diff --git a/core/lib/Drupal/Core/Entity/ContentEntityBase.php b/core/lib/Drupal/Core/Entity/ContentEntityBase.php
index 9e83814..eb09717 100644
--- a/core/lib/Drupal/Core/Entity/ContentEntityBase.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityBase.php
@@ -1171,6 +1171,12 @@ public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
       }
     }
 
+    // Add the base fields provided by the revisionable log entity trait.
+    $traits_used = class_uses(get_called_class());
+    if ($traits_used && isset($traits_used['Drupal\Core\Entity\RevisionLogEntityTrait'])) {
+      $fields += static::revisionLogBaseFieldDefinitions($entity_type);
+    }
+
     return $fields;
   }
 
diff --git a/core/lib/Drupal/Core/Entity/RevisionLogEntityTrait.php b/core/lib/Drupal/Core/Entity/RevisionLogEntityTrait.php
new file mode 100644
index 0000000..20fef59
--- /dev/null
+++ b/core/lib/Drupal/Core/Entity/RevisionLogEntityTrait.php
@@ -0,0 +1,111 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Entity\RevisionLogEntityTrait.
+ */
+
+namespace Drupal\Core\Entity;
+
+use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\user\UserInterface;
+
+/**
+ * Provides a trait for accessing revision logging and ownership information.
+ *
+ * @ingroup entity_api
+ */
+trait RevisionLogEntityTrait {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function revisionLogBaseFieldDefinitions(EntityTypeInterface $entity_type) {
+    $fields['revision_created'] = BaseFieldDefinition::create('created')
+      ->setLabel(t('Revision create time'))
+      ->setDescription(t('The time that the current revision was created.'))
+      ->setRevisionable(TRUE);
+
+    $fields['revision_user'] = BaseFieldDefinition::create('entity_reference')
+      ->setLabel(t('Revision user'))
+      ->setDescription(t('The user ID of the author of the current revision.'))
+      ->setSetting('target_type', 'user')
+      ->setRevisionable(TRUE);
+
+    $fields['revision_log_message'] = BaseFieldDefinition::create('string_long')
+      ->setLabel(t('Revision log message'))
+      ->setDescription(t('Briefly describe the changes you have made.'))
+      ->setRevisionable(TRUE)
+      ->setDefaultValue('')
+      ->setDisplayOptions('form', [
+        'type' => 'string_textarea',
+        'weight' => 25,
+        'settings' => [
+          'rows' => 4,
+        ],
+      ]);
+
+    return $fields;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRevisionCreationTime() {
+    return $this->revision_created->value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setRevisionCreationTime($timestamp) {
+    $this->revision_created->value = $timestamp;
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRevisionUser() {
+    return $this->revision_user->entity;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setRevisionUser(UserInterface $account) {
+    $this->revision_user->entity = $account;
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRevisionUserId() {
+    return $this->revision_user->target_id;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setRevisionUserId($user_id) {
+    $this->revision_user->target_id = $user_id;
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getRevisionLogMessage() {
+    return $this->revision_log_message->value;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setRevisionLogMessage($revision_log_message) {
+    $this->revision_log_message->value = $revision_log_message;
+    return $this;
+  }
+
+}
diff --git a/core/lib/Drupal/Core/Entity/RevisionLogInterface.php b/core/lib/Drupal/Core/Entity/RevisionLogInterface.php
new file mode 100644
index 0000000..42a86c7
--- /dev/null
+++ b/core/lib/Drupal/Core/Entity/RevisionLogInterface.php
@@ -0,0 +1,92 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Entity\RevisionLogInterface.
+ */
+
+namespace Drupal\Core\Entity;
+
+use Drupal\user\UserInterface;
+
+/**
+ * Defines methods for an entity that supports revision logging and ownership.
+ */
+interface RevisionLogInterface extends RevisionableInterface {
+
+  /**
+   * Gets the entity revision creation timestamp.
+   *
+   * @return int|NULL
+   *   The UNIX timestamp of when this revision was created. Return NULL if the
+   *   entity type does not support revision create time.
+   */
+  public function getRevisionCreationTime();
+
+  /**
+   * Sets the entity revision creation timestamp.
+   *
+   * @param int $timestamp
+   *   The UNIX timestamp of when this revision was created.
+   *
+   * @return $this
+   */
+  public function setRevisionCreationTime($timestamp);
+
+  /**
+   * Gets the entity revision author.
+   *
+   * @return \Drupal\user\UserInterface|NULL
+   *   The user entity for the revision author. Return NULL if the entity type
+   *   doesn't support revision authors.
+   */
+  public function getRevisionUser();
+
+  /**
+   * Sets the entity revision author.
+   *
+   * @param \Drupal\user\UserInterface $account
+   *   The user account of the revision author.
+   *
+   * @return $this
+   */
+  public function setRevisionUser(UserInterface $account);
+
+  /**
+   * Gets the entity revision author ID.
+   *
+   * @return int
+   *   The user ID.
+   */
+  public function getRevisionUserId();
+
+  /**
+   * Sets the entity revision author by ID.
+   *
+   * @param int $user_id
+   *   The user ID of the revision author.
+   *
+   * @return $this
+   */
+  public function setRevisionUserId($user_id);
+
+  /**
+   * Returns the entity revision log message.
+   *
+   * @return string|NULL
+   *   The revision log message. Return NULL if the entity type doesn't support
+   *   revision logs.
+   */
+  public function getRevisionLogMessage();
+
+  /**
+   * Sets the entity revision log message.
+   *
+   * @param string $revision_log_message
+   *   The revision log message.
+   *
+   * @return $this
+   */
+  public function setRevisionLogMessage($revision_log_message);
+
+}
diff --git a/core/lib/Drupal/Core/Entity/RevisionableContentEntityBase.php b/core/lib/Drupal/Core/Entity/RevisionableContentEntityBase.php
new file mode 100644
index 0000000..d1d7483
--- /dev/null
+++ b/core/lib/Drupal/Core/Entity/RevisionableContentEntityBase.php
@@ -0,0 +1,23 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Entity\RevisionableContentEntityBase.
+ */
+
+namespace Drupal\Core\Entity;
+
+/**
+ * Provides a content entity with extended support for revisions.
+ *
+ * In addition to the parent entity class, base fields and methods for
+ * accessing the revision log message, revision owner and the revision creation
+ * time are provided.
+ *
+ * @ingroup entity_api
+ */
+abstract class RevisionableContentEntityBase extends ContentEntityBase implements RevisionLogInterface {
+
+  use RevisionLogEntityTrait;
+
+}
diff --git a/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestWithRevisionLog.php b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestWithRevisionLog.php
new file mode 100644
index 0000000..2216f1f
--- /dev/null
+++ b/core/modules/system/tests/modules/entity_test/src/Entity/EntityTestWithRevisionLog.php
@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\entity_test\Entity\EntityTestWithRevisionLog.
+ */
+
+namespace Drupal\entity_test\Entity;
+
+use Drupal\Core\Entity\RevisionableContentEntityBase;
+
+/**
+ * Defines the test entity class.
+ *
+ * @ContentEntityType(
+ *   id = "entity_test_revlog",
+ *   label = @Translation("Test entity - revisions log"),
+ *   handlers = {
+ *     "access" = "Drupal\entity_test\EntityTestAccessControlHandler",
+ *     "view_builder" = "Drupal\entity_test\EntityTestViewBuilder",
+ *     "form" = {
+ *       "default" = "Drupal\entity_test\EntityTestForm",
+ *       "delete" = "Drupal\entity_test\EntityTestDeleteForm"
+ *     },
+ *     "view_builder" = "Drupal\entity_test\EntityTestViewBuilder",
+ *     "translation" = "Drupal\content_translation\ContentTranslationHandler",
+ *     "views_data" = "Drupal\views\EntityViewsData",
+ *     "route_provider" = {
+ *       "html" = "Drupal\Core\Entity\Routing\DefaultHtmlRouteProvider",
+ *     },
+ *   },
+ *   base_table = "entity_test_revlog",
+ *   revision_table = "entity_test_revlog_revision",
+ *   admin_permission = "administer entity_test content",
+ *   entity_keys = {
+ *     "id" = "id",
+ *     "uuid" = "uuid",
+ *     "revision" = "revision_id",
+ *     "bundle" = "type",
+ *     "label" = "name",
+ *     "langcode" = "langcode",
+ *   },
+ *   links = {
+ *     "canonical" = "/entity_test_revlog/manage/{entity_test_revlog}",
+ *     "delete-form" = "/entity_test/delete/entity_test_revlog/{entity_test_revlog}",
+ *     "edit-form" = "/entity_test_revlog/manage/{entity_test_revlog}/edit",
+ *     "revision" = "/entity_test_revlog/{entity_test_revlog}/revision/{entity_test_revlog_revision}/view",
+ *   }
+ * )
+ */
+class EntityTestWithRevisionLog extends RevisionableContentEntityBase {
+
+}
diff --git a/core/tests/Drupal/KernelTests/Core/Entity/RevisionableContentEntityBaseTest.php b/core/tests/Drupal/KernelTests/Core/Entity/RevisionableContentEntityBaseTest.php
new file mode 100644
index 0000000..c8f0ce5
--- /dev/null
+++ b/core/tests/Drupal/KernelTests/Core/Entity/RevisionableContentEntityBaseTest.php
@@ -0,0 +1,61 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\KernelTests\Core\Entity\RevisionableContentEntityBaseTest.
+ */
+
+namespace Drupal\KernelTests\Core\Entity;
+
+use Drupal\entity_test\Entity\EntityTestWithRevisionLog;
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\user\Entity\User;
+
+/**
+ * @coversDefaultClass \Drupal\Core\Entity\RevisionableContentEntityBase
+ * @group Entity
+ */
+class RevisionableContentEntityBaseTest extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['entity_test', 'system', 'user'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installEntitySchema('entity_test_revlog');
+    $this->installEntitySchema('user');
+    $this->installSchema('system', 'sequences');
+  }
+
+  public function testRevisionableContentEntity() {
+    $user = User::create(['name' => 'test name']);
+    $user->save();
+    /** @var \Drupal\entity_test\Entity\EntityTestWithRevisionLog $entity */
+    $entity = EntityTestWithRevisionLog::create([
+      'type' => 'entity_test_revlog',
+    ]);
+    $entity->save();
+
+    $entity->setNewRevision(TRUE);
+    $random_timestamp = rand(1e8, 2e8);
+    $entity->setRevisionCreationTime($random_timestamp);
+    $entity->setRevisionUserId($user->id());
+    $entity->setRevisionLogMessage('This is my log message');
+    $entity->save();
+
+    $revision_id = $entity->getRevisionId();
+
+    $entity = \Drupal::entityTypeManager()->getStorage('entity_test_revlog')->loadRevision($revision_id);
+    $this->assertEquals($random_timestamp, $entity->getRevisionCreationTime());
+    $this->assertEquals($user->id(), $entity->getRevisionUserId());
+    $this->assertEquals($user->id(), $entity->getRevisionUser()->id());
+    $this->assertEquals('This is my log message', $entity->getRevisionLogMessage());
+  }
+
+}