I'm keen to get this stabilized as I'm aware of path issues and endianness issues in the older versions. There is no need to do runtime testing as there is a very comprehensive test suite. *PLEASE* do run that! It's not a dependency but it will run a few extra tests if you have sci-visualization/gnuplot installed.
amd64 stable
x86 stable
ppc stable
Stable on alpha.
sparc stable
arm ppc64 stable, closing.