Issue #2940121 by apaderno, andypost, idebr, Kingdutch, kala4ek, mfb, alexpott, Berdir: ConfigurableLanguageManager::getLanguageSwitchLinks() doesn't respect what LanguageManagerInterface::getLanguageSwitchLinks() says to return

Issue #3100251 by Hardik_Patel_12, longwave: Several code comments have incorrect namespaces for classes or interfaces they reference

Issue #2940038 by Sweetchuck, drunken monkey, rajeshwari10, borisson_: Use $this in @return PhpDoc comments instead of the name of the current class or interface

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

Issue #2571375 by alexpott, webflo, stefan.r, Xano, mr.baileys: Remove TranslationManager dependency from LanguageManager

Issue #2457551 by Gábor Hojtsy, rteijeiro, keopx, eiriksm, alexpott: Regression: optional default configuration is not translatable anymore in locale

Issue #2226533 by martin107, filijonka, YesCT, Xano, jmolivas, Chris Dart, alexpott, tstoeckler, visabhishek | csg: Changes to the Language class due to the LanguageInterface (followup).

Issue #2347465 by tim.plunkett, dawehner, cilefen: Convert all instances of #type link/links to convert to use routes.

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

Issue #2107427 by penyaskito, dclavain, Gábor Hojtsy, mashermike, Aron Novak, YesCT, szato, Wim Leers, mikispeed, vijaycs85: Fixed Regression: Language names should display in their native names in the language switcher block.

Issue #2037979 by Gábor Hojtsy, Sweetchuck, jhodgdon, dawehner: Fixed 'Current user's language' views filter label is named very misleading.

Issue #2240459 by Gábor Hojtsy, penyaskito | LoMo: Fixed Applying default language fallback rules to interface translation has impressively bad results.

Issue #2246665 by jaredsmith, martin107, YesCT, filijonka, tstoeckler: Typehint with Drupal\Core\Language\LanguageInterface instead Drupal\Core\Language\Language.

Issue #2240463 by robertdbailey, balagan, holly.ross.drupal: Fix text: languages are not "enabled/disabled" anymore, they are added/removed.

Issue #2239407 by holly.ross.drupal, YesCT, tstoeckler, alimac: Language manager interface should not specify implementation details for getLanguages on the interface.

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

Issue #1862202 by plach, Berdir, katbailey, ParisLiakos, alexpott, chx, sun, larowlan, Gábor Hojtsy, cosmicdreams, vijaycs85, YesCT, penyaskito, andypost, Albert Volkman, joelpitett: Objectify the language system.