Well, it should work if your snapshot is pre-4.3. The FAQ says that

upgrades should work if your current release is minus one from the

release you are upgrading to.
>

quoted text
>  Ok, so to clarify, I was running a snapshot on my macppc machine.

>

>  I've been finding it a bit slow, but nice enough, bnut with the release

>  "realeased" as it were, I should now rebuild the kernel/userland to

>  incorporate the changes?

>

>  Sorry if this is in the FAQ somewhere, I've been unable to find it.

>

>  Cheers

>

>

>  Rich Healey