Boox Artatech C67ML (AfterGlow 2) --- Upgrade: Yes or No?

I was gifted by a very generous member here, a free Boox Artatech C67ML (AfterGlow 2), with build #1.6.6-artatech 2015-01-21_10-09 f482e42.

I got this yesterday and I've been playing around with it.

I believe there may be a new update.

If so, should I update?

And, if there is a new update, in what manner should I go about getting this update?

Are there any issues that I should know about?

Thanks.

Here's the site with the upgrade (correct?):

http://www.onyx-international.com/in...1-7-2-20150603