Issue #1170362 by alexpott, catch, pillarsdotnet, sun, jofitz, geerlingguy, steinmb, tresti88, DamienMcKenna, dpovshed, imclean, bradjones1, mErilainen, David_Rothstein, KarenS, BTMash, rickmanelius, Anonymous, smustgrave, Wim Leers, kreynen, webchick, websiteworkspace, phenaproxima, Kiphaas7, bbrala: Install profile is disabled for lots of different reasons and core doesn't allow for that

Revert "Issue #3414993 by alexpott: Add ConfigImporter to \Drupal\Core\Config\Importer\MissingContentEvent"

This reverts commit eafa8564.

Issue #3406929 by alexpott, quietone, bircher, borisson_, Wim Leers: Configuration being imported by the ConfigImporter sometimes has stale original data

Issue #3405798 by alexpott, bircher: Config deleted during import does not have correct initial values set

Issue #3396197 by alexpott, BramDriesen, borisson_: Config saved during import does not have correct initial values set

Issue #2958649 by acbramley, moshe weitzman, fenstrat: Incorrect totals count when importing config that contains a theme uninstall

Issue #3001430 by alexpott, _utsavsharma, Oscaner, lauriii, smustgrave, ifux, deviantintegral, pameeela: Unable to uninstall base theme and subtheme via config sync at the same time

Issue #3318581 by andypost, alexpott: FIx \Drupal\Core\Config\ConfigImporter::doSyncStep() to accept callable

Issue #3312001 by stijndmd, ravi.shankar, davidjguru, longwave, catch: Race condition with automatic deploy steps on ConfigImporter

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 #2392815 by alexpott, pooja saraah, bircher, cilefen, pratik_specbee, catch, fago: Module uninstall validators are not used to validate a config import

Issue #3284270 by alexpott, bircher: Reset \Drupal\Core\Config\ConfigImporter::$errors in ::validate() method

Issue #2719649 by Spokje, harsha012, jofitz, vprocessor, nikitagupta, cburschka, rasikap, hitesh-jain, quietone, longwave, mfernea, andypost, klausi, Malevi4, crazyrohila: Fix 'Drupal.Commenting.InlineComment.SpacingBefore' coding standard

Issue #3161983 by catch, longwave, Pooja Ganjage, sanjayk, daffie, Kristen Pol, dww, Gábor Hojtsy: [Symfony 6] Update EventDispatcherInterface type hints in constructors

Revert "Issue #3161983 by Pooja Ganjage, sanjayk, catch, longwave, daffie, dww, Gábor Hojtsy: [Symfony 6] Update EventDispatcherInterface type hints in constructors"

This reverts commit a9cee683.

Issue #3161983 by Pooja Ganjage, sanjayk, catch, longwave, daffie, dww, Gábor Hojtsy: [Symfony 6] Update EventDispatcherInterface type hints in constructors

Issue #2851394 by GoZ, hgunicamp, oknate, jungle, wolffereast, tameeshb, mmatsoo, ridhimaabrol24, jofitz, swarad07, tanc, shaktik, dimaro, shashikant_chauhan, MerryHamster, quietone, nitesh624, martin_q, boaloysius, gaurav.kapoor, nitvirus, ankithashetty, Munavijayalakshmi, kostyashupenko, leolando.tan, amit.drupal, ravi.shankar, akashkrishnan01, Swapnil_Kotwal, Saviktor, mrinalini9, anmolgoyal74, Venkatesh Rajan.J, shimpy, lomasr, Dinesh18, shubham.prakash, mahtab_alam, markdorison, cilefen, longwave, bleen, xjm, alexpott, gmaltoni: Fix grammar 'a' to 'an' when necessary

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 #3112639 by alexpott, himmatbhatia, swatichouhan012, longwave, andypost, Hardik_Patel_12, Gábor Hojtsy, Berdir, catch: Remove all @deprecated code from config component

Issue #2940038 by Sweetchuck, drunken monkey, rajeshwari10, borisson_: Use $this in @return PhpDoc comments instead of the name of the current class or interface

Issue #2776031 by fgm, andypost, voleger, yogeshmpawar, Berdir, joachim: Properly deprecate ThemeHandlerInterface install() and uninstall() also replace usage

Issue #2926068 by almaudoh, andypost, voleger, claudiu.cristea, Oleksiy, YurkinPark, yo30, alexpott, dawehner, Berdir: Deprecate system_rebuild_module_data() and remove usages in core

Issue #2624770 by 20th, Jo Fitzgerald, claudiu.cristea, Berdir, mohit1604, amateescu, Sutharsan, derheap, Saviktor, Mile23, dawehner, kristiaanvandeneynde, alexpott: Use more specific entity.manager services in core.services.yml

Issue #2788777 by alexpott, bircher, jribeiro, Eli-T, mpotter, douggreen, GoZ, DamienMcKenna, Dane Powell, jibran, szeidler, Alumei, andypost, dawehner, johndevman: Allow a site-specific profile to be installed from existing config

Issue #2908952 by sahil432, martin107: drupal_get_complete_schema() and drupal_get_schema() are not completely removed

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 #2711645 by alexpott, dawehner: ConfigInstaller::isSyncing() should return true always during a config sync

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

Issue #2486467 by alexpott, mtift, tim.plunkett: Single config import form needs to use the config validation events

Issue #2599524 by blackra, krknth, jhodgdon, rhett.prichard: Fixing order of documentation sections for /core/lib/Drupal

Issue #2487588 by YesCT, Leksat, Schnitzel, alexpott, anavarre, xjm: Move CMI import/export directory "staging" to "sync", as it is confused with staging environments

Issue #2568775 by dawehner, lauriii, alexpott, joelpittet, xjm: Replace remaining !placeholder for Non-URL HTML outputs only for $e->getMessage()

Issue #2564353 by alexpott, joelpittet, xjm, justAChris, nlisgo, subhojit777: Remove !placeholder usage from SafeMarkup::format()