I have used r4's in the past. However, this is the first time I am getting a cart for 3ds. Which would be better. The 2016 update says r4i gold works for all versions of the 3ds. I guess this is newish because it is hard to find reviews of this card and update as compared to other cards. Anyone using it that can comment on how they like it and compatibility? Also I tried looking here on the cart compare page on gbatemp. I think it is old though because r4i says only for 4.5 EDIT: I am on version 9.4.0-21U. Should I update it?