You guys just solved a mystery for me.

I ordered a HV-065 chainset, and got this:


Says HV-065 / HV-093 on it. That was confusing.

Also noted new chains had two blue links per chain versus one on my original chains.
(New chains in bag in pics):



At first I thought maybe I got some kind of counterfeit or poorly-QC'd chains.
Now I know I've actually got backward-compatible GXP heat-treated chains. Awesome