The Man from Saturn gets an update, and Xodiac has been given a minor tweak to his accessories. The original figure was pretty fantastic and, I would've assumed, flawless. Nothing really beats that metallic blue suit, but it turns out that the accessories were not quite the right shade relative to the original.
The revised 2.0 figure has candylike clear red accessories and a bright orange helmet. The 1.0 release has pink accessories, and a yellowish green helmet. The 2.0 figure more precisely matches the photography on the packaging, though, and it seems a smidgen less sparkly than the eye-catching original, although they may be 4% more vibrant.
Surprisingly, it seems the 1.0 accessories more closely match the original bendable figure while the 2.0 helmet seems to be closer in the pictures. I say "seem to" because I've only seen the original Colorforms figures in person but once at Futuretro in New York last February. I'd say the 2.0 is, overall, better but you might not notice the difference at first.