Jquery UI 1.5 Final?

Jquery UI 1.5 Final?


I am about to begin a Web 2.0 project using Jquery and Jquery UI. And
I am wondering if 1.5b will be portable to 1.5 final without major
rework so I won't waste my development time now.
And when can I expect 1.5 final to be release?
P.S: Many thanks for the development team for the hard work.