Issue #2312093 by alexpott, yched, andypost, swentel | xjm: Rename FieldInstanceConfig to FieldConfig.

Issue #2063303 by dawehner, damiankloip, Wim Leers: Fixed A Drupal 8 AjaxResponse that must return a 403, returns a 403 and prints 'A fatal error occurred: '

Issue #2309889 by tim.plunkett, dawehner: Fixed DrupalKernel requires a Drupal\Core\*\Plugin directory for annotated classes to be discovered.

Issue #2337927 by effulgentsia, plach, fago: Fixed SqlContentEntityStorage::onFieldStorageDefinition(Create|Update|Delete)() is broken for base fields.

Issue #2334785 by znerol: Remove _maintenance request attribute from SpecialAttributesRouteSubscriber.

Issue #2337847 by alexpott, YesCT, martin107: The negotiated method_id does not need to be sorted on the Language or ConfigurableLanguage object.

Issue #2331079 by znerol, dawehner: Use RouteMatch in access-checks and remove RequestHelper::duplicate().

Issue #2313757 by Berdir, Wim Leers, dawehner: Remove text_processing option from text fields, expose existing string field types as plain text in UI.

Issue #2339665 by larowlan: Fixed EntityForm::submitForm docblock refers to non-existent CommentFormController.

Issue #2319177 by swentel, fago: Fixed Cron lock time limit is too short and does not prevent multiple, concurrent cron runs.

Issue #2337709 by tim.plunkett: Convert form_state_values_clean() to FormStateInterface::cleanValues().

Issue #2260457 by alexpott, beejeebus: Fixed Allow config entities to remove dependent configuration keys when dependencies are deleted due to module uninstall.

Issue #2333113 by effulgentsia, plach: Add an EntityDefinitionUpdateManager so that entity handlers can respond (e.g., by updating db schema) to code updates in a controlled way (e.g., from update.php).

Issue #2337735 by leslieg, cilefen: ConfigImporter::finish() reads 'Finalising configuration synchronisation.', is UK English.

Issue #2337591 by swentel, mikeker: Fixed Install failure on Windows: ThirdPartySettingsTrait::getThirdPartySetting not compatible with ThirdPartySettingsInterface::getThirdPartySetting error during install.

Issue #2334763 by alexpott: Tidy up of LanguageInterface - removal of setters and other unnecessary methods.

Issue #2333501 by swentel | marcvangend: Implement ThirdPartySettingsInterface in EntityView|FormDisplay.

Issue #2337833 by martin107 | YesCT: Return should not have a variable name in LanguageMangagerInterface.

Issue #2199637 by Berdir, sun, swentel: Replace "required" flag of Field module with proper dependencies.

Issue #2336443 by almaudoh: NumericItemBase uses '#type' => 'textfield' for numeric 'min' and 'max' form fields.

Issue #2334689 by er.pushpinderrana | joachim: Fixed lock_acquire() should give the character limit for the lock name.

Issue #1854284 by Berdir, mikeryan | Dave Reid: Fixed Path aliases are no longer arrays and cannot pass additional data to path hooks.

Issue #2330279 by znerol: Fixed When operating in mixed mode SSL: data from anonymous non-HTTP session is still available after login.

Issue #1182850 by xjm, Stefan Lehmann, jmcintyre, Bojhan: Remove full stops at the end of checkbox options.

Issue #2335659 by tim.plunkett, dawehner, effulgentsia, sun: Remove FormState ArrayAccess usage from core.

Issue #2336405 by tim.plunkett: Fixed Follow-up: FormStateInterface::getGroups() should return by reference.

Issue #2334405 by almaudoh, drunken monkey: Clean up documentation links to functions moved to render element classes