Freebsd-Update & Stable Dist's

[Don O'Neil]

When I built my latest server I used a FreeBSD 6.1-STABLE-200608 ISO image
that was produced on one of the serveral 'snapshot' sites....

However, I was going to run freebsd-update to check for any patches, etc..
That may need to be applied and it says it won't run on my machine:

This system is running FreeBSD 6.1-STABLE-200608.
FreeBSD Update is only designed to track FreeBSD Security
and Errata branches and cannot update this system

I was wondering if there is a way to force it to think my machine is really
6.1-RELEASE, or to safely use freebsd-update on my machine.