Issue #2293697 by Wim Leers, dawehner, Jo Fitzgerald, clemens.tolboom, vedpareek, tedbow, Munavijayalakshmi, hchonov, alexpott, effulgentsia, tstoeckler, Crell, klausi, EclipseGc: EntityResource POST routes all use the confusing default: use entity types' https://www.drupal.org/link-relations/create link template if available

Issue #2815845 by dawehner, Wim Leers, alexpott, tedbow, Berdir, swentel, webflo: Importing (deploying) REST resource config entities should automatically do the necessary route rebuilding

Issue #2758897 by Wim Leers, damiankloip, larowlan: Move rest module's "link manager" services to serialization module

Issue #2807501 by Wim Leers, dawehner, tstoeckler: ResourceResponse::$responseData is serialized, but is never used: unserializing it on every Page Cache hit is a huge performance penalty

Issue #2427637 by Mile23, keopx, naveenvalecha, marvin_B8: Remove usages of deprecated entity_get_bundles()

Issue #2753681 by tedbow, Wim Leers, dawehner, neclimdul, catch: Move CSRF header token out of REST module so that user module can use it, as well as any contrib module

Issue #2308745 by Alumei, dawehner, Wim Leers, larowlan, Arla, alexpott, g.oechsler, R.Muilwijk, Berdir, catch, klausi, clemens.tolboom, MattA, Crell: Remove rest.settings.yml, use rest_resource config entities

Issue #2286971 by znerol, Berdir, almaudoh, cilefen: Remove dependency of current_user on request and authentication manager

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

Issue #2271251 by ParisLiakos, undertext, JeroenT, StevenPatz, tim.plunkett: Remove usages of watchdog() from non-form and non-controllers.

Issue #2158571 by tstoeckler, dawehner, kgoel, tim.plunkett, catch, effulgentsia: Routes added in RouteSubscribers cannot be altered.

Issue #2011122 by hussainweb, kgoel, chrisjlee: Replace drupal_container() with injected services in the rest module.

Issue #1930020 by dawehner, Berdir, olli: Inject a class into the Core annotated discovery implementation so that namespaces can be updated.