That isn't possible. There is too much of a difference in versions. Its not like upgrading Windows or Mac.
I wouldn't know about that as I've never upgraded a Windows or Mac PC.
I suggest you back everything up and then install Linux Mint 4.0 Daryna.
Well, that's what I've been doing all along since 1999 with RPM-based Red Hat, Mandrake and SuSE. This being my first time upgrading a debian-based distro I was hoping I wouldn't have to because I've heard that complete, fresh re-installs aren't needed with debian.
Use an external hard drive to back it up to make it easier or just burn a dvd with the info (If your computer doesn't have a DVD burner, use an external hard drive).
Yeah, I've got that much down. I just bought both a 500GB external and a 1TB external drive for great prices on Black Friday.
If you want to wait you can also try the Linux Mint E17 edition.
What's up with that?
I mean it! Don't try to upgrade otherwise your computer will either be really slow or won't even boot Linux Mint (I am sure of it).
This is in accordance with my experience with all my previous RPM-based distributions. Only once did I choose to merely upgrade rather than re-install with Red Hat a few years ago. The upgrade went smoothly. It booted just fine. It didn't run any slower than before. The only thing that irked me is that it didn't fully upgrade my existing system to what I would have had had I opted to re-install from scratch. I was left with a sorta kinda half-n-half setup that didn't deliver what I expected.
Wish I could get a little more technical insight into what actually would happen if I opted to upgrade from Bianca to Daryna instead.