Haha cause the new OS will be announced later this month

That's mainly the reason why the standard user should not upgrade until the official version in my honest opinion. Unless those computer savvy types who are literate with coding and troubleshooting to help the developers should proceed. Best it to perform a Time Machine backup before anything. Losing years of work would definitely be a pain in the arse, for just being 'at the edge' for some people who wants to always be updated just because.