Issue #1981306 by aspilicious, andypost, pcambra, swentel, amateescu: Drop procedural usage of fields in [a-e] modules.

Issue #1950632 by effulgentsia, Wim Leers, amateescu, yched: Create a FieldDefinitionInterface, decoupled from  and  config entities, and use it for formatters and widgets.

Issue #1952652 by andypost: [Follow up] Instance components are not removed from entity display when the field/instance is deleted.

Issue #1952652 by swentel: Instance components are not removed from entity display when the field/instance is deleted.

Issue #1391694 by tim.plunkett, aspilicious, fago, pounard, plach, Crell, msonnabaum, tstoeckler: Use type-hinting for entity-parameters.

Issue #1807042 by tim.plunkett, effulgentsia: Rename entity storage/list/form/render controllers to handlers, part 1: organize existing annotation keys.

Issue #1950326 by swentel: Fixed Entity displays are not renamed/deleted when a bundle is renamed/deleted.

Issue #1849752 by effulgentsia, Berdir, jibran, neclimdul: Abstract non-Drupal-specific parts of AnnotatedClassDiscovery into a Drupal\Component base class.

Issue #1891516 by sun, Berdir, chx: Remove $install parameter from DrupalUnitTestBase::enableModules(), encourage to create individual schema tables only.

Issue #1331486 by katbailey, chx, sun, beejeebus, amateescu: Move module_invoke_*() and friends to an Extensions class.

Revert "Issue #1331486 by katbailey, chx, sun, beejeebus, amateescu: Move module_invoke_*() and friends to an Extensions class. Broke core tests after commit."

This reverts commit c80c3e18.

Issue #1331486 by katbailey, chx, sun, beejeebus, amateescu: Move module_invoke_*() and friends to an Extensions class.

Issue #1852966 by yched, Stalski, zuuperman, swentel: Rework entity display settings around EntityDisplay config entity.

Revert "Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity."

This reverts commit 8ad67af2.

Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity.

Issue #218755 by jstoller, Gábor Hojtsy, stevector, mradcliffe, agentrickard, catch, Crell: Added Support revisions in different states.

Issue #1498874 by peximo, plach, Gábor Hojtsy, attiks: Provide language awareness to entity forms (introduce the form language concept).

Issue #1772102 by effulgentsia, fago: Remove StorageControllerInterface in favour of EntityStorageControllerInterface.

Issue #1772102 by fago: Remove StorageControllerInterface in favour of EntityStorageControllerInterface.

Issue #1761040 by sun, tim.plunkett, fago, effulgentsia: Rename Storable, Entity, and Configurable to Entity, ContentEntity, and ConfigEntity.

Issue #1468328 by Berdir: Move file entity info, managed file, and file usage functionality into File module.

Issue #1739994 by pp, das-peter, Gábor Hojtsy: Use the Language class universally instead of stdObj instances.

Issue #1668820 by sun, xjm, tim.plunkett, fgm: Concept, base class, and interface for configurable objects.

Issue #1154382 by Berdir, barraponto, acouch, swentel, LoMo, chx: Fixed View mode no longer can be changed.

Issue #1629924 by Berdir: Fixed Default return value from EntityInterface::label(), Entity::label(), entity_label() does not match.

Issue #1618172 by jcisio, corvus_ch, estebanvalerio.h, Berdir: Remove entity_uri() in favor of EntityInterface::uri().