This package has been out for months now and is stable on most other archs. No open bugs, and I can't find any issues. It looks like the only change from previous stable was moving around a few directories. 3.6.4 also looks fine, but there are more changes in the upstream software - mostly in calculations that I wouldn't know if they were right or wrong. I'd be hesitant to mark that stable since x86 hasn't yet.
Marked stable, thanks.