Is it currently possible to use SME 9.2 and wait,
or is it absolutely necessary to migrate to SME 10 beta ?
If you are installing new then use v10 Beta. It is pretty solid. There may be a few fixes coming but we think all the core stuff is OK now.
If you have an existing 9.2 then remember it is no longer supported. I would be running test upgrades to make sure it all goes OK and see what may be missing.
Either way, you should be working on it right now.