Issue #2079011 by Berdir, alexpott: Move field.module constants related to storage to EntityStorageControllerInterface.

Issue #1497374 by yched, chx, amateescu, plach, Damien Tournoud, fago, swentel: Switch from Field-based storage to Entity-based storage.

Issue #2062191 by duozersk: Remove Unused local variables from EntityNG, DatabaseStorageControllerNG, and DatabaseStorageController.

Issue #1969728 by yched, effulgentsia, swentel, fago, plach: Implement Field API 'field types' as TypedData Plugins.

Issue #1893772 by chx, fubhy, slashrsm: Move entity-type specific storage logic into entity classes.

Issue #1818570 by Berdir, effulgentsia, das-peter, andypost: Convert users to the new Entity Field API.

Issue #1634442 by chia, Berdir, amateescu, fago: Fixed DatabaseStorageController can't catch exceptions.

Issue #1498674 by plach, das-peter, Schnitzel, dawehner, YesCT, attiks, Berdir, Gábor Hojtsy, Soul88, Carsten Müller: Refactor node properties to multilingual.

Issue #1909418 by tim.plunkett, damiankloip, larowlan, dawehner, kim.pepper: Allow Entity Controllers to have their dependencies injected.

Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1975486 by Berdir: Add a persistent cache in DatabaseStorageController::getFieldDefinitions().

Issue #1919016 by dawehner, Berdir: Remove term_access() tag in TermStorageController::buildQuery().

Issue #1845546 by fago, EclipseGc, attiks, effulgentsia: Implement validation for the TypedData API.

Issue #1877632 by fago, jhodgdon: Improve comments and clean-up code for EntityNG and the TypedData API.

Issue #1253820 by yched, zserno, tim.plunkett, xjm, effulgentsia, plach: Fixed It's impossible to submit no value for a field that has a default value.

Issue #1885542 by larowlan, tim.plunkett: Fixed DatabaseControllerNG does not rollback failed ::save() operations.

Issue #1356170 by ohnobinki, tim.plunkett: Remove all uses of array_merge_recursive(), or document why they are being used instead of NestedArray::mergeDeep().

Issue #1874300 by Berdir, swentel: Remove $entity_type argument from field.module functions that receive a single $entity.

Issue #1869250 by fago, Berdir, das-peter, YesCT, mradcliffe, fubhy: Various EntityNG and TypedData API improvements.

Issue #1825044 by sun: turn contact form submissions into full-blown Contact Message entities, without storage.

Issue #1831444 by das-peter, Berdir, andypost: Added EntityNG: Support for revisions for entity save and delete operations.

Issue #1822150 by sun: Fixed EntityStorageControllerInterface::delete() should accept an array of entities, not IDs.

Issue #1763974 by tim.plunkett, EclipseGC, berdir, xjm, neclimdul, FabianX: Convert entity type info into plugins.

Issue #1723892 by Berdir, Pancho, das-peter, fago: Support for revisions for entity save and delete operations.

Issue #1696640 by fago, effulgentsia, tim.plunkett, dixon_, plach: Add a uniform Entity Property API.