diff --git a/core/includes/update.inc b/core/includes/update.inc
index a5feb50..2848abe 100644
--- a/core/includes/update.inc
+++ b/core/includes/update.inc
@@ -1597,3 +1597,92 @@ function update_add_cache_columns($table) {
     ));
   }
 }
+
+/**
+ * Create block config entity from properties passed in by module.
+ *
+ * @param $block_name
+ *   The full name of the block including block prefix (block.block).
+ * @param $module
+ *   Block module name.
+ * @param $delta
+ *   Block delta.
+ * @param $properties
+ *   A key-value array of block entity properties.
+ * @return Drupal\Core\Config\Config
+ *   A configuration object.
+ */
+function update_block_to_config($block_name, $module, $delta, $properties) {
+  $config = config($block_name);
+  $node_types = _update_7000_node_get_types();
+
+  // Set default properties.
+  $defaults = array(
+    'id' => '',
+    'uuid' => '',
+    'region' => '',
+    'weight' => 0,
+    'status' => 0,
+    'visibility' => array(
+      'path' => array(
+        'visibility' => 0,
+        'pages' => '',
+      ),
+      'role' => array(
+        'roles' => array(),
+      ),
+      'node_type' => array(
+        'types' => ($node_types) ? array_reverse(array_keys($node_types)) : array(),
+      ),
+      'visibility__active_tab' => 'edit-visibility-path',
+    ),
+    'plugin' => '',
+    'settings' => array(
+      'label' => '',
+      'label_display' => 'visible',
+      'module' => '',
+      'cache' => -1,
+    ),
+  );
+
+  $properties += $defaults;
+
+  // Get visible node types.
+  $types = db_select('block_node_type')
+    ->fields('block_node_type')
+    ->condition('module', $module)
+    ->condition('delta', $delta)
+    ->execute()
+    ->fetchAllKeyed(0, 0);
+
+  if (!empty($types)) {
+    foreach ($types as $type_name) {
+      $properties['visibility']['node_type']['types'][$type_name] = $type_name;
+    }
+  }
+
+  // Get visible roles.
+  $roles = db_select('block_role')
+    ->fields('block_role')
+    ->condition('module', $module)
+    ->condition('delta', $delta)
+    ->execute()
+    ->fetchAllKeyed(0, 0);
+
+  if (!empty($roles)) {
+    foreach ($roles as $rid) {
+      $properties['visibility']['roles']['role'][] = $rid;
+    }
+  }
+
+  // Config entity is new, need id.
+  if ($config->isNew()) {
+    $uuid = new UUID();
+    $properties['uuid'] = $uuid->generate();
+  }
+
+  // Set entity properties.
+  $config->setData($properties);
+
+  return $config->save();
+}
diff --git a/core/modules/book/book.install b/core/modules/book/book.install
index 7d70a02..7121a96 100644
--- a/core/modules/book/book.install
+++ b/core/modules/book/book.install
@@ -109,3 +109,35 @@ function book_update_8000() {
   }
 
 }
+
+/**
+ * Migrate book navigation block to config including book navigation
+ * configuration.
+ */
+function book_update_8001() {
+  $results = db_select('block')->condition('module', 'book')->fields('block')->execute()->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.' . $block->delta;
+    $properties = array(
+      'id' => $block->theme . '.' . $block->delta,
+      'plugin' => 'block_' . $block->delta,
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+        'block_mode' => config('book.settings')->get('block.navigation.mode', 'all pages'),
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'book', $block->delta, $properties);
+  }
+}
diff --git a/core/modules/comment/comment.install b/core/modules/comment/comment.install
index b022efb..5270384 100644
--- a/core/modules/comment/comment.install
+++ b/core/modules/comment/comment.install
@@ -394,6 +394,47 @@ function comment_update_8004() {
 }
 
 /**
+ * Migrate comment block to config.
+ */
+function comment_update_8005() {
+  // Did comment_block_count get updated?
+  update_variables_to_config('comment.settings', array(
+    'comment_block_count' => 'block.recent_comments.limit',
+  ));
+
+  $results = db_select('block')
+    ->condition('module', 'comment')
+    ->condition('delta', 'recent')
+    ->fields('block')
+    ->execute()
+    ->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.recent_comments';
+    $properties = array(
+      'id' => $block->theme . '.recent_comments',
+      'plugin' => 'recent_comments',
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+        'block_count' => config('comment.settings')->get('block.recent_comments.limit', 10),
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'comment', $block->delta, $properties);
+  }
+}
+
+/**
  * @} End of "addtogroup updates-7.x-to-8.x".
  * The next series of updates should start at 9000.
  */
diff --git a/core/modules/comment/config/comment.settings.yml b/core/modules/comment/config/comment.settings.yml
new file mode 100644
index 0000000..039f966
--- /dev/null
+++ b/core/modules/comment/config/comment.settings.yml
@@ -0,0 +1,3 @@
+block:
+  recent:
+    limit: '10'
diff --git a/core/modules/forum/forum.install b/core/modules/forum/forum.install
index a6641a2..2f870ce 100644
--- a/core/modules/forum/forum.install
+++ b/core/modules/forum/forum.install
@@ -273,3 +273,43 @@ function forum_update_8000() {
     'forum_block_num_new' => 'block.new.limit',
   ));
 }
+
+/**
+ * Migrate forum new and active blocks to configuration.
+ */
+function forum_update_8001() {
+  // Block name map from Drupal 7 delta to Drupal 8.
+  $map = array(
+    'new' => 'new_forum_topics',
+    'active' => 'active_forum_topics',
+  );
+
+  $results = db_select('block')->condition('module', 'forum')->fields('block')->execute()->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.' . $map[$block->delta];
+    $properties = array(
+      'id' => $block->theme . '.' . $block->delta,
+      'plugin' => 'forum_' . $block->delta . '_block',
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+        'properties' => array(
+          'administrative' => TRUE,
+        ),
+        'block_count' => config('book.settings')->get('block.' . $block->delta . '.limit', 5),
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'forum', $block->delta, $properties);
+  }
+}
diff --git a/core/modules/menu/menu.install b/core/modules/menu/menu.install
index a76207b..cf18bb9 100644
--- a/core/modules/menu/menu.install
+++ b/core/modules/menu/menu.install
@@ -15,6 +15,15 @@ function menu_uninstall() {
 }
 
 /**
+ * Implements hook_update_dependencies().
+ */
+function menu_update_dependencies() {
+  $dependencies['menu'][8005] = array(
+    'block' => 8004,
+  );
+}
+
+/**
  * Moves menu settings from variables to config.
  *
  * @ingroup config_upgrade
@@ -89,3 +98,34 @@ function menu_update_8004() {
     update_config_manifest_add('menu.menu', array($menu->menu_name));
   }
 }
+
+/**
+ * Migrate menu blocks into configuration.
+ *
+ * @ingroup config_upgrade
+ */
+function menu_update_8005() {
+  $results = db_select('block')->condition('module', 'menu')->fields('block')->execute()->fetchAll();
+
+  foreach ($results as $block) {
+    $block_name = 'block.block.' . $block->theme . '.' . $block->delta;
+    $properties = array(
+      'id' => $block->theme . '.' . $block->delta,
+      'plugin' => 'menu_menu_block:' . $block->delta,
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'menu', $block->delta, $properties);
+  }
+}
diff --git a/core/modules/node/config/node.settings.yml b/core/modules/node/config/node.settings.yml
index 9562864..b4b03af 100644
--- a/core/modules/node/config/node.settings.yml
+++ b/core/modules/node/config/node.settings.yml
@@ -1 +1,4 @@
 items_per_page: '10'
+block:
+  recent_content:
+    limit: '10'
diff --git a/core/modules/node/node.install b/core/modules/node/node.install
index 67cd0c3..0ec4511 100644
--- a/core/modules/node/node.install
+++ b/core/modules/node/node.install
@@ -668,12 +668,15 @@ function node_update_8008() {
 }
 
 /**
- * Coverts default_nodes_main variable to config.
+ * Converts default_nodes_main and node_recent_block_count variables to config.
  *
  * @ingroup config_upgrade
  */
 function node_update_8009() {
-  update_variables_to_config('node.settings', array('default_nodes_main' => 'items_per_page'));
+  update_variables_to_config('node.settings', array(
+    'default_nodes_main' => 'items_per_page',
+    'node_recent_block_count' => 'block.recent_content.limit',
+  ));
 }
 
 /**
@@ -754,6 +757,53 @@ function node_update_8015() {
 }
 
 /**
+ * Migrate recent content and syndicate blocks to config.
+ */
+function node_update_8016() {
+  // Block name and id mapping.
+  $map = array(
+    'recent' => 'recent_content',
+    'syndicate' => 'syndicate',
+  );
+
+  $results = db_select('block')
+    ->condition('module', 'node')
+    ->condition('delta', array('recent', 'syndicate'), 'IN')
+    ->fields('block')
+    ->execute()
+    ->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.' . $map[$block->delta];
+    $properties = array(
+      'id' => $block->theme . '.' . $map[$block->delta],
+      'plugin' => 'node_' . $block->delta . '_block',
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+        'module' => 'node',
+      ),
+    );
+
+    if ($block->delta == 'recent') {
+      $properties['block_count'] = config('node.settings')->get('block.recent_content.limit', 10);
+    }
+
+    $ret = update_block_to_config($block_name, 'node', $block->delta, $properties);
+  }
+}
+
+/**
  * @} End of "addtogroup updates-7.x-to-8.x"
  * The next series of updates should start at 9000.
  */
diff --git a/core/modules/search/search.install b/core/modules/search/search.install
index 40a569c..8fcbe54 100644
--- a/core/modules/search/search.install
+++ b/core/modules/search/search.install
@@ -214,3 +214,39 @@ function search_update_8001() {
   ));
   db_add_primary_key('search_index', array('word', 'sid', 'langcode', 'type'));
 }
+
+/**
+ * Migrate search block to config.
+ */
+function search_update_8002() {
+  $results = db_select('block')
+    ->condition('module', 'search')
+    ->condition('delta', 'form')
+    ->fields('block')
+    ->execute()
+    ->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.search_form';
+    $properties = array(
+      'id' => $block->theme . '.search_form',
+      'plugin' => 'search_form_block',
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+        'module' => 'search',
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'search', $block->delta, $properties);
+  }
+}
diff --git a/core/modules/shortcut/shortcut.install b/core/modules/shortcut/shortcut.install
index 4a84150..7547ef7 100644
--- a/core/modules/shortcut/shortcut.install
+++ b/core/modules/shortcut/shortcut.install
@@ -102,6 +102,41 @@ function shortcut_update_8001() {
 }
 
 /**
+ * Migrate shortcuts block to config.
+ */
+function shortcut_update_8002() {
+  $results = db_select('block')
+    ->condition('module', 'shortcut')
+    ->condition('delta', 'shortcuts')
+    ->fields('block')
+    ->execute()
+    ->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.shortcuts';
+    $properties = array(
+      'id' => $block->theme . '.shortcuts',
+      'plugin' => 'shortcuts',
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'shortcut', $block->delta, $properties);
+  }
+}
+
+/**
  * @} End of "addtogroup updates-7.x-to-8.x".
  * The next series of updates should start at 9000.
  */
diff --git a/core/modules/system/lib/Drupal/system/Tests/Upgrade/BlockUpgradePathTest.php b/core/modules/system/lib/Drupal/system/Tests/Upgrade/BlockUpgradePathTest.php
index 45f2efb..d680d94 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Upgrade/BlockUpgradePathTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Upgrade/BlockUpgradePathTest.php
@@ -30,6 +30,23 @@ public function setUp() {
   }
 
   /**
+   * Tests block save after successful upgrade.
+   */
+  public function testBlockUpgradeSave() {
+    $this->assertTrue($this->performUpgrade(), 'The upgrade was completed successfully.');
+
+    // Change the title of an upgraded block.
+    $edit = array(
+      'settings[label]' => $this->randomName(50),
+    );
+    $this->drupalPost('admin/structure/block/manage/bartik.login/configure', $edit, t('Save block'));
+
+    $this->drupalLogout();
+    $this->drupalGet('');
+    $this->assertText($edit['settings[label]'], 'Bartik user login block title successfully changed.');
+  }
+
+  /**
    * Tests block title length after successful upgrade.
    */
   public function testBlockUpgradeTitleLength() {
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index 3824136..dda39d8 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -2194,6 +2194,68 @@ function system_update_8056() {
 }
 
 /**
+ * Migrate system blocks to config.
+ */
+function system_update_8057() {
+  $results = db_select('block')->condition('module', 'system')->fields('block')->execute()->fetchAll();
+
+  // There are a variety of block names and plugins that are not consistent.
+  $plugin_map = array(
+    'main' => array(
+      'plugin' => 'system_main_block',
+      'name' => 'content',
+    ),
+    'help' => array(
+      'plugin' => 'system_help_block',
+      'name' => 'help',
+    ),
+    'powered-by' => array(
+      'plugin' => 'system_powered_by_block',
+      'name' => 'powered',
+    ),
+    'menu-tools' => array(
+      'plugin' => 'system_menu_block:menu-tools',
+      'name' => 'tools',
+    ),
+    'menu-admin' => array(
+      'plugin' => 'system_menu_block:menu-admin',
+      'name' => 'administration',
+    ),
+    'menu-account' => array(
+      'plugin' => 'system_menu_block:menu-account',
+      'name' => 'user_account_menu',
+    ),
+    'menu-main' => array(
+      'plugin' => 'system_menu_block:menu-main',
+      'name' => 'main_navigation',
+    ),
+  );
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.' . $plugin_map[$block->delta]['name'];
+    $properties = array(
+      'id' => $block->theme . '.' . $plugin_map[$block->delta]['name'],
+      'plugin' => $plugin_map[$block->delta]['plugin'],
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'system', $block->delta, $properties);
+  }
+}
+
+/**
  * @} End of "defgroup updates-7.x-to-8.x".
  * The next series of updates should start at 9000.
  */
diff --git a/core/modules/user/user.install b/core/modules/user/user.install
index 9819cde..8adbaff 100644
--- a/core/modules/user/user.install
+++ b/core/modules/user/user.install
@@ -1058,5 +1058,35 @@ function user_update_8017() {
 }
 
 /**
+ * Migrate user blocks into configuration.
+ */
+function user_update_8018() {
+  $results = db_select('block')->condition('module', 'user')->fields('block')->execute()->fetchAll();
+
+  foreach ($results as $block) {
+    // Assemble properties to pass into block config update function.
+    $block_name = 'block.block.' . $block->theme . '.' . $block->delta;
+    $properties = array(
+      'id' => $block->theme . '.' . $block->delta,
+      'plugin' => 'user_' . $block->delta . '_block',
+      'weight' => $block->weight,
+      'status' => $block->status,
+      'region' => $block->region,
+      'visibility' => array(
+        'path' => array(
+          'visibility' => $block->visibility,
+          'pages' => $block->pages,
+        ),
+      ),
+      'settings' => array(
+        'cache' => $block->cache,
+        'label' => $block->title,
+      ),
+    );
+    $ret = update_block_to_config($block_name, 'user', $block->delta, $properties);
+  }
+}
+
+/**
  * @} End of "addtogroup updates-7.x-to-8.x".
  */