Chicken and egg
It's a catch 22. You need to upgrade your RPM, but guess what? The RPM that upgrades RPM itself gives the same exact <= 3 type message. I downloaded the tarball and it gave me some cryptic error message during the make install. I didn't have time to hack it so at this point I'm looking for an RPM v4 binary from someone else that I can at least use to get past the chicken and egg situation.