According to "Alpha Release Notes for Gentoo Linux 2005.1", gentoo 2005.1 is available for Alpha, but no profile for 2005.1 is available. Reproducible: Always Steps to Reproduce: 1. 2. 3.
There's no 2005.1 profile as there's no profile changes from 2005.0 to 2005.1.
Thanks for the explanation.