2008 they got a fairly hefty redesign, 2011 the pinch bolts on the swingarm were replaced with collet bolts, 2012 tapered headtube. I think that is pretty much the recent evolution.
My 2011 Medium frame was 2570g with a Fox Float R and chainstay protector (to the nearest 10g). Pretty much the same weight as an Anthem etc but larger mud clearance and fewer pivots, more fun and slightly less “XC race”.
In 18 months of all weather off road riding I have only needed to replace the lower shock bush- everything else is running as new. A slight tune of the shock at Loco made it even sweeter but a great all round frame. I view the Superlight as a more practical, more fun and more maintenance free XC bike in the Anthem mold. It has a more robust and fun feel than the Anthem at the expense of a slight feeling of XC race speed. If this fits your bill then you certainly won’t be disappointed.