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

Issue #2478483 by Wim Leers, Fabianx: Introduce placeholders (#lazy_builder) to replace #post_render_cache

Revert "Issue #2458817 by Berdir, dawehner: Creating new user entities for anonymous users is very slow"

This reverts commit fcbb3c0c.

Issue #2273923 by mpdonadio, pfrenssen, effulgentsia, pcambra, xjm, tim.plunkett, martin107, cilefen: Remove html => TRUE option from l() and link generator

Revert "Issue #2273923 by mpdonadio, pfrenssen, dawehner, xjm, cilefen: Remove html => TRUE option from l() and link generator"

This reverts commit 0bcabf50.

Issue #2273923 by mpdonadio, pfrenssen, dawehner, xjm, cilefen: Remove html => TRUE option from l() and link generator

Issue #2322509 by prics, cilefen, gaurav.goyal, harijari, Temoor: Replace all instances of node_load(), node_load_multiple(), entity_load('node') and entity_load_multiple('node') with static method calls.

Issue #2341341 by YesCT, martin107, vijaycs85, fran seva: Change public 'name' property access on languages to getName() and add back setName().

Issue #2342683 by David Hernández, dawehner: Fixed NodeViewBuilder should use static where possible, subclassing is currently too painful.

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

Issue #2226493 by Berdir, Wim Leers, m1r1k, mr.baileys, andypost, scor, cbr, joelpittet: Apply formatters and widgets to Node base fields.

Issue #2271349 by Berdir, Arla, blueminds, larowlan, Dave Reid: Node and Comment ops links should be display components (which can be disabled).

Issue #2099131 by jessebeach, Wim Leers, catch, Berdir, benjifisher, martin107, andypost: Use #pre_render pattern for entity render caching.

Issue #2149649 by Gábor Hojtsy, YesCT, Xano, herom, vijaycs85, Sweetchuck, plach: Entity rendering/theming does not use the active entity language to render links.

Issue #2161177 by plopesc, yched: 'language' extra field doesn't display the language selected in the node form.

Issue #2078387 by Xano, andypost, twistor, splatio, InternetDevels, amateescu, Berdir, larowlan, vladan.me: Add an EntityOwnerInterface.

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

Issue #1862202 by plach, Berdir, katbailey, ParisLiakos, alexpott, chx, sun, larowlan, Gábor Hojtsy, cosmicdreams, vijaycs85, YesCT, penyaskito, andypost, Albert Volkman, joelpitett: Objectify the language system.

Issue #2031725 by fgm, fago, vladan.me, Nebel54, Berdir: Move all entity display interfaces to the core component.

Issue #2151439 by Wim Leers: Run node op links through #post_render_cache to prevent render caching granularity being

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

Issue #1912992 by swentel, beretta627, amateescu, mitron: Fixed Language Field gets 'Stuck' after Title.

Issue #1605290 by amateescu, msonnabaum, Caseledde, damiankloip, beejeebus, catch, Berdir, Wim Leers: Enable entity render caching with cache tag support.

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

Issue #2062589 by sergeypavlenko: Remove Unused local variable $key from /core/modules/node/lib/Drupal/node/NodeRenderController.php.

Issue #1363112 by mparker17, mgifford, tlattimore, Jacine, dcmouyard, bowersox, ry5n, ahdiaz: Simplify names of 'element-x' helper classes.

Issue #1874664 by Wim Leers, jessebeach, tkoleary, Gábor Hojtsy, quicksketch, Bojhan: Reconcile 'Edit' toolbar option with local tasks (tabs) and contextual links for editing.

Issue #1292470 by sun, tim.plunkett, Berdir, moshe weitzman, pcambra, Niklas Fiekas, andypost et al: Convert user pictures to Image Field.