Whoa! big changes in b4?

I just did the CVS update to b4, and it broke my installer royally... got it fixed (mainly changes from !define to !insertmacro on the pages) but are there any other potential roadblocks I should be aware of?

The MUI has changed a lot, you should check the readme again to make sure everything is right. Other than that, there is nothing that should be tweaked, your installer should work.