Issue #2173527 by idflood, scresante, rpayanm, mgifford, Sam152, Wim Leers: The Menu-Toolbar area should be refactored so that Tray items are nested in the same container as their associated parent Toolbar item

Issue #2364467 by Mile23, neclimdul: SpecialAttributesRouteSubscriber::onAlterRoutes() doesn't return a value

Issue #2421663 by timmillwood, dmitrii, amateescu, dawehner, xjm: Statistics module installs {node_counter} even if Node is uninstalled

Issue #2533964 by edurenye, Berdir, Gábor Hojtsy: Langcode widget visibility settings from language.module are not applied consistently

Issue #2544830 by jhedstrom, jhodgdon: Views search filter needs additional WHERE on search_index table

Issue #2544122 by harjotsingh: Missing leading backslash in documentation for \Drupal\views\ViewExecutable::setResponse

Issue #2541432 by Wim Leers: Follow-up for #2231595: Document why ChainedFastBackend cannot use BackendChain

Issue #1949032 by irfworld, geertvd, dawehner: Add a message when a view saved during wizard creation

Issue #2539682 by borisson_, Wim Leers: Add test to ensure composer.json is listing all core modules

Issue #2426969 by David_Rothstein, joelpittet, dawehner: Dynamic redirects are no longer possible in the batch API (breaks updating existing modules or themes with the Update Manager)

Issue #2501455 by Cottser, alexpott, akalata: Remove SafeMarkup::set() in drupal_render_children() and replace it with SafeString

Issue #1639012 by nod_, corbacho, sun, droplet, seutje, tim.plunkett: Guard against broken behaviors

Issue #2461013 by Berdir, keopx, Denchev, Gábor Hojtsy, xjm: Trying to display not specified or not applicable languages with LanguageFormatter results in fatal error

Issue #2540438 by znerol, timmillwood: Invalid format string when falling back to error_log in _drupal_log_error()

Issue #2455125 by mpdonadio, rteijeiro, jhodgdon, dawehner: Update EntityViewsData use of generic timestamp to use Field API formatter

Issue #2525908 by alexpott, cilefen: HtmlTag render element's prefix and suffix can be marked safe when they are not

Issue #2543332 by Wim Leers, effulgentsia, Fabianx, Crell, dawehner, borisson_: Auto-placeholdering for #lazy_builder without bubbling

Revert "Revert "Issue #2510104 by pwolanin, nod_, Fabianx, Wim Leers, droplet, Pere Orga: Convert drupalSettings from JavaScript to JSON, to allow for CSP in the future""

This reverts commit e8e883f9.

Issue #2503861 by phenaproxima, benjy, alexpott, mikeryan: Migrate file_managed table to file entities

Issue #2546176 by alexpott: Use SafeStrings to communicate safeness in drupal_set_message and remove SafeMarkup::set()

Issue #2502781 by tedstein, johnshortess, joelpittet, pwolanin, stefan.r, chx, mandclu, RavindraSingh, YesCT, cilefen, xjm, lauriii: Remove SafeMarkup::set in template_preprocess_file_widget_multiple()

Issue #2541336 by borisson_: Docblock cleanup: missing backslash for FilterResponseEvent in FinishResponseSubscriber

Issue #2538274 by pwolanin, Wim Leers, dawehner: DbUpdateController has broken mainteneance mode logic, and update.php doesn't run due to aggregated JS assets

Issue #1364670 by mondrake, mrfelton, dinarcon, das-peter, zuuperman, er.pushpinderrana, cchanana, drupaldrop, fietserwin: ImageStyle::transformDimensions unable to deal with all effects