wp-admin/includes/class-wp-ms-sites-list-table.php:291array protected function get_bulk_actions() { $actions = array(); if ( current_user_can( 'delete_sites' ) ) { $actions['delete'] = __( 'Delete' ); } $actions['spam'] = _x( 'Mark as spam', 'site' ); $actions['notspam'] = _x( 'Not spam', 'site' ); return $actions; }One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
array to array<string,.verified against sourcesrc/wp-admin/includes/class-wp-ms-sites-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.