Issue #2909185 by longwave, donquixote, andypost, andregp, pounard, jibran, martin107, kostyashupenko, catch, znerol: Replace ContainerAwareEventDispatcher with Symfony EventDispatcher

Issue #3419693 by mondrake, alexpott, smustgrave, catch: Log error instead of trigger_error in Drupal\Core\EventSubscriber\RedirectResponseSubscriber::checkRedirectUrl

Issue #3353210 by mondrake, PrabuEla, Spokje: [PHPUnit 10] @dataProvider methods must be declared static and public

Issue #3217716 by sudiptadas19, Meenakshi_j, hmendes, guilhermevp, mondrake: Replace usages of expectException(Error::class), that is deprecated

Issue #3133162 by jungle, ravi.shankar, Deepak Goyal, Neslee Canil Pinto, anmolgoyal74, xjm, Kristen Pol: Replace the start verb Test with Tests in method comments of tests

Issue #3055194 by catch, mikelutz, longwave, mkalkbrenner, hchonov: [Symfony 5] The signature of the "Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::dispatch()" method should be updated to "dispatch($event, string $eventName = null)", not doing so is deprecated since Symfony 4.3

Issue #3094398 by martin107, alexpott, andypost, klausi: Update Symfony response and request events to new classes

Issue #3107732 by mondrake, longwave, swatichouhan012, salah1, xjm, catch, alexpott, Berdir: Between April 13 and April 17, 2020: Add return typehints to setUp/tearDown methods in concrete test classes

Issue #3081582 by mkalkbrenner: EventSubscriber/RedirectResponseSubscriberTest must not use the Symfony EventDispatcher but Drupal's

Issue #3073318 by Spokje, Mile23, mondrake: Remove usages of \PHPUnit_Framework_MockObject_MockObject

Issue #3059090 by clepson, mondrake, alexpott: Deprecate \Drupal\Tests\PhpunitCompatibilityTrait::setExpectedException()

SA-CORE-2018-006 by alexpott, attilatilman, bkosborne, catch, bonus, Wim Leers, Sam152, Berdir, Damien Tournoud, Dave Reid, Kova101, David_Rothstein, dawehner, dsnopek, samuel.mortenson, stefan.r, tedbow, xjm, timmillwood, pwolanin, njbooher, dyates, effulgentsia, klausi, mlhess, larowlan

Issue #2822837 by vaplas, martin107, chiranjeeb2410, klausi, dawehner: Replace @expectedException @expectedExceptionMessage with $this->setExpectedException

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2575869 by pwolanin, Wim Leers, JeroenT, dawehner, YesCT: Remove all remaining usage of deprecated UrlGeneratorInterface::generateFromPath() and delete it

Issue #2507831 by dawehner, tim.plunkett, effulgentsia: Harden redirect responses to make external URIs opt in (was SA-CORE-2015-002 foward-port)

Issue #2335661 by Wim Leers, pwolanin, dawehner, Fabianx, larowlan, catch, Berdir: Outbound path & route processors must specify cacheability metadata

Issue #2455083 by dawehner, larowlan, klausi, David_Rothstein, hefox, tsphethean, dstol, DamienMcKenna, Pere Orga, benjy: Open redirect fixes from SA-CORE-2015-001 need to be ported to Drupal 8

Issue #2350837 by dawehner, Berdir, larowlan, Wim Leers: Convert most usages of EntityInterface::getSystemPath() to use routes

Issue #697760 by sun: Replace getInfo() in tests with native phpDoc + annotations (following PHPUnit).

Issue #2076325 by neclimdul, Mile23, alexpott: Fixed Drupal\Component\Utility\Url::externalIsLocal() is wrong in common cases.