Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

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

Issue #2394951 by subhojit777, cilefen, Gábor Hojtsy, Kristen Pol, jhodgdon: Page title escaped with HTML markup when editing content translation

Issue #2418031 by BassistJimmyJam, pwolanin, tadityar, Wim Leers: Remove MenuLinkContentForm::doValidate() since the logic was moved to LinkWidget::validateUriElement()

Issue #2417647 by Wim Leers, effulgentsia: Add leading slash to paths within 'user-path:' URIs, to allow 'user-path:' URIs to point to the <none> route

Issue #2349071 by Upchuk, Cottser, pwolanin: EntityStorageException when trying to save a link over the maximum depth

Issue #2418117 by yched: MenuLinkContent::baseFieldDefinitions() wrongly passes default values as a field setting

Issue #2417837 by pwolanin, larowlan, dawehner, kgoel: Update menu link definitions when aliases change

Issue #2417423 by dawehner, kgoel, pwolanin, larowlan: Re-process the user-entered-paths for custom menu links when there is a menu rebuild

Issue #2417793 by effulgentsia, Wim Leers, YesCT, yched, dawehner: Allow entity: URIs to be entered in link fields

Issue #2417877 by pwolanin: Make getDefinition method on menu link content entity public so we can rebuild user paths

Issue #2417809 by YesCT: link and shortcut have baseFieldDefinition settings that do not do anything: default_value max_length

Issue #2416955 by dawehner, YesCT, amateescu, jibran, yched, anavarre: Convert MenuLinkContent to use a link widget

Issue #2406749 by dawehner, YesCT, amateescu, hussainweb, kim.pepper, RavindraSingh, pwolanin, Wim Leers, Gábor Hojtsy, yched, jibran: Use a link field for custom menu link

Issue #1728804 by Berdir: Introduce (Content)EntityDeleteForm and children to handle entity deletions

Issue #2364157 by mpdonadio, dawehner, martin107, Berdir, pcambra, naveenvalecha, tim.plunkett: Replace most existing _url calls with Url objects

Issue #2414047 by dawehner, larowlan: MenuLinkContent calls getUrlInfo('content-translation-overview') when it should be 'drupal:content-translation-overview'

Issue #2368797 by Wim Leers, dawehner, rteijeiro: Optimize ajaxPageState to keep Drupal 8 sites fast on high-latency networks, prevent CSS/JS aggregation from taking down sites and use HTTP GET for AJAX requests

Issue #2281645 by dawehner, andypost: Make entity annotations use link templates instead of route names

Issue #2143729 by tstoeckler, plach, jsbalsera, Berdir, mauzeh, damiankloip, andypost: Entity definitions miss a language entity key

Issue #2230637 by plach, fran seva, yched, swentel: Create a Language field widget and the related formatter

Issue #2355909 by penyaskito, alexpott, Gábor Hojtsy, DuaelFr: language.settings config is not scalable

Issue #2324055 by dawehner, cilefen, znerol: Split up the module manager into runtime information and extension information

Issue #2271419 by alexpott, larowlan: Fixed Allow field types, widgets, formatters to specify config dependencies.

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

Issue #2350915 by pwolanin: Don't require bundle option to be passed in when creating a MenuLinkContent entity.

Issue #2343661 by larowlan, tim.plunkett | xjm: Rename l() to _l() and url() to _url(), and document replacements.

Issue #2343759 by pwolanin, larowlan, dawehner, tim.plunkett, effulgentsia, xjm, Wim Leers: Provide an API function to replace url()/l() for external urls.

Issue #2100343 by Berdir, fago, martin107, visabhishek, sriharsha.uppuluri, Yorirou: Remove 'fieldable' key in entity definitions in favour of 'field_ui_base_route'.

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

Issue #2313757 by Berdir, Wim Leers, dawehner: Remove text_processing option from text fields, expose existing string field types as plain text in UI.