Issue #3405800 by alexpott, phenaproxima, Wim Leers, bircher, larowlan: Config collections do not trigger configuration events consistently

Issue #3328443 by xjm, rpayanm, alexpott, catch, longwave: Replace most strpos() === 0 or !== 0 with str_starts_with()

Issue #3232097 by daffie, longwave: [Symfony 6] Add "array" type hint to methods overriding Symfony\Component\EventDispatcher\EventSubscriberInterface::getSubscribedEvents()

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 #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 #3138718 by sja112, longwave, dww, xjm, alexpott: Convert British English spellings to American English, for the umpteenth time

Issue #2955457 by pfrenssen, Chewie, unrealauk, alexpott, Pol: ConfigFactory static cache gets polluted with data from config overrides

Issue #2901726 by mfernea, gmario, finn.lewis, robertoperuzzo, rachel_norfolk: Fix 'Squiz.Functions.MultiLineFunctionDeclaration' coding standard

Issue #2854529 by alexpott, xjm, klausi, Chi, Mixologic: Fix Drupal.Scope.MethodScope - all methods should have scopes

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 #2572693 by Mile23, andriyun, andypost, attiks: Fix 'Drupal.ControlStructures.ControlSignature' coding standard

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

Issue #2598232 by Berdir, alexpott, juanse254: ConfigFactory::get() pollutes ::loadMultiple() static cache with new config objects

Issue #2524082 by pfrenssen, Gábor Hojtsy, Wim Leers, Berdir, Fabianx, dawehner, catch: Config overrides should provide cacheability metadata

Issue #2406543 by alexpott: Remove ConfigFactory::setOverrideState and ConfigFactory::getOverrideState()

Issue #2392319 by alexpott, effulgentsia: Config objects (but not config entities) should by default be immutable

Issue #2040135 by Wim Leers, Berdir: Caches dependent on simple config are only invalidated on form submissions

Issue #2346187 by Yaron Tal | tstoeckler: ConfigFactory and CongfigFactoryInterface should be @ingroup config_api.

Issue #2312135 by effulgentsia: Rename and protect ConfigFactory::getCacheKey(s)(); add a separate ConfigFactoryInterface::getCacheKeys().

Issue #2271967 by Jose Reyero, alexpott, amitgoyal: Fixed and use TypedConfigManagerInterface/TypedConfigManager.

Issue #2227187 by Mykhailo Gurei, Jalandhar, cs_shadow, mandar.harkare | Berdir: Stop refering to config storage as storage controller.

Issue #2219499 by Berdir, alexpott, Gábor Hojtsy, vijaycs85, swentel: Generalize language config override responsibility.

Issue #2215503 by Gábor Hojtsy, Wim Leers: Use services instead of event subscribers for config module overrides.

This reverts commit f2769f4d.

Issue #2098119 by beejeebus, alexpott, chx: Replace config context system with baked-in locale support and single-event based overrides.

Issue #2130811 by alexpott, Gábor Hojtsy, vijaycs85, sun, Wim Leers: Use config schema in saving and validating configuration form to ensure data is consistent and correct.