Issue #2223423 by Xano, tim.plunkett: Stop extending \Drupal\Core\Entity\Entity in unit tests.
Issue #1503464 by plopesc, larowlan, joelpittet, svenaas: Automatically add theme hook suggestion for node view mode.
Issue #2228215 by znerol, Berdir: Remove module check in DrupalKernel.
Issue #2229167 by dawehner, marthinal, Bojhan: Broken/missing handler (Module: node)
Issue #2259823 by beejeebus, Wim Leers: Make cache->created be to the millisecond.
Issue #2190313 by pfrenssen, Berdir, amateescu, ianthomas_uk: Add $EntityType::load() and loadMultiple() to simplify loading entities.
Issue #2139583 by damiankloip, dawehner: Clarify error message when services.yml definitions are missing top-level keys.
Issue #2267753 by pwolanin, YesCT, Berdir: ContentEntityDatabaseStorage::mapToStorageRecord  hard-codes $entity->$name->value.
Issue #2218057 by jhodgdon, dawehner: Search Views integration - filter needs to join to node_field_data.langcode.
Issue #2207777 by Wim Leers, pjonckiere, Rajesh Ashok | alexpott: Can not configure editor whilst creating a new text format.
Issue #2259209 by roderik, larowlan: Fix CommentStatistics::read().
Revert "Issue #2267753 by pwolanin, YesCT, Berdir: ContentEntityDatabaseStorage::mapToStorageRecord  hard-codes $entity->$name->value."

This reverts commit c16fbc5593178333e019957984a0a9ba5843f23f.
Issue #2264179 by Gábor Hojtsy, vijaycs85, alexpott, benjy: Clarify use of property/undefined and add an ignore type in configuration schema.
Issue #1289536 by RobLoach, Crell, Pancho, pounard, socketwench, fgm, dawehner, scor, tim.plunkett, larowlan, ParisLiakos: Switch Watchdog to a PSR-3 logging framework.
Issue #2267753 by pwolanin, amateescu, YesCT, Berdir: ContentEntityDatabaseStorage::mapToStorageRecord  hard-codes ->->value.
Issue #2259823 by beejeebus, Wim Leers: Make cache->created be to the millisecond.
Issue #2267329 by tim.plunkett | joachim: Move EntityWithPluginBagInterface out of Drupal\Core\Config\Entity and make it useful for more than one bag.
Issue #2268801 by tim.plunkett: Update ConditionInterface to use recently added plugin interfaces.
Issue #2096899 by amateescu, msonnabaum | Berdir: Add ::create() to simplify creating new entities.
Issue #2039435 by Xano, Berdir | akshay.swnt22: Convert EntityManager to extend DefaultPluginManager.