Setup Cron to force onTransientUpdate to check hourly

setup-cron

    /**
     * Building Cron-based hook to run periodic update checks and inject update info
     * into WP data structures.
     */
    public function setupCron(){
        if ( $this->enableAutomaticChecking ) {
            if ( !wp_next_scheduled('onTransientUpdate') ) {
                wp_schedule_event(time(), 'hourly', array($this, 'onTransientUpdate'));
            }
        } else {
            wp_clear_scheduled_hook('onTransientUpdate');
        }
    }