Welcome to the first Subsonic Labs product - Wolfram and to the first post in this forum.
The current released version of Wolfram is 1.0 for both OSX and Windows. It has been tested by a number of users for some time and there are no known big issues. Please let us know if you find anything weird.
Feel free to use this part of the forum for everything that has to do with Wolfram. Hope you'll enjoy your stay.