how to update roundcube mail to latest version

hello
is there any one who can guide me how to update the roundcube mail to latest version?
i tried the process given by user 'bullten' but it came up with error every time.
thanks in advance

Hello.

You can install it like any PHP CMS. Roundcube it is just PHP scripts.
In CWP it in /usr/local/apache/htdocs/roundcube  and owner user "nobody".