There's now an 'S' or platinum rank for site records. So the rest have been shuffled about like so:
A/Red (formerly records) - Top 20%
B/Orange (formerly Top 25%) - 20-40%
C/Yellow (formerly 25-50%) - 40-60%
D/Green (formerly 50-75%) - 60-80%
E/Blue (formerly Bottom 25%) - Bottom 20%
So it's a bit more lenient, in that a lot of old oranges will now be red and somewhat less yellows will now be orange. However, this is compensated for in that the game rankings are significantly
sterner. In the past, achieving green status for a game required beating 25% of the game's players, which generally meant making a few submissions. Now, you'll have to actually average green status in the game's levels, which means that those who submitted a handful of times before and got green (or higher) won't be able to do so anymore just because others submitted even less. It also, IMO, makes the game ranking colors a more accurate indication of skill. X)