I was about to buy this and then noticed the latest update post here is from 2014, is this really the case? I think Steam had another update just this month.

It would be too bad if Gog's was just abandoned and really makes me thing twice now about getting things here. I guess I'll just wait for a Humble Bundle, I sure won't be supporting a purchase through steam.

The included patch I'm seeing is for the version released on 15 OCTOBER, 2014.
So we might be quite a bit behind. :l

Edit: I asked the devs, they're now looking into it.

Cool, thanks!

I wasn't sure if the game was updated and there wasn't a post about it or it just never happend. Its frustrating when you pay the same price (or more) as on Steam and then get treated second class :(

True, just keep an eye on this thread if you want to avoid such things in the future:
https://www.gog.com/forum/general/suggestions_wanted_for_gog_mix_games_that_treat_gog_customers_as_second_class_citizens