Issue #2442721 by daffie, mgifford: Direct access to the variable $parent in Drupal\Core\Field\FieldItemBase::getLangcode()

Issue #2633308 by dawehner, mparker17, Wim Leers, Fabianx: Views cache contexts are lost (and thus do not bubble) when rendering a view's block display

Issue #2553553 by burkeker, alvar0hurtad0, meramo: Remove references to system.module.css and system.theme.css in core

Issue #2633644 by rlhawk, mondrake, r_sharma08: Correct empty text does not display when there are no image styles

Issue #2267039 by aerozeppelin, joachim: UnsupportedDataTypeConfigException doesn't say which config file the problem is

Issue #2657096 by xjm: Provide a link to the experimental module policy in the status report warning

Issue #2587275 by swentel, Sharique, cilefen, ivanjaros, Dave Reid, Berdir: Invalid token used in user email notification

Issue #2643274 by swentel, Mac_Weber, amateescu: EntityAutocomplete does not recognize URLs ending with a parenthesis

Issue #2649892 by alexpott, mikey_p: Should typehint against DateFormatterInterface and not DateFormatter

Issue #2613400 by zaurav, valthebald, dawehner, tim.plunkett: Remove Drupal\Core\EventSubscriber\RouterRebuildSubscriber

Issue #2616816 by dawehner, Jaesin: Views aggregation: Grouping a field that doesn't exist on all bundles causes an error

Issue #2642362 by alexpott, chrisfree, Manjit.Singh: Animation of throbber-active.gif image is broken

Issue #376391 by mimran, snehi: Document that module_invoke_all / ModuleHandlerInterface::invokeAll reindexes arrays

Issue #2653692 by TravisCarden: Table form element usage example refers to non-existent "#title" element

Issue #2630162 by felribeiro, pguillard, pingwin4eg, karsumit94: The Edit URL Alias form buttons should be styled in consistency with other buttons

Issue #2604484 by quietone, dobe, drclaw, skyredwang, mikeryan, grahl: Migrate Drupal 7 image and file fields

Issue #2641430 by googletorp, sudhanshug, priya.chat: Typo/spelling error in LoggerChannelFactoryInterface

Issue #2402165 by joelpittet, hass, madhavvyas: #theme => 'links' renders <li class="_"> when the #links array is not associative

This reverts commit 5f7cb311.

Issue #2307141 by mbaynton, mgifford, Wim Leers: Enable browsers' (native) spell checker in CKEditor