function wp_version_check( $extra_stats = array(), $force_check = false ) {
  global $wpdb, $wp_local_package;

  if ( wp_installing() ) {
    return;
  }

  // Include an unmodified $wp_version.
  require ABSPATH . WPINC . '/version.php';
  $php_version = phpversion();

  $current      = get_site_transient( 'update_core' );
  $translations = wp_get_installed_translations( 'core' );

  // Invalidate the transient when $wp_version changes.
  if ( is_object( $current ) && $wp_version !== $current->version_checked ) {
    $current = false;
  }

  if ( ! is_object( $current ) ) {
    $current                  = new stdClass;
    $current->updates         = array();
    $current->version_checked = $wp_version;
  }

  if ( ! empty( $extra_stats ) ) {
    $force_check = true;
  }

  // Wait 1 minute between multiple version check requests.
  $timeout          = MINUTE_IN_SECONDS;
  $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );

  if ( ! $force_check && $time_not_changed ) {
    return;
  }

  
/**
 * Filters the locale requested for WordPress core translations.
 *
 * @since 2.8.0
 *
 * @param string $locale Current locale.
 */
  $locale = apply_filters( 'core_version_check_locale', get_locale() );

  // Update last_checked for current to prevent multiple blocking requests if request hangs.
  $current->last_checked = time();
  set_site_transient( 'update_core', $current );

  if ( method_exists( $wpdb, 'db_version' ) ) {
    $mysql_version = preg_replace( '/[^0-9.].*/', '', $wpdb->db_version() );
  } else {
    $mysql_version = 'N/A';
  }

  if ( is_multisite() ) {
    $num_blogs         = get_blog_count();
    $wp_install        = network_site_url();
    $multisite_enabled = 1;
  } else {
    $multisite_enabled = 0;
    $num_blogs         = 1;
    $wp_install        = home_url( '/' );
  }

  $query = array(
    'version'            => $wp_version,
    'php'                => $php_version,
    'locale'             => $locale,
    'mysql'              => $mysql_version,
    'local_package'      => isset( $wp_local_package ) ? $wp_local_package : '',
    'blogs'              => $num_blogs,
    'users'              => get_user_count(),
    'multisite_enabled'  => $multisite_enabled,
    'initial_db_version' => get_site_option( 'initial_db_version' ),
  );

  
/**
 * Filters the query arguments sent as part of the core version check.
 *
 * WARNING: Changing this data may result in your site not receiving security updates.
 * Please exercise extreme caution.
 *
 * @since 4.9.0
 *
 * @param array $query {
 *     Version check query arguments.
 *
 *     @type string $version            WordPress version number.
 *     @type string $php                PHP version number.
 *     @type string $locale             The locale to retrieve updates for.
 *     @type string $mysql              MySQL version number.
 *     @type string $local_package      The value of the $wp_local_package global, when set.
 *     @type int    $blogs              Number of sites on this WordPress installation.
 *     @type int    $users              Number of users on this WordPress installation.
 *     @type int    $multisite_enabled  Whether this WordPress installation uses Multisite.
 *     @type int    $initial_db_version Database version of WordPress at time of installation.
 * }