Most of the discussion is buried in "
Where are all the great spy RPGs?"
I played this new version at Gary Con in March '17, and last year, too, as a prototype system. It reminds me of a mix between Savage Worlds and a dice pool system. It runs smoothly and gives you fairly detailed characters, but doesn't get in the way of the action (contrasted to first play test I played in 2016 where it was fairly clunky and confusing). The people working on it all have a good grasp of the genre and were big fans of the original, to boot. It doesn't hurt that the original creator is back (with whom I've also played the original Top Secret).
Dice are assigned to your attributes (like in Savage Worlds), your skills, and the assets you select for the your mission also have a die assigned. When you perform an action, you take the appropriate Attribute Die + Your Skill Die + Your Asset and roll to beat Lucky 13 (w/situational modifiers that the GM has). There are also fortune points you can use to re-roll, but the PC doesn't know when their fortune will run out (so from just playing, I'm not sure how those are determined).
Assets are things like Spy gear, contacts, etc, and are chosen on a per-mission basis. Of course, the game isn't totally finalized, so something may be changed, but it felt pretty polished to me.