderers
deprecated ControllerResolver::getArguments()
added Symfony\Component\HttpKernel\Controller\ArgumentResolverInterface
added Symfony\Component\HttpKernel\Controller\ArgumentResolverInterface as argument to HttpKernel
added Symfony\Component\HttpKernel\Controller\ArgumentResolver
added Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::getMethod()
added Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::getRedirect()
added the kernel.controller_arguments event, triggered after controller arguments have been resolved

3.0.0

removed Symfony\Component\HttpKernel\Kernel::init()
removed Symfony\Component\HttpKernel\Kernel::isClassInActiveBundle() and Symfony\Component\HttpKernel\KernelInterface::isClassInActiveBundle()
removed Symfony\Component\HttpKernel\Debug\TraceableEventDispatcher::setProfiler()
removed Symfony\Component\HttpKernel\EventListener\FragmentListener::getLocalIpAddresses()
removed Symfony\Component\HttpKernel\EventListener\LocaleListener::setRequest()
removed Symfony\Component\HttpKernel\EventListener\RouterListener::setRequest()
removed Symfony\Component\HttpKernel\EventListener\ProfilerListener::onKernelRequest()
removed Symfony\Component\HttpKernel\Fragment\FragmentHandler::setRequest()
removed Symfony\Component\HttpKernel\HttpCache\Esi::hasSurrogateEsiCapability()
removed Symfony\Component\HttpKernel\HttpCache\Esi::addSurrogateEsiCapability()
removed Symfony\Component\HttpKernel\HttpCache\Esi::needsEsiParsing()
removed Symfony\Component\HttpKernel\HttpCache\HttpCache::getEsi()
removed Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel
removed Symfony\Component\HttpKernel\DependencyInjection\RegisterListenersPass
removed Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener
removed Symfony\Component\HttpKernel\EventListener\EsiListener
removed Symfony\Component\HttpKernel\HttpCache\EsiResponseCacheStrategy
removed Symfony\Component\HttpKernel\HttpCache\EsiResponseCacheStrategyInterface
removed Symfony\Component\HttpKernel\Log\LoggerInterface
removed Symfony\Component\HttpKernel\Log\NullLogger
removed Symfony\Component\HttpKernel\Profiler::import()
removed Symfony\Component\HttpKernel\Profiler::export()

2.8.0

deprecated Profiler::import and Profiler::export

2.7.0

added the HTTP status code to profiles

2.6.0

deprecated Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener, use Symfony\Component\HttpKernel\EventListener\DebugHandlersListener instead
deprecated unused method Symfony\Component\HttpKernel\Kernel::isClassInActiveBundle and Symfony\Component\HttpKernel\KernelInterface::isClassInActiveBundle

2.5.0

deprecated Symfony\Component\HttpKernel\DependencyInjection\RegisterListenersPass, use Symfony\Component\EventDispatcher\DependencyInjection\RegisterListenersPass instead

2.4.0

added event listeners for the session
added the KernelEvents::FINISH_REQUEST event

2.3.0

[BC BREAK] renamed Symfony\Component\HttpKernel\EventListener\DeprecationLoggerListener to Symfony\Component\HttpKernel\EventListener\ErrorsLoggerListener and changed its constructor
deprecated Symfony\Component\HttpKernel\Debug\ErrorHandler, Symfony\Component\HttpKernel\Debug\ExceptionHandler, Symfony\Component\HttpKernel\Exception\FatalErrorException and Symfony\Component\HttpKernel\Exception\FlattenException
deprecated Symfony\Component\HttpKernel\Kernel::init()
added the possibility to specify an id an extra attributes to hinclude tags
added the collect of data if a controller is a Closure in the Request collector
pass exceptions from the ExceptionListener to the logger using the logging context to allow for more detailed messages

2.2.0

[BC BREAK] the path info for sub-request is now always _fragment (or whatever you configured instead of the default)
added Symfony\Component\HttpKernel\EventListener\FragmentListener
added Symfony\Component\HttpKernel\UriSigner
added Symfony\Component\HttpKernel\FragmentRenderer and rendering strategies (in Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface)
added Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel
added ControllerReference to create reference of Controllers (used in the FragmentRenderer class)
[BC BREAK] renamed TimeDataCollector::getTotalTime() to TimeDataCollector::getDuration()
updated the MemoryDataCollector to include the memory used in the kernel.terminate event listeners
moved the Stopwatch classes to a new component
added TraceableControllerResolver
added TraceableEventDispatcher (removed ContainerAwareTraceableEventDispatcher)
added support for WinCache opcode cache in ConfigDataCollector

2.1.0

[BC BREAK] the charset is now configured via the Kernel::getCharset() method
[BC BREAK] the current locale for the user is not stored anymore in the session
added the HTTP method to the profiler storage
updated all listeners to implement EventSubscriberInterface
added TimeDataCollector
added ContainerAwareTraceableEventDispatcher
moved TraceableEventDispatcherInterface to the EventDispatcher component
added RouterListener, LocaleListener, and StreamedResponseListener
added CacheClearerInterface (and ChainCacheClearer)
added a kernel.terminate event (via TerminableInterface and PostResponseEvent)
added a Stopwatch class
added WarmableInterface
improved extensibility between bundles
added profiler storages for Memcache(d), File-based, MongoDB, Redis
moved Filesystem class to its own component