Sparkle: is Scrivener vulnerable to highjacking?

I read that a huge number of Mac programs are vulnerable to a man-in-the-middle attack (http://arstechnica.com/security/2016/02/huge-number-of-mac-apps-vulnerable-to-hijacking-and-a-fix-is-elusive/) because they use Sparkle’s framework for its update mechanism. I ran a search and Scrivener uses Sparkle. Does this mean it’s vulnerable? Is Literature and Latte planing to fix this if that’s the case?

Thanks for the help.
Cheers