Issue #2395831 by dawehner, fago, martin107, cafuego, YesCT, plach, jibran, larowlan, Wim Leers, effulgentsia, klausi: Entity forms skip validation of fields that are not in the EntityFormDisplay

Issue #2418119 by Berdir, jhedstrom, larowlan, martin107, nlisgo, klausi, fago, Gábor Hojtsy: REST user updates bypass tightened user account change validation

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

Issue #2227227 by mpdonadio, amateescu, yched, larowlan, swentel, tstoeckler, fago: FieldTypePluginManager cannot instantiate FieldType plugins, good thing TypedDataManager can instantiate just about anything

Issue #2426509 by yched, fago: ContentEntityBase::__set() messes with values that happen to be TypedData

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

Issue #2359509 by Berdir: Incorrect type safe check in Entity::onUpdateBundleEntity() results too many cache clears

Issue #2340667 by YesCT, Pedro Lozano, alexpott, martin107: Protect Drupal\Core\Language\Language::id, and use getId().

Issue #2002138 by yched, Jose Reyero, xjm, andypost, fago, msonnabaum, Berdir, dixon_: Use adapters for supporting typed data.

Issue #2188675 by Gábor Hojtsy, marthinal, fran seva, robertdbailey, Jalandhar, vijaycs85, dlu, kfritsche, YesCT, pfrenssen: Fixed Translate local task always visible, leads to WSOD.

Issue #1966436 by naveenvalecha, cesarmiquel, Berdir, mr.york, jlbellido, segi, vasi1186, Leksat, Gábor Hojtsy, Schnitzel, grisendo, Aron Novak, likin, penyaskito, vijaycs85, kfritsche, fago: Fixed Default *content* entity languages are not set for entities created with the API.

Issue #1976158 by Berdir | msonnabaum: Rename entity storage/list/form/render "controllers" to handlers.

Issue #2283977 by alexpott, Gábor Hojtsy, effulgentsia, fago: Create a new ConfigEntity type for storing bundle-specific customizations of base fields.

Issue #2154435 by andypost, Berdir, mparker17: Rename EntityAccessController to EntityAccessControlHandler.

Issue #597236 by Berdir, catch, msonnabaum, Xano, Wim Leers, jhedstrom, amateescu, corvus_ch, swentel, moshe weitzman, Gábor Hojtsy, riccardoR, killes@www.drop.org, et al: Add entity caching to core.

Issue #2246665 by jaredsmith, martin107, YesCT, filijonka, tstoeckler: Typehint with Drupal\Core\Language\LanguageInterface instead Drupal\Core\Language\Language.

Issue #2241655 by tim.plunkett: EntityStorageInterface::create() should always create a "new" entity.