Issue #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

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

Issue #2686765 by sidharthap, thhafner: cacheUntilEntityChanges() is deprecated and should be replaced with addCacheableDependency()

Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2486177 by disasm, amateescu, plach, Pere Orga, piyuesh23, webchick, Saphyel, dawehner, jibran, YesCT, yched, xjm, Gábor Hojtsy, Bojhan: Deleting an entity translation from the UI deletes the whole entity

Issue #2428703 by Wim Leers: Add a 'user.permissions' cache context (was: "Should cache contexts be able to associate a cache tag?")

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

Issue #2188675 by Gábor Hojtsy, marthinal, fran seva, robertdbailey, Jalandhar, vijaycs85, dlu, kfritsche, YesCT, pfrenssen: Fixed Translate local task always visible, leads to WSOD.

Issue #1976158 by Berdir | msonnabaum: Rename entity storage/list/form/render "controllers" to handlers.

Issue #1987882 by disasm, vijaycs85, penyaskito, kim.pepper, likin, YesCT, InternetDevels, dawehner, wamilton, Letharion, katbailey, googletorp, tim.plunkett, acrollet, neetu morwani: Convert content_translation routes to a new style controller.

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