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

Issue #3109970 by znerol, andypost, Prashant.c, daffie, Wim Leers, dww, catch: Convert uses of $_SESSION in forms and batch

Issue #3109971 by andypost, znerol: Use $this->request in ViewsExecutable::getExposedInput() consistently

Issue #2961380 by alexpott, manishsaharan, borisson_, kim.pepper, znerol: Support IteratorArgument in \Drupal\Component\DependencyInjection\Dumper\OptimizedPhpArrayDumper::dumpValue

Issue #2484991 by znerol, voleger, andypost, dww, anmolgoyal74, markdorison, ankithashetty, larowlan, daffie, alexpott: Add the session to the request in KernelTestBase, BrowserTestBase, and drush

Revert "Issue #2484991 by znerol, voleger, andypost, dww, anmolgoyal74, markdorison, ankithashetty, daffie, alexpott, larowlan: Add the session to the request in KernelTestBase, BrowserTestBase, and drush"

This reverts commit 48a7cf12.

Issue #2484991 by znerol, voleger, andypost, dww, anmolgoyal74, markdorison, ankithashetty, daffie, alexpott, larowlan: Add the session to the request in KernelTestBase, BrowserTestBase, and drush

Issue #3165762 by znerol, Berdir, jungle, AdamPS, longwave, smustgrave, imclean, catch, dpi: Add symfony/mailer into core

Issue #3393072 by znerol: Ensure Unit tests in phpass run and remove unneeded LegacyPasswordHashingTest::testInvalidArguments

Issue #3377256 by elber, znerol, smustgrave, longwave, jungle, andypost: Correctly implement SessionHandlerInterface

Issue #3375959 by znerol, catch, bradjones1: Add a way to delay executions in test runner until terminate event completed in the child site

Issue #2536052 by znerol, jungle, Rishi Kulshreshtha, smustgrave, alexpott, dawehner, quietone: Remove try...catch from SessionHandler::write

Issue #3375584 by znerol, longwave, Spokje: [random test failure] Random failure in PathWorkspacesTest

Issue #3108020 by bonrita, Cyberwolf, sagarchauhan, znerol, borisson_: Support ServiceClosureArgument in \Drupal\Component\DependencyInjection\Dumper\OptimizedPhpArrayDumper::dumpValue

Issue #3374394 by phenaproxima, Wim Leers, borisson_, dawehner, znerol: Add validation constraints to _core_config_info

Issue #3358402 by totten, lisotton, jensschuppe, larowlan, znerol: [regression] route defaults are now automatically route parameters

Issue #1845004 by znerol, claudiu.cristea, Spokje, neclimdul, VladimirAus, slasher13, tvb, pwolanin, NivethaSubramaniyan, pradhumanjainOSL, Ratan Priya, longwave, catch, Crell, andypost, xjm, dawehner, voleger, alexpott, Berdir, klausi, DamienMcKenna, mfb, borisson_, Jalandhar, mohit1604, mcdruid: Replace custom password hashing library with PHP password_hash()

Issue #3150614 by pfrenssen, cilefen, murilohp, FinnishFlash, mpp, andypost, ranjith_kumar_k_u, vagelis-prokopiou, rpayanm, tsplash, blazey, Winn, znerol, alexpott, Berdir, mxr576, catch, anagomes: Set SameSite on session cookies

Issue #3331835 by Spokje, znerol, smustgrave, murilohp, bircher: Some JavaScript errors are not recorded during test runs

Issue #3305706 by znerol, SandeepSingh199, ivnish, smustgrave, Spokje, økse, ranjith_kumar_k_u, coffeemakr, DavorHorvacki: Uncaught TypeError: this.$pluginSelect.find(...)[0] is undefined

Issue #3324384 by Spokje, joachim, elber, znerol, longwave, mondrake: resolve differing createUser() test methods

Issue #3260652 by rpayanm, lind101, bserem, davisben, ravi.shankar, Peleccotur, neverstopscrolling, znerol, cilefen, xjm, alexpott, smustgrave, Problue Solutions: Feature "Remember the last selection" for views exposed filters doesn't work anymore

Issue #3327856 by alexpott, catch, zcht, longwave, znerol, Berdir, BramDriesen, Spokje, callen321, andypost, neclimdul, acbramley, mstrelan: Performance regression introduced by container serialization solution

Issue #2531564 by neclimdul, andypost, chx, cburschka, Spokje, pdenooijer, Charlie ChX Negyesi, znerol, dawehner, longwave, Fabianx, geek-merlin, catch, alexpott: Fix leaky and brittle container serialization solution

Issue #2430379 by quietone, znerol, larowlan: Add explicit test for session based language negotiation

Issue #2473875 by znerol, alexpott, andypost, kim.pepper, amit.drupal, raman.b, martin107, joachim: Convert uses of $_SESSION to symfony session retrieved from the request

Issue #2342807 by Lendude, znerol, Kristen Pol: DisplayPathTest methods enable menu_ui module when it is already enabled

Issue #2238561 by alexpott, dawehner, andypost, bradjones1, ridhimaabrol24, jofitz, eiriksm, Darren Oh, kalyansamanta, znerol, neclimdul, catch, pwolanin: Use the default PHP session ID instead of generating a custom one

Issue #2575827 by msuthars, paulocs, ayushmishra206, hitesh-jain, znerol, mindbet, longwave, alexpott, dawehner: Use RouteMatch instead of request attributes in book navigation block

Issue #3041076 by alexpott, shaal, Gábor Hojtsy, lauriii, Wim Leers, catch, Cottser, jibran, andypost, znerol, xim, joelpittet, effulgentsia: Update Drupal 9 to Twig 2