Issue #2029537 by Xano, InternetDevels, -enzo- | tsphethean: Replace drupal_sort_weight() with SortArray::sortByWeightElement() and remove drupal_sort_weight().

Issue #1898416 by Cottser, joelpittet, drupalninja99, mikl, drupalmonkey, bradwade, pwieck, ezeedub, kerasai, disasm | c4rl: Filter.module - Convert theme_ functions to Twig.

Issue #1987888 by zengenuity, kim.pepper, disasm, vijaycs85, JB13, dawehner: Convert update_manual_status() to a new style controller.

Revert "Issue #2047633 by dawehner, pwolanin, Xano, amateescu, tim.plunkett: Move definition of menu links to hook_menu_link_defaults(), decouple key name from path, and make 'parent' explicit."

This reverts commit 531fd593.

Issue #2042773 by yched, Berdir, pcambra: Change #items within a theme_field() render array from an *array* to the same $items *object* used throughout the rest of the formatter pipeline.

Issue #2170435 by Xano, EclipseGc: PluginManagerBase::processDefinition() fails when plugin definitions are not arrays.

Issue #1987396 by joelpittet, andypost, jenlampton, Hydra, larowlan, Cottser, brunodbo: Refactor & Clean-up comment.module theme functions.

Issue #2121849 by moshe weitzman: Move chmod.directory and chmod.file out of config and into settings so that file writes are independant of the config system.

Needs more discussion.

This reverts commit 129cd90f.

Revert "Issue #2141539 by yched, JStanton, InternetDevels, blesss: Rename FieldItemListInterface::filterEmptyValues() to filterEmptyItems()."

Conflicts with a beta blocker; rolling back temporarily.

This reverts commit dc4327ba.

Issue #2072995 by claudiu.cristea, yched: Change notice: Move FAPI callbacks for file/image widgets in classes.

Issue #1831608 by smiletrl, penyaskito, swentel, jlbellido, vijaycs85, Gábor Hojtsy, piyuesh23, sun, YesCT | Lukas von Blarer: Show or hide the 'Make field translatable' checkbox on the add field form depending on translatability.

Issue #2141539 by yched, JStanton, InternetDevels, blesss: Rename FieldItemListInterface::filterEmptyValues() to filterEmptyItems().

Issue #2170589 by damiankloip: Use addCollection() in routeBuilder if a RouteCollection is returned from a route_callback.

Issue #2176397 by carsato, InternetDevels: Drupal\Core\Template\TwigTemplate::getContextReference is final.