diff --git a/wp-admin/edit-comments.php b/wp-admin/edit-comments.php
index f0ecec92e8..d1f62b49ba 100644
--- a/wp-admin/edit-comments.php
+++ b/wp-admin/edit-comments.php
@@ -82,6 +82,22 @@ if ( $doaction ) {
 		}
 	}
 
+	if ( ! in_array( $doaction, array( 'approve', 'unapprove', 'spam', 'unspam', 'trash', 'delete' ), true ) ) {
+		/**
+		 * Fires when a custom bulk action should be handled.
+		 *
+		 * The redirect link should be modified with success or failure feedback
+		 * from the action to be used to display feedback to the user.
+		 *
+		 * @since 4.7.0
+		 *
+		 * @param string $redirect_to The redirect URL.
+		 * @param string $doaction    The action being taken.
+		 * @param array  $comment_ids The comments to take the action on.
+		 */
+		$redirect_to = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $redirect_to, $doaction, $comment_ids );
+	}
+
 	wp_defer_comment_counting( false );
 
 	if ( $approved )
diff --git a/wp-admin/edit-tags.php b/wp-admin/edit-tags.php
index 37991e0d8f..76e7204bd9 100644
--- a/wp-admin/edit-tags.php
+++ b/wp-admin/edit-tags.php
@@ -195,6 +195,26 @@ case 'editedtag':
 	else
 		$location = add_query_arg( array( 'error' => true, 'message' => 5 ), $location );
 	break;
+default:
+	if ( ! $wp_list_table->current_action() || ! isset( $_REQUEST['delete_tags'] ) ) {
+		break;
+	}
+	check_admin_referer( 'bulk-tags' );
+	$tags = (array) $_REQUEST['delete_tags'];
+	/**
+	 * Fires when a custom bulk action should be handled.
+	 *
+	 * The sendback link should be modified with success or failure feedback
+	 * from the action to be used to display feedback to the user.
+	 *
+	 * @since 4.7.0
+	 *
+	 * @param string $location The redirect URL.
+	 * @param string $action   The action being taken.
+	 * @param array  $tags     The tag IDs to take the action on.
+	 */
+	$location = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $location, $wp_list_table->current_action(), $tags );
+	break;
 }
 
 if ( ! $location && ! empty( $_REQUEST['_wp_http_referer'] ) ) {
@@ -210,7 +230,7 @@ if ( $location ) {
 	 * Filters the taxonomy redirect destination URL.
 	 *
 	 * @since 4.6.0
-	 * 
+	 *
 	 * @param string $location The destination URL.
 	 * @param object $tax      The taxonomy object.
 	 */
diff --git a/wp-admin/edit.php b/wp-admin/edit.php
index 59cb4f1954..120140a144 100644
--- a/wp-admin/edit.php
+++ b/wp-admin/edit.php
@@ -162,6 +162,21 @@ if ( $doaction ) {
 				}
 			}
 			break;
+		default:
+			/**
+			 * Fires when a custom bulk action should be handled.
+			 *
+			 * The sendback link should be modified with success or failure feedback
+			 * from the action to be used to display feedback to the user.
+			 *
+			 * @since 4.7.0
+			 *
+			 * @param string $sendback The redirect URL.
+			 * @param string $doaction The action being taken.
+			 * @param array  $post_ids The post IDs to take the action on. 
+			 */
+			$sendback = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $sendback, $doaction, $post_ids );
+			break;
 	}
 
 	$sendback = remove_query_arg( array('action', 'action2', 'tags_input', 'post_author', 'comment_status', 'ping_status', '_status', 'post', 'bulk_edit', 'post_view'), $sendback );
diff --git a/wp-admin/includes/class-wp-list-table.php b/wp-admin/includes/class-wp-list-table.php
index 68053517db..0ef4de35aa 100644
--- a/wp-admin/includes/class-wp-list-table.php
+++ b/wp-admin/includes/class-wp-list-table.php
@@ -436,7 +436,7 @@ class WP_List_Table {
 	 */
 	protected function bulk_actions( $which = '' ) {
 		if ( is_null( $this->_actions ) ) {
-			$no_new_actions = $this->_actions = $this->get_bulk_actions();
+			$this->_actions = $this->get_bulk_actions();
 			/**
 			 * Filters the list table Bulk Actions drop-down.
 			 *
@@ -450,7 +450,6 @@ class WP_List_Table {
 			 * @param array $actions An array of the available bulk actions.
 			 */
 			$this->_actions = apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions );
-			$this->_actions = array_intersect_assoc( $this->_actions, $no_new_actions );
 			$two = '';
 		} else {
 			$two = '2';
diff --git a/wp-admin/link-manager.php b/wp-admin/link-manager.php
index 79abe65b77..3937fd7f3d 100644
--- a/wp-admin/link-manager.php
+++ b/wp-admin/link-manager.php
@@ -19,17 +19,34 @@ $doaction = $wp_list_table->current_action();
 if ( $doaction && isset( $_REQUEST['linkcheck'] ) ) {
 	check_admin_referer( 'bulk-bookmarks' );
 
+	$redirect_to = admin_url( 'link-manager.php' );
+	$bulklinks = (array) $_REQUEST['linkcheck'];
+
 	if ( 'delete' == $doaction ) {
-		$bulklinks = (array) $_REQUEST['linkcheck'];
 		foreach ( $bulklinks as $link_id ) {
 			$link_id = (int) $link_id;
 
 			wp_delete_link( $link_id );
 		}
 
-		wp_redirect( add_query_arg('deleted', count( $bulklinks ), admin_url( 'link-manager.php' ) ) );
-		exit;
+		$redirect_to = add_query_arg( 'deleted', count( $bulklinks ), $redirect_to );
+	} else {
+		/**
+		 * Fires when a custom bulk action should be handled.
+		 *
+		 * The redirect link should be modified with success or failure feedback
+		 * from the action to be used to display feedback to the user.
+		 *
+		 * @since 4.7.0
+		 *
+		 * @param string $redirect_to The redirect URL.
+		 * @param string $doaction    The action being taken.
+		 * @param array  $bulklinks   The links to take the action on.
+		 */
+		$redirect_to = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $redirect_to, $doaction, $bulklinks );
 	}
+	wp_redirect( $redirect_to );
+	exit;
 } elseif ( ! empty( $_GET['_wp_http_referer'] ) ) {
 	 wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce' ), wp_unslash( $_SERVER['REQUEST_URI'] ) ) );
 	 exit;
diff --git a/wp-admin/network/site-themes.php b/wp-admin/network/site-themes.php
index 1e9b92a6e3..91355c394d 100644
--- a/wp-admin/network/site-themes.php
+++ b/wp-admin/network/site-themes.php
@@ -122,6 +122,29 @@ if ( $action ) {
 				$n = 'none';
 			}
 			break;
+		default:
+			if ( isset( $_POST['checked'] ) ) {
+				check_admin_referer( 'bulk-themes' );
+				$themes = (array) $_POST['checked'];
+				$n = count( $themes );
+				/**
+				 * Fires when a custom bulk action should be handled.
+				 *
+				 * The redirect link should be modified with success or failure feedback
+				 * from the action to be used to display feedback to the user.
+				 *
+				 * @since 4.7.0
+				 *
+				 * @param string $referer The redirect URL.
+				 * @param string $action  The action being taken.
+				 * @param array  $themes  The themes to take the action on.
+				 * @param int    $site_id The current site id
+				 */
+				$referer = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $referer, $action, $themes, $id );
+			} else {
+				$action = 'error';
+				$n = 'none';
+			}
 	}
 
 	update_option( 'allowedthemes', $allowed_themes );
diff --git a/wp-admin/network/site-users.php b/wp-admin/network/site-users.php
index 59d30c2386..36ce31ae17 100644
--- a/wp-admin/network/site-users.php
+++ b/wp-admin/network/site-users.php
@@ -164,6 +164,28 @@ if ( $action ) {
 				$update = 'err_promote';
 			}
 			break;
+		default:
+			if ( ! isset( $_REQUEST['users'] ) ) {
+				break;
+			}
+			check_admin_referer( 'bulk-users' );
+			$userids = $_REQUEST['users'];
+			/**
+			 * Fires when a custom bulk action should be handled.
+			 *
+			 * The redirect link should be modified with success or failure feedback
+			 * from the action to be used to display feedback to the user.
+			 *
+			 * @since 4.7.0
+			 *
+			 * @param string $referer The redirect URL.
+			 * @param string $action  The action being taken.
+			 * @param array  $userids The users to take the action on.
+			 * @param int    $id      The id of the current site
+			 */
+			$referer = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $referer, $action, $userids, $id );
+			$update = $action;
+			break;
 	}
 
 	wp_safe_redirect( add_query_arg( 'update', $update, $referer ) );
diff --git a/wp-admin/network/sites.php b/wp-admin/network/sites.php
index 38aa2ec49d..9b3343c89b 100644
--- a/wp-admin/network/sites.php
+++ b/wp-admin/network/sites.php
@@ -160,6 +160,26 @@ if ( isset( $_GET['action'] ) ) {
 						wp_die( __( 'Sorry, you are not allowed to change the current site.' ) );
 					}
 				}
+				if ( ! in_array( $doaction, array( 'delete', 'spam', 'notspam' ), true ) ) {
+					$redirect_to = wp_get_referer();
+					$blogs = (array) $_POST['allblogs'];
+					/**
+					 * Fires when a custom bulk action should be handled.
+					 *
+					 * The redirect link should be modified with success or failure feedback
+					 * from the action to be used to display feedback to the user.
+					 *
+					 * @since 4.7.0
+					 *
+					 * @param string $redirect_to The redirect URL.
+					 * @param string $doaction      The action being taken.
+					 * @param array  $blogs       The blogs to take the action on.
+					 * @param int    $site_id     The current site id.
+					 */
+					$redirect_to = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $redirect_to, $doaction, $blogs, $id );
+					wp_safe_redirect( $redirect_to );
+					exit();
+				}
 			} else {
 				$location = network_admin_url( 'sites.php' );
 				if ( ! empty( $_REQUEST['paged'] ) ) {
diff --git a/wp-admin/network/themes.php b/wp-admin/network/themes.php
index 171afc359d..40530ba2bd 100644
--- a/wp-admin/network/themes.php
+++ b/wp-admin/network/themes.php
@@ -195,7 +195,32 @@ if ( $action ) {
 				's' => $s
 			), network_admin_url( 'themes.php' ) ) );
 			exit;
+		default:
+			$themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
+			if ( empty( $themes ) ) {
+				wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) );
+				exit;
+			}
+			check_admin_referer( 'bulk-themes' );
+
+			/**
+			 * Fires when a custom bulk action should be handled.
+			 *
+			 * The redirect link should be modified with success or failure feedback
+			 * from the action to be used to display feedback to the user.
+			 *
+			 * @since 4.7.0
+			 *
+			 * @param string $referer   The redirect URL.
+			 * @param string $action    The action being taken.
+			 * @param array  $themes    The themes to take the action on.
+			 */
+			$referer = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $referer, $action, $themes );
+
+			wp_safe_redirect( $referer );
+			exit;
 	}
+
 }
 
 $wp_list_table->prepare_items();
diff --git a/wp-admin/network/users.php b/wp-admin/network/users.php
index cc3edc2ca3..437f76538c 100644
--- a/wp-admin/network/users.php
+++ b/wp-admin/network/users.php
@@ -93,6 +93,28 @@ if ( isset( $_GET['action'] ) ) {
 					}
 				}
 
+				if ( ! in_array( $doaction, array( 'delete', 'spam', 'notspam' ), true ) ) {
+					$sendback = wp_get_referer();
+
+					$user_ids = (array) $_POST['allusers'];
+					/**
+					 * Fires when a custom bulk action should be handled.
+					 *
+					 * The sendback link should be modified with success or failure feedback
+					 * from the action to be used to display feedback to the user.
+					 *
+					 * @since 4.7.0
+					 *
+					 * @param string $sendback The redirect URL.
+					 * @param string $doaction The action being taken.
+					 * @param array  $user_ids The users to take the action on.
+					 */
+					$sendback = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $sendback, $doaction, $user_ids );
+
+					wp_safe_redirect( $sendback );
+					exit();
+				}
+
 				wp_safe_redirect( add_query_arg( array( 'updated' => 'true', 'action' => $userfunction ), wp_get_referer() ) );
 			} else {
 				$location = network_admin_url( 'users.php' );
diff --git a/wp-admin/plugins.php b/wp-admin/plugins.php
index 0e59ed93a1..6474e4691f 100644
--- a/wp-admin/plugins.php
+++ b/wp-admin/plugins.php
@@ -356,7 +356,33 @@ if ( $action ) {
 				update_site_option( 'recently_activated', array() );
 			}
 			break;
+
+		default:
+			if ( isset( $_POST['checked'] ) ) {
+				check_admin_referer('bulk-plugins');
+				$plugins = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
+				$sendback = wp_get_referer();
+
+				/**
+				 * Fires when a custom bulk action should be handled.
+				 *
+				 * The sendback link should be modified with success or failure feedback
+				 * from the action to be used to display feedback to the user.
+				 *
+				 * @since 4.7.0
+				 *
+				 * @param string $sendback The redirect URL.
+				 * @param string $action   The action being taken.
+				 * @param array  $plugins  The plugins to take the action on.
+				 */
+				$sendback = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $sendback, $action, $plugins );
+
+				wp_safe_redirect( $sendback );
+				exit;
+			}
+			break;
 	}
+
 }
 
 $wp_list_table->prepare_items();
diff --git a/wp-admin/upload.php b/wp-admin/upload.php
index b9495ac059..654902353e 100644
--- a/wp-admin/upload.php
+++ b/wp-admin/upload.php
@@ -163,6 +163,20 @@ if ( $doaction ) {
 			}
 			$location = add_query_arg( 'deleted', count( $post_ids ), $location );
 			break;
+		default:
+			/**
+			 * Fires when a custom bulk action should be handled.
+			 *
+			 * The redirect link should be modified with success or failure feedback
+			 * from the action to be used to display feedback to the user.
+			 *
+			 * @since 4.7.0
+			 *
+			 * @param string $location The redirect URL.
+			 * @param string $doaction The action being taken.
+			 * @param array  $post_ids The posts to take the action on.
+			 */
+			$location = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $location, $doaction, $post_ids );
 	}
 
 	wp_redirect( $location );
diff --git a/wp-admin/users.php b/wp-admin/users.php
index 194ced94d0..42f34f7fe7 100644
--- a/wp-admin/users.php
+++ b/wp-admin/users.php
@@ -410,6 +410,28 @@ default:
 		exit;
 	}
 
+	if ( $wp_list_table->current_action() && ! empty( $_REQUEST['users'] ) ) {
+		$userids = $_REQUEST['users'];
+		$sendback = wp_get_referer();
+
+		/**
+		 * Fires when a custom bulk action should be handled.
+		 *
+		 * The sendback link should be modified with success or failure feedback
+		 * from the action to be used to display feedback to the user.
+		 *
+		 * @since 4.7.0
+		 *
+		 * @param string $sendback The redirect URL.
+		 * @param string $action   The action being taken.
+		 * @param array  $userids  The users to take the action on.
+		 */
+		$sendback = apply_filters( 'handle_bulk_actions-' . get_current_screen()->id, $sendback, $wp_list_table->current_action(), $userids );
+
+		wp_safe_redirect( $sendback );
+		exit;
+	}
+
 	$wp_list_table->prepare_items();
 	$total_pages = $wp_list_table->get_pagination_arg( 'total_pages' );
 	if ( $pagenum > $total_pages && $total_pages > 0 ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 03698f1f9d..c3232dbfb2 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38646';
+$wp_version = '4.7-alpha-38647';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.