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+CHANGELOG for 3.4.x
+===================
+
+This changelog references the relevant changes (bug and security fixes) done
+in 3.4 minor versions.
+
+To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash
+To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v3.4.0...v3.4.1
+
+* 3.4.0-BETA1 (2017-10-18)
+
+ * feature #24583 Adding a new debug:autowiring command (weaverryan)
+ * feature #24523 [HttpFoundation] Make sessions secure and lazy (nicolas-grekas)
+ * feature #22610 [Form] [TwigBridge] Added option to disable usage of default themes when rendering a form (emodric)
+ * feature #23112 [OptionsResolver] Support array of types in allowed type (pierredup)
+ * feature #24321 added ability to handle parent classes for PropertyNormalizer (ivoba)
+ * feature #24505 [HttpKernel] implement reset() in DumpDataCollector (xabbuh)
+ * feature #24425 [Console][HttpKernel] Handle new SHELL_VERBOSITY env var, also configures the default logger (nicolas-grekas)
+ * feature #24387 [FORM] Prevent forms from extending itself as a parent (pierredup)
+ * feature #24484 [DI] Throw accurate failures when accessing removed services (nicolas-grekas)
+ * feature #24208 [Form] Display option definition from a given form type (yceruto, ogizanagi)
+ * feature #23499 [Workflow] add guard is_valid() method support (alain-flaus, lyrixx)
+ * feature #24388 [Security] Look at headers for switch_user username (chalasr)
+ * feature #23708 Added deprecation to cwd not existing Fixes #18249 (alexbowers)
+ * feature #24443 [Session] deprecate MemcacheSessionHandler (Tobion)
+ * feature #24409 [Bridge\Doctrine][FrameworkBundle] Deprecate some remaining uses of ContainerAwareTrait (nicolas-grekas)
+ * feature #24438 [Session][VarDumper] Deprecate accepting legacy mongo extension (Tobion)
+ * feature #24389 [DoctrineBridge] Deprecate dbal session handler (Tobion)
+ * feature #16835 [Security] Add Guard authenticator <supports> method (Amo, chalasr)
+ * feature #24289 [FrameworkBundle][HttpKernel] Reset profiler (derrabus)
+ * feature #24144 [FrameworkBundle] Expose dotenv in bin/console about (ro0NL)
+ * feature #24403 [FrameworkBundle][Routing] Show welcome message if no routes are configured (yceruto)
+ * feature #22679 [Form] Add tel and color types (apetitpa)
+ * feature #23845 [Validator] Add unique entity violation cause (Ilya Vertakov)
+ * feature #22132 [Lock] Automaticaly release lock when user forget it (jderusse)
+ * feature #21751 Bootstrap4 support for Twig form theme (hiddewie, javiereguiluz)
+ * feature #24383 [FrameworkBundle] Don't clear app pools on cache:clear (nicolas-grekas)
+ * feature #24148 [Form] Hide label button when its setted to false (TeLiXj)
+ * feature #24378 [SecurityBundle] Deprecate auto picking the first provider (ogizanagi)
+ * feature #24260 [Security] Add impersonation support for stateless authentication (chalasr)
+ * feature #24300 [HttpKernel][FrameworkBundle] Add a minimalist default PSR-3 logger (dunglas)
+ * feature #21604 [Security] Argon2i Password Encoder (zanbaldwin)
+ * feature #24372 [DowCrawler] Default to UTF-8 when possible (nicolas-grekas)
+ * feature #24264 [TwigBundle] Improve the overriding of bundle templates (yceruto)
+ * feature #24197 [Translation] 	Moved PhpExtractor and PhpStringTokenParser to Translation component (Nyholm)
+ * feature #24362 [HttpKernel] Deprecate some compiler passes in favor of tagged iterator args (nicolas-grekas)
+ * feature #21027 [Asset] Provide default context (ro0NL)
+ * feature #22200 [DI] Reference tagged services in config (ro0NL)
+ * feature #24337 Adding a shortcuts for the main security functionality (weaverryan, javiereguiluz)
+ * feature #24358 [TwigBundle] register an identity translator as fallback (xabbuh)
+ * feature #24357 [Yaml] include file and line no in deprecation message (xabbuh)
+ * feature #24330 [FrameworkBundle] register class metadata factory alias (xabbuh)
+ * feature #24349 [SecurityBundle] Add missing AclSchemaListener deprecation (ogizanagi)
+ * feature #24202 [Filesystem] deprecate relative paths in makePathRelative() (xabbuh)
+ * feature #21716 [Serializer] Add Support for `object_to_populate` in CustomNormalizer (chrisguitarguy)
+ * feature #21960 Remove Validator\TypeTestCase and add validator logic to base TypeTestCase (pierredup)
+ * feature #22113 [Lock] Include lock component in framework bundle (jderusse)
+ * feature #24236 [WebProfilerBundle] Render file links for twig templates (ro0NL)
+ * feature #21239 [Serializer] throw more specific exceptions (xabbuh)
+ * feature #24256 CsvEncoder handling variable structures and custom header order (Oliver Hoff)
+ * feature #23471 [Finder] Add a method to check if any results were found (duncan3dc)
+ * feature #23149 [PhpUnitBridge] Added a CoverageListener to enhance the code coverage report (lyrixx)
+ * feature #24318 [SecurityBundle] Deprecate ACL related code (chalasr)
+ * feature #24335 [Security][SecurityBundle] Deprecate the HTTP digest auth (ogizanagi)
+ * feature #21951 [Security][Firewall] Passing the newly generated security token to the event during user switching (klandaika)
+ * feature #23485 [Config] extracted the xml parsing from XmlUtils::loadFile into XmlUtils::parse (Basster)
+ * feature #22890 [HttpKernel] Add ability to configure catching exceptions for Client (kbond)
+ * feature #24239 [HttpFoundation] Deprecate compatibility with PHP <5.4 sessions (afurculita)
+ * feature #23882 [Security] Deprecated not being logged out after user change (iltar)
+ * feature #24200 Added an alias for FlashBagInterface in config (tifabien)
+ * feature #24295 [DI][DX] Throw exception on some ContainerBuilder methods used from extensions (ogizanagi)
+ * feature #24253 [Yaml] support parsing files (xabbuh)
+ * feature #24290 Adding Definition::addError() and a compiler pass to throw errors as exceptions (weaverryan)
+ * feature #24301 [DI] Add AutowireRequiredMethodsPass to fix bindings for `@required` methods (nicolas-grekas)
+ * feature #24226 [Cache] Add ResettableInterface to allow resetting any pool's local state (nicolas-grekas)
+ * feature #24303 [FrameworkBundle] allow forms without translations and validator (xabbuh)
+ * feature #24291 [SecurityBundle] Reset the authentication token between requests (derrabus)
+ * feature #24280 [VarDumper] Make `dump()` a little bit more easier to use (freekmurze)
+ * feature #24277 [Serializer] Getter for extra attributes in ExtraAttributesException (mdeboer)
+ * feature #24257 [HttpKernel][DI] Enable Kernel to implement CompilerPassInterface (nicolas-grekas)
+ * feature #23834 [DI] Add "PHP fluent format" for configuring the container (nicolas-grekas)
+ * feature #24180 [Routing] Add PHP fluent DSL for configuring routes (nicolas-grekas)
+ * feature #24232 [Bridge\Doctrine] Add "DoctrineType::reset()" method (nicolas-grekas)
+ * feature #24238 [DI] Turn services and aliases private by default, with BC layer (nicolas-grekas)
+ * feature #23648 [Form] Add input  + regions options to TimezoneType (ro0NL)
+ * feature #24185 [Form] Display general forms information on debug:form (yceruto)
+ * feature #23747 [Serializer][FrameworkBundle] Add a DateInterval normalizer (Lctrs)
+ * feature #24193 [FrameworkBundle] Reset stopwatch between requests (derrabus)
+ * feature #24160 [HttpKernel] Deprecate bundle inheritance (fabpot)
+ * feature #24155 [FrameworkBundle][HttpKernel] Add DI tag for resettable services (derrabus)
+ * feature #23625 Feature #23583  Add current and fallback locales in WDT / Profiler (nemoneph)
+ * feature #24179 [TwigBundle] Add default templates directory and option to configure it (yceruto)
+ * feature #24104 Make as many services private as possible (nicolas-grekas)
+ * feature #18314 [Translation] added support for adding custom message formatter (aitboudad)
+ * feature #24158 deprecated profiler.matcher configuration (fabpot)
+ * feature #24131 [Console] Do not display short exception trace for common console exceptions (yceruto)
+ * feature #24080 Deprecated the web_profiler.position option (javiereguiluz)
+ * feature #24114 [SecurityBundle] Throw a meaningful exception when an undefined user provider is used inside a firewall (chalasr)
+ * feature #24122 [DI] rename ResolveDefinitionTemplatesPass to ResolveChildDefinitionsPass (nicolas-grekas)
+ * feature #23901 [DI] Allow processing env vars (nicolas-grekas)
+ * feature #24093 [FrameworkBundle] be able to enable workflow support explicitly (xabbuh)
+ * feature #24064 [TwigBridge] Show Twig's loader paths on debug:twig command (yceruto)
+ * feature #23978 [Cache] Use options from Memcached DSN (Bukashk0zzz)
+ * feature #24075 Implemented PruneableInterface on TagAwareAdapter (Toflar)
+ * feature #21414 [Console] Display file and line on Exception (arno14)
+ * feature #24068 [HttpKernel] Deprecate EnvParametersResource (ro0NL)
+ * feature #22542 [Lock] Check TTL expiration in lock acquisition (jderusse)
+ * feature #24031 [Routing] Add the possibility to define a prefix for all routes of a controller (fabpot)
+ * feature #23967 [VarDumper] add force-collapse/expand + use it for traces (nicolas-grekas)
+ * feature #24033 [DI] Add ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE (nicolas-grekas)
+ * feature #24026 [Security] add impersonator_user to "User was reloaded" log message (gharlan)
+ * feature #23603 [Cache] Add (pdo|chain) cache (adapter|simple) prune method (robfrawley)
+ * feature #23694 [Form] Add debug:form command (yceruto)
+ * feature #24028 [Yaml] mark some classes as final (xabbuh)
+ * feature #22543 [Lock] Expose an expiringDate and isExpired method in Lock (jderusse)
+ * feature #23667 [Translation] Create an TranslationReaderInterface and move TranslationLoader to TranslationComponent (Nyholm)
+ * feature #24024 [config] Add ability to deprecate a node (sanpii)
+ * feature #23668 [VarDumper] Add period caster (maidmaid)
+ * feature #23991 [DI] Improve psr4-based service discovery (alternative implementation) (kbond)
+ * feature #23947 [Translation] Adding the ability do load <notes> in xliff2.0 (Nyholm)
+ * feature #23887 [Console] Allow commands to provide a default name for compile time registration (chalasr, nicolas-grekas)
+ * feature #23874 [DI] Case sensitive parameter names (ro0NL)
+ * feature #23936 Remove some sf2 references (fabpot)
+ * feature #23680 [Webprofiler] Added blocks that allows extension of the profiler page. (Nyholm)
+ * feature #23665 Create an interface for TranslationWriter (Nyholm)
+ * feature #23890 [Translation] Adding the ability do dump <notes> in xliff2.0 (Nyholm)
+ * feature #23862 [SecurityBundle] resolve class name parameter inside AddSecurityVotersPass (pjarmalavicius)
+ * feature #23915 [DI] Allow get available services from service locator (Koc)
+ * feature #23792 [HttpKernel][FrameworkBundle] Add RebootableInterface, fix and un-deprecate cache:clear with warmup (nicolas-grekas)
+ * feature #23227 Add support for "controller" keyword for configuring routes controllers (voronkovich)
+ * feature #23869 [Console] Made console command shortcuts case insensitive (thanosp)
+ * feature #23855 [DI] Allow dumping inline services in Yaml (nicolas-grekas)
+ * feature #23836 [FrameworkBundle] Catch Fatal errors in commands registration (chalasr)
+ * feature #23805 [HttpKernel] Deprecated commands auto-registration (GuilhemN)
+ * feature #23816 [Debug] Detect internal and deprecated methods (GuilhemN)
+ * feature #23812 [FrameworkBundle] Allow micro kernel to subscribe events easily (ogizanagi)
+ * feature #22187 [DependencyInjection] Support local binding (GuilhemN)
+ * feature #23741 [DI] Generate one file per service factory (nicolas-grekas)
+ * feature #23807 [Debug] Trigger a deprecation when using an internal class/trait/interface (GuilhemN)
+ * feature #22587 [Workflow] Add transition completed event (izzyp)
+ * feature #23624 [FrameworkBundle] Commands as a service (ro0NL)
+ * feature #21111 [Validator] add groups support to the Valid constraint (xabbuh)
+ * feature #20361 [Config] Enable cannotBeEmpty along with requiresAtLeastOneElement (ro0NL)
+ * feature #23712 [DependencyInjection] Deprecate autowiring service auto-registration (GuilhemN)
+ * feature #23719 Autoconfigure instances of ArgumentValueResolverInterface (BPScott)
+ * feature #23706 [Webprofiler] Improve sql explain table display (mimol91)
+ * feature #23724 [Lock] Deprecate Filesystem/LockHandler (jderusse)
+ * feature #23593 [Workflow] Adding workflow name to the announce event (Nyholm)
+ * feature #20496 [Form] Allow pass filter callback to delete_empty option. (Koc)
+ * feature #23451 [Cache] Add (filesystem|phpfiles) cache (adapter|simple) prune method and prune command (robfrawley)
+ * feature #23519 [TwigBundle] Commands as a service (ro0NL)
+ * feature #23591 [VarDumper] Add time zone caster (maidmaid)
+ * feature #23510 [Console] Add a factory command loader for standalone application with lazy-loading needs (ogizanagi)
+ * feature #23357 [VarDumper] Add interval caster (maidmaid)
+ * feature #23550 [DebugBundle] Added min_depth to Configuration (james-johnston-thumbtack)
+ * feature #23570 [FrameworkBundle] Make RouterCacheWarmer implement ServiceSubscriberInterface (nicolas-grekas)
+ * feature #23437 [TwigBridge] deprecate TwigRenderer (Tobion)
+ * feature #23515 [VarDumper] Added setMinDepth to VarCloner (james-johnston-thumbtack)
+ * feature #23404 [Serializer] AbstractObjectNormalizer: Allow to disable type enforcement (ogizanagi)
+ * feature #21086 [MonologBridge] Add TokenProcessor (maidmaid)
+ * feature #22576 [Validator] Allow to use a property path to get value to compare in comparison constraints (ogizanagi)
+ * feature #22689 [DoctrineBridge] Add support for doctrin/dbal v2.6 types (jvasseur)
+ * feature #22734 [Console] Add support for command lazy-loading (chalasr)
+ * feature #19034 [Security] make it possible to configure a custom access decision manager service (xabbuh)
+ * feature #23037 [TwigBundle] Added a RuntimeExtensionInterface to take advantage of autoconfigure (lyrixx)
+ * feature #22176 [DI] Allow imports in string format for YAML (ro0NL)
+ * feature #23295 [Security] Lazy load user providers (chalasr)
+ * feature #23440 [Routing] Add matched and default parameters to redirect responses (artursvonda, Tobion)
+ * feature #22832 [Debug] Deprecate support for stacked errors (mbabker)
+ * feature #21469 [HttpFoundation] Find the original request protocol version (thewilkybarkid)
+ * feature #23431 [Validator] Add min/max amount of pixels to Image constraint (akeeman)
+ * feature #23223 Add support for microseconds in Stopwatch (javiereguiluz)
+ * feature #22341 [BrowserKit] Emulate back/forward browser navigation (e-moe)
+ * feature #22619 [FrameworkBundle][Translation] Move translation compiler pass (lepiaf)
+ * feature #22620 [FrameworkBundle][HttpKernel] Move httpkernel pass (lepiaf)
+ * feature #23337 [Component][Serializer][Normalizer] : Deal it with Has Method for the Normalizer/Denormalizer (jordscream)
+ * feature #22588 [VarDumper] Add filter in VarDumperTestTrait (maidmaid)
+ * feature #23288 [Yaml] deprecate the !str tag (xabbuh)
+ * feature #23039 [Validator] Support for parsing PHP constants in yaml loader (mimol91)
+ * feature #22431 [VarDumper] Add date caster (maidmaid)
+ * feature #23285 [Stopwatch] Add a reset method (jmgq)
+ * feature #23320 [WebServer] Allow * to bind all interfaces (as INADDR_ANY) (jpauli, fabpot)
+ * feature #23272 [FrameworkBundle] disable unusable fragment renderers (xabbuh)
+ * feature #23332 [Yaml] fix the displayed line number (fabpot, xabbuh)
+ * feature #23026 [SecurityBundle] Add user impersonation info and exit action to the profiler (yceruto)
+ * feature #22932 [HttpFoundation] Adds support for the immutable directive in the cache-control header (twoleds)
+ * feature #22554 [Profiler][Validator] Add a validator panel in profiler (ogizanagi)
+ * feature #22124 Shift responsibility for keeping Date header to ResponseHeaderBag (mpdude)
+ * feature #23122 Xml encoder optional type cast (ragboyjr)
+ * feature #23207 [FrameworkBundle] Allow .yaml file extension everywhere (ogizanagi)
+ * feature #23076 [Validator] Adds support to check specific DNS record type for URL (iisisrael)
+ * feature #22629 [Security] Trigger a deprecation when a voter is missing the VoterInterface (iltar)
+ * feature #22636 [Routing] Expose request in route conditions, if needed and possible (ro0NL)
+ * feature #22909 [Yaml] Deprecate using the non-specific tag (GuilhemN)
+ * feature #23042 Consistent error handling in remember me services (lstrojny)
+ * feature #22444 [Serializer] DateTimeNormalizer: allow to provide timezone (ogizanagi)
+ * feature #23143 [DI] Reference instead of inline for array-params (nicolas-grekas)
+ * feature #23154 [WebProfilerBundle] Sticky ajax window (ro0NL)
+ * feature #23161 [FrameworkBundle] Deprecate useless --no-prefix option (chalasr)
+ * feature #23105 [SecurityBundle][Profiler] Give info about called security listeners in profiler (chalasr)
+ * feature #23148 [FrameworkBundle] drop hard dependency on the Stopwatch component (xabbuh)
+ * feature #23131 [FrameworkBundle] Remove dependency on Doctrine cache (fabpot)
+ * feature #23114 [SecurityBundle] Lazy load security listeners (chalasr)
+ * feature #23111 [Process] Deprecate ProcessBuilder (nicolas-grekas)
+ * feature #22675 [FrameworkBundle] KernelTestCase: deprecate not using KERNEL_CLASS (ogizanagi)
+ * feature #22917 [VarDumper] Cycle prev/next searching in HTML dumps (ro0NL)
+ * feature #23044 Automatically enable the routing annotation loader (GuilhemN)
+ * feature #22696 [PropertyInfo] Made ReflectionExtractor's prefix lists instance variables (neemzy)
+ * feature #23035  Deprecate passing a concrete service in optional cache warmers (romainneutron)
+ * feature #23036  Implement ServiceSubscriberInterface in optional cache warmers (romainneutron)
+ * feature #23022 [Di] Remove closure-proxy arguments (nicolas-grekas)
+ * feature #22903 [DI] Deprecate XML services without ID (ro0NL)
+ * feature #22597 [Lock] Re-add the Lock component in 3.4 (jderusse)
+ * feature #22803 [DI] Deprecate Container::initialized() for privates (ro0NL)
+ * feature #22828 [Finder] Deprecate FilterIterator (ogizanagi)
+ * feature #22826 [Validator] improve strict option value deprecation (xabbuh)
+