Renault introduced yet another front wing, this time a much simpler one as less downforce is required at Monza. The complicated end plates have become a bit more simple as the stacked front wing element and the winglet outward of the panel were ditched to reduce drag.
Renault did retain the basic structure of the wing, but a V-cut was made into the upper panel, ahead of the inside of the front wheel. While it could help brake cooling, the team's wind tunnel tests had certainly shown where along the wing this cut is most efficient.
Note that the Belgian front wing also was a new version, and it's not unthinkable that we will see another new one at the high downforce circuit of Singapore.