Skinney/homebrew — comment on commit 05989d8fc3ae87794287e9352696c2b3486d7aa9
File:  line 0
By Skinney:

That might well be the case, however, once xz support is added to brew over the weekend, i'll push version 0.14.1 (currently only available as xz archive) and then version is required to avoid illegeal @version error...