Issue #2371457 by DuaelFr: Replace inappropriate translatatable string in core/modules/contextual/contextual.module.

Issue #2371759 by angel.angelio | cilefen: The docblock for user_help() should read "Implements hook_help().".

Issue #2371479 by DuaelFr: Replace inelegant string in core/lib/Drupal/Core/Database/Install/Tasks.php.

Issue #2353013 by bertramakers, oenie, crazyrohila: Remove taxonomy_term_load_parents_all from taxonomy/taxonomy.module.

Issue #2371841 by tim.plunkett | benjy: Fixed FullPageVariant::$mainContent must always be an array.

Issue #2278415 by G-raph, Upchuk, Karmen, JamesLefrère, herom | emma.maria: Fixed Bartik dropbutton styling looks bad.

Issue #920056 by Dave Reid, andypost, quietone, rkjha, Alumei: Fixed [comment:name] duplicates [comment:author], and the latter should use format_username().

Issue #2347787 by andrei.dincu | cosmicdreams: Fixed Content Type edit form always displays "Don't display post information".

Issue #2368975 by damiankloip: Fixed ElementInfoManager::buildInfo() processes info data on every request.

Issue #2367579 by tim.plunkett, chx: Fixed Move retrieval of visible blocks to a standalone service.

Issue #2350507 by hussainweb, hctom, jbrown: Fixed \Drupal\Core\Url has no __toString() magic method.

Issue #2347511 by davidhernandez, lauriii, rpayanm, kasn: Add method to test if class attribute has class on Attribute object.

Issue #2370005 by olli: Fixed Remove link in views ui grouped filter and rearrange fields/sorts does not work.

Issue #2369933 by amateescu: Fixed Remove references to an exception class that doesn't exist (\Drupal\entity_reference\Exception\MissingDefaultValueException).

Issue #2321701 by Temoor, rpayanm: Replace all instances of contact_form_load(), entity_load('contact_form') and entity_load_multiple('contact_form') with static method calls.

Issue #2362205 by Devin Carlson | dawehner: Fixed admin/theme/install|update should point to admin/appearance/update|install.

Issue #2215507 by Devin Carlson, pfrenssen, SiliconMind: Fixed Downloads broken for translated private files.

Issue #365615 followup by attiks, YesCT, Gábor Hojtsy, mgifford, Albert Volkman, plach, webwarrior, David_Rothstein, penyaskito, smokris | yang_yi_cn: Fixed Followups: Language detection not working correctly for most Chinese readers (and add a user interface for all browser language mappings).

Issue #2267551 followup by jfhovinne: [meta] Deal with PHP requirement vs. Debian PHP version numbering.

Issue #2364171 by Gábor Hojtsy, penyaskito: Fixed Enabling and configuring content language negotiation does not work at once.

Issue #2368443 by amateescu: Use the new FallbackPluginManagerInterface in ER's selection plugin manager.

Issue #2268753 by amateescu, larowlan, mikemiles86: Fixed Cleanup EntityReferenceController's create() method.