Issue #1904932 by dawehner, damiankloip, YesCT: Fixed Cannot remove a handler from the 'rearrange' popup.
Issue #1912606 by jastraat, gollyg, Cottser, joelpittet: Remove theme_views_view_grouping() function.
Issue #1988614 by aroq: Adjust hook_options_list_alter() example in options.api.php to use ->id() instead of ->id.
Issue #1927608 by EclipseGc, tim.plunkett, effulgentsia: Remove the tight coupling between Block Plugins and Block Entities.
Issue #1823306 by webflo, mkalkbrenner, zuuperman, swentel: Fixed Missing langcode in in hook_field_attach_view_alter().
Issue #1876018 by yannickoo: Displaced space in core/modules/field/lib/Drupal/field/Plugin/views/field/Field.php.
Issue #1975114 by dawehner, ACF: Fixed Views references menu_default_node_menu() variable which doesn't exist anywhere else.
Issue #1827448 by RobLoach, sun, jbrown, tstoeckler: Use __DIR__ instead of DRUPAL_ROOT where possible/sensible.
Issue #1938822 by sandhya.m, EllaTheHarpy, tim.plunkett, alexpott, YesCT: Convert update_status() to a new-style Controller.
Issue #1204784 by Kevin Morse, valthebald, druplet, kiamlaluno: Fix code comment in drupal_retrieve_form
Issue #1957042 by Kevin Morse, foopang, xjm, Fabianx, Cottser: Document why a method in CoreBundle is public static
Issue #1938670 by ParisLiakos, Xano, RobLoach, pp, alexpott: Convert unicode.inc to \Drupal\Component\Utility\Unicode.
Issue #1985386 by yched, Gábor Hojtsy: Crufty 'allowed_values_function_display()' ends up in list field stored config.
Issue #1987604 by Wim Leers: Contextual's use of Drupal.formatPlural() doesn't allow strings to be detected, and minor cleanup.
Issue #1549506 by swentel, pcambra, lbainbridge, muriqui: Fixed Edit and delete links should be hidden for locked fields.
Issue #1986888 by tim.plunkett, agentrickard: Fixed Field UI integration for entity types is brittle.
Issue #1987298 by tim.plunkett, quicksketch: Shorten directory structure and PSR-0 namespacing for plugins.
Issue #1983844 by tim.plunkett, dawehner: Add EntityListController and convert picture.module callbacks to routes/controllers to provide a use-case.
Issue #1987344 by tim.plunkett: NotFoundHttpException thrown in ParamConverterManager results in a WSOD.
