These changes will affect grip, for the better. By having a precise fraction less grip on power and cornering, the car should be interesting to drive (try the different tyre compounds to feel the difference between each). Force-feedback being too high in the first version has been addressed too here.
Changelog v1.1: Tyre compounds should feel different, tyre calculations improved for less grip, minor suspension value change, suspension damage values added, force-feedback improved, new camera positions, lower DRS performance, small change to gear ratios.