I upgrade my openSUSE to 11.2 milestone 1. Can i update it easy to the Stable release or will be all updates includet, so that i have in the end the stable release? I’m new with openSUSE.
It can be done however it would not be advised.
Updates are notorious for being more trouble than they are worth.
A clean install is always the best way to go.
Also if you are only new to opensuse it might be advisable to avoid the 11.2 builds until they mature a bit.