def check_update():
    """
    Check for app updates and print/log them.
    """
    logging.info('Check for app updates.')
    try:
        update = updater.check_for_app_updates()
    except Exception:
        logging.exception('Check for updates failed.')
        return
    if update:
        print("!!! UPDATE AVAILABLE !!!\n"
              "" + static_data.PROJECT_URL + "\n\n")
        logging.info("Update available: " + static_data.PROJECT_URL)
    else:
        logging.info("No update available.")