This version is in portage for 2 months with no problems occured. Reproducible: Always
Not sure about protocol, but I second this request. Working great in amd64
Also, the current stable version seems to be broken, so an updated stable release would be nice. I would like this to stabilize on PPC too. It's the only game I play nowadays and it works great.
x86 stable
amd64 stable, all arches done.