Ferrari will be bringing a minor suspension upgrade to Spa this weekend.
(Pictured above) Ferrari's old suspension on the SF-25 compared to its new design
(Pictured above) The angle of the new wishbone on the SF-25 compared to its previous design
Previously, Ferrari had moved their cockpit position back, which crunched the space for the rear suspension of the car. Thus, the damper at the rear of the car had trouble contolling the rear suspension. This negatively impacted the car's ride and produced an unstable balance. Apparently, the central damper was in a less than optimal spot as well, meaning that a lot of control over the movement of the rear suspension was lost. Due to this unpredictability, Ferrari also had to raise the ride of the car so that the plank on the floor of the car would not wear too much.
The new wishbone on the rear wheel is attached to a different point on the gearbox. This obviously affects the angle of the suspension, which aims to reduce squat on the car. What this means is that the car will be more level, battling where gravity tends to pull down its back. If this works as intended in Belgium, the Ferrari will be able to run a more stable suspension, and hence can reduce the ride height, creating more downforce.