Issue #2243549 by agerson, cs_shadow | jhodgdon: Text changes needed as follow-up to Menu UI module rename.

Issue #2208609 by sun, Jalandhar, damiankloip: Move Json utility class into Drupal\Component\Serialization.

This reverts commit 07f63fe6.

Issue #2226903 by pwolanin, dawehner, tvn, martin107, jessebeach: Step 1: Move static menu links to yml files.

Issue #2093173 by longwave, Cyberschorsch, forbesgraham, sandipmkhairnar, damiankloip, rbayliss, grom358, harijari, InternetDevels, dawehner: Remove all calls to drupal_json_decode(), use \Drupal\Component\Utility\Json::decode().

Issue #2188565 by Wim Leers, Berdir: Test coverage for Comment, Custom Block, Node, Taxonomy Term and User entity cache tags.

Issue #2179083 by Wim Leers, vijaycs85: Rendered menus (e.g. menu blocks) should set cache tags to inform the page cache.

Issue #460408 by marthinal, gpk, girishmuraly, jojonaloha, david_garcia_garcia, gnindl, nerdcore, acbramley, dotton, Cottser, dww: (regression tests for) Cannot administer menu item/link if it points to an unpublished node.

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

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 #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.

Issue #2136507 by Wim Leers: Use client-side cache tags & caching to eliminate 1 HTTP requests/page for rendering Contextual Links.

Issue #1649780 by effulgentsia, jibran, Wim Leers, nod_, hefox, joelpittet, kaare, BarisW, sun, rbayliss, Cottser, fubhy: Remove first/last/odd/even classes in favor of CSS3 pseudo selectors.

Issue #2084463 by dawehner, pwolanin, David_Rothstein, tim.plunkett, Xano: Convert contextual links to a plugin system similar to local tasks/actions.

Issue #2074037 by Wim Leers, effulgentsia: Add drupalPostUrl() — drupalPost()/drupalPostAjax() are for forms only, D8 JS performs non-form HTTP requests.

Issue #1987814 by juampy, tim.plunkett, lliss, kushrohra: Convert system_admin_menu_block_page() to a new style controller.

Issue #1847002 by tim.plunkett, effulgentsia, msonnabaum: Move entity type classes from Drupal$provider\Plugin\Core\Entity to Drupal$provider\Entity.

Issue #849624 by brad.bulger, Stevel, oriol_e9g, Alan Evans: Fixed wrong permission for admin/structure/menu/parents.

Issue #1868004 by fago, das-peter, Berdir, EclipseGc, fubhy the cat, dixon_: Improve the TypedData API usage of EntityNG.

Issue #1945226 by YesCT, tstoeckler, kfritsche, babruix, IshaDakota, helenkim: Add language selector on menus.

Issue #2014617 by kfritsche, YesCT, tstoeckler: Fixed Unsaved menu links have the wrong bundle (always 'tools').

Issue #2006636 by tim.plunkett: Fixed menu_contextual_links() will always return a link to the MENU_DEFAULT_LOCAL_TASK, never the parent.

Issue #1966298 by das-peter, andypost, Gábor Hojtsy, amateescu, YesCT: Introduce menu link bundles per menus.

Issue #914382 by Wim Leers, Cottser, Gábor Hojtsy, franz, droplet, sun, Niklas Fiekas, catch, dawehner, effulgentsia: Fixed Contextual links incompatible with render cache.

Issue #1927608 by EclipseGc, tim.plunkett, effulgentsia: Remove the tight coupling between Block Plugins and Block Entities.