Updating Files app
If you for some reason have edited
index.php directly, those changes will be lost.
Show updates in Files app
If you have enabled the
check_updates option in config, you will be notified directly in Files app when there is an update available. Furthermore, you will have options to "update", "download" or "read more" directly from the interface. This option is disabled by default, because you might not want this option available public.