Issue #3442713 by smustgrave, catch, Binoli Lalani, longwave: Remove deprecated code from the entity system

Issue #3113971 by Spokje, mondrake, acbramley, phenaproxima, andypost, murilohp, mpdonadio, ravi.shankar, pavnish, pifagor, vladbo, JeroenT, voleger, Taran2L: Replace REQUEST_TIME in services

Issue #3351060 by Spokje: Fix PHPStan L1 errors "You should use assertNull() instead of assertSame(null, $actual)."

Issue #2926958 by Spokje, andypost, Ratan Priya, MeenakshiG, ravi.shankar, Berdir, alexpott, plach, xjm, longwave: Remove revision-related methods from EntityStorageInterface

Issue #2616814 by dpi, Xano, geek-merlin, Hardik_Patel_12, jofitz, alexpott, Fabianx, catch, joachim, andypost, dawehner, daffie, cweagans, neclimdul: Delegate all hook invocations to ModuleHandler

Issue #3207567 by Spokje, quietone, guilhermevp, yogeshmpawar, daffie, alexpott: Fix Drupal.Commenting.FunctionComment.MissingParamComment

Issue #3107732 by mondrake, longwave, swatichouhan012, salah1, xjm, catch, alexpott, Berdir: Between April 13 and April 17, 2020: Add return typehints to setUp/tearDown methods in concrete test classes

Issue #3086850 by MasterBranch, ravi.shankar, joachim, hchonov, kiwimind, mglaman, jhedstrom: "Cannot load a NULL ID" assertion in EntityStorageBase should say the entity type

Issue #3073318 by Spokje, Mile23, mondrake: Remove usages of \PHPUnit_Framework_MockObject_MockObject

Issue #3059090 by clepson, mondrake, alexpott: Deprecate \Drupal\Tests\PhpunitCompatibilityTrait::setExpectedException()

Issue #3035980 by jhedstrom: Provide a better error when a NULL is passed to EntityStorageBase::load()

Issue #2949021 by tim.plunkett, Wim Leers: Deprecate schema fallback in ConfigEntityType::getPropertiesToExport

Issue #1596472 by catch, amateescu, claudiu.cristea, Berdir, Mile23, Sam152, pounard, fago, alexpott, fubhy, hchonov: Replace hard coded static cache of entities with cache backends

Issue #2782833 by Mile23, martin107, larowlan, effulgentsia: Remove usages of deprecated EntityManager from Entity class

Issue #2901739 by andriyun, Jo Fitzgerald, mfernea, xjm: Fix 'Squiz.Arrays.ArrayDeclaration' coding standard

Issue #2822837 by vaplas, martin107, chiranjeeb2410, klausi, dawehner: Replace @expectedException @expectedExceptionMessage with $this->setExpectedException

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Revert "Issue #2664322 by dawehner, benjifisher, almaudoh: key_value table is only used by a core service but it depends on system install"

This reverts commit 5571193f.

Issue #2664322 by dawehner, benjifisher, almaudoh: key_value table is only used by a core service but it depends on system install

Issue #2787577 by alexpott, dawehner: When tests use multiple namespaces they should do so in a coding standards compliant way

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2524082 by pfrenssen, Gábor Hojtsy, Wim Leers, Berdir, Fabianx, dawehner, catch: Config overrides should provide cacheability metadata

Issue #2432791 by alexpott, vijaycs85, tim.plunkett, joshtaylor, Fabianx, Berdir, yched, bojanz: Skip Config::save schema validation of config data for trusted data.

Issue #2204697 by alexpott, tstoeckler, mauzeh, Berdir: Move getConfigPrefix() to ConfigEntityTypeInterface

Issue #2447139 by Gábor Hojtsy: Config entities should be created in the negotiated language unless otherwise specified

Issue #2416409 by alexpott, bojanz: Delete dependent config entities that don't implement onDependencyRemoval() when a config entity is deleted

Issue #2392319 by alexpott, effulgentsia: Config objects (but not config entities) should by default be immutable

Issue #2040135 by Wim Leers, Berdir: Caches dependent on simple config are only invalidated on form submissions

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 #2328919 by Mile23, YesCT, tim.plunkett: Remove () from a bunch of @covers definitions in PHPUnit

Issue #2296115 by jhodgdon, hussainweb: Fixed Several entity loadRevision() methods do not obey the interface contract.

Issue #2304987 by Berdir, Wim Leers: Fixed Don't invalidate cache tags of referenced entities, use entity list cache tags correctly, add test coverage for entity list cache tags.

Issue #2340123 by Wim Leers: Setting cache tags can be tricky: use strings instead of nested arrays to improve DX.