Request::get() changed from "GET, PATH, BODY" to "PATH, GET, BODY"ParameterBag::get() is deprecated since version 2.8 and
will be removed in 3.0.JsonResponse::setEncodingOptions() & JsonResponse::getEncodingOptions() for easier manipulation
of the options used while encoding data to JSON format.UploadedFile::isValid now returns false if the file was not uploaded via HTTP (in a non-test mode)\Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionHandler
to ensure the supplied PDO handler throws Exceptions on error (as the class expects). Added related test cases
to verify that Exceptions are properly thrown when the PDO queries fail.Symfony\Component\HttpFoundation\Session and renamed classes accordingly.
Session handlers are located in the subnamespace Symfony\Component\HttpFoundation\Session\Handler.\SessionHandlerInterface or extend from the
Symfony\Component\HttpFoundation\Storage\Handler\NativeSessionHandler base class.\SessionHandler class.NativeSessionStorage and replaced with NativeFileSessionHandler.SessionStorageInterface methods removed: write(), read() and
remove(). Added getBag(), registerBag(). The NativeSessionStorage class
is a mediator for the session storage internals including the session handlers
which do the real work of participating in the internal PHP session workflow.SessionStorage to enable unit
and functional testing without starting real PHP sessions. Removed
ArraySessionStorage, and replaced with MockArraySessionStorage for unit
tests; removed FilesystemSessionStorage, and replaced withMockFileSessionStorage
for functional tests. These do not interact with global session ini
configuration values, session functions or $_SESSION superglobal. This means
they can be configured directly allowing multiple instances to work without
conflicting in the same PHP process.close() method from the Session class, as this is
now redundant.setFlash(), setFlashes()
getFlash(), hasFlash(), and removeFlash(). Use getFlashBag() instead
which returns a FlashBagInterface.Session->clear() now only clears session attributes as before it cleared
flash messages and attributes. Session->getFlashBag()->all() clears flashes now.SessionBagInterface to better encapsulate
session data.SessionBagInterface implementations.FlashBag. Flashes expire when retrieved by get() or all(). This
implementation is ESI compatible.AutoExpireFlashBag (default) to replicate Symfony 2.0.x auto expire
behaviour of messages auto expiring after one page page load. Messages must
be retrieved by get() or all().Symfony\Component\HttpFoundation\Attribute\AttributeBag to replicate
attributes storage behaviour from 2.0.x (default).Symfony\Component\HttpFoundation\Attribute\NamespacedAttributeBag for
namespace session attributes.Session class API remains without BC break as it
will allow single messages as before.getPathInfo(), getBaseUrl() and getBasePath() of
a Request now all return a raw value (vs a urldecoded value before). Any call
to one of these methods must be checked and wrapped in a rawurldecode() if
needed.