It's the same... the only new features are better search filters, fixed bugs and several graphical enhancments. All config files are the same except for the main lazarus.ini, which has been changed to frontend.ini. It's still very similar.
In other words no conversion necessary, although skins might have to be altered slightly to get the desired effect.
The main thing you need to worry about right now is your video card and system. Not all video cards are working right at the moment so check the bug report sticky and see if your card has been tested. Also it takes more resources, particularly for complicated skins. So if your system is less that a 600 mhz with about 256-512 megs of ram just forget it.
