Here, I think this is what you're looking for:
http://www.freebsd.org/doc/handbook/updating-upgrading-freebsdupdate.html
You should be able to move from 9.1-RELEASE to 9-STABLE with freebsd-update :)
On Feb 20, 2013, at 9:57 AM, Nurhermansyah eka <ekanotix99 at gmail.com>
wrote:
> hi,
> oh ya .. true .. "I'm running 9.1-RELEASE and I want to update to
9-STABLE"
>
> it's how to update to 9-STABLE?
>
> thank you
>
> sorry if my english is bad, i from indonesia..
>
>
> 2013/2/20 Damien Fleuriot <ml at my.gd>
>
> On 20 Feb 2013, at 06:03, Nurhermansyah eka <ekanotix99 at gmail.com>
wrote:
>
> > hi all..
> >
> > if I could make a stable version for freebsd 9.1-release ??
> >
> > thanks
> >
>
> Hi,
>
> Did you mean "I'm running 9.1-RELEASE and I want to update it to
9-STABLE" ?
>
> If not, kindly clarify...
>