3.24 to 4.0 Wipe

Guys I didn't understand a thing, 4.0 is now out as a preview. Since I've got all my money and stuff on the 3.24 Live (I grinded to buy a Connie Taurus) will my shit be transferred to the 4.0 as soon as it goes live? Or there will be a full wipe? Because I tried the 4.0 preview and I don't have nothing right now.. Thanks for the answer